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SubjectRe: BUG: Bad page state in process (current git)
On 2010.11.12 at 13:20 +0100, Markus Trippelsdorf wrote:
> On 2010.11.10 at 15:46 -0600, Christoph Lameter wrote:
> > On Wed, 10 Nov 2010, Markus Trippelsdorf wrote:
> >
> > > I found this in my dmesg:
> > > ACPI: Local APIC address 0xfee00000
> > > [ffffea0000000000-ffffea0003ffffff] PMD -> [ffff8800d0000000-ffff8800d39fffff] on node 0
> >
> > That only shows you how the memmap was virtually mapped.
>
> Yes. Fortunately the BUG is gone since I pulled the upcoming drm fixes

No. I happend again today (with those fixes already applied):

BUG: Bad page state in process knode pfn:7f0a8
page:ffffea0001bca4c0 count:0 mapcount:0 mapping: (null) index:0x0
page flags: 0x4000000000000008(uptodate)
Pid: 18310, comm: knode Not tainted 2.6.37-rc1-00549-gae712bf-dirty #16
Call Trace:
[<ffffffff810a9022>] ? bad_page+0x92/0xe0
[<ffffffff810aa240>] ? get_page_from_freelist+0x4b0/0x570
[<ffffffff8102e50e>] ? apic_timer_interrupt+0xe/0x20
[<ffffffff810aa413>] ? __alloc_pages_nodemask+0x113/0x6b0
[<ffffffff810a2dd4>] ? file_read_actor+0xc4/0x190
[<ffffffff810a4a70>] ? generic_file_aio_read+0x560/0x6b0
[<ffffffff810bdf8d>] ? handle_mm_fault+0x6bd/0x970
[<ffffffff8104b1d0>] ? do_page_fault+0x120/0x410
[<ffffffff810c3d85>] ? do_brk+0x275/0x360
[<ffffffff81452d8f>] ? page_fault+0x1f/0x30
Disabling lock debugging due to kernel taint
--
Markus


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