can you please file a bug report with this info. It's quite clear what happened from the data you have collected so far. ons 2009-08-19 klockan 10:54 +0200 skrev Thijs Stuurman: > Squid-users, > > We have plenty of servers running all kinds of versions of Squid but one of the most stable version we run on a fast server, keeps crashing for an unknown reason. We hope someone on this mailing list can shed some light on the issue. > About once a day (not every day) Squid crashes, makes a core dump and restarts. Everything else on the server experiences no problems, nothing odd in the systems log files and the memory came out just fine in a memtest. We didn't even notice it until we saw the diskspace usage grow with a few spikes. The core dumps were about 5 gigabytes each, the latest just 500 megabytes but they all show the same backtrace. > > Server information: > > Squid version: 2.7.STABLE6-2 > Kernel: 2.6.24-24-server > Issue: Ubuntu 8.04.3 LTS > Memory: 12G > CPU: single QC Intel(R) Xeon(R) CPU L5506 @ 2.13GHz > > > Regular messages in the cache log (garbage has been edited out in all of the following pieces): > > """ > httpReadReply: Excess data from "GET http://...." > """ > """ > storeAddVaryReadOld: New index aborted at 8188 (836) > """ > """ > storeAufsOpenDone: (2) No such file or directory > """ > """ > VaryData: accept-encoding="gzip,%20deflate", user-agent="Mozilla%2F4.0%20(compatible . %20CLR%203.0.30618)" > """ > > Cache log right before the crash/restart: > > """ > storeLocateVaryRead: Unexpected data ' . ' . Starting Squid Cache version 2.7.STABLE6 for amd64-debian-linux-gnu... > """ > > > gdb backtrace on the core dump: > > """ > (gdb) backtrace > #0 0x00007fdec9826095 in raise () from /lib/libc.so.6 > #1 0x00007fdec9827af0 in abort () from /lib/libc.so.6 > #2 0x00007fdec981f2df in __assert_fail () from /lib/libc.so.6 > #3 0x00000000004ac124 in xstrndup ( > s=0x16377744 "\nÙ\206A/\210\216p4< . \003\026ô", n=0) at util.c:616 > #4 0x0000000000477ae4 in storeLocateVaryRead (data=0x1a08fc48, buf=0x1e6ebe00 "гj\036", size=4050) at store.c:878 > #5 0x0000000000478274 in storeClientCallback (sc=0x12f7d428, sz=4050) at store_client.c:146 > #6 0x000000000048fd6b in storeAufsReadDone (fd=<value optimized out>, my_data=0x140c8e58, > buf=0x12f15ef0 "\215F\004\"\t\234G\b . 203ôõ\023 2º", len=<value optimized out>, errflag=0) at aufs/store_io_aufs.c:400 > #7 0x0000000000491f4a in aioCheckCallbacks (SD=<value optimized out>) at aufs/async_io.c:319 > #8 0x000000000047a7d8 in storeDirCallback () at store_dir.c:511 > #9 0x000000000042a7ac in comm_select (msec=307) at comm_generic.c:377 > #10 0x00000000004573e6 in main (argc=<value optimized out>, argv=0x7fffd28695d8) at main.c:884 > """ > > > Thijs Stuurman > System Administrator > > Nxs Internet BV > Kabelweg 37 > 1014 BA AMSTERDAM > > Tel.: +31 (0) 20 46 88 071 > Fax: +31 (0) 20 46 88 236 > Mail: beheer.linux@xxxxxx > >