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Created attachment 18990 [details]
Source code that triggers the bug
I've got a Blake2 hash implementation where the compression method is unrolled. That method spans about 1300 lines.
Running this on a freshly-installed Debian 8 with Mono 220.127.116.11 crashes, presumably when Mono tries to JIT the compression method. A class that compiles with mcs and triggers that bug is attached.
This issue was already reported as https://bugzilla.xamarin.com/show_bug.cgi?id=22150 but wrongly categorized and then abandoned.
upserver@debian:~$ mono Blake2.exe
* Assertion at method-to-ir.c:14949, condition `lvregs_len < 1024' not met
at <unknown> <0xffffffff>
at domi1819.UpCore.Crypto.Blake2.Hash (byte,byte,byte) <0x0029b>
at domi1819.UpCore.Crypto.Blake2.Main () <0x0002b>
at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) <0x000ba>
Debug info from gdb:
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.
Fixed by mono master bf1862930b890472e6f93df4ad7e08f1d7620191.