Bug 41097 - Mono crashes when starting XSP
Summary: Mono crashes when starting XSP
Status: RESOLVED NORESPONSE
Alias: None
Product: Runtime
Classification: Mono
Component: General (show other bugs)
Version: 4.5.X
Hardware: PC Linux
: Normal normal
Target Milestone: Future Cycle (TBD)
Assignee: Aleksey Kliger
URL:
Depends on:
Blocks:
 
Reported: 2016-05-16 07:30 UTC by Sergey Zhukov
Modified: 2017-10-11 17:37 UTC (History)
3 users (show)

See Also:
Tags:
Is this bug a regression?: ---
Last known good build:


Attachments

Description Sergey Zhukov 2016-05-16 07:30:00 UTC
I often get this crash when start XSP. In most cases it crashes on the first run, after the first crash when I run it second time it starts to work. This might be happen due to disk IO while reading files or something like this, after first read files were cached and maybe this allows to run second time without the crash. This is just assumption, I do not 100% sure that the disk IO correlates with this crash (but me computer is not very fast and do not have SSD, so I think this could be the issue). These crashes came with mono 4.4. I did not met them in version 4.0 and 4.2 

OS: Ubuntu Linux 32 bit
Mono JIT compiler version 4.5.0 (master/8e35235 Sat Apr  2 21:09:06 NOVT 2016)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. www.mono-project.com
	TLS:           __thread
	SIGSEGV:       altstack
	Notifications: epoll
	Architecture:  x86
	Disabled:      none
	Misc:          softdebug 
	LLVM:          supported, not enabled.
	GC:            sgen



STATE CUE CARD: (? means a positive number, usually 1 or 2, * means any number)
	0x0	- starting (GOOD, unless the thread is running managed code)
	0x1	- running (BAD, unless it's the gc thread)
	0x2	- detached (GOOD, unless the thread is running managed code)
	0x?03	- async suspended (GOOD)
	0x?04	- self suspended (GOOD)
	0x?05	- async suspend requested (BAD)
	0x?06	- self suspend requested (BAD)
	0x*07	- blocking (GOOD)
	0x?08	- blocking with pending suspend (GOOD)
--thread 0x8e613a8 id 0x40243700 [(nil)] state 1  
--thread 0x41a00478 id 0x41925b40 [(nil)] state 1  
--thread 0x41d00478 id 0x41c00b40 [(nil)] state 1  
--thread 0x43000478 id 0x42fa1b40 [(nil)] state 1  
--thread 0x9f38400 id 0x42fc2b40 [(nil)] state 1  
--thread 0x41d05038 id 0x43200b40 [(nil)] state 1  
--thread 0x44fd07a0 id 0x43301b40 [(nil)] state 1  
--thread 0x9476e20 id 0x43422b40 [(nil)] state 1  
--thread 0x47f19828 id 0x44e00b40 [(nil)] state 1  
--thread 0x4a9806e0 id 0x45100b40 [(nil)] state 1  
--thread 0x45bfeef0 id 0x45f10b40 [(nil)] state 103  
--thread 0x4616cd48 id 0x46780b40 [(nil)] state 1  
--thread 0x46e31c08 id 0x4721db40 [(nil)] state 1  
--thread 0x46df2ca8 id 0x47b1ab40 [(nil)] state 1  
--thread 0x45dd1ce8 id 0x49e00b40 [(nil)] state 1  
--thread 0x41d72c80 id 0x49f71b40 [(nil)] state 1  
--thread 0x46051208 id 0x4ae2bb40 [(nil)] state 1  
--thread 0x45daa630 id 0x4b510b40 [(nil)] state 1  
--thread 0x4c9b97f0 id 0x4d280b40 [(nil)] state 1  
--thread 0x4c9a2750 id 0x4d700b40 [(nil)] state 1  
--thread 0x50c6f918 id 0x50e10b40 [(nil)] state 1  
--thread 0x50b01e08 id 0x50e31b40 [(nil)] state 1  GC INITIATOR
--thread 0x50c6cd18 id 0x50fb4b40 [(nil)] state 1  
--thread 0x50c732a0 id 0x510b5b40 [(nil)] state 1  
--thread 0x4300c300 id 0x51238b40 [(nil)] state 1  
--thread 0x50b33e48 id 0x51339b40 [(nil)] state 1  
WAITING for 1 threads, got 0 suspended
Symbol file /usr/lib/mono/gac/Mono.WebServer2/0.4.0.0__0738eb9f132ed756/Mono.WebServer2.dll.mdb doesn't match image /usr/lib/mono/gac/Mono.WebServer2/0.4.0.0__0738eb9f132ed756/Mono.WebServer2.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Runtime.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Runtime.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Resources.ResourceManager.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Resources.ResourceManager.dll
Symbol file /usr/lib/mono/4.5/Facades/System.IO.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.IO.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Reflection.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Reflection.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Globalization.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Globalization.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Runtime.Extensions.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Runtime.Extensions.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Linq.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Linq.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Collections.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Collections.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Threading.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Threading.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Threading.Tasks.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Threading.Tasks.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Collections.Concurrent.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Collections.Concurrent.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Threading.Tasks.Parallel.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Threading.Tasks.Parallel.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Text.Encoding.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Text.Encoding.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Xml.ReaderWriter.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Xml.ReaderWriter.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Reflection.Extensions.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Reflection.Extensions.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Runtime.InteropServices.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Runtime.InteropServices.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Dynamic.Runtime.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Dynamic.Runtime.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Text.Encoding.Extensions.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Text.Encoding.Extensions.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Reflection.Primitives.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Reflection.Primitives.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Xml.XDocument.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Xml.XDocument.dll
Symbol file /usr/lib/mono/4.5/Facades/System.Diagnostics.Debug.dll.mdb doesn't match image /usr/lib/mono/4.5/Facades/System.Diagnostics.Debug.dll
suspend_thread suspend took 200 ms, which is more than the allowed 200 ms
Stacktrace:


