From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Peter Zijlstra <peterz@infradead.org>
Cc: David Miller <davem@davemloft.net>,
mingo@elte.hu, linux-kernel@vger.kernel.org, tglx@linutronix.de
Subject: Re: Soft lockup regression from today's sched.git merge.
Date: Wed, 7 May 2008 00:41:01 +0200 [thread overview]
Message-ID: <200805070041.02618.rjw@sisk.pl> (raw)
In-Reply-To: <1208868304.7115.251.camel@twins>
On Tuesday, 22 of April 2008, Peter Zijlstra wrote:
> On Tue, 2008-04-22 at 03:05 -0700, David Miller wrote:
>
> > BTW, I'm also getting cpu's wedged in the group aggregate code:
> >
> > [ 121.338742] TSTATE: 0000009980001602 TPC: 000000000054ea20 TNPC: 0000000000456828 Y: 00000000 Not tainted
> > [ 121.338778] TPC: <__first_cpu+0x4/0x28>
> > [ 121.338791] g0: 0000000000000000 g1: 0000000000000002 g2: 0000000000000000 g3: 0000000000000002
> > [ 121.338809] g4: fffff803fe9b24c0 g5: fffff8001587c000 g6: fffff803fe9d0000 g7: 00000000007b7260
> > [ 121.338827] o0: 0000000000000002 o1: 00000000007b7258 o2: 0000000000000000 o3: 00000000007b7800
> > [ 121.338845] o4: 0000000000845000 o5: 0000000000000400 sp: fffff803fe9d2ed1 ret_pc: 0000000000456820
> > [ 121.338879] RPC: <aggregate_group_shares+0x10c/0x16c>
> > [ 121.338893] l0: 0000000000000400 l1: 000000000000000d l2: 00000000000003ff l3: 0000000000000000
> > [ 121.338911] l4: 0000000000000000 l5: 0000000000000000 l6: fffff803fe9d0000 l7: 0000000080009002
> > [ 121.338928] i0: 0000000000801c20 i1: fffff800161ca508 i2: 00000000000001d8 i3: 0000000000000001
> > [ 121.338946] i4: fffff800161d9c00 i5: 0000000000000001 i6: fffff803fe9d2f91 i7: 0000000000456904
> > [ 121.338968] I7: <aggregate_get_down+0x84/0x13c>
> >
> > I'm suspecting the deluge of cpumask changes that also went in today.
> >
> > I guess I'll be bisecting all day tomorrow too :-/
>
> Sadly both the cpumask changes and the group load-balancer came in the
> same batch - so its all new code. Also, it looks like the cpumask
> changes are before the load balance changes - so bisecting this will be
> 'fun'.
Can you please tell me what the current status of this is?
Rafael
next prev parent reply other threads:[~2008-05-06 22:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-22 8:59 Soft lockup regression from today's sched.git merge David Miller
2008-04-22 9:14 ` Ingo Molnar
2008-04-22 10:05 ` David Miller
2008-04-22 12:45 ` Peter Zijlstra
2008-05-06 22:41 ` Rafael J. Wysocki [this message]
2008-05-06 23:05 ` David Miller
2008-05-07 6:43 ` Ingo Molnar
2008-05-07 18:56 ` Rafael J. Wysocki
2008-04-23 8:50 ` [patch] softlockup: fix false positives on nohz if CPU is 100% idle for more than 60 seconds Ingo Molnar
2008-04-23 10:55 ` David Miller
2008-04-23 12:29 ` David Miller
2008-04-23 13:36 ` Ingo Molnar
2008-04-23 23:23 ` David Miller
2008-04-23 5:42 ` Soft lockup regression from today's sched.git merge David Miller
2008-04-23 7:32 ` Dhaval Giani
2008-04-23 7:51 ` Ingo Molnar
2008-04-23 9:40 ` Ingo Molnar
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