Bug 8767 - Crashes and deadlocks showing the migration pane
Summary: Crashes and deadlocks showing the migration pane
Status: RESOLVED FIXED
Alias: None
Product: Xamarin Studio
Classification: Desktop
Component: Mac Add-in ()
Version: 4.0.8
Hardware: PC Mac OS
: --- normal
Target Milestone: ---
Assignee: Aaron Bockover [MSFT]
URL:
Depends on:
Blocks:
 
Reported: 2012-12-05 06:49 UTC by Alan McGovern
Modified: 2013-06-11 05:32 UTC (History)
2 users (show)

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

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Status:
RESOLVED FIXED

Description Alan McGovern 2012-12-05 06:49:14 UTC
I disabled the monomac -> xammac migration dialog as it is frequently deadlocking my system and has been involved in one inexplicable crash. The commit in question just added a 'return Migration.Ignore'. See commit 4ea232747964cc86580ad2d5d51290a200fb6bb6 in md-addins. I put this on master as well as ui-refresh. We need to back this out ASAP but this was the fastest way to get a MD that doesn't deadlock.

The deadlock looks like this: https://gist.github.com/d65ee8c8ea52f247d64e and MD sometimes consumes 100% of the CPU when this happens and sometimes consumes 0%.
Comment 1 Alan McGovern 2012-12-05 06:49:55 UTC
Clicky linky to the commit: https://github.com/xamarin/md-addins/commit/4ea232747964cc86580ad2d5d51290a200fb6bb6
Comment 2 Alan McGovern 2012-12-05 17:51:53 UTC
I think part of this bug is triggered by clicking on the MD dock icon while the migration prompt window is open:

http://screencast.com/t/uk8egPklo
Comment 3 Aaron Bockover [MSFT] 2012-12-06 16:03:37 UTC
This bug should be repurposed and reassigned. Not sure who should get it. As discussed, this is likely a crappy GTK bug. I've gone back to using a modal dialog instead of a modal sheet for now, which appears to avoid the issue.

TL;DR not my fault

https://github.com/xamarin/md-addins/commit/d8ad5d93a4d38829618159765b6f7824c1517539
Comment 4 Lluis Sanchez 2013-06-11 05:32:21 UTC
Closing since a workaround was committed.