Native stacktrace:

	/usr/bin/mono() [0x80f788f]
	/lib/i386-linux-gnu/libpthread.so.0(+0xef30) [0x4008cf30]
	/lib/ld-linux.so.2(+0x11b2) [0x400011b2]
	/lib/i386-linux-gnu/libc.so.6(gsignal+0x4f) [0x400c7e1f]
	/lib/i386-linux-gnu/libc.so.6(abort+0x175) [0x400cb465]
	/usr/bin/mono() [0x82a3396]
	/usr/bin/mono() [0x82a3279]
	/usr/bin/mono() [0x82a32b6]
	/usr/bin/mono() [0x8297ee0]
	/usr/bin/mono() [0x8298c42]
	/usr/bin/mono() [0x8113ba2]
	/usr/bin/mono(mono_g_hash_table_foreach+0x53) [0x82054b3]
	/usr/bin/mono() [0x8116f32]
	/usr/bin/mono() [0x8124626]
	/usr/bin/mono() [0x8124a22]
	/usr/bin/mono() [0x8125891]
	/usr/bin/mono() [0x81d4bf4]
	/usr/bin/mono() [0x81e1605]
	/usr/bin/mono() [0x829aa1a]
	/lib/i386-linux-gnu/libpthread.so.0(+0x6d4c) [0x40084d4c]
	/lib/i386-linux-gnu/libc.so.6(clone+0x5e) [0x40188e8e]

Debug info from gdb:

Mono support loaded.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0x50e31b40 (LWP 23130)]
[New Thread 0x51339b40 (LWP 21382)]
[New Thread 0x51238b40 (LWP 21381)]
[New Thread 0x510b5b40 (LWP 14622)]
[New Thread 0x50fb4b40 (LWP 14613)]
[New Thread 0x50e10b40 (LWP 12191)]
[New Thread 0x4d700b40 (LWP 12185)]
[New Thread 0x4d280b40 (LWP 12177)]
[New Thread 0x49f71b40 (LWP 12174)]
[New Thread 0x45100b40 (LWP 12164)]
[New Thread 0x4ae2bb40 (LWP 12159)]
[New Thread 0x4b510b40 (LWP 12127)]
[New Thread 0x46780b40 (LWP 12122)]
[New Thread 0x49e00b40 (LWP 12121)]
[New Thread 0x47b1ab40 (LWP 12110)]
[New Thread 0x43301b40 (LWP 12109)]
[New Thread 0x43200b40 (LWP 12100)]
[New Thread 0x44e00b40 (LWP 12088)]
[New Thread 0x4721db40 (LWP 12044)]
[New Thread 0x45f10b40 (LWP 12033)]
[New Thread 0x43422b40 (LWP 12026)]
[New Thread 0x42fc2b40 (LWP 12019)]
[New Thread 0x42fa1b40 (LWP 12017)]
[New Thread 0x41c00b40 (LWP 12011)]
[New Thread 0x41925b40 (LWP 12010)]
[New Thread 0x40674b40 (LWP 12008)]
0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  Id   Target Id         Frame 
  27   Thread 0x40674b40 (LWP 12008) "mono" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  26   Thread 0x41925b40 (LWP 12010) "Finalizer" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  25   Thread 0x41c00b40 (LWP 12011) "mono" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  24   Thread 0x42fa1b40 (LWP 12017) "mono" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  23   Thread 0x42fc2b40 (LWP 12019) "mono" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  22   Thread 0x43422b40 (LWP 12026) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  21   Thread 0x45f10b40 (LWP 12033) "Timer-Scheduler" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  20   Thread 0x4721db40 (LWP 12044) "Timer-Scheduler" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  19   Thread 0x44e00b40 (LWP 12088) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  18   Thread 0x43200b40 (LWP 12100) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  17   Thread 0x43301b40 (LWP 12109) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  16   Thread 0x47b1ab40 (LWP 12110) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  15   Thread 0x49e00b40 (LWP 12121) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  14   Thread 0x46780b40 (LWP 12122) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  13   Thread 0x4b510b40 (LWP 12127) "Timer-Scheduler" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  12   Thread 0x4ae2bb40 (LWP 12159) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  11   Thread 0x45100b40 (LWP 12164) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  10   Thread 0x49f71b40 (LWP 12174) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  9    Thread 0x4d280b40 (LWP 12177) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  8    Thread 0x4d700b40 (LWP 12185) "Timer-Scheduler" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  7    Thread 0x50e10b40 (LWP 12191) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  6    Thread 0x50fb4b40 (LWP 14613) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  5    Thread 0x510b5b40 (LWP 14622) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  4    Thread 0x51238b40 (LWP 21381) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  3    Thread 0x51339b40 (LWP 21382) "Threadpool work" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
  2    Thread 0x50e31b40 (LWP 23130) "Timer-Scheduler" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
* 1    Thread 0x40243700 (LWP 12007) "mono" 0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2

