https://issues.apache.org/bugzilla/show_bug.cgi?id=54905
Bug ID: 54905
Summary: Apache2 loops in child Segfaults
Product: Apache httpd-2
Version: 2.4.4
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P2
Component: Core
Assignee: [email protected]
Reporter: [email protected]
Classification: Unclassified
After a random time (sometimes on startup, sometimes later) Apache 2.4.4 gets
into a segfault loop (child processes are faulting and dying, while parent
attempts to recreate child that are faulting again).
I've tried it on various machines - with no success.
I have tried disabling all irrelevant modules (I'm not using php, and anyway it
happens when not serving any requests!)
Attached is the stack-trace from gdb, from all threads.
(gdb) thread apply all bt
Thread 28 (LWP 4568):
#0 0x00007f3cc2bc8707 in kill () from /lib/x86_64-linux-gnu/libc.so.6
#1 <signal handler called>
#2 0x00007f3cc38168d2 in ?? () from /lib64/ld-linux-x86-64.so.2
#3 0x00007f3cc3806be4 in ?? () from /lib64/ld-linux-x86-64.so.2
#4 0x00007f3cc381184b in ?? () from /lib64/ld-linux-x86-64.so.2
#5 0x00007f3cc380d176 in ?? () from /lib64/ld-linux-x86-64.so.2
#6 0x00007f3cc381131a in ?? () from /lib64/ld-linux-x86-64.so.2
#7 0x00007f3cc2cc2612 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#8 0x00007f3cc380d176 in ?? () from /lib64/ld-linux-x86-64.so.2
#9 0x00007f3cc2cc26d4 in __libc_dlopen_mode () from
/lib/x86_64-linux-gnu/libc.so.6
#10 0x00007f3cc2f613bc in pthread_cancel_init () from
/lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f3cc2f6157c in _Unwind_ForcedUnwind () from
/lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f3cc2f5f6a0 in __pthread_unwind () from
/lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f3cc2f59ff5 in pthread_exit () from
/lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f3cc31933b6 in apr_thread_exit (thd=<optimized out>,
retval=<optimized out>) at threadproc/unix/thread.c:207
#15 0x0000000000465f27 in start_threads (thd=0xa26b48, dummy=0xa26ac8) at
event.c:2001
#16 0x00007f3cc2f58e9a in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#17 0x00007f3cc2c85ccd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#18 0x0000000000000000 in ?? ()
Thread 27 (Thread 0x7f3cadfeb700 (LWP 4594)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cadfeb700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 26 (Thread 0x7f3cae7ec700 (LWP 4593)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cae7ec700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 25 (Thread 0x7f3caefed700 (LWP 4592)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3caefed700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 24 (Thread 0x7f3caf7ee700 (LWP 4591)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3caf7ee700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 23 (LWP 4590):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3caffef700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 22 (LWP 4589):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cbe80e700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 21 (Thread 0x7f3cb0ff1700 (LWP 4588)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb07f0700 in ?? ()
---Type <return> to continue, or q <return> to quit---
#3 0x0000000000000000 in ?? ()
Thread 20 (LWP 4587):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb0ff1700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 19 (LWP 4586):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb3ff7700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 18 (LWP 4585):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb1ff3700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 17 (LWP 4584):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb2ff5700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 16 (Thread 0x7f3cbe80e700 (LWP 4569)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb37f6700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 15 (LWP 4583):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb17f2700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 14 (LWP 4582):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb47f8700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 13 (LWP 4581):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb27f4700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 12 (Thread 0x7f3cbe00d700 (LWP 4570)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb4ff9700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 11 (LWP 4580):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb57fa700 in ?? ()
#3 0x0000000000000000 in ?? ()
---Type <return> to continue, or q <return> to quit---
Thread 10 (LWP 4579):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb5ffb700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 9 (LWP 4578):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb5ffb700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 8 (Thread 0x7f3cbd80c700 (LWP 4571)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cbd80c700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 7 (LWP 4577):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb67fc700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 6 (Thread 0x7f3cbd00b700 (LWP 4572)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb7fff700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 5 (LWP 4576):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cbc80a700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 4 (LWP 4575):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cbd00b700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 3 (Thread 0x7f3cb7fff700 (LWP 4574)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb6ffd700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 2 (Thread 0x7f3cbc80a700 (LWP 4573)):
#0 0x00007f3cc2c85c91 in clone () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f3cc2f58dc0 in ?? () from /lib/x86_64-linux-gnu/libpthread.so.0
#2 0x00007f3cb77fe700 in ?? ()
#3 0x0000000000000000 in ?? ()
Thread 1 (Thread 0x7f3cc3a12700 (LWP 4544)):
#0 0x00007f3cc2f5fd2d in read () from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x0000000000467764 in read (__nbytes=1, __buf=0x7fff7ad826ef,
__fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:45
#2 ap_event_pod_check (pod=<optimized out>) at pod.c:58
#3 0x0000000000427f1f in child_main (child_num_arg=4) at event.c:2185
#4 0x0000000000465b37 in make_child (s=0x951508, slot=4) at event.c:2272
#5 0x00000000004667d2 in perform_idle_server_maintenance () at event.c:2469
#6 server_main_loop (remaining_children_to_start=0) at event.c:2597
---Type <return> to continue, or q <return> to quit---
#7 event_run (_pconf=<optimized out>, plog=<optimized out>, s=<optimized out>)
at event.c:2656
#8 0x000000000042ee96 in ap_run_mpm (pconf=0x928138, plog=0x955378,
s=0x951508) at mpm_common.c:98
#9 0x00000000004289b3 in main (argc=3, argv=0x7fff7ad82ac8) at main.c:777
--
You are receiving this mail because:
You are the assignee for the bug.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
