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IDProjectCategoryView StatusLast Update
0015286CentOS-7httpdpublic2018-09-17 14:44
Reporterpavlovdo 
PrioritynormalSeveritymajorReproducibilityalways
Status newResolutionopen 
Product Version7.5.1804 
Target VersionFixed in Version 
Summary0015286: Apache graceful restart crash
DescriptionHi team!

Apache 2.4.6 (Cent OS 7 package httpd-2.4.6-80.el7.centos.1.x86_64) is crashing during graceful restart.

In error_log:
[core:notice] [pid 31670] AH00060: seg fault or similar nasty error detected in the parent process

# gdb /sbin/httpd /var/log/httpd/core/core-httpd-11-0-0-19797-1537171675
GNU gdb (GDB) Red Hat Enterprise Linux 7.6.1-110.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/sbin/httpd...Reading symbols from /usr/lib/debug/usr/sbin/httpd.debug...done.
done.
[New LWP 19797]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/sbin/httpd -DFOREGROUND'.
Program terminated with signal 11, Segmentation fault.
#0 __GI___libc_free (mem=0x970ea725) at malloc.c:2935
2935 if (chunk_is_mmapped(p)) /* release mmapped memory. */

strace -p 23725:
...
stat("/etc/krb5.conf", {st_mode=S_IFREG|0644, st_size=590, ...}) = 0
open("/etc/krb5.conf", O_RDONLY) = 66
fcntl(66, F_SETFD, FD_CLOEXEC) = 0
fstat(66, {st_mode=S_IFREG|0644, st_size=590, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f01ae275000
read(66, "# Configuration snippets may be "..., 4096) = 590
openat(AT_FDCWD, "/etc/krb5.conf.d/", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 67
getdents(67, /* 2 entries */, 32768) = 48
getdents(67, /* 0 entries */, 32768) = 0
close(67) = 0
read(66, "", 4096) = 0
close(66) = 0
munmap(0x7f01ae275000, 4096) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0x970ea71d} ---
chdir("/var/log/httpd/core") = 0
rt_sigaction(SIGSEGV, {SIG_DFL, [], SA_RESTORER|SA_INTERRUPT, 0x7f01acd496d0}, {SIG_DFL, [], SA_RESTORER|SA_RESETHAND, 0x7f01acd496d0}, 8) = 0
write(2, "[Mon Sep 17 11:46:40.807530 2018"..., 133) = 133
kill(23725, SIGSEGV) = 0
rt_sigreturn({mask=[]}) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SI_USER, si_pid=23725, si_uid=0} ---
+++ killed by SIGSEGV (core dumped) +++
Steps To Reproducesystemctl reload httpd
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Issue History

Date Modified Username Field Change
2018-09-17 14:44 pavlovdo New Issue