Thread 27 (Thread 0x40674b40 (LWP 12008)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x08266654 in mono_os_cond_wait (cond=0x83bdb20, mutex=<optimized out>) at ../../mono/utils/mono-os-mutex.h:107
#3  thread_func (thread_data=0x0) at sgen-thread-pool.c:110
#4  0x40084d4c in start_thread (arg=0x40674b40) at pthread_create.c:308
#5  0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 26 (Thread 0x41925b40 (LWP 12010)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008acc5 in sem_wait@@GLIBC_2.1 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/sem_wait.S:80
#2  0x08201c15 in mono_os_sem_wait (flags=MONO_SEM_FLAGS_ALERTABLE, sem=0x83b58a4) at ../../mono/utils/mono-os-semaphore.h:163
#3  mono_coop_sem_wait (sem=<optimized out>, flags=<optimized out>) at ../../mono/utils/mono-coop-semaphore.h:40
#4  finalizer_thread (unused=unused@entry=0x0) at gc.c:766
#5  0x081e162b in start_wrapper_internal (data=0x8ebc468) at threads.c:732
#6  start_wrapper (data=0x8ebc468) at threads.c:779
#7  0x0829aa1a in inner_start_thread (arg=0xbfd80498) at mono-threads-posix.c:92
#8  0x40084d4c in start_thread (arg=0x41925b40) at pthread_create.c:308
#9  0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 25 (Thread 0x41c00b40 (LWP 12011)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008bd08 in recv () at ../sysdeps/unix/sysv/linux/i386/socket.S:97
#2  0x08124f38 in recv (__flags=0, __n=11, __buf=0x41c001b1, __fd=3) at /usr/include/i386-linux-gnu/bits/socket2.h:45
#3  socket_transport_recv (buf=0x41c001b1, len=11) at debugger-agent.c:1130
#4  0x0812646a in transport_recv (len=11, buf=0x41c001b1) at debugger-agent.c:1536
#5  debugger_thread (arg=0x0) at debugger-agent.c:9709
#6  0x0829aa1a in inner_start_thread (arg=0xbfd80418) at mono-threads-posix.c:92
#7  0x40084d4c in start_thread (arg=0x41c00b40) at pthread_create.c:308
#8  0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 24 (Thread 0x42fa1b40 (LWP 12017)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x082994aa in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x83be3c4, cond=0x83be3e0) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, cond=<optimized out>, mutex=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  sleep_interruptable (alerted=0x42fa0e9c, ms=1000000) at mono-threads.c:1166
#5  mono_thread_info_sleep (ms=ms@entry=1000000, alerted=alerted@entry=0x42fa0e9c) at mono-threads.c:1198
#6  0x081e2c34 in ves_icall_System_Threading_Thread_Sleep_internal (ms=1000000) at threads.c:1215
#7  0x42e78e6c in ?? ()
#8  0x42e78dd8 in ?? ()
#9  0x42e77264 in ?? ()
#10 0x42e77020 in ?? ()
#11 0x42e76ae6 in ?? ()
#12 0x42e76734 in ?? ()
#13 0x42e76644 in ?? ()
#14 0x42e76498 in ?? ()
#15 0x42c4c1b1 in ?? ()
#16 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x40a4c548, params=0x42fa12bc, exc=<optimized out>, error=0x42fa121c) at mini-runtime.c:2693
#17 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x40a4c548, obj@entry=0x42fa121c, params=params@entry=0x42fa12bc, exc=0x0, error=0x42fa121c) at object.c:2899
#18 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x42fa121c, obj@entry=0x40a4c548, params=params@entry=0x42fa12bc, error=error@entry=0x42fa121c) at object.c:3059
#19 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x40a4c548, params=params@entry=0x42fa12bc, exc=exc@entry=0x0) at object.c:3867
#20 0x081e16a0 in start_wrapper_internal (data=0x94d2c10) at threads.c:738
#21 start_wrapper (data=0x94d2c10) at threads.c:779
#22 0x0829aa1a in inner_start_thread (arg=0xbfd7fa68) at mono-threads-posix.c:92
#23 0x40084d4c in start_thread (arg=0x42fa1b40) at pthread_create.c:308
#24 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 23 (Thread 0x42fc2b40 (LWP 12019)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4017a710 in __GI___poll (fds=fds@entry=0x4300c5f0, nfds=nfds@entry=11, timeout=timeout@entry=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#2  0x0829345b in mono_poll (ufds=0x4300c5f0, nfds=11, timeout=timeout@entry=-1) at mono-poll.c:26
#3  0x081e81fa in poll_event_wait (callback=0x81e8da0 <wait_callback>, user_data=0x9e1e248) at threadpool-ms-io-poll.c:152
#4  0x081e93a6 in selector_thread (data=<optimized out>) at threadpool-ms-io.c:424
#5  selector_thread (data=data@entry=0x0) at threadpool-ms-io.c:310
#6  0x081e162b in start_wrapper_internal (data=0x43011568) at threads.c:732
#7  start_wrapper (data=0x43011568) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x42fa0c58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x42fc2b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 22 (Thread 0x43422b40 (LWP 12026)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008b5a2 in __lll_lock_wait () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:142
#2  0x40086ead in _L_lock_686 () from /lib/i386-linux-gnu/libpthread.so.0
#3  0x40086cf3 in __pthread_mutex_lock (mutex=mutex@entry=0x83b46c4) at pthread_mutex_lock.c:61
#4  0x0811d682 in mono_os_mutex_lock (mutex=0x83b46c4) at ../../mono/utils/mono-os-mutex.h:72
#5  mono_coop_mutex_lock (mutex=0x83b46c4) at ../../mono/utils/mono-coop-mutex.h:55
#6  suspend_current () at debugger-agent.c:2910
#7  suspend_current () at debugger-agent.c:2892
#8  0x081261cc in process_suspend (ctx=0x9f4747c, tls=<optimized out>) at debugger-agent.c:2739
#9  process_single_step_inner (tls=tls@entry=0x9f47300, from_signal=from_signal@entry=0) at debugger-agent.c:4856
#10 0x0812a44a in debugger_agent_single_step_from_context (ctx=0x43421e78) at debugger-agent.c:4984
#11 0x400260c3 in ?? ()
#12 0x433196c1 in ?? ()
#13 0x43319370 in ?? ()
#14 0x42e77020 in ?? ()
#15 0x42e76ae6 in ?? ()
#16 0x42e76734 in ?? ()
#17 0x42e76644 in ?? ()
#18 0x42e76498 in ?? ()
#19 0x42c4c1b1 in ?? ()
#20 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x40a67180, params=0x434222bc, exc=<optimized out>, error=0x4342221c) at mini-runtime.c:2693
