https://issues.apache.org/bugzilla/show_bug.cgi?id=48341
Summary: Frequent crashes with high load
Product: Apache httpd-2
Version: 2.3-HEAD
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: mod_fcgid
AssignedTo: [email protected]
ReportedBy: [email protected]
Every few hours mod_fcgid suddenly tries spawning tons and tons of processes
and our web server (no - the entire box) becomes unresponsive. This seems to
have been happening for around a year.
After one of these spasms it starts crashing Apache. For example:
(gdb) bt
#0 0x00007f5745f91da8 in bucket_ctx_cleanup (thectx=<value optimized out>) at
fcgid_bridge.c:174
#1 0x00007f574a55d62d in run_cleanups (cref=0x12f7318) at
memory/unix/apr_pools.c:2306
#2 0x00007f574a55e0b7 in apr_pool_destroy (pool=0x12f72f8) at
memory/unix/apr_pools.c:774
#3 0x00007f574a55e265 in apr_pool_clear (pool=0x12ef2b8) at
memory/unix/apr_pools.c:728
#4 0x0000000000446dd4 in worker_thread (thd=0xfb88a8, dummy=<value optimized
out>) at worker.c:897
#5 0x00007f5749ef0fc7 in start_thread () from /lib/libpthread.so.0
#6 0x00007f5749a625ad in clone () from /lib/libc.so.6
#7 0x0000000000000000 in ?? ()
(gdb) p *ctx
$1 = {ipc = {connect_timeout = 3, communation_timeout = 60, ipc_handle_info =
0x0, request = 0x12f7378}, buffer = 0x0, procnode = 0x0, active_time = 0,
has_error = 0}
(gdb) f 0
#0 0x00007f5745f91da8 in bucket_ctx_cleanup (thectx=<value optimized out>) at
fcgid_bridge.c:174
174 ++ctx->procnode->requests_handled;
(gdb) p ctx.procnode
$2 = (fcgid_procnode *) 0x0
If there's anything I can do to help diagnose this please let me know. I'm
going through old versions of mod_fcgid to find a regression range.
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