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Bug 13509 - Stack overflow in CultureInfo crashes Xamarin Studio on launch
Summary: Stack overflow in CultureInfo crashes Xamarin Studio on launch
Alias: None
Product: Class Libraries
Classification: Mono
Component: CORLIB (show other bugs)
Version: Trunk
Hardware: PC Mac OS
: Highest critical
Target Milestone: ---
Assignee: Marek Safar
: 13570 (view as bug list)
Depends on:
Reported: 2013-07-26 11:07 UTC by Mikayla Hutchinson
Modified: 2013-08-26 03:13 UTC (History)
7 users (show)

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

Crash log (237.09 KB, application/octet-stream)
2013-07-26 11:07 UTC, Mikayla Hutchinson

Description Mikayla Hutchinson 2013-07-26 11:07:32 UTC
Created attachment 4453 [details]
Crash log

A stack overflow in CultureInfo crashes Xamarin Studio on launch.
Comment 2 Marek Safar 2013-07-26 13:57:08 UTC
Fixed in master and 3-2 branch
Comment 3 Mikayla Hutchinson 2013-07-29 13:38:19 UTC
This completely breaks the runtime when MacOS Region (no Language) is set to Taiwan. In addition, it has been reported against XA (see bug 13490).

Fix is

Bug was introduced in, the issue is that CultureInfo initialization for zh_TW depends on ordinal String.EndsWith, but ordinal String.EndsWith unnecessarily depends on CultureInfo.CurrentCulture, so if the CurrentCulture is zh_TW then there is a stack overflow.

Patch looks safe to hotfix.

We should also get it into XA and XI.
Comment 4 Mikayla Hutchinson 2013-07-29 13:38:26 UTC
*** Bug 13570 has been marked as a duplicate of this bug. ***
Comment 5 Mikayla Hutchinson 2013-07-29 14:47:02 UTC
This has been backported onto the Mono 3.2.1 branch and a hotfix release will be made shortly. 

Rolf, Jon, can we get this fix into XA and XI?
Comment 6 Miguel de Icaza 2013-07-29 14:53:52 UTC
This patch is triple-rainbow safe.
Comment 7 Jonathan Pryor 2013-07-29 15:09:56 UTC
monodroid/a93d13b7 includes this fix. The fix will be in Xamarin.Android 4.8.2.
Comment 8 Mikayla Hutchinson 2013-07-29 15:20:55 UTC
It would be nice to have some unit tests so we don't break this badly again.
Comment 9 Rolf Bjarne Kvinge 2013-07-29 17:34:44 UTC
monotouch/monotouch-6.4-series: 8edb80749727b763ad4026087e679a621c937d89 has the fix.

Not sure if it'll get into 6.4.1 or 6.4.2 though.
Comment 10 Marek Safar 2013-07-30 03:54:22 UTC
Added unit test for the fix
Comment 12 narayanp 2013-08-26 03:13:38 UTC
Today we have checked this issue with following builds

Mac Maverick 10.9
Lion 10.7.4
X.S 4.1.9(build 6)
Mono 3.2.2
X.Android 4.8.2-54

After changing the region language to Chinese(Taiwan) we are successfully able to create android and iOS application in X.S.

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