#21 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x40a67180, obj@entry=0x4342221c, params=params@entry=0x434222bc, exc=0x0, error=0x4342221c) at object.c:2899
#22 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x4342221c, obj@entry=0x40a67180, params=params@entry=0x434222bc, error=error@entry=0x4342221c) at object.c:3059
#23 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x40a67180, params=params@entry=0x434222bc, exc=exc@entry=0x0) at object.c:3867
#24 0x081e16a0 in start_wrapper_internal (data=0x41d48440) at threads.c:738
#25 start_wrapper (data=0x41d48440) at threads.c:779
#26 0x0829aa1a in inner_start_thread (arg=0x431ff5a8) at mono-threads-posix.c:92
#27 0x40084d4c in start_thread (arg=0x43422b40) at pthread_create.c:308
#28 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 21 (Thread 0x45f10b40 (LWP 12033)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x400c8262 in do_sigsuspend (set=0x83be440) at ../sysdeps/unix/sysv/linux/sigsuspend.c:63
#2  __GI___sigsuspend (set=set@entry=0x83be440) at ../sysdeps/unix/sysv/linux/sigsuspend.c:78
#3  0x0829b03f in suspend_signal_handler (_dummy=35, info=0x45f0f28c, context=0x45f0f30c) at mono-threads-posix-signals.c:206
#4  <signal handler called>
#5  __strcmp_ssse3 () at ../sysdeps/i386/i686/multiarch/strcmp-ssse3.S:233
#6  0x082a05c7 in monoeg_g_str_equal (v1=0x417045fc, v2=0x82ae6ee) at ghashtable.c:658
#7  0x0829f963 in monoeg_g_hash_table_lookup_extended (hash=0x8e83380, key=0x82ae6ee, orig_key=0x45f0f678, value=0x45f0f67c) at ghashtable.c:331
#8  0x0829f8a6 in monoeg_g_hash_table_lookup (hash=0x8e83380, key=key@entry=0x82ae6ee) at ghashtable.c:311
#9  0x0816ea84 in mono_class_from_name_checked_aux (image=image@entry=0x8e82578, name_space=name_space@entry=0x82ae6ee "System", name=name@entry=0x82b0d7f "Environment", visited_images=visited_images@entry=0x4d598460, error=error@entry=0x45f0fb3c) at class.c:7829
#10 0x0816ed2d in mono_class_from_name_checked (image=image@entry=0x8e82578, name_space=name_space@entry=0x82ae6ee "System", name=name@entry=0x82b0d7f "Environment", error=error@entry=0x45f0fb3c) at class.c:7920
#11 0x0816f324 in mono_class_load_from_name (image=0x8e82578, name_space=name_space@entry=0x82ae6ee "System", name=name@entry=0x82b0d7f "Environment") at class.c:7968
#12 0x081fbca2 in mono_get_corlib_version () at appdomain.c:315
#13 mono_check_corlib_version () at appdomain.c:338
#14 0x081e3430 in mono_thread_create_internal (domain=0x8e7cdd8, func=func@entry=0x81e6500, arg=arg@entry=0x0, threadpool_thread=threadpool_thread@entry=1, stack_size=stack_size@entry=131072) at threads.c:940
#15 0x081e7c57 in monitor_ensure_running () at threadpool-ms.c:978
#16 worker_request (domain=<optimized out>) at threadpool-ms.c:796
#17 worker_request (domain=<optimized out>) at threadpool-ms.c:1599
#18 ves_icall_System_Threading_ThreadPool_RequestWorkerThread () at threadpool-ms.c:1601
#19 0x42e7a024 in ?? ()
#20 0x42e79f44 in ?? ()
#21 0x42e79b08 in ?? ()
#22 0x42e7ea6c in ?? ()
#23 0x42e7e8e4 in ?? ()
#24 0x45e0be08 in ?? ()
#25 0x42e77020 in ?? ()
#26 0x42e76ae6 in ?? ()
#27 0x42e76734 in ?? ()
#28 0x42e76644 in ?? ()
#29 0x42e76498 in ?? ()
#30 0x42c4c1b1 in ?? ()
#31 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x408289d8, params=0x45f102bc, exc=<optimized out>, error=0x45f1021c) at mini-runtime.c:2693
#32 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x408289d8, obj@entry=0x45f1021c, params=params@entry=0x45f102bc, exc=0x0, error=0x45f1021c) at object.c:2899
#33 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x45f1021c, obj@entry=0x408289d8, params=params@entry=0x45f102bc, error=error@entry=0x45f1021c) at object.c:3059
#34 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x408289d8, params=params@entry=0x45f102bc, exc=exc@entry=0x0) at object.c:3867
#35 0x081e16a0 in start_wrapper_internal (data=0x4304c8e0) at threads.c:738
#36 start_wrapper (data=0x4304c8e0) at threads.c:779
#37 0x0829aa1a in inner_start_thread (arg=0x44dfed78) at mono-threads-posix.c:92
#38 0x40084d4c in start_thread (arg=0x45f10b40) at pthread_create.c:308
#39 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 20 (Thread 0x4721db40 (LWP 12044)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7a318, cond=0x8e7a330) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7a318, cond=0x8e7a330) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4b9, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4721cbfc) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4b9, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x4721ccb0, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4b9, ms=-1, exitContext=0) at threads.c:1687
#8  0x4721e540 in ?? ()
#9  0x4721e3dc in ?? ()
#10 0x4721e270 in ?? ()
#11 0x4721e178 in ?? ()
#12 0x4721e0e0 in ?? ()
#13 0x46baffe2 in ?? ()
#14 0x46bfe97b in ?? ()
#15 0x46bfdb10 in ?? ()
#16 0x46bfc2be in ?? ()
#17 0x46bfbf0c in ?? ()
#18 0x46bfbe1c in ?? ()
#19 0x46bfbc70 in ?? ()
#20 0x46b481b1 in ?? ()
#21 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x40bc5ec0, params=0x4721d2bc, exc=<optimized out>, error=0x4721d21c) at mini-runtime.c:2693
#22 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x40bc5ec0, obj@entry=0x4721d21c, params=params@entry=0x4721d2bc, exc=0x0, error=0x4721d21c) at object.c:2899
#23 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x4721d21c, obj@entry=0x40bc5ec0, params=params@entry=0x4721d2bc, error=error@entry=0x4721d21c) at object.c:3059
#24 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x40bc5ec0, params=params@entry=0x4721d2bc, exc=exc@entry=0x0) at object.c:3867
#25 0x081e16a0 in start_wrapper_internal (data=0x46e23b90) at threads.c:738
#26 start_wrapper (data=0x46e23b90) at threads.c:779
#27 0x0829aa1a in inner_start_thread (arg=0x44dfd8a8) at mono-threads-posix.c:92
