Subject: Re: "parked" processes?
To: Brian de Alwis <email@example.com>
From: Andrew Doran <firstname.lastname@example.org>
Date: 07/27/2007 23:34:35
On Fri, Jul 27, 2007 at 02:29:15PM -0600, Brian de Alwis wrote:
> On 2007.07.27 21:12:30 +0100, Andrew Doran wrote:
> > A gcore on the process won't kill it but will give you a core file. Please
> > let me know if you have gotten a core and I'll give you details of an ftp
> > server where you can upload it.
> Hmm, I can't seem to do a gcore:
> $ gcore 923
> gcore: ptrace(PT_DUMPCORE) to 923 failed: File too large
> $ df -h .
> Filesystem Size Used Avail %Cap Mounted on
> /dev/wd0a 45G 38G 4.8G 88% /
You need to adjust the max coredump size with ulimit -c. Without looking
that probably needs to be done in the shell before you start firefox, not
> Interestingly, running the gcore actually deparked the process and
> it continued like nothing had happened.
That's positive in that it suggests there is an undiscovered sync issue in
the pthread library / kernel. Unfortunatley it also suggests a bug in the
way gcore works, it shouldn't have visible effects for the process which is
being dumped. :-)