Re: Userspace process may be able to DoS kernel

Joerg Platte
2006-10-12T10:54:11Z

Am Donnerstag, 12. Oktober 2006 08:49 schrieb Willy Tarreau:
> On Thu, Oct 12, 2006 at 08:02:58AM +0200, Joerg Platte wrote:
> > Using 2.6.18 does not solve the problem. I can see exactly the same
> > behavior with a vanilla and not tainted 2.6.18 kernel.
>
> Just out of curiosity, does the system still respond to ping during this
> period, and does the time still progress during the lock up ? Not that it
> could help me find out what's happening, but it might help troubleshooting
> the problem.

Pinging the system works and the the time is still correct. But this time I
was not able to trigger a kernel warning, because I was not able to generate
a long lockup. Maybe I'll have to wait a few more hours before trying it
again, because the duration of the lockup is proportional to the time skype
is running.

regards,
Jörg