From: Matthew Wilcox <mawilcox@microsoft.com>
To: lkp@lists.01.org
Subject: Re: 2569321dd4 ("page cache: Convert page_cache_tree_delete to xarray"): WARNING: CPU: 0 PID: 137 at mm/shmem.c:1084 shmem_evict_inode
Date: Fri, 24 Nov 2017 16:25:12 +0000 [thread overview]
Message-ID: <MWHPR21MB0845F1EBD0A53FBC5F961FF0CB260@MWHPR21MB0845.namprd21.prod.outlook.com> (raw)
In-Reply-To: <20171124040003.t3eydwgwtrujw34g@wfg-t540p.sh.intel.com>
[-- Attachment #1: Type: text/plain, Size: 11178 bytes --]
Actually, I rebased this branch to fix a commit 18 (!) commits earlier than the one which was flagged here, which was where the real problem lay.
Thank you so much for 0-day; you're finding so many bugs for me!
> -----Original Message-----
> From: Fengguang Wu [mailto:fengguang.wu(a)intel.com]
> Sent: Thursday, November 23, 2017 11:00 PM
> To: Matthew Wilcox <mawilcox@microsoft.com>
> Cc: wfg(a)linux.intel.com; LKP <lkp@01.org>
> Subject: 2569321dd4 ("page cache: Convert page_cache_tree_delete to
> xarray"): WARNING: CPU: 0 PID: 137 at mm/shmem.c:1084
> shmem_evict_inode
>
> Hi Matthew,
>
> This looks like an interim error that hurts bisect.
> It no longer show up in your branch HEAD.
>
> git://git.infradead.org/users/willy/linux-dax.git xarray-2017-11-20
>
> commit 2569321dd461e33b2d731e8324bdae5b7bc7da4c
> Author: Matthew Wilcox <mawilcox@microsoft.com>
> AuthorDate: Tue Nov 21 09:17:59 2017 -0500
> Commit: Matthew Wilcox <mawilcox@microsoft.com>
> CommitDate: Tue Nov 21 12:16:34 2017 -0500
>
> page cache: Convert page_cache_tree_delete to xarray
>
> The code is slightly shorter and simpler.
>
> Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
>
> 5b41d2aaaa page cache: Use xarray for adding pages
> 2569321dd4 page cache: Convert page_cache_tree_delete to xarray
> 2c8c7e65b8 mm: Convert page-writeback to XArray
> +-------------------------------------------------------+------------+------------+------------+
> | | 5b41d2aaaa | 2569321dd4 | 2c8c7e65b8 |
> +-------------------------------------------------------+------------+------------+------------+
> | boot_successes | 30 | 0 | 10 |
> | boot_failures | 5 | 15 | 9 |
> | IP-Config:Auto-configuration_of_network_failed | 4 | 4 | 8
> |
> | WARNING:at_drivers/pci/pci-sysfs.c:#pci_mmap_resource | 1 | 0 |
> 1 |
> | EIP:pci_mmap_resource | 1 | 0 | 1 |
> | WARNING:at_mm/shmem.c:#shmem_evict_inode | 0 | 11 |
> |
> | EIP:shmem_evict_inode | 0 | 11 | |
> | kernel_BUG_at_fs/inode.c | 0 | 11 | |
> | invalid_opcode:#[##] | 0 | 11 | |
> | EIP:clear_inode | 0 | 11 | |
> | Kernel_panic-not_syncing:Fatal_exception | 0 | 11 |
> |
> +-------------------------------------------------------+------------+------------+------------+
>
> [ 4.204804] Write protecting the kernel text: 21284k
> [ 4.205581] Write protecting the kernel read-only data: 3784k
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: No such file or directory
> Starting udev
> /etc/rcS.d/S03udev: line 72: /proc/sys/kernel/hotplug: No such file or directory
> [ 4.345797] WARNING: CPU: 0 PID: 137 at mm/shmem.c:1084
> shmem_evict_inode+0x2c2/0x2d0
> [ 4.347205] Modules linked in:
> [ 4.347716] CPU: 0 PID: 137 Comm: udevd Not tainted 4.14.0-12982-
> g2569321 #1
> [ 4.348666] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> 1.10.2-1 04/01/2014
> [ 4.349843] task: cd70e640 task.stack: cd748000
> [ 4.350545] EIP: shmem_evict_inode+0x2c2/0x2d0
> [ 4.351177] EFLAGS: 00010246 CPU: 0
