Subject: [RESEND] vserver + autofs == deadlock.
From:Paweł Sikora <pluto@pld-linux.org>
Date: Mon, 28 May 2012 10:58:29 +0200
Mon, 28 May 2012 10:58:29 +0200
Hi,

i'm pinging this issue one more time...

as you known there's a problem with interaction of mnt is reachable()
and vfs elements (especially with autofs with short 1 sec unmount timeout)
which leads to deadlock on all smp cores during heavy i/o workload.

i've uploaded few screenshots with random oopses from kernel-3.4.0
with the latest vs2.3.3.4 patch: http://pluto.agmk.net/kernel/

could you please investigate this problem?

BR,
Paweł.


Hi,

 

i'm pinging this issue one more time...

 

as you known there's a problem with interaction of mnt is reachable()

and vfs elements (especially with autofs with short 1 sec unmount timeout)

which leads to deadlock on all smp cores during heavy i/o workload.

 

i've uploaded few screenshots with random oopses from kernel-3.4.0

with the latest vs2.3.3.4 patch: http://pluto.agmk.net/kernel/

 

could you please investigate this problem?

 

BR,

Paweł.