Your message dated Thu, 05 Jul 2012 15:53:12 +0000
with message-id <[email protected]>
and subject line Bug#680362: Removed package(s) from unstable
has caused the Debian Bug report #412024,
regarding libmysqlclient running in multi-threaded enviroments
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
412024: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=412024
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: libmysqlclient15off
Version: 5.0.32-3
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.
diff -Nrau mysql-dfsg-5.0-5.0.32.orig/extra/yassl/taocrypt/src/integer.cpp mysql-dfsg-5.0-5.0.32/extra/yassl/taocrypt/src/integer.cpp
--- mysql-dfsg-5.0-5.0.32.orig/extra/yassl/taocrypt/src/integer.cpp 2006-12-20 08:13:59.000000000 -0300
+++ mysql-dfsg-5.0-5.0.32/extra/yassl/taocrypt/src/integer.cpp 2007-02-22 15:21:04.000000000 -0300
@@ -1050,11 +1050,21 @@
}
return true;
#else
- typedef void (*SigHandler)(int);
+ struct sigaction sigact,sigoldact;
+ memset(&sigact,0,sizeof(sigact));
+ sigact.sa_handler=SigIllHandler;
+ sigemptyset(&sigact.sa_mask);
+ if(0!=sigaction(SIGILL,&sigact,&sigoldact)) return false;
+
+ sigset_t newmask,oldmask;
+ sigemptyset(&newmask);
+ sigaddset(&newmask,SIGILL);
- SigHandler oldHandler = signal(SIGILL, SigIllHandler);
- if (oldHandler == SIG_ERR)
+ if(0!=pthread_sigmask(SIG_UNBLOCK,&newmask,&oldmask))
+ {
+ sigaction(SIGILL,&sigoldact,NULL);
return false;
+ }
bool result = true;
if (setjmp(s_env))
@@ -1062,7 +1072,11 @@
else
__asm __volatile ("xorpd %xmm0, %xmm0");
- signal(SIGILL, oldHandler);
+ if(sigismember(&oldmask,SIGILL))
+ {
+ pthread_sigmask(SIG_BLOCK,&newmask,NULL);
+ }
+ sigaction(SIGILL,&sigoldact,NULL);
return result;
#endif
}
diff -Nrau mysql-dfsg-5.0-5.0.32.orig/extra/yassl/taocrypt/src/misc.cpp mysql-dfsg-5.0-5.0.32/extra/yassl/taocrypt/src/misc.cpp
--- mysql-dfsg-5.0-5.0.32.orig/extra/yassl/taocrypt/src/misc.cpp 2006-12-20 08:14:34.000000000 -0300
+++ mysql-dfsg-5.0-5.0.32/extra/yassl/taocrypt/src/misc.cpp 2007-02-22 15:20:57.000000000 -0300
@@ -199,11 +199,22 @@
}
return true;
#else
- typedef void (*SigHandler)(int);
- SigHandler oldHandler = signal(SIGILL, SigIllHandler);
- if (oldHandler == SIG_ERR)
+ struct sigaction sigact,sigoldact;
+ memset(&sigact,0,sizeof(sigact));
+ sigact.sa_handler=SigIllHandler;
+ sigemptyset(&sigact.sa_mask);
+ if(0!=sigaction(SIGILL,&sigact,&sigoldact)) return false;
+
+ sigset_t newmask,oldmask;
+ sigemptyset(&newmask);
+ sigaddset(&newmask,SIGILL);
+
+ if(0!=pthread_sigmask(SIG_UNBLOCK,&newmask,&oldmask))
+ {
+ sigaction(SIGILL,&sigoldact,NULL);
return false;
+ }
bool result = true;
if (setjmp(s_env))
@@ -218,7 +229,11 @@
: "%eax", "%ecx", "%edx"
);
- signal(SIGILL, oldHandler);
+ if(sigismember(&oldmask,SIGILL))
+ {
+ pthread_sigmask(SIG_BLOCK,&newmask,NULL);
+ }
+ sigaction(SIGILL,&sigoldact,NULL);
return result;
#endif
}
--- End Message ---
--- Begin Message ---
Version: 5.1.62-1+rm
Dear submitter,
as the package mysql-5.1 has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see http://bugs.debian.org/680362
The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
[email protected].
Debian distribution maintenance software
pp.
Alexander Reichle-Schmehl (the ftpmaster behind the curtain)
--- End Message ---
