Segmentation fault signal 11 caused due to SIGSEGV without signal any handler.
Issue
- GDB backtrace of the coredump gives below information
Core was generated by `/usr/sbin/httpd -DFOREGROUND'.
Program terminated with signal 11, Segmentation fault.
#0 0x00007f3302fb1630 in ?? ()
(gdb) bt
#0 0x00007f3302fb1630 in ?? ()
#1 0x00007f32f4ef4193 in ssl_hook_Access (r=0x7f3302fc28f8) at ssl_engine_kernel.c:782
#2 0x00007f330117df40 in ap_run_access_checker (r=r@entry=0x7f3302fc28f8) at request.c:87
#3 0x00007f33011809c6 in ap_process_request_internal (r=r@entry=0x7f3302fc28f8) at request.c:265
#4 0x00007f330119bac0 in ap_internal_redirect (new_uri=<optimized out>, r=<optimized out>) at http_request.c:646
#5 0x00007f330119bf54 in ap_process_async_request (r=r@entry=0x7f3302f98b20) at http_request.c:350
#6 0x00007f330119c2e4 in ap_process_request (r=r@entry=0x7f3302f98b20) at http_request.c:363
#7 0x00007f3301198c32 in ap_process_http_sync_connection (c=0x7f330280d460) at http_core.c:190
#8 ap_process_http_connection (c=0x7f330280d460) at http_core.c:231
#9 0x00007f3301190c90 in ap_run_process_connection (c=c@entry=0x7f330280d460) at connection.c:41
#10 0x00007f3301191078 in ap_process_connection (c=c@entry=0x7f330280d460, csd=<optimized out>) at connection.c:202
#11 0x00007f32f6d8480f in child_main (child_num_arg=child_num_arg@entry=36) at prefork.c:707
#12 0x00007f32f6d84a55 in make_child (s=0x7f33021e4a50, slot=slot@entry=36) at prefork.c:810
#13 0x00007f32f6d851c1 in prefork_run (_pconf=<optimized out>, plog=<optimized out>, s=<optimized out>) at prefork.c:1061
#14 0x00007f330116bf6e in ap_run_mpm (pconf=pconf@entry=0x7f330218f158, plog=0x7f33021bc378, s=0x7f33021e4a50) at mpm_common.c:96
#15 0x00007f3301164d76 in main (argc=2, argv=0x7ffc18150108) at main.c:777
- Error in Apache , Primarily an SSL Webserver with Error log as below , repeating every minute /var/log/httpd/error_log ,
[Tue Oct 24 14:55:55.684739 2017] [core:notice] [pid 29689] AH00052: child pid 64887 exit signal Segmentation fault (11)
[Tue Oct 24 14:56:16.708965 2017] [core:notice] [pid 29689] AH00052: child pid 3818 exit signal Segmentation fault (11)
Environment
- Red Hat Enterprise Linux
- 7.x
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