4.8-STABLE crashes

Jonathan jonathan at sirtis.org.uk
Mon Apr 28 11:53:31 PDT 2003


Hi,

I've been working on a machine which is crashing as random intervals
with no apparent faults being logged.

Typically, the box just dies. Sometimes it reboots, sometimes it needs a
reset.

The only thing I've seen so far is this:

Apr 28 19:39:01 stats /kernel: issignal
Apr 28 19:39:01 stats /kernel: issignal
Apr 28 19:39:29 stats last message repeated 12 times
Apr 28 19:39:29 stats last message repeated 12 times
Apr 28 19:40:35 stats last message repeated 9 times
Apr 28 19:40:35 stats last message repeated 9 times

I've not found anything useful about issignal - is this something
sinister or a red herring?

Here's the current top:

ast pid:  1048;  load averages:  1.37,  1.40,  1.17 up 0+00:41:12
19:42:02
65 processes:  2 running, 63 sleeping
CPU states:     % user,     % nice,     % system,     % interrupt,     %
idle
Mem: 170M Active, 42M Inact, 130M Wired, 1992K Cache, 112M Buf, 660M
Free
Swap: 2033M Total, 2033M Free

  PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU COMMAND
  523 www       58   0  7016K  5716K RUN     15:15 80.08% 80.08% httpd
  956 www        2   0  8504K  7300K sbwait   0:03  1.86%  1.86% httpd

Is there a way I can see what the httpd process is doing? I tried "truss
-o /tmp/truss.output -p 523" but there's nothing being logged.

This is a busy webserver, so trying to match up hits against processes
is a pain and lsof reveals nothing helpful.

I think the problem might be some dodgy PHP/MySQL coding, but I've had
no joy so far.

TIA,

Jonathan



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