* kernel BUG at mm/mempolicy.c:1204!
@ 2013-12-12 22:51 ` Dave Jones
0 siblings, 0 replies; 3+ messages in thread
From: Dave Jones @ 2013-12-12 22:51 UTC (permalink / raw
To: linux-mm; +Cc: Linux Kernel
Just hit this with my fuzz tester.
kernel BUG at mm/mempolicy.c:1204!
invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
CPU: 3 PID: 7056 Comm: trinity-child3 Not tainted 3.13.0-rc3+ #2
task: ffff8801ca5295d0 ti: ffff88005ab20000 task.ti: ffff88005ab20000
RIP: 0010:[<ffffffff8119f200>] [<ffffffff8119f200>] new_vma_page+0x70/0x90
RSP: 0000:ffff88005ab21db0 EFLAGS: 00010246
RAX: fffffffffffffff2 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000008040075 RSI: ffff8801c3d74600 RDI: ffffea00079a8b80
RBP: ffff88005ab21dc8 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffff2
R13: ffffea00079a8b80 R14: 0000000000400000 R15: 0000000000400000
FS: 00007ff49c6f4740(0000) GS:ffff880244e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff49c68f994 CR3: 000000005a205000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
ffffea00079a8b80 ffffea00079a8bc0 ffffea00079a8ba0 ffff88005ab21e50
ffffffff811adc7a 0000000000000000 ffff8801ca5295d0 0000000464e224f8
0000000000000000 0000000000000002 0000000000000000 ffff88020ce75c00
Call Trace:
[<ffffffff811adc7a>] migrate_pages+0x12a/0x850
[<ffffffff8119f190>] ? alloc_pages_vma+0x1b0/0x1b0
[<ffffffff8119fa13>] SYSC_mbind+0x513/0x6a0
[<ffffffff810aa7de>] ? lock_release_holdtime.part.29+0xee/0x170
[<ffffffff8119fbae>] SyS_mbind+0xe/0x10
[<ffffffff817626a9>] ia32_do_call+0x13/0x13
Code: 85 c0 75 2f 4c 89 e1 48 89 da 31 f6 bf da 00 02 00 65 44 8b 04 25 08 f7 1c 00 e8 ec fd ff ff 5b 41 5c 41 5d 5d c3 0f 1f 44 00 00 <0f> 0b 66 0f 1f 44 00 00 4c 89 e6 48 89 df ba 01 00 00 00 e8 48
RIP [<ffffffff8119f200>] new_vma_page+0x70/0x90
RSP <ffff88005ab21db0>
That's..
1200 /*
1201 * queue_pages_range() confirms that @page belongs to some vma,
1202 * so vma shouldn't be NULL.
1203 */
1204 BUG_ON(!vma);
1205
^ permalink raw reply [flat|nested] 3+ messages in thread
* kernel BUG at mm/mempolicy.c:1204!
@ 2013-12-12 22:51 ` Dave Jones
0 siblings, 0 replies; 3+ messages in thread
From: Dave Jones @ 2013-12-12 22:51 UTC (permalink / raw
To: linux-mm; +Cc: Linux Kernel
Just hit this with my fuzz tester.
kernel BUG at mm/mempolicy.c:1204!
invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
CPU: 3 PID: 7056 Comm: trinity-child3 Not tainted 3.13.0-rc3+ #2
task: ffff8801ca5295d0 ti: ffff88005ab20000 task.ti: ffff88005ab20000
RIP: 0010:[<ffffffff8119f200>] [<ffffffff8119f200>] new_vma_page+0x70/0x90
RSP: 0000:ffff88005ab21db0 EFLAGS: 00010246
RAX: fffffffffffffff2 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000008040075 RSI: ffff8801c3d74600 RDI: ffffea00079a8b80
RBP: ffff88005ab21dc8 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffff2
R13: ffffea00079a8b80 R14: 0000000000400000 R15: 0000000000400000
FS: 00007ff49c6f4740(0000) GS:ffff880244e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff49c68f994 CR3: 000000005a205000 CR4: 00000000001407e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
ffffea00079a8b80 ffffea00079a8bc0 ffffea00079a8ba0 ffff88005ab21e50
ffffffff811adc7a 0000000000000000 ffff8801ca5295d0 0000000464e224f8
0000000000000000 0000000000000002 0000000000000000 ffff88020ce75c00
Call Trace:
[<ffffffff811adc7a>] migrate_pages+0x12a/0x850
[<ffffffff8119f190>] ? alloc_pages_vma+0x1b0/0x1b0
[<ffffffff8119fa13>] SYSC_mbind+0x513/0x6a0
[<ffffffff810aa7de>] ? lock_release_holdtime.part.29+0xee/0x170
[<ffffffff8119fbae>] SyS_mbind+0xe/0x10
[<ffffffff817626a9>] ia32_do_call+0x13/0x13
Code: 85 c0 75 2f 4c 89 e1 48 89 da 31 f6 bf da 00 02 00 65 44 8b 04 25 08 f7 1c 00 e8 ec fd ff ff 5b 41 5c 41 5d 5d c3 0f 1f 44 00 00 <0f> 0b 66 0f 1f 44 00 00 4c 89 e6 48 89 df ba 01 00 00 00 e8 48
RIP [<ffffffff8119f200>] new_vma_page+0x70/0x90
RSP <ffff88005ab21db0>
That's..
