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Date:	Wed, 19 Nov 2014 10:17:10 +0800
From:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
Subject: [LKP] [mm] kernel BUG at fs/xfs/xfs_aops.c:1069!

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-numa-protnone-v1r7
commit 5733e3f48a1f2c9ea4eb1eba38c06f65a48891a4 ("mm: Convert p[te|md]_mknonnuma and remaining page table manipulations")


+------------------------------------------+------------+------------+
|                                          | 0f455f9110 | 5733e3f48a |
+------------------------------------------+------------+------------+
| boot_successes                           | 37         | 10         |
| early-boot-hang                          | 1          |            |
| boot_failures                            | 0          | 4          |
| kernel_BUG_at_fs/xfs/xfs_aops.c          | 0          | 4          |
| invalid_opcode                           | 0          | 4          |
| RIP:xfs_vm_writepage                     | 0          | 4          |
| Kernel_panic-not_syncing:Fatal_exception | 0          | 4          |
| backtrace:vfs_fsync_range                | 0          | 4          |
| backtrace:SyS_msync                      | 0          | 4          |
+------------------------------------------+------------+------------+


2014-11-14 12:47:11 truncate /tmp/vm-scalability/sparse-msync-mt -s 67407118336
2014-11-14 12:47:11 ./usemem --runtime 300 -S -t 56 -f /tmp/vm-scalability/sparse-msync-mt -F --prealloc --open-rw 601849270
[  136.721372] ------------[ cut here ]------------
[  136.726793] kernel BUG at fs/xfs/xfs_aops.c:1069!
[  136.733766] invalid opcode: 0000 [#1] SMP 
[  136.738504] Modules linked in: loop ipmi_watchdog snd_pcm snd_timer snd soundcore pcspkr mgag200 syscopyarea sysfillrect sysimgblt ttm drm_kms_helper sb_edac drm edac_core i2c_i801 wmi ipmi_si ipmi_msghandler acpi_power_meter
[  136.761454] CPU: 5 PID: 7251 Comm: usemem Not tainted 3.18.0-rc4-wl-ath-g788be579 #1
[  136.770312] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.TP2.0025.R02.1403131625 03/13/2014
[  136.781911] task: ffff880852ab3ac0 ti: ffff88081db58000 task.ti: ffff88081db58000
[  136.790512] RIP: 0010:[<ffffffff8132b77c>]  [<ffffffff8132b77c>] xfs_vm_writepage+0x5fc/0x680
[  136.800315] RSP: 0018:ffff88081db5bba8  EFLAGS: 00010246
[  136.806515] RAX: 0020151e0000002d RBX: ffff88103c6202f8 RCX: 000000000000000c
[  136.814768] RDX: ffff88103c6202f8 RSI: ffff88081db5be40 RDI: ffffea002062e0c0
[  136.823032] RBP: ffff88081db5bc58 R08: 0000000000000002 R09: ffff88087ffda000
[  136.831302] R10: 0000000000000035 R11: 0000000000000000 R12: ffff88103c6201a8
[  136.839580] R13: 0000000000022951 R14: ffff88081db5be40 R15: ffffea002062e0c0
[  136.847865] FS:  00007f41ec7d4700(0000) GS:ffff88085f4a0000(0000) knlGS:0000000000000000
[  136.857235] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  136.863994] CR2: 00007f41e8fcda08 CR3: 000000083bc17000 CR4: 00000000001407e0
[  136.872320] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  136.880650] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  136.888984] Stack:
[  136.891595]  0000000fb1c70000 ffff88103c6202f8 ffff88081db5be40 00007f4100000001
[  136.900285]  0000000100000001 ffffea002062e0c0 0000000000001000 0000000022952000
[  136.908988]  ffff88081db5bc38 ffffffff81329e28 ffff88081db5bc58 0000000000000000
[  136.917701] Call Trace:
[  136.920846]  [<ffffffff81329e28>] ? xfs_vm_set_page_dirty+0x138/0x190
[  136.928476]  [<ffffffff81169e47>] __writepage+0x17/0x50
[  136.934751]  [<ffffffff8116a86c>] write_cache_pages+0x21c/0x4f0
[  136.941809]  [<ffffffff8188c57e>] ? __wait_on_bit+0x7e/0x90
[  136.948485]  [<ffffffff81169e30>] ? global_dirtyable_memory+0x50/0x50
[  136.956144]  [<ffffffff8116ab80>] generic_writepages+0x40/0x60
[  136.963118]  [<ffffffff8132acb3>] xfs_vm_writepages+0x43/0x50
[  136.970007]  [<ffffffff8116c77e>] do_writepages+0x1e/0x30
[  136.976518]  [<ffffffff81160c89>] __filemap_fdatawrite_range+0x59/0x60
[  136.984297]  [<ffffffff81160d8a>] filemap_write_and_wait_range+0x2a/0x70
[  136.992281]  [<ffffffff81335cb7>] xfs_file_fsync+0x57/0x1d0
[  136.999015]  [<ffffffff8120bdfb>] vfs_fsync_range+0x1b/0x30
[  137.005749]  [<ffffffff8119978d>] SyS_msync+0x1ed/0x250
[  137.012104]  [<ffffffff818912a9>] system_call_fastpath+0x12/0x17
[  137.019341] Code: 8d 78 08 89 ca 48 c7 00 00 00 00 00 48 c7 44 10 f8 00 00 00 00 48 83 e7 f8 48 29 f8 01 c1 31 c0 c1 e9 03 f3 48 ab e9 44 ff ff ff <0f> 0b 31 c0 e9 5b fd ff ff 4d 85 f6 74 0e 4c 89 f7 89 45 98 e8 
[  137.042173] RIP  [<ffffffff8132b77c>] xfs_vm_writepage+0x5fc/0x680
[  137.049667]  RSP <ffff88081db5bba8>
[  137.054165] ---[ end trace f24aad15132e6627 ]---
[  137.059929] Kernel panic - not syncing: Fatal exception


	--yliu

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