Public bug reported:
Ubuntu 12.04 LTS (GNU/Linux 3.2.0-23-virtual x86_64)
Running Ubuntu 12.04 on 64bit EC2 instance... occasionally the instance
becomes unresponsive and requires a reboot. Here is the System Log from
the EC2 console:
[16357652.971938] BUG: Bad page state in process node pfn:8e9d9
[16357652.971947] page:ffffea00023a7640 count:0 mapcount:-127 mapping:
(null) index:0x7f89dc026
[16357652.971954] page flags: 0x100000000000000()
[16357652.971960] Modules linked in: isofs acpiphp
[16357652.971970] Pid: 14135, comm: node Tainted: G B D
3.2.0-23-virtual #36-Ubuntu
[16357652.971976] Call Trace:
[16357652.971988] [<ffffffff8111c19f>] bad_page.part.61+0x9f/0xf0
[16357652.971994] [<ffffffff8111c208>] bad_page+0x18/0x30
[16357652.972000] [<ffffffff8111d3c5>] prep_new_page+0x1d5/0x1e0
[16357652.972008] [<ffffffff8100aa32>] ? check_events+0x12/0x20
[16357652.972017] [<ffffffff8113204f>] ? __inc_zone_state+0x5f/0x70
[16357652.972023] [<ffffffff8111d59f>] get_page_from_freelist+0x1cf/0x540
[16357652.972031] [<ffffffff8100a25d>] ? xen_force_evtchn_callback+0xd/0x10
[16357652.972038] [<ffffffff8111dba9>] __alloc_pages_nodemask+0x109/0x800
[16357652.972044] [<ffffffff81005001>] ? xen_mc_extend_args+0x111/0x150
[16357652.972051] [<ffffffff8100a25d>] ? xen_force_evtchn_callback+0xd/0x10
[16357652.972059] [<ffffffff8116b6c0>] ? __mem_cgroup_commit_charge+0x70/0xc0
[16357652.972066] [<ffffffff81006739>] ? pte_mfn_to_pfn+0x89/0xf0
[16357652.972075] [<ffffffff8115672a>] alloc_pages_vma+0x9a/0x150
[16357652.972081] [<ffffffff81136f5c>] do_anonymous_page.isra.38+0x7c/0x2f0
[16357652.972088] [<ffffffff8113abc1>] handle_pte_fault+0x1e1/0x200
[16357652.972094] [<ffffffff810067be>] ? xen_pmd_val+0xe/0x10
[16357652.972100] [<ffffffff81005209>] ?
__raw_callee_save_xen_pmd_val+0x11/0x1e
[16357652.972108] [<ffffffff8113af98>] handle_mm_fault+0x1f8/0x350
[16357652.972116] [<ffffffff81658ddb>] do_page_fault+0x14b/0x520
[16357652.972122] [<ffffffff81140e08>] ? do_mmap_pgoff+0x348/0x360
[16357652.972129] [<ffffffff81140f75>] ? sys_mmap_pgoff+0x155/0x230
[16357652.972135] [<ffffffff81655a35>] page_fault+0x25/0x30
[16357652.972141] BUG: Bad page state in process node pfn:593da
[16357652.972146] page:ffffea000164f680 count:0 mapcount:-127 mapping:
(null) index:0x7f89dc027
[16357652.972208] page flags: 0x100000000000000()
[16357652.972213] Modules linked in: isofs acpiphp
[16357652.972221] Pid: 14135, comm: node Tainted: G B D
3.2.0-23-virtual #36-Ubuntu
[16357652.972227] Call Trace:
[16357652.972232] [<ffffffff8111c19f>] bad_page.part.61+0x9f/0xf0
[16357652.972238] [<ffffffff8111c208>] bad_page+0x18/0x30
[16357652.972244] [<ffffffff8111d3c5>] prep_new_page+0x1d5/0x1e0
[16357652.972251] [<ffffffff8100aa32>] ? check_events+0x12/0x20
[16357652.972257] [<ffffffff8113204f>] ? __inc_zone_state+0x5f/0x70
[16357652.972264] [<ffffffff8111d59f>] get_page_from_freelist+0x1cf/0x540
[16357652.972271] [<ffffffff8100a25d>] ? xen_force_evtchn_callback+0xd/0x10
[16357652.972278] [<ffffffff8111dba9>] __alloc_pages_nodemask+0x109/0x800
[16357652.972284] [<ffffffff81005001>] ? xen_mc_extend_args+0x111/0x150
[16357652.972291] [<ffffffff8100a25d>] ? xen_force_evtchn_callback+0xd/0x10
[16357652.972298] [<ffffffff8116b6c0>] ? __mem_cgroup_commit_charge+0x70/0xc0
[16357652.972305] [<ffffffff81006739>] ? pte_mfn_to_pfn+0x89/0xf0
[16357652.972311] [<ffffffff8115672a>] alloc_pages_vma+0x9a/0x150
[16357652.972318] [<ffffffff81136f5c>] do_anonymous_page.isra.38+0x7c/0x2f0
[16357652.972325] [<ffffffff8113abc1>] handle_pte_fault+0x1e1/0x200
[16357652.972331] [<ffffffff810067be>] ? xen_pmd_val+0xe/0x10
[16357652.972337] [<ffffffff81005209>] ?
__raw_callee_save_xen_pmd_val+0x11/0x1e
[16357652.972345] [<ffffffff8113af98>] handle_mm_fault+0x1f8/0x350
[16357652.972351] [<ffffffff81658ddb>] do_page_fault+0x14b/0x520
[16357652.972358] [<ffffffff81140e08>] ? do_mmap_pgoff+0x348/0x360
[16357652.972364] [<ffffffff81140f75>] ? sys_mmap_pgoff+0x155/0x230
[16357652.972371] [<ffffffff81655a35>] page_fault+0x25/0x30
[16357652.972377] BUG: Bad page state in process node pfn:58a7f
[16357652.972382] page:ffffea0001629fc0 count:0 mapcount:-127 mapping:
(null) index:0x7f89dc028
[16357652.972389] page flags: 0x100000000000000()
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: precise
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https://bugs.launchpad.net/bugs/1007082
Title:
BUG: Bad page state in process node pfn:8e9d9
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