1200 /*
1201 * queue_pages_range() confirms that @page belongs to some vma,
1202 * so vma shouldn't be NULL.
1203 */
1204 BUG_ON(!vma);
1205
--
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: kernel BUG at mm/mempolicy.c:1204!
2013-12-12 22:51 ` Dave Jones
(?)
@ 2013-12-13 1:33 ` Wanpeng Li
-1 siblings, 0 replies; 3+ messages in thread
From: Wanpeng Li @ 2013-12-13 1:33 UTC (permalink / raw
To: Dave Jones
Cc: Naoya Horiguchi, Lee Schermerhorn, Christoph Lameter, linux-mm,
Linux Kernel
[-- Attachment #1: Type: text/plain, Size: 2395 bytes --]
Hi Dave,
On Thu, Dec 12, 2013 at 05:51:19PM -0500, Dave Jones wrote:
>Just hit this with my fuzz tester.
>
>kernel BUG at mm/mempolicy.c:1204!
>invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
>CPU: 3 PID: 7056 Comm: trinity-child3 Not tainted 3.13.0-rc3+ #2
>task: ffff8801ca5295d0 ti: ffff88005ab20000 task.ti: ffff88005ab20000
>RIP: 0010:[<ffffffff8119f200>] [<ffffffff8119f200>] new_vma_page+0x70/0x90
>RSP: 0000:ffff88005ab21db0 EFLAGS: 00010246
>RAX: fffffffffffffff2 RBX: 0000000000000000 RCX: 0000000000000000
>RDX: 0000000008040075 RSI: ffff8801c3d74600 RDI: ffffea00079a8b80
>RBP: ffff88005ab21dc8 R08: 0000000000000004 R09: 0000000000000000
>R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffff2
>R13: ffffea00079a8b80 R14: 0000000000400000 R15: 0000000000400000
>FS: 00007ff49c6f4740(0000) GS:ffff880244e00000(0000) knlGS:0000000000000000
>CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>CR2: 00007ff49c68f994 CR3: 000000005a205000 CR4: 00000000001407e0
>DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
>DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
>Stack:
> ffffea00079a8b80 ffffea00079a8bc0 ffffea00079a8ba0 ffff88005ab21e50
> ffffffff811adc7a 0000000000000000 ffff8801ca5295d0 0000000464e224f8
> 0000000000000000 0000000000000002 0000000000000000 ffff88020ce75c00
>Call Trace:
> [<ffffffff811adc7a>] migrate_pages+0x12a/0x850
> [<ffffffff8119f190>] ? alloc_pages_vma+0x1b0/0x1b0
> [<ffffffff8119fa13>] SYSC_mbind+0x513/0x6a0
> [<ffffffff810aa7de>] ? lock_release_holdtime.part.29+0xee/0x170
> [<ffffffff8119fbae>] SyS_mbind+0xe/0x10
> [<ffffffff817626a9>] ia32_do_call+0x13/0x13
>Code: 85 c0 75 2f 4c 89 e1 48 89 da 31 f6 bf da 00 02 00 65 44 8b 04 25 08 f7 1c 00 e8 ec fd ff ff 5b 41 5c 41 5d 5d c3 0f 1f 44 00 00 <0f> 0b 66 0f 1f 44 00 00 4c 89 e6 48 89 df ba 01 00 00 00 e8 48
>RIP [<ffffffff8119f200>] new_vma_page+0x70/0x90
> RSP <ffff88005ab21db0>
>
>
>That's..
>
>1200 /*
>1201 * queue_pages_range() confirms that @page belongs to some vma,
>1202 * so vma shouldn't be NULL.
>1203 */
>1204 BUG_ON(!vma);
>1205
>
How about this one?
>--
>To unsubscribe, send a message with 'unsubscribe linux-mm' in
>the body to majordomo@kvack.org. For more info on Linux MM,
>see: http://www.linux-mm.org/ .
>Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-12-12 22:51 kernel BUG at mm/mempolicy.c:1204! Dave Jones
2013-12-12 22:51 ` Dave Jones
2013-12-13 1:33 ` Wanpeng Li
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