[Mono-bugs] [Bug 81856][Nor] Changed - Dead Lock with mysql

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Mon Jul 16 07:44:56 EDT 2007

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Changed by james at stev.org.


--- shadow/81856	2007-07-05 05:15:01.000000000 -0400
+++ shadow/81856.tmp.2931	2007-07-16 07:44:56.000000000 -0400
@@ -132,6 +132,36 @@
 database the problem will occur when running in mono. I cannot get the
 bug to occur with tracing enabled on mono which would suggest to me
 its going to be hard to reproduce on a different system and is
 possibly some kind of race.
+------- Additional Comments From james at stev.org  2007-07-16 07:44 -------
+More information
+Somebody on irc asked me to append the following
+After sending a QUIT signal to mono the following is dumped.
+Full thread dump:
+"" tid=0x0xb6e99bb0 this=0x0x60d10:
+"" tid=0x0xb7cd8aa0 this=0x0x21e00:
+I am able to trigger this bug on various version of mono / mysql libs.
+Mysql Lib tested with are through All of which seem to
+cause the same deadlock.
+I have also tested this against mono 1.2.4 and various svn HEAD trees
+in the last 2/3 weeks. Last tested against revision 82024
+I am pritty sure this is not a mysql lib issue as the mono runtime
+always locks up. I have tried to use the info on
+http://www.mono-project.com/Debugging to attempt to get a stack trace
+to look into this issue further but most of the internal functions
+stop on mono_domain_lock
+I cannot trigger the deadlock with tracing enabled.
+The deadlock does not trigger on windows. Under MS .NET
+Where next ?

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