From: Michael Cree <mcree@orcon.net.nz>
To: Morten Holst Larsen <mhl@mhlnet.dk>
Cc: linux-alpha@vger.kernel.org,
Venkatesh Pallipadi <venki@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: Matts tree, IRQ related warning
Date: Mon, 01 Nov 2010 20:28:53 +1300 [thread overview]
Message-ID: <4CCE6C35.2030706@orcon.net.nz> (raw)
In-Reply-To: <EAE0CA1B516144649F164BBDA1D1EECD@morten>
On 01/11/10 18:58, Morten Holst Larsen wrote:
> When I build and run a kernel for my DS15 from Matts tree, I get a warning.
> Regardless of the warning everything seems to work ok.
>
> /Morten
>
> Linux version 2.6.36+ (root@ds15) (gcc version 4.2.4 (Debian 4.2.4-6))
> #4 Sun Oct 31 12:12:07 CET 2010
> Booting on Titan variation DEFAULT using machine vector TITAN from SRM
> Major Options: EV67 MAGIC_SYSRQ
> ** SNIP **
> Trying to install interrupt handler for IRQ8
> ------------[ cut here ]------------
> WARNING: at kernel/softirq.c:138 __local_bh_enable+0xac/0xc0()
> Modules linked in:
> fffffc0001677d60 fffffc000167ceb8 fffffc000103506c 0000000000000200
> 0000000000000008 fffffc0001677e00 0000000001234567 0000000000000000
> fffffc00010354e8 fffffc000169aed0 fffffc00010154a8 fffffc000169aed0
> fffffc00010158a4 fffffc0001686a20 0000000000000000 fffffc0001677e18
> fffffc0001010d70 fffffc0001668e0c fffffc000166ad78 fffffc0001695260
> 0000000000000007 0000000000000000 0000000000000440 0000000000000200
> Trace:
> [<fffffc000103506c>] __local_bh_enable+0xac/0xc0
> [<fffffc00010354e8>] irq_enter+0x68/0x80
> [<fffffc00010154a8>] handle_irq+0x58/0x110
> [<fffffc00010158a4>] do_entInt+0xc4/0x1d0
> [<fffffc0001010d70>] ret_from_sys_call+0x0/0x10
> [<fffffc000106d860>] irq_to_desc+0x0/0x30
> [<fffffc000101001c>] _stext+0x1c/0x20
> ---[ end trace 4eaa2a86a8e2da22 ]---
Yes, I have seen that warning too. It's now present in Linus' tree. I
see that commit 75e1056f5 did some work in this area and I am
speculating that it (or follow on commits) might be the cause. CCed to
the authors of the commit to bring it to their attention.
Cheers
Michael.
next prev parent reply other threads:[~2010-11-01 7:28 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-01 5:58 Matts tree, IRQ related warning Morten Holst Larsen
2010-11-01 7:28 ` Michael Cree [this message]
2010-11-01 11:48 ` Peter Zijlstra
2010-11-01 17:27 ` Venkatesh Pallipadi
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