Subject: Re: top kvm_getlwps
To: Andrew Doran <ad@netbsd.org>
From: Zafer Aydogan <zafer@aydogan.de>
List: current-users
Date: 07/04/2007 18:10:47
2007/7/4, Andrew Doran <ad@netbsd.org>:
> Hi Zafer,
>
> On Wed, Jul 04, 2007 at 01:37:06AM +0200, Zafer Aydogan wrote:
>
> > If run top and select p and a pid (for example audacious mp3 player)
> > and then t to show threads and then exit the application (audacious),
> > then top dumps core.
> > It looks like, top tries to get the pid/lwps, after it exited.
> >
> > load averages:  0.50,  0.23,  0.11                  up 0 days,  0:08
> > 20:39:44
> > 6 threads:     6 sleeping
> > CPU states: 10.9% user,  0.0% nice,  5.0% system,  0.0% interrupt, 84.2%
> > idle
> > Memory: 146M Act, 4K Inact, 4180K Wired, 17M Exec, 79M File, 330M Free
> > Swap:
> > kvm_open: kvm_getlwps: No such process
> > Memory fault (core dumped) ATE      TIME   WCPU    CPU COMMAND      NAME
> > $ 019     1 zafer     -13 lwpwai/0   0:03  0.94%  0.93% audacious   -
> > 1019     7 zafer     -14 nanosl/0   0:01  0.94%  0.83% audacious   -
> > 1019     8 zafer     -13 nanosl/0   0:00  0.06%  0.05% audacious   -
> > 1019     6 zafer       2 poll/0     0:00  0.00%  0.00% audacious   -
> > 1019     2 zafer     -13 sigwai/0   0:00  0.00%  0.00% audacious   -
> > 1019     4 zafer     -14 parked/0   0:00  0.00%  0.00% audacious   -
> >
> > without t, the process just disappears.
>
> IIRC it's a bug in kvm_getlwps(). Are you able to file a PR?
>
I am.
> Andrew
>
Zafer