From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Christian Kujau <lists@nerdbynature.de>
Cc: linuxppc-dev@lists.ozlabs.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: 3.5.0-rc5: BUG: soft lockup - CPU#0 stuck for 22s
Date: Mon, 02 Jul 2012 14:50:49 +1000 [thread overview]
Message-ID: <1341204649.2588.29.camel@pasglop> (raw)
In-Reply-To: <alpine.DEB.2.01.1207010009270.5568@trent.utfs.org>
On Sun, 2012-07-01 at 00:18 -0700, Christian Kujau wrote:
> Hi,
>
> while trying to upgrade from 3.4.0 to 3.5.0-rc5 on this Powerbook G4
> (powerpc 32 bit), this happens during booting:
>
> --------------
> usb 2-1: new full-speed USB device number 4 using ohci_hcd
> SCSI subsystem initialized
> scsi0 : SBP-2 IEEE-1394
> scsi1 : SBP-2 IEEE-1394
> firewire_sbp2 fw1.0: logged in to LUN 0000 (0 retries)
> scsi 0:0:0:0: Direct-Access Ext Hard Disk PQ: 0 ANSI: 4
Interesting... I observed something roughly similar on a dual G4
the other day associated with a 30s to 1mn pause during boot. RCU
was complaining loudly.
In my case, it did continue booting normally, is that the case for you ?
Also if I compile the kernel without CONFIG_SMP, it did go away as well,
do you observe that too ?
I don't have a spare cycle to investigate this problem this week I'm
afraid, it might help if you could try a bisection though.
Cheers,
Ben.
next prev parent reply other threads:[~2012-07-02 4:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-01 7:18 3.5.0-rc5: BUG: soft lockup - CPU#0 stuck for 22s Christian Kujau
2012-07-02 4:50 ` Benjamin Herrenschmidt [this message]
2012-07-02 6:30 ` Christian Kujau
2012-07-02 16:45 ` Paul E. McKenney
2012-07-02 18:46 ` Christian Kujau
2012-07-02 11:58 ` Christian Kujau
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