26582http://bugs.mysql.com/bug.php?id=26582No FeedbackServerCrash in multi-thread apps due to signal(2) in libmysqlclient/taocryptI'm forwarding a bug reported by Mariano Santamarina <msantamarina@gmail.com> on http://bugs.debian.org/412024. I've not yet tested the patch nor verified the problem. -chrstian- --------------------------------------------------- Using libmysqlclient in multi-threaded enviroments like java can result in: # # An unexpected error has been detected by HotSpot Virtual Machine: # # SIGILL (0x4) at pc=0x00000000, pid=10933, tid=2877021104 # # Java VM: Java HotSpot(TM) Client VM (Blackdown-1.4.2-03 mixed mode) # An error report file with more information is saved as hs_err_pid10933.log # # If you would like to submit a bug report, please visit: # http://www.blackdown.org/cgi-bin/jdk # After two days finding the bug. i discovered that in the taocrypt library included in libmysql are calls to signal(...). In the signal(2) Manual Page. Section NOTES says: "The effects of this call in a multi-threaded process are unspecified..." (indeed is true) My modest solution is to relace signal(...) with pthread_sigmask(...) and sigaction(...) Attached is the patch Thanks. PD: Sorry form my poor english. 16744117218768711767374775.0.32Linux (Debian GNU/Linux)AnyS3 (Non-critical)