From: Tejun Heo <tj@kernel.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Andrew Morton <akpm@linux-foundation.org>,
Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH 1/2] lockdep: move early boot local IRQ enable/disable status to init/main.c
Date: Thu, 20 Jan 2011 12:11:49 +0100 [thread overview]
Message-ID: <20110120111149.GD6036@htj.dyndns.org> (raw)
In-Reply-To: <20110120110635.GB6036@htj.dyndns.org>
Hello, guys.
These two patches remove both warnings. The first warning was
completely spurious. The second lockdep one was triggered by
on_each_cpu() enabling local IRQ too early.
I don't think percpu allocator itself malfunctioned. There was no
allocation failure. It whines when percpu allocation fails but didn't
in the log. Other than calling vfree() early triggering the above
condition, it worked okay.
So, it's either the early enabling of local IRQ by on_each_cpu()
breaking something in the IRQ subsystem or something different. Ingo,
can you please see whether these two patches cure the panic too?
Thanks.
--
tejun
next prev parent reply other threads:[~2011-01-20 11:11 UTC|newest]
Thread overview: 69+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 23:54 Linux 2.6.38-rc1 Linus Torvalds
2011-01-19 2:07 ` Linus Torvalds
2011-01-19 3:42 ` Justin Mattock
2011-01-19 3:53 ` Linus Torvalds
2011-01-19 4:05 ` Justin Mattock
2011-01-19 5:10 ` nobody
2011-01-19 5:42 ` Linus Torvalds
2011-01-19 5:56 ` Linus Torvalds
2011-01-19 18:07 ` Steven Rostedt
2011-01-19 18:26 ` Linus Torvalds
2011-01-21 3:23 ` tag&track [Re: Linux 2.6.38-rc1] nobody
2011-01-21 8:24 ` Alexey Dobriyan
2011-01-23 8:13 ` Linux 2.6.38-rc1 Török Edwin
2011-01-19 7:39 ` Linux 2.6.38-rc1 doesn't boot Markus Trippelsdorf
2011-01-19 7:46 ` Shaohua Li
2011-01-19 7:55 ` Markus Trippelsdorf
2011-01-19 7:49 ` Markus Trippelsdorf
2011-01-19 8:12 ` Shaohua Li
2011-01-19 8:56 ` H. Peter Anvin
2011-01-19 9:09 ` Ingo Molnar
2011-01-20 2:08 ` Shaohua Li
2011-01-20 3:32 ` Lu, Hongjiu
2011-01-20 11:25 ` Ingo Molnar
2011-01-20 15:08 ` Anvin, H Peter
2011-01-21 7:18 ` Shaohua Li
2011-01-21 7:55 ` Shaohua Li
2011-01-21 15:28 ` H. Peter Anvin
2011-01-21 15:37 ` Lu, Hongjiu
2011-01-21 21:09 ` Ingo Molnar
2011-01-19 9:33 ` [tip:x86/urgent] Revert "x86: Make relocatable kernel work with new binutils" tip-bot for Ingo Molnar
2011-01-20 4:59 ` Linux 2.6.38-rc1 doesn't boot Alexandre Courbot
2011-01-19 8:39 ` PPS parport boot lockup: INFO: HARDIRQ-READ-safe -> HARDIRQ-READ-unsafe lock order detected Ingo Molnar
2011-01-20 13:04 ` Alexander Gordeev
2011-01-21 14:44 ` Alexander Gordeev
2011-01-21 16:37 ` Linus Torvalds
2011-01-21 19:43 ` Ingo Molnar
2011-01-24 23:28 ` Alexander Gordeev
2011-01-24 23:46 ` [PATCH] pps: claim parallel port exclusively Alexander Gordeev
2011-01-25 0:19 ` Ingo Molnar
2011-01-24 15:00 ` PPS parport boot lockup: INFO: HARDIRQ-READ-safe -> HARDIRQ-READ-unsafe lock order detected Alexander Gordeev
2011-01-24 15:12 ` [PATCH] parport: make lockdep happy with waitlist_lock Alexander Gordeev
2011-01-24 15:28 ` Ingo Molnar
2011-01-24 15:33 ` Alexander Gordeev
2011-01-19 12:02 ` percpu related boot crash on x86 (was: Linux 2.6.38-rc1) Ingo Molnar
2011-01-19 12:44 ` Tejun Heo
2011-01-19 12:48 ` Peter Zijlstra
2011-01-19 12:56 ` Pekka Enberg
2011-01-19 13:12 ` Peter Zijlstra
2011-01-19 13:13 ` Tejun Heo
2011-01-19 20:53 ` Ingo Molnar
2011-01-19 23:11 ` Ingo Molnar
2011-01-20 8:31 ` percpu related boot crash on x86 Pekka Enberg
2011-01-20 10:47 ` Peter Zijlstra
2011-01-20 11:12 ` Eric Dumazet
2011-01-20 11:19 ` Tejun Heo
2011-01-20 11:06 ` [PATCH 1/2] lockdep: move early boot local IRQ enable/disable status to init/main.c Tejun Heo
2011-01-20 11:07 ` [PATCH 2/2] smp: allow on_each_cpu() to be called while early_boot_irqs_disabled " Tejun Heo
2011-01-20 20:22 ` [tip:core/urgent] smp: Allow " tip-bot for Tejun Heo
2011-01-20 11:11 ` Tejun Heo [this message]
2011-01-20 11:23 ` [PATCH 1/2] lockdep: move early boot local IRQ enable/disable " Peter Zijlstra
2011-01-20 11:26 ` Tejun Heo
2011-01-20 11:30 ` Pekka Enberg
2011-01-20 11:38 ` Peter Zijlstra
2011-01-20 12:00 ` Ingo Molnar
2011-01-20 12:20 ` [PATCH UPDATED " Tejun Heo
2011-01-20 11:51 ` [PATCH " Ingo Molnar
2011-01-20 20:21 ` [tip:core/urgent] lockdep: Move " tip-bot for Tejun Heo
2011-01-19 21:40 ` Linux 2.6.38-rc1 Alan Cox
2011-01-21 15:30 ` Aaro Koskinen
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