Public bug reported:
squid just aborted (again) on one of the www.ubuntu.com front ends.
It's running a lightly patched version of lucid's
2.7.STABLE7-1ubuntu12. Looking at the crash and the code in
storeLocateVaryRead(), I'm pretty confident our local patch[1] isn't
the source of the problem.
Backtrace follows:
#0 0x00007f50b0a25a75 in *__GI_raise (sig=<value optimised out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007f50b0a295c0 in *__GI_abort () at abort.c:92
#2 0x00007f50b0a1e941 in *__GI___assert_fail (assertion=0x7f50b1b6ca09 "n",
file=<value optimised out>, line=616, function=0x7f50b1b88de8 "@") at
assert.c:81
#3 0x00007f50b1b5b540 in xstrndup (
s=0x7f51113fcd9c "\n<head>\n<meta http-equiv=\"Content-Type\"
content=\"text/html; charset=utf-8\" />\n <title>Homepage | Ubuntu</title>\n
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"
/>\n<meta name=\"mod"..., n=0) at util.c:616
#4 0x00007f50b1b1fa4e in storeLocateVaryRead (data=0x7f50e2b25098, buf=<value
optimised out>, size=<value optimised out>) at store.c:879
#5 0x00007f50b1b20ad3 in storeClientCallback (sc=0x7f510a06ee48, sz=4096) at
store_client.c:146
#6 0x00007f50b1b3bab2 in storeAufsReadDone (fd=<value optimised out>,
my_data=0x7f50f96b0ec8, buf=<value optimised out>, len=<value optimised out>,
errflag=0)
at aufs/store_io_aufs.c:400
#7 0x00007f50b1b3e06a in aioCheckCallbacks (SD=<value optimised out>) at
aufs/async_io.c:319
#8 0x00007f50b1b236be in storeDirCallback () at store_dir.c:511
#9 0x00007f50b1aca1e0 in comm_select (msec=127) at comm_generic.c:377
#10 0x00007f50b1afc6bc in main (argc=<value optimised out>, argv=<value
optimised out>) at main.c:883
This seems very similar to:
http://squid-web-proxy-cache.1019090.n4.nabble.com/Squid-crashes-core-
dumps-and-restarts-automatically-about-once-a-day-td1040891.html
I've attached the full output from 'bt' and 'bt full' in gdb.
--
[1] http://paste.ubuntu.com/888430/ - a variant of which was merged into
upstream squid 2
** Affects: squid (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/958210
Title:
squid ABRT due to storeLocateVaryRead()
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