* 2.6.35-rc1 and RCU
@ 2010-06-04 9:44 Kyle McMartin
2010-06-04 11:39 ` Helge Deller
0 siblings, 1 reply; 4+ messages in thread
From: Kyle McMartin @ 2010-06-04 9:44 UTC (permalink / raw)
To: linux-parisc
Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
If not, I'll debug it this weekend or when I get back to Canada...
2.6.34+the merged series booted (and continues) to boot fine, so I
suspect it's not something we did.
--Kyle
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.35-rc1 and RCU
2010-06-04 9:44 2.6.35-rc1 and RCU Kyle McMartin
@ 2010-06-04 11:39 ` Helge Deller
2010-06-04 15:50 ` Kyle McMartin
0 siblings, 1 reply; 4+ messages in thread
From: Helge Deller @ 2010-06-04 11:39 UTC (permalink / raw)
To: Kyle McMartin; +Cc: linux-parisc
On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
Yes, I did see this as well.
Helge
> If not, I'll debug it this weekend or when I get back to Canada...
> 2.6.34+the merged series booted (and continues) to boot fine, so I
> suspect it's not something we did.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.35-rc1 and RCU
2010-06-04 11:39 ` Helge Deller
@ 2010-06-04 15:50 ` Kyle McMartin
2010-06-14 13:47 ` Kyle McMartin
0 siblings, 1 reply; 4+ messages in thread
From: Kyle McMartin @ 2010-06-04 15:50 UTC (permalink / raw)
To: Helge Deller; +Cc: Kyle McMartin, linux-parisc
On Fri, Jun 04, 2010 at 01:39:42PM +0200, Helge Deller wrote:
> On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> > Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
>
> Yes, I did see this as well.
>
Cool, next time I reboot I'll see if initcall_debug helps.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 2.6.35-rc1 and RCU
2010-06-04 15:50 ` Kyle McMartin
@ 2010-06-14 13:47 ` Kyle McMartin
0 siblings, 0 replies; 4+ messages in thread
From: Kyle McMartin @ 2010-06-14 13:47 UTC (permalink / raw)
To: Kyle McMartin; +Cc: Helge Deller, linux-parisc
On Fri, Jun 04, 2010 at 11:50:33AM -0400, Kyle McMartin wrote:
> On Fri, Jun 04, 2010 at 01:39:42PM +0200, Helge Deller wrote:
> > On 06/04/2010 11:44 AM, Kyle McMartin wrote:
> > > Did anyone else see a hang on 2.6.35-rc1 just after RCU initializes?
> >
> > Yes, I did see this as well.
> >
>
> Cool, next time I reboot I'll see if initcall_debug helps.
>
I debugged this further, it appears to be a code generation bug...
if kernel/rcutree_plugin.h::rcu_bootup_announce_oddness is not called,
we don't hang.
But it's just a bunch of #ifdef'd printks, so I'm not sure how that
could be going wrong.
More debugging to come.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-06-14 13:47 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2010-06-04 9:44 2.6.35-rc1 and RCU Kyle McMartin
2010-06-04 11:39 ` Helge Deller
2010-06-04 15:50 ` Kyle McMartin
2010-06-14 13:47 ` Kyle McMartin
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