#28 0x40084d4c in start_thread (arg=0x4721db40) at pthread_create.c:308
#29 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 19 (Thread 0x44e00b40 (LWP 12088)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7c49c, cond=0x8e7c4b4) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7c49c, cond=0x8e7c4b4) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4fa, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x44dff75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4fa, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x44dff810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4fa, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x44e0021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x5f55>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x44e00208, error=0x44e0021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x5f55>, obj=0x44e0021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x44e00208, error=error@entry=0x44e0021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x4a99d318) at threads.c:732
#35 start_wrapper (data=0x4a99d318) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x431ffd58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x44e00b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 18 (Thread 0x43200b40 (LWP 12100)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7a630, cond=0x8e7a648) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7a630, cond=0x8e7a648) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4bf, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x431ff75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4bf, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x431ff810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4bf, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x4320021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x8c46a>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x43200208, error=0x4320021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x8c46a>, obj=0x4320021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x43200208, error=error@entry=0x4320021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x4631fce0) at threads.c:732
#35 start_wrapper (data=0x4631fce0) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x44dffd58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x43200b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 17 (Thread 0x43301b40 (LWP 12109)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e77b64, cond=0x8e77b7c) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e77b64, cond=0x8e77b7c) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x46c, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4330075c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x46c, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x43300810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x46c, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x4330121c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x64fd4>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x43301208, error=0x4330121c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x64fd4>, obj=0x4330121c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x43301208, error=error@entry=0x4330121c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x46df3038) at threads.c:732
#35 start_wrapper (data=0x46df3038) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x44dffd58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x43301b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 16 (Thread 0x47b1ab40 (LWP 12110)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x4a6e0848) at threads.c:732
#7  start_wrapper (data=0x4a6e0848) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x431ffd58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x47b1ab40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 15 (Thread 0x49e00b40 (LWP 12121)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e748dc, cond=0x8e748f4) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e748dc, cond=0x8e748f4) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x40a, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x49dff75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x40a, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x49dff810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x40a, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x49e0021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x91221>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x49e00208, error=0x49e0021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x91221>, obj=0x49e0021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x49e00208, error=error@entry=0x49e0021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x4a9e6bd0) at threads.c:732
#35 start_wrapper (data=0x4a9e6bd0) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x4ae2ad58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x49e00b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 14 (Thread 0x46780b40 (LWP 12122)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x44fd0988) at threads.c:732
#7  start_wrapper (data=0x44fd0988) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x432ffde8) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x46780b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 13 (Thread 0x4b510b40 (LWP 12127)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7bb54, cond=0x8e7bb6c) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7bb54, cond=0x8e7bb6c) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4e8, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4b50fbfc) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4e8, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x4b50fcb0, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4e8, ms=-1, exitContext=0) at threads.c:1687
