Re: lib/42093: rump rename race testcase crashes

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, Sep 19, 2009 at 09:20:01AM +0000, njoly%pasteur.fr@localhost wrote:
> System: NetBSD lanfeust.sis.pasteur.fr 5.99.18 NetBSD 5.99.18 (LANFEUST) #0: 
> Sat Sep 19 01:00:25 CEST 2009 
> njoly%lanfeust.sis.pasteur.fr@localhost:/local/src/NetBSD/obj.amd64/sys/arch/amd64/compile/LANFEUST
>  amd64
> Architecture: x86_64
> Machine: amd64
> >Description:
> Noticed that ffs/t_renamerace ATF testcase sometimes crash. Trying to debug 
> it,
> i made the following rump small code which do crash too.
> 
> The crashes do only appear when logging is enabled (MNT_LOG), and are not so 
> uncommom.
> On 10 runs; i get 6 success, 3 crashes with `Resource deadlock avoided' and 1
> with `segmentation fault'.

Could it be related to kern/41417, which have been investigated to be
a deadlock in WAPBL's copy of rename ?

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--