On 10/09/2012 01:46 PM, Patrick O'Callaghan wrote:
On Mon, 2012-10-08 at 19:16 +0200, Ralf Corsepius wrote:
On 10/08/2012 02:15 PM, Patrick O'Callaghan wrote:
On Mon, 2012-10-08 at 09:46 +0200, Ralf Corsepius wrote:
On 10/08/2012 04:38 AM, Temlakos wrote:
Beginning about an hour ago, I've been hit with a ton of application
terminations. All of them say the same thing: "Signal 11 (SIGSEGV).
Which I believe translates as "Signal segmentation violation."
In addition to what others already wrote, check if you aren't running
out of memory (run "df" and check its output).
df tells you about free disk space.
Yes - My fault. I probably should have written "disk space" instead of
"memory".
It has nothing whatever to do with
RAM,
It depends. C.f. tmpfs, RAM disks etc.
besides which a lack of disk space (even in swap) would cause a
system error message, not a segfault.
When running out of memory, inside of a program a malloc may fail, which
may cause a pointer be set something invalid, which later may cause a
SEGFAULT when the pointer is dereferenced.
If malloc fails it will return an error rather than a pointer. Now of
course a completely incompetent programmer might not bother checking the
return value, hence causing a segfault when the invalid pointer is used,
but the OP mentioned that several programs were getting segfaults in a
short period of time.
I recall thunderbird and vlc having been mentioned.
It's highly improbable that all of these
(including widely used apps such as Thunderbird) are so badly
programmed.
Well, I would not want to exclude vlc (with its zoo of highly sensitive
and error prone libs underneath and within), thunderbird (with it's
unstable plug-in system) from this problems.
Actually, if the OP should be using /tmp on tmpfs, any program can tear
down anything else. I have seen "presumably innocent" compiler jobs
tearing down firefox and or thunderbird ;)
Ralf
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