Re: ERR_DNS FAIL causes segmentation fault

Thanks for your reply... yes I should have looked at the access log to
find the destination...

anyway, if anyone can come up with a fix for this problem I would be
grateful for the input.

cheers,
Carey Nairn

On Thu, 19 Jun 1997, Cord Beermann wrote:

> Hallo! Du (Carey Nairn) hast geschrieben:
>
> >just noticed one of our squid caches went down with a seg fault following
> >an ERR_DNS FAIL with the following URL:
> >
> >http://a23456789.a23456789.a23456789.a23456789.a23456789.a23456789.a23456789
> >.a23456789.a23456789.a23456789.a23456789.a23456789.a23456789.a23456789.a2345
> >6789.a23456789.a23456789.a23456789.a23456789.a23456789.a23456789.a23456789.a
> >23456789.a23456789.a23456789.a2345/
>
> ACK. I tried this on our 1.1.9 on Solaris 2.5.1 which ran (until
> this) since more than a month without problems. it answered with
>
> FATAL: Received Segment Violation...dying.
>
> >not sure where this url came from, but it reliably crashed the cache on
> >further testing.
>
> In the access.log is the destination not logged.
>
> Heres the gdb output:
>
> GDB is free software and you are welcome to distribute copies of it
> under certain conditions; type "show copying" to see the conditions.
> There is absolutely no warranty for GDB; type "show warranty" for
> details.
> GDB 4.16 (sparc-sun-solaris2.5),
> Copyright 1996 Free Software Foundation, Inc...
> Core was generated by `squid -sY'.
> Program terminated with signal 6, Aborted.
> Reading symbols from /usr/lib/libm.so.1...done.
> Reading symbols from /usr/lib/libresolv.so.2...done.
> Reading symbols from /usr/lib/libsocket.so.1...done.
> Reading symbols from /usr/lib/libnsl.so.1...done.
> Reading symbols from /usr/lib/libc.so.1...done.
> Reading symbols from /usr/lib/libdl.so.1...done.
> Reading symbols from /usr/lib/libintl.so.1...done.
> Reading symbols from /usr/lib/libmp.so.1...done.
> Reading symbols from /usr/lib/libw.so.1...done.
> Reading symbols from /usr/lib/nss_nisplus.so.1...done.
> Reading symbols from /usr/lib/straddr.so...done.
> #0 0xef634340 in _kill ()
> (gdb) where
> #0 0xef634340 in _kill ()
> #1 0xef5fa5e8 in abort ()
> #2 0x41d64 in death (sig=11) at tools.c:294
> #3 <signal handler called>
> #4 ipcache_dnsHandleRead (fd=0, dnsData=0x15d520) at ipcache.c:586
> #5 0x1e3d4 in comm_select (sec=7) at comm.c:1042
> #6 0x30810 in main (argc=417792, argv=0xefffff1c) at main.c:712
>
> Cord
>
> CC: squid-bugs
> --
> Cord Beermann http://www.Wunder-Nett.org/~cord/
> cord@Wunder-Nett.org IRC: Cord@Wunder-Nett
>
>
Received on Thu Jun 19 1997 - 06:03:24 MDT