#8  0x4b513488 in ?? ()
#9  0x4b513324 in ?? ()
#10 0x4b5131b8 in ?? ()
#11 0x4b5130c0 in ?? ()
#12 0x4b513028 in ?? ()
#13 0x4b512f2a in ?? ()
#14 0x4b40f983 in ?? ()
#15 0x4b40eb18 in ?? ()
#16 0x4b40db26 in ?? ()
#17 0x4b40d774 in ?? ()
#18 0x4b40d684 in ?? ()
#19 0x4b40d4d8 in ?? ()
#20 0x4ae741b1 in ?? ()
#21 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x40b3f500, params=0x4b5102bc, exc=<optimized out>, error=0x4b51021c) at mini-runtime.c:2693
#22 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x40b3f500, obj@entry=0x4b51021c, params=params@entry=0x4b5102bc, exc=0x0, error=0x4b51021c) at object.c:2899
#23 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x4b51021c, obj@entry=0x40b3f500, params=params@entry=0x4b5102bc, error=error@entry=0x4b51021c) at object.c:3059
#24 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x40b3f500, params=params@entry=0x4b5102bc, exc=exc@entry=0x0) at object.c:3867
#25 0x081e16a0 in start_wrapper_internal (data=0x4b348bc0) at threads.c:738
#26 start_wrapper (data=0x4b348bc0) at threads.c:779
#27 0x0829aa1a in inner_start_thread (arg=0x49f6e8a8) at mono-threads-posix.c:92
#28 0x40084d4c in start_thread (arg=0x4b510b40) at pthread_create.c:308
#29 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 12 (Thread 0x4ae2bb40 (LWP 12159)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e77ae0, cond=0x8e77af8) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e77ae0, cond=0x8e77af8) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x46b, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4ae2a75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x46b, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x4ae2a810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x46b, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x4ae2b21c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0xccc21>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x4ae2b208, error=0x4ae2b21c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0xccc21>, obj=0x4ae2b21c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x4ae2b208, error=error@entry=0x4ae2b21c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x4a9fb808) at threads.c:732
#35 start_wrapper (data=0x4a9fb808) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x431ffd58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x4ae2bb40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 11 (Thread 0x45100b40 (LWP 12164)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e78428, cond=0x8e78440) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e78428, cond=0x8e78440) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x47d, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x450ff75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x47d, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x450ff810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x47d, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x4510021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0xbb216>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x45100208, error=0x4510021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0xbb216>, obj=0x4510021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x45100208, error=error@entry=0x4510021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x41d64028) at threads.c:732
#35 start_wrapper (data=0x41d64028) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x4ae2ad58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x45100b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 10 (Thread 0x49f71b40 (LWP 12174)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x469a4af0) at threads.c:732
#7  start_wrapper (data=0x469a4af0) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x47b19d58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x49f71b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 9 (Thread 0x4d280b40 (LWP 12177)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7a7bc, cond=0x8e7a7d4) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7a7bc, cond=0x8e7a7d4) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4c2, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4d27f75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4c2, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x4d27f810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4c2, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x4d28021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x6ca45>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x4d280208, error=0x4d28021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x6ca45>, obj=0x4d28021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x4d280208, error=error@entry=0x4d28021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x4a999858) at threads.c:732
#35 start_wrapper (data=0x4a999858) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x4ae2ad58) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x4d280b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 8 (Thread 0x4d700b40 (LWP 12185)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e7c6ac, cond=0x8e7c6c4) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e7c6ac, cond=0x8e7c6c4) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x4fe, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x4d6ffbfc) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x4fe, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x4d6ffcb0, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x4fe, ms=-1, exitContext=0) at threads.c:1687
#8  0x4d2d0f20 in ?? ()
#9  0x4d48fe1c in ?? ()
#10 0x4d48fcb0 in ?? ()
#11 0x4d48fbb8 in ?? ()
#12 0x4d48fb20 in ?? ()
#13 0x4d48fa22 in ?? ()
#14 0x4d48e4bb in ?? ()
#15 0x4d48d650 in ?? ()
#16 0x4d48c65e in ?? ()
