Re: [Xen-devel] xen 4.0.2rc3/kernel 2.6.32.36: BUG: unable to handle kernel paging request

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Fri, Apr 15, 2011 at 12:47:51PM -0300, Gerd Jakobovitsch wrote:
> Hello Pasi:
> 
> Yes, the kernel includes the last bugfix, and additionally the patch
> Daniel Stodden indicated yesterday:
> >>The BUG message at dmesg:

.. snip..
> >>
> >>[66007.135552] BUG: unable to handle kernel paging request at
> >>ffff8800004ca458
> >>[66007.135567] IP: [<ffffffff8100d4ae>] xen_set_pte+0x3e/0x4b
> >>[66007.135580] PGD 1002067 PUD 1006067 PMD 2d78067 PTE 100000004ca025
> >>[66007.135675] Oops: 0003 [#1] SMP DEBUG_PAGEALLOC

.. snip..
> >>[66007.135860] Call Trace:
> >>[66007.135868]  [<ffffffff81034740>] set_pte+0x17/0x1b
> >>[66007.135875]  [<ffffffff8103474d>] set_pte_atomic+0x9/0xb
> >>[66007.135882]  [<ffffffff81034e77>] __change_page_attr_set_clr+0x186/0x82d
> >>[66007.135936]  [<ffffffff8124f4a0>] ? _raw_spin_unlock+0xab/0xb1
> >>[66007.135951]  [<ffffffff8157641f>] ? _spin_unlock+0x26/0x2a
> >>[66007.135961]  [<ffffffff810e587d>] ? vm_unmap_aliases+0x151/0x160
> >>[66007.135969]  [<ffffffff81035695>] change_page_attr_set_clr+0x177/0x360
> >>[66007.135976]  [<ffffffff8103597a>] change_page_attr_set+0x27/0x29
> >>[66007.135983]  [<ffffffff810348e2>] ? pte_flags+0x9/0x18
> >>[66007.135990]  [<ffffffff81035c01>] do_pageattr_test+0x285/0x4b1
> >>[66007.135998]  [<ffffffff8103597c>] ? do_pageattr_test+0x0/0x4b1
> >>[66007.136097]  [<ffffffff8106a9c3>] kthread+0x69/0x71
> >>[66007.136105]  [<ffffffff81013daa>] child_rip+0xa/0x20
> >>[66007.136112]  [<ffffffff81012ee6>] ? int_ret_from_sys_call+0x7/0x1b
> >>[66007.136119]  [<ffffffff81013726>] ? retint_restore_args+0x5/0x6
> >>[66007.136127]  [<ffffffff81013da0>] ? child_rip+0x0/0x20

