httpd 2.4 crash invalidating cache

Solution In Progress - Updated -

Issue

  • Apache crashing with below error
[00:53:31.434290 2015] [core:notice] [pid 29881:tid 139639086540608] AH00052: child pid 2925 exit signal Segmentation fault (11)
[01:03:06.097822 2015] [core:notice] [pid 29881:tid 139639086540608] AH00052: child pid 7121 exit signal Segmentation fault (11)
[01:19:10.210110 2015] [core:notice] [pid 29881:tid 139639086540608] AH00052: child pid 7319 exit signal Segmentation fault (11)
[crit] Memory allocation failed, aborting process.
[01:29:18.952704 2015] [core:notice] [pid 29881:tid 139639086540608] AH00052: child pid 7623 exit signal Aborted (6)
[crit] Memory allocation failed, aborting process.
  • The following backtrace on the core:
#0  run_cleanups (cref=0x70) at memory/unix/apr_pools.c:2348
#1  apr_pool_destroy (pool=0x0) at memory/unix/apr_pools.c:804
#2  0x00007f6870ce04e6 in commit_entity (h=<optimized out>, r=0x7f67f8000960) at mod_cache_socache.c:1155
#3  0x00007f68710fa9e8 in cache_invalidate (cache=cache@entry=0x7f67f8002720, r=r@entry=0x7f67f8000960) at cache_storage.c:748
#4  0x00007f68710f5a5e in cache_invalidate_filter (f=0x7f67f8002818, in=0x7f676c0066e8) at mod_cache.c:1669
#5  0x00007f6875cdad1d in ap_http_header_filter (f=<optimized out>, b=0x7f676c005918) at http_filters.c:1354
#6  0x00007f6875cae58c in ap_content_length_filter (f=0x7f67f8002078, b=0x7f676c005918) at protocol.c:1404
#7  0x00007f6875cdc71f in ap_byterange_filter (f=0x7f67f8002050, bb=0x7f676c005918) at byterange_filter.c:496
#8  0x00007f686982231c in ap_proxy_http_process_response (p=p@entry=0x7f67f80008e8, r=r@entry=0x7f67f8000960, backend_ptr=backend_ptr@entry=0x7f68567eb998,
    server_portstr=server_portstr@entry=0x7f68567eba40 "", conf=0x7f6877eba508, conf=0x7f6877eba508, worker=<optimized out>) at mod_proxy_http.c:1790
#9  0x00007f6869824789 in proxy_http_handler (r=<optimized out>, worker=<optimized out>, conf=0x7f6877eba508, url=0x7f67f8a27da0 "http://1.2.3.4:8080/images/myimage.gif", proxyname=0x0,
    proxyport=0) at mod_proxy_http.c:2021
#10 0x00007f686b074d54 in proxy_run_scheme_handler (r=r@entry=0x7f67f8000960, worker=0x7f6877eaebc0, conf=conf@entry=0x7f6877eba508, url=0x7f67f8a27da0 "http://1.2.3.4:8080/images/myimage.gif",
    proxyhost=proxyhost@entry=0x0, proxyport=proxyport@entry=0) at mod_proxy.c:2733
#11 0x00007f686b075c3d in proxy_handler (r=0x7f67f8000960) at mod_proxy.c:1119
#12 0x00007f6875cc3240 in ap_run_handler (r=0x7f67f8000960) at config.c:169
#13 0x00007f6875cc3789 in ap_invoke_handler (r=r@entry=0x7f67f8000960) at config.c:439
#14 0x00007f6875cd7b0a in ap_process_async_request (r=r@entry=0x7f67f8000960) at http_request.c:317
#15 0x00007f6875cd7de4 in ap_process_request (r=r@entry=0x7f67f8000960) at http_request.c:363
#16 0x00007f6875cd4772 in ap_process_http_sync_connection (c=0x7f6838025c80) at http_core.c:190
#17 ap_process_http_connection (c=0x7f6838025c80) at http_core.c:231
#18 0x00007f6875ccc810 in ap_run_process_connection (c=0x7f6838025c80) at connection.c:41
#19 0x00007f686b28dbf5 in process_socket (my_thread_num=19, my_child_num=<optimized out>, cs=0x7f6838025c08, sock=<optimized out>, p=<optimized out>, thd=<optimized out>) at event.c:954
#20 worker_thread (thd=<optimized out>, dummy=<optimized out>) at event.c:1812
#21 0x00007f687474edf5 in start_thread (arg=0x7f68567ec700) at pthread_create.c:328
#22 0x00007f68742781ad in ?? () from /lib64/libc.so.6
#23 0x0000000000000000 in ?? ()
~                                  

Environment

  • Red Hat Enterprise Linux 7
  • httpd 2.4
  • MPM event module

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