#17 0x4d48c2ac in ?? ()
#18 0x4d48c1bc in ?? ()
#19 0x4d48c010 in ?? ()
#20 0x4cde01b1 in ?? ()
#21 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", obj=0x4091ce00, params=0x4d7002bc, exc=<optimized out>, error=0x4d70021c) at mini-runtime.c:2693
#22 0x08205b66 in do_runtime_invoke (method="System.Threading.ThreadStart:Invoke ()", method@entry=0x0, obj=0x4091ce00, obj@entry=0x4d70021c, params=params@entry=0x4d7002bc, exc=0x0, error=0x4d70021c) at object.c:2899
#23 0x08209c66 in mono_runtime_invoke_checked (method=0x0, obj=0x4d70021c, obj@entry=0x4091ce00, params=params@entry=0x4d7002bc, error=error@entry=0x4d70021c) at object.c:3059
#24 0x0820a3e8 in mono_runtime_delegate_invoke (delegate=delegate@entry=0x4091ce00, params=params@entry=0x4d7002bc, exc=exc@entry=0x0) at object.c:3867
#25 0x081e16a0 in start_wrapper_internal (data=0x4d501398) at threads.c:738
#26 start_wrapper (data=0x4d501398) at threads.c:779
#27 0x0829aa1a in inner_start_thread (arg=0x49dfd8a8) at mono-threads-posix.c:92
#28 0x40084d4c in start_thread (arg=0x4d700b40) at pthread_create.c:308
#29 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 7 (Thread 0x50e10b40 (LWP 12191)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e758d8, cond=0x8e758f0) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e758d8, cond=0x8e758f0) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=handle@entry=0x429, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0x50e0f75c) at handles.c:1555
#5  0x08285518 in wapi_WaitForSingleObjectEx (handle=0x429, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:179
#6  0x081e13ba in mono_wait_uninterrupted (multiple=multiple@entry=0, numhandles=numhandles@entry=1, handles=handles@entry=0x50e0f810, waitall=waitall@entry=0, ms=ms@entry=-1, thread=<error reading variable: Unhandled dwarf expression opcode 0xfa>, alertable=1) at threads.c:1561
#7  0x081e287b in ves_icall_System_Threading_WaitHandle_WaitOne_internal (handle=0x429, ms=-1, exitContext=0) at threads.c:1687
#8  0x44bf5e78 in ?? ()
#9  0x44bf5d14 in ?? ()
#10 0x44bf5ba8 in ?? ()
#11 0x44bf5ab0 in ?? ()
#12 0x44bf5a18 in ?? ()
#13 0x44bf73fc in ?? ()
#14 0x459e7a6f in ?? ()
#15 0x43303b47 in ?? ()
#16 0x43303678 in ?? ()
#17 0x43302cf8 in ?? ()
#18 0x433020e0 in ?? ()
#19 0x42ff2f84 in ?? ()
#20 0x42fecae4 in ?? ()
#21 0x42fec230 in ?? ()
#22 0x42fe9bf4 in ?? ()
#23 0x42fe9318 in ?? ()
#24 0x42e76ae6 in ?? ()
#25 0x42e76734 in ?? ()
#26 0x42e7f0f8 in ?? ()
#27 0x42e7a470 in ?? ()
#28 0x42e7a0e0 in ?? ()
#29 0x42d3fc1f in ?? ()
#30 0x08068e77 in mono_jit_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", obj=0x0, params=0x0, exc=<optimized out>, error=0x50e1021c) at mini-runtime.c:2693
#31 0x08205b66 in do_runtime_invoke (method="System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()", method@entry=<error reading variable: Cannot access memory at address 0x74551>, obj=obj@entry=0x0, params=params@entry=0x0, exc=0x50e10208, error=0x50e1021c) at object.c:2899
#32 0x08209430 in mono_runtime_try_invoke (method=<error reading variable: Cannot access memory at address 0x74551>, obj=0x50e1021c, obj@entry=0x0, params=params@entry=0x0, exc=exc@entry=0x50e10208, error=error@entry=0x50e1021c) at object.c:3012
#33 0x081e5ead in worker_thread (data=data@entry=0x0) at threadpool-ms.c:656
#34 0x081e162b in start_wrapper_internal (data=0x469ee640) at threads.c:732
#35 start_wrapper (data=0x469ee640) at threads.c:779
#36 0x0829aa1a in inner_start_thread (arg=0x42fe3068) at mono-threads-posix.c:92
#37 0x40084d4c in start_thread (arg=0x50e10b40) at pthread_create.c:308
#38 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 6 (Thread 0x50fb4b40 (LWP 14613)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x50c6bec0) at threads.c:732
#7  start_wrapper (data=0x50c6bec0) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x49f70d58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x50fb4b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 5 (Thread 0x510b5b40 (LWP 14622)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x47f42fe8) at threads.c:732
#7  start_wrapper (data=0x47f42fe8) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x4677fd58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x510b5b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 4 (Thread 0x51238b40 (LWP 21381)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x4d598d40) at threads.c:732
#7  start_wrapper (data=0x4d598d40) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x45f0faa8) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x51238b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0x51339b40 (LWP 21382)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x40088d13 in pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_timedwait.S:236
#2  0x081e607c in mono_os_cond_timedwait (timeout_ms=<optimized out>, mutex=0x9f46f34, cond=0x9f46f04) at ../../mono/utils/mono-os-mutex.h:136
#3  mono_coop_cond_timedwait (timeout_ms=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at ../../mono/utils/mono-coop-mutex.h:107
#4  worker_park () at threadpool-ms.c:532
#5  worker_thread (data=data@entry=0x0) at threadpool-ms.c:623
#6  0x081e162b in start_wrapper_internal (data=0x50c6c290) at threads.c:732
#7  start_wrapper (data=0x50c6c290) at threads.c:779
#8  0x0829aa1a in inner_start_thread (arg=0x510b4d58) at mono-threads-posix.c:92
#9  0x40084d4c in start_thread (arg=0x51339b40) at pthread_create.c:308
#10 0x40188e8e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0x50e31b40 (LWP 23130)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008c98b in waitpid () at ../sysdeps/unix/syscall-template.S:82
#2  0x080f798d in mono_handle_native_sigsegv (signal=6, ctx=0x50e3068c, info=0x50e3060c) at mini-exceptions.c:2396
#3  <signal handler called>
#4  0x00000000 in ?? ()