.. snip..
> >>(XEN) HVM43: Booting from 0000:7c00
> >>(XEN) HVM44: Press F12 for boot menu.
> >>(XEN) HVM44:
> >>(XEN) HVM44: Booting from Hard Disk...
> >>(XEN) HVM44: Booting from 0000:7c00
> >>(XEN) HVM44: int13_harddisk: function 42. LBA out of range
> >>(XEN) stdvga.c:151:d43 leaving stdvga
> >>(XEN) stdvga.c:147:d43 entering stdvga and caching modes
> >>(XEN) irq.c:243: Dom43 PCI link 0 changed 5 ->  0
> >>(XEN) irq.c:243: Dom43 PCI link 1 changed 10 ->  0
> >>(XEN) irq.c:243: Dom43 PCI link 2 changed 11 ->  0
> >>(XEN) irq.c:243: Dom43 PCI link 3 changed 5 ->  0
> >>(XEN) stdvga.c:151:d43 leaving stdvga
> >>(XEN) stdvga.c:151:d42 leaving stdvga
> >>(XEN) mm.c:3617:d0 PTE entry 81244b for address ffff88007caa0000 doesn't 
> >>match frame 621c4b
> >>(XEN) mm.c:3617:d0 PTE entry 812bed for address ffff88007caa1000 doesn't 
> >>match frame 6217ed
> >>(XEN) mm.c:3617:d0 PTE entry 812426 for address ffff88007caa2000 doesn't 
> >>match frame 621c26
> >>(XEN) mm.c:3617:d0 PTE entry 812590 for address ffff88007caa3000 doesn't 
> >>match frame 621d90
> >>(XEN) mm.c:3617:d0 PTE entry 812591 for address ffff88007caa4000 doesn't 
> >>match frame 621d91
> >>(XEN) mm.c:3617:d0 PTE entry 812492 for address ffff88007caa5000 doesn't 
> >>match frame 621c92
> >>(XEN) mm.c:3617:d0 PTE entry 812493 for address ffff88007caa6000 doesn't 
> >>match frame 621c93
> >>(XEN) mm.c:3617:d0 PTE entry 8124ca for address ffff88007caa7000 doesn't 
> >>match frame 621cca
> >>(XEN) mm.c:3617:d0 PTE entry 8124cb for address ffff88007caa8000 doesn't 
> >>match frame 621ccb
> >>(XEN) mm.c:3617:d0 PTE entry 80e8b0 for address ffff88007caa9000 doesn't 
> >>match frame 6258b0
> >>(XEN) mm.c:3617:d0 PTE entry 80e8b1 for address ffff88007caaa000 doesn't 
> >>match frame 6258b1
> >>(XEN) mm.c:3617:d0 PTE entry 803fe2 for address ffff88007caab000 doesn't 
> >>match frame 5cfde2
> >>(XEN) mm.c:3617:d0 PTE entry 80b3fd for address ffff88007ca99000 doesn't 
> >>match frame 46b1fd
> >>(XEN) mm.c:3617:d0 PTE entry 80b3fe for address ffff88007ca9a000 doesn't 
> >>match frame 46b1fe
> >>(XEN) mm.c:3617:d0 PTE entry 80ac10 for address ffff88007ca9b000 doesn't 
> >>match frame 46b610
> >>(XEN) mm.c:3617:d0 PTE entry 80c01e for address ffff88007ca9c000 doesn't 
> >>match frame 46a21e
> >>(XEN) mm.c:3617:d0 PTE entry 80ab16 for address ffff88007ca9d000 doesn't 
> >>match frame 46b916
> >>(XEN) mm.c:3617:d0 PTE entry 80b0f6 for address ffff88007ca9e000 doesn't 
> >>match frame 46b2f6
> >>(XEN) mm.c:3617:d0 PTE entry 809c8c for address ffff88007ca9f000 doesn't 
> >>match frame 46c68c
> >>(XEN) mm.c:3617:d0 PTE entry 8017e0 for address ffff88007cb9f000 doesn't 
> >>match frame 5b19e0
> >>(XEN) mm.c:3617:d0 PTE entry 8017e1 for address ffff88007cba0000 doesn't 
> >>match frame 5b19e1
> >>(XEN) mm.c:3617:d0 PTE entry 801fc4 for address ffff88007cba1000 doesn't 
> >>match frame 5b11c4
> >>(XEN) mm.c:3617:d0 PTE entry 801fc5 for address ffff88007cba2000 doesn't 
> >>match frame 5b11c5
> >>(XEN) mm.c:3617:d0 PTE entry 801f2a for address ffff88007cba3000 doesn't 
> >>match frame 5b112a
> >>(XEN) mm.c:3617:d0 PTE entry 801f2b for address ffff88007cba4000 doesn't 
> >>match frame 5b112b
> >>(XEN) mm.c:3617:d0 PTE entry 801ee8 for address ffff88007cba5000 doesn't 
> >>match frame 5b10e8
> >>(XEN) mm.c:3617:d0 PTE entry 801ee9 for address ffff88007cba6000 doesn't 
> >>match frame 5b10e9
> >>(XEN) mm.c:3617:d0 PTE entry 803fde for address ffff88007cba7000 doesn't 
> >>match frame 5af1de
> >>(XEN) mm.c:3617:d0 PTE entry 8120ec for address ffff88007cb9e000 doesn't 
