On Jan 4, 2008, at 12:44 AM, mljv@xxxxxxxxxxxx wrote:
Hi,
i had a rather strange crash of my server (log file at the end of my
mailling)
and i was googling for Signal 4 and read http://en.wikipedia.org/wiki/SIGILL
i am running on linux 2.6.18-5-686 and postgresql-8.1.9-0etch2.
Most (all?) other processes on this machine got signal 4 at this
time also
(postfix, munin), etc
As i understood my reading about signal 4, there must be some kind
of hardware
failure as the postgresql log says, too. I rebooted the server and
since then
everything works fine. But i am going to drop this server and
replace it with
a new one of course. I just want to ask if there is something else
besideds
hardware failure which could force a signall 4 (ILL)?
Software bugs can on rare occasions (by overwriting return stack data
and heading off into the weeds, say), but there's no way they'd do
that in
multiple processes simultaneously
It's conceivable it was just a transient problem ("a cosmic ray" -
they really do
happen occasionally) but it's much more likely you have bad hardware.
Probably either RAM, disk or disk controller.
Cheers,
Steve
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