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From: Dirk Hohndel <hohndel@infradead.org>
To: Dirk Hohndel <hohndel@infradead.org>
Cc: "Han, Weidong" <weidong.han@intel.com>,
	"'Grant Grundler'" <grundler@parisc-linux.org>,
	"'linux-pci@vger.kernel.org'" <linux-pci@vger.kernel.org>,
	"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
	"'Jesse Barnes'" <jbarnes@virtuousgeek.org>,
	"'iommu@lists.linux-foundation.org'" 
	<iommu@lists.linux-foundation.org>,
	"'Ingo Molnar'" <mingo@elte.hu>,
	"'Arjan van de Ven'" <arjan@infradead.org>
Subject: Re: git-latest: kernel oops in IOMMU setup
Date: Thu, 8 Jan 2009 20:52:22 -0800	[thread overview]
Message-ID: <20090108205222.2c89dcde@infradead.org> (raw)
In-Reply-To: <20090108180515.2f279671@infradead.org>

On Thu, 8 Jan 2009 18:05:15 -0800
Dirk Hohndel <hohndel@infradead.org> wrote:

> On Fri, 9 Jan 2009 08:58:46 +0800 "Han, Weidong"
> 
> I updated to Linus' latest git (as your description made me wonder if
> the async stuff might play a role here). I still get an oops - but at
> a different spot and the system no longer hangs - it partly recovers
> (but things aren't too well - for example my USB keyboard / mouse
> don't work anymore). 

Spoke too soon. Rebooted and had the same hard lockup again. This time
I had my camera within reach, so here's the trace:

device_to_iommu+0x33/0x73
domain_context_mapping_one+0x37/0x335
domain_context_mapping+0x25/0xa7
iommu_prepare_identity+0xd7/0xf3
intel_iommu_init+0x4e4/0x8f3
? mutex_lock
? sysctl_net_init
? pci_iommu_init
pci_iommu_init

I also have stack, code and register values. Let me know if you need
them. Or I can just post the picture :-)

Again, very latest git tree, VT-d enabled.

/D

-- 
Dirk Hohndel
Intel Open Source Technology Center

  reply	other threads:[~2009-01-09  4:52 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-08 20:05 Dirk Hohndel
2009-01-08 21:41 ` Grant Grundler
2009-01-08 21:56   ` Dirk Hohndel
2009-01-09  0:58   ` Han, Weidong
2009-01-09  2:05     ` Dirk Hohndel
2009-01-09  4:52       ` Dirk Hohndel [this message]
2009-01-09  6:53         ` Han, Weidong
2009-01-09 15:08           ` Dirk Hohndel
2009-01-09 16:16             ` Zhao, Yu
2009-01-09 16:34               ` Dirk Hohndel
2009-01-09 16:45                 ` Zhao, Yu
2009-01-09 16:55                   ` Dirk Hohndel
2009-01-09 16:58                   ` [PATCH] Prevent oops at boot with VT-d Dirk Hohndel
2009-01-11 15:25                     ` [Resend][PATCH] " Dirk Hohndel

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