Thread 1 (Thread 0x40243700 (LWP 12007)):
#0  0x400011b2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x4008896b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x0826d06d in mono_os_cond_wait (mutex=0x8e743b4, cond=0x8e743cc) at ../../mono/utils/mono-os-mutex.h:107
#3  mono_os_cond_timedwait (timeout_ms=4294967295, mutex=0x8e743b4, cond=0x8e743cc) at ../../mono/utils/mono-os-mutex.h:122
#4  _wapi_handle_timedwait_signal_handle (handle=0x400, timeout=timeout@entry=4294967295, alertable=alertable@entry=1, poll=poll@entry=0, alerted=alerted@entry=0xbfd803ac) at handles.c:1555
#5  0x0826d12d in _wapi_handle_timedwait_signal (timeout=timeout@entry=4294967295, poll=poll@entry=0, alerted=alerted@entry=0xbfd803ac) at handles.c:1476
#6  0x08286264 in wapi_WaitForMultipleObjectsEx (numobjects=numobjects@entry=2, handles=handles@entry=0xbfd8050c, waitall=waitall@entry=0, timeout=timeout@entry=4294967295, alertable=alertable@entry=1) at wait.c:609
#7  0x081e38e3 in wait_for_tids_or_state_change (wait=0xbfd8050c, timeout=<optimized out>) at threads.c:2938
#8  mono_thread_manage () at threads.c:3144
#9  0x080c840f in mono_main (argc=10, argv=0xbfd808e4) at driver.c:2135
#10 0x08064869 in mono_main_with_options (argv=0xbfd808e4, argc=10) at main.c:20
#11 main (argc=10, argv=0xbfd808e4) at main.c:53

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries 
used by your application.
=================================================================
Comment 1 Rodrigo Kumpera 2016-09-14 23:01:39 UTC
Hey Sergey,

Unfortunately we can't do much with this crash report. Thread 2, which has the native crash is missing a backtrace.

Do you have a reliable way of reproducing it that you could share with us?
Comment 2 Sergey Zhukov 2016-09-16 08:38:36 UTC
I upgraded my hardware (Corei5 instead of Core2 Duo, SSD instead of HDD and more memory) and now I get these crashes not so often as before. Most times I get them by running debug session for large ASP.NET project in monodevelop and XSP crashes with the message "suspend_thread suspend took 200 ms, which is more than the allowed 200 ms".
  I don't know how to make it reproducible 100% of time, I just can provide more logs when next crash happens. What I get is that low amount of free memory and disk IO at XSP start increases probability of this crash.
Comment 3 Rodrigo Kumpera 2016-09-16 18:52:38 UTC
Hey Aleksey,

How would we help here figuring out the issue?
Comment 4 Rodrigo Kumpera 2017-10-11 17:37:25 UTC
We have not received the requested information. If you are still experiencing this issue please provide all the requested information and reopen the bug report.

Thank you!

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