Messages in this thread | | | Date | Fri, 9 Oct 2009 16:37:07 -0700 | From | Andy Isaacson <> | Subject | Re: DMAR regression in 2.6.31 leads to ext4 corruption? |
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On Thu, Oct 08, 2009 at 11:17:29PM -0700, Andy Isaacson wrote: > I'm testing DMAR support on 2.6.32 on Intel VT-d laptop platforms. It > was pretty stable circa 2.6.31-rc5 (we have dozens of machines running > 2.6.31-rc8), but in the last two weeks I've had a bunch of instability > on Linus' tip kernels that looked potentially like IOMMU badness. > > For example, > <20090928191644.GR12922@hexapodia.org> > http://lkml.org/lkml/2009/9/28/201 > > Today while running 817b33d38 I got the following (on a Thinkpad X200 > I'd replaced the Dell with, just in case it was previously-good hardware > going bad). > > [ 29.450550] EXT4-fs error (device sda1): ext4_lookup: deleted inode referenced: 79 > [ 30.022328] DRHD: handling fault status reg 3 > [ 30.022328] DMAR:[DMA Write] Request device [00:02.0] fault addr ddae28000 > [ 30.022328] DMAR:[fault reason 05] PTE Write access is not set > [ 30.146136] DRHD: handling fault status reg 3 > [ 30.248938] DMAR:[DMA Write] Request device [00:02.0] fault addr ddae28000 > [ 30.248939] DMAR:[fault reason 05] PTE Write access is not set > > The full output of fsck and full dmesg are at the URL below.
I also have a "e2image -r" for this filesystem. Please let me know if you'd like any further information.
-andy
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