https://issues.apache.org/bugzilla/show_bug.cgi?id=55448
Bug ID: 55448
Summary: segfault in set_max_workers at event.c:3194 on SIGUSR1
Product: Apache httpd-2
Version: 2.4.6
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mpm_event
Assignee: [email protected]
Reporter: [email protected]
When logrotate did its work this week-end, it ran /etc/init.d/apache2 reload.
In the log files:
[Sun Aug 18 06:25:51.267032 2013] [mpm_event:notice] [pid 7618:tid
140663945377600] AH00493: SIGUSR1 received. Doing graceful restart
[Sun Aug 18 06:25:51.501217 2013] [ssl:warn] [pid 7618:tid 140663945377600]
AH02292: Init: Name-based SSL virtual hosts only work for clients with TLS
server name indication support (RFC 4366)
[Sun Aug 18 06:25:51.501469 2013] [mpm_event:notice] [pid 7618:tid
140663945377600] AH00489: Apache/2.4.6 (Debian) SVN/1.7.9 OpenSSL/1.0.1e
mod_wsgi/3.4 Python/2.7.3 configured -- resuming normal operations
[Sun Aug 18 06:25:51.501500 2013] [core:notice] [pid 7618:tid 140663945377600]
AH00094: Command line: '/usr/sbin/apache
at this time, a core file was generated with this backtrace:
(gdb) core core-apache2.9927
[New LWP 9927]
warning: Can't read pathname for load map: Input/output error.
warning:
"/usr/lib/debug/.build-id/d1/7ee702718ddcd69e0be5db24b49a2bd4ab720e.debug":
separate debug info file has no debug info
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
warning:
"/usr/lib/debug/.build-id/2d/7fb1beefaa5a7ca4e13df623b1c8ea41ac16ff.debug":
separate debug info file has no debug info
warning: no loadable sections found in added symbol-file system-supplied DSO at
0x7ffff9312000
Core was generated by `/usr/sbin/apache2 -k start'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007feed931b970 in set_max_workers (cmd=0x3, dummy=<optimized out>,
arg=0x7feee06b1358 "") at event.c:3194
3194 event.c: No such file or directory.
(gdb) thread apply all bt
Thread 1 (Thread 0x7feee07f3740 (LWP 9927)):
#0 0x00007feed931b970 in set_max_workers (cmd=0x3, dummy=<optimized out>,
arg=0x7feee06b1358 "") at event.c:3194
#1 0x0000000000000000 in ?? ()
I'm running Apache httpd 2.4.6 on Debian GNU/Linux Wheezy AMD64.
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