Re: proc_pid_stat crashes in 2.6.2 (was 2.6.0-test11: Crash in ps axH)

From: Petr Vandrovec
Date: Thu Feb 19 2004 - 13:38:05 EST


On Thu, Feb 19, 2004 at 06:30:50PM +0000, Kieran wrote:
> >Hi,
> > I already reported this crash twice on 2.6.0-test11, and now I
> >reproduced it on something more fresh - on 2.6.2-bk-something like it
> >was actual on Feb 4. It is really annoying, as any user can do 'ps axH'
> >and crash system after some uptime :-( Crash is identical to one
> >I got with 2.6.0-test11, so it looks like that I'll have to go back
> >to 2.4.x on publicly accessible machines. After about 14 days uptime.
> >
> > I've got no replies to previous reports.
> > Thanks,
> > Petr Vandrovec
> > vandrove@xxxxxxxxxx
>
> what version of procps?

Not that it should matter, as walking through /proc/* could do same,
but... 3.1.15-3. I have no idea what procps were installed at the
beginning of February or in the December. Until crash 'ps ax' does not
cause problem. Only 'axH', which descends to /task/ subdirectories,
crashes.

usermap:~# dpkg -l procps
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==========================-==========================-====================================================================
ii procps 3.1.15-3 The /proc file system utilities
usermap:~#

Petr Vandrovec

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