> >>match frame 9660ec
> >>(XEN) mm.c:3617:d0 PTE entry 8120ed for address ffff88007cb9f000 doesn't 
> >>match frame 9660ed
> >>(XEN) mm.c:3617:d0 PTE entry 810e0a for address ffff88007cba0000 doesn't 
> >>match frame 96720a
> >>(XEN) mm.c:3617:d0 PTE entry 810e0b for address ffff88007cba1000 doesn't 
> >>match frame 96720b
> >>(XEN) mm.c:3617:d0 PTE entry 81080e for address ffff88007cba2000 doesn't 
> >>match frame 96780e
> >>(XEN) mm.c:3617:d0 PTE entry 81080f for address ffff88007cba3000 doesn't 
> >>match frame 96780f
> >>(XEN) mm.c:3617:d0 PTE entry 80ef3e for address ffff88007cba4000 doesn't 
> >>match frame 96933e
> >>(XEN) mm.c:3617:d0 PTE entry 802fd7 for address ffff88007c433000 doesn't 
> >>match frame 2111d7
> >>(XEN) mm.c:3617:d0 PTE entry 805131 for address ffff88007c434000 doesn't 
> >>match frame 20ef31
> >>(XEN) mm.c:3617:d0 PTE entry 80c1ea for address ffff88007c435000 doesn't 
> >>match frame 207fea
> >>(XEN) mm.c:3617:d0 PTE entry 814ae9 for address ffff88007c9b0000 doesn't 
> >>match frame 8866e9
> >>(XEN) mm.c:3617:d0 PTE entry 8113b9 for address ffff88007ca20000 doesn't 
> >>match frame 9277b9
> >>(XEN) mm.c:3617:d0 PTE entry 808ab2 for address ffff88007ca21000 doesn't 
> >>match frame 92feb2
> >>(XEN) mm.c:3617:d0 PTE entry 803bb3 for address ffff88007ca22000 doesn't 
> >>match frame 934fb3
> >>(XEN) mm.c:3617:d0 PTE entry 814747 for address ffff88007ca23000 doesn't 
> >>match frame 924347
> >>(XEN) mm.c:3617:d0 PTE entry 819873 for address ffff88007ca24000 doesn't 
> >>match frame 91f073
> >>(XEN) mm.c:3617:d0 PTE entry 80302c for address ffff88007ca25000 doesn't 
> >>match frame 93582c
> >>(XEN) mm.c:3617:d0 PTE entry 81b75c for address ffff88007ca26000 doesn't 
> >>match frame 91d35c
> >>(XEN) mm.c:3617:d0 PTE entry c5fd0b for address ffff88007ca86000 doesn't 
> >>match frame 95830b
> >>(XEN) mm.c:3617:d0 PTE entry 81a093 for address ffff88007ca87000 doesn't 
> >>match frame 9bde93
> >>(XEN) mm.c:3617:d0 PTE entry 815f11 for address ffff88007ca88000 doesn't 
> >>match frame 942111
> >>(XEN) mm.c:3617:d0 PTE entry 815bc5 for address ffff88007ca89000 doesn't 
> >>match frame 9425c5
> >>(XEN) mm.c:3617:d0 PTE entry 816875 for address ffff88007cb9b000 doesn't 
> >>match frame 59c675
> >>(XEN) mm.c:3617:d0 PTE entry 8158a8 for address ffff88007cb9c000 doesn't 
> >>match frame 59d6a8
> >>(XEN) mm.c:3617:d0 PTE entry 82fa1c for address ffff88007c926000 doesn't 
> >>match frame 5e321c
> >>(XEN) mm.c:3617:d0 PTE entry 82655e for address ffff88007c927000 doesn't 
> >>match frame 5ec95e
> >>(XEN) mm.c:3617:d0 PTE entry c5ce72 for address ffff88007c926000 doesn't 
> >>match frame 95b072
> >>(XEN) mm.c:3617:d0 PTE entry c5cea9 for address ffff88007c927000 doesn't 
> >>match frame 95b0a9
> >>(XEN) mm.c:2399:d0 Bad type (saw 1c00000000000002 != exp 7000000000000000) 
> >>for mfn 800569 (pfn 4569)
> >>(XEN) mm.c:878:d0 Error getting mfn 800569 (pfn 4569) from L1 entry 
> >>8010000800569267 for l1e_owner=0, pg_owner=0
> >>(XEN) mm.c:4664:d0 ptwr_emulate: could not get_page_from_l1e()
> >>(XEN) mm.c:3617:d0 PTE entry 80e284 for address ffff88007ca89000 doesn't 
> >>match frame 468084
> >>(XEN) mm.c:3617:d0 PTE entry 817918 for address ffff88007ca8a000 doesn't 
> >>match frame 47f118
> >>(XEN) common.c:3722:d0 tracking VRAM f0000 - f0160
> >>(XEN) common.c:3722:d0 tracking VRAM f0000 - f0160

So to reproduce this, what should I be doing? Can you give me a rough idea of 
what
your guests are doing, how big the NFS files are, etc?


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