> [ 4.351769] EAX: 00000008 EBX: cd6ff688 ECX: 00000001 EDX: cd6ff678
> [ 4.352621] ESI: cd6ff688 EDI: cd6ff690 EBP: cd749e78 ESP: cd749e60
> [ 4.353444] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> [ 4.354260] CR0: 80050033 CR2: b7fa3000 CR3: 0d73d000 CR4: 000406d0
> [ 4.355085] Call Trace:
> [ 4.355514] evict+0xe0/0x3c0
> [ 4.356017] iput+0x25a/0x380
> [ 4.356513] dentry_unlink_inode+0x13d/0x250
> [ 4.357141] __dentry_kill+0x190/0x340
> [ 4.357724] dput+0x315/0x4b0
> [ 4.358232] SYSC_renameat2+0x7e8/0x900
> [ 4.358800] ? d_instantiate+0x6b/0xc0
> [ 4.359365] SyS_rename+0x34/0x50
> [ 4.359921] do_int80_syscall_32+0x85/0x250
> [ 4.360580] entry_INT80_32+0x2a/0x2a
> [ 4.361142] EIP: 0x47ecaf71
> [ 4.361603] EFLAGS: 00000246 CPU: 0
> [ 4.362168] EAX: ffffffda EBX: bf88f0ce ECX: 08ccb9f8 EDX: bf88f0ce
> [ 4.362986] ESI: 00002180 EDI: 00000000 EBP: 08ccb9f8 ESP: bf88f07c
> [ 4.363819] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
> [ 4.364579] Code: 5f f0 89 5f f4 e8 2f 72 30 01 83 05 c0 45 3e d0 01 83 15 c4
> 45 3e d0 00 e9 78 fd ff ff 83 05 d0 45 3e d0 01 83 15 d4 45 3e d0 00 <0f> ff e9
> e9 fd ff ff 8d b4 26 00 00 00 00 55 89 e5 83 ec 38 83
> [ 4.366962] ---[ end trace 51740c2df8f58aa9 ]---
> [ 4.367660] ------------[ cut here ]------------
> [ 4.367660] ------------[ cut here ]------------
> [ 4.368344] kernel BUG at fs/inode.c:506!
> [ 4.369124] invalid opcode: 0000 [#1]
> [ 4.369673] Modules linked in:
> [ 4.370223] CPU: 0 PID: 137 Comm: udevd Tainted: G W 4.14.0-
> 12982-g2569321 #1
> [ 4.371405] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> 1.10.2-1 04/01/2014
> [ 4.372635] task: cd70e640 task.stack: cd748000
> [ 4.373278] EIP: clear_inode+0xde/0x190
> [ 4.373870] EFLAGS: 00010046 CPU: 0
> [ 4.374435] EAX: cd70e640 EBX: cd6ff690 ECX: 00000000 EDX: 00000001
> [ 4.375255] ESI: cd6ff688 EDI: cd6ff690 EBP: cd749e58 ESP: cd749e54
> [ 4.376154] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> [ 4.376879] CR0: 80050033 CR2: b7fa3000 CR3: 0d73d000 CR4: 000406d0
> [ 4.377735] Call Trace:
> [ 4.378193] shmem_evict_inode+0x105/0x2d0
> [ 4.378793] evict+0xe0/0x3c0
> [ 4.379278] iput+0x25a/0x380
> [ 4.379770] dentry_unlink_inode+0x13d/0x250
> [ 4.380417] __dentry_kill+0x190/0x340
> [ 4.381008] dput+0x315/0x4b0
> [ 4.381486] SYSC_renameat2+0x7e8/0x900
> [ 4.382084] ? d_instantiate+0x6b/0xc0
> [ 4.382640] SyS_rename+0x34/0x50
> [ 4.383156] do_int80_syscall_32+0x85/0x250
> [ 4.383760] entry_INT80_32+0x2a/0x2a
> [ 4.384367] EIP: 0x47ecaf71
> [ 4.384822] EFLAGS: 00000246 CPU: 0
> [ 4.385359] EAX: ffffffda EBX: bf88f0ce ECX: 08ccb9f8 EDX: bf88f0ce
> [ 4.386232] ESI: 00002180 EDI: 00000000 EBP: 08ccb9f8 ESP: bf88f07c
> [ 4.387052] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
> [ 4.387843] Code: 00 00 83 05 c0 a6 41 d0 01 c7 83 90 00 00 00 60 00 00 00
> 83 15 c4 a6 41 d0 00 5b 5d c3 83 05 58 a6 41 d0 01 83 15 5c a6 41 d0 00 <0f>
> 0b 83 05 60 a6 41 d0 01 83 15 64 a6 41 d0 00 66 90 83 05 68
> [ 4.390294] EIP: clear_inode+0xde/0x190 SS:ESP: 0068:cd749e54
> [ 4.391094] ---[ end trace 51740c2df8f58aaa ]---
> [ 4.391785] Kernel panic - not syncing: Fatal exception
>
> # HH:MM RESULT GOOD BAD
> GOOD_BUT_DIRTY DIRTY_NOT_BAD
> git bisect start 359b39466a7af881c131b2e09ff8a7f28a1dbe42
> bebc6082da0a9f5d47a1ea2edc099bf671058bd4 --
> git bisect bad 355879005f035f49f3b9c74b9bbe6194fbe03893 # 05:58 B 0
> 13 29 2 Merge 'sound/topic/asoc-intel-kconfig' into devel-catchup-
> 201711220141
> git bisect bad 669bb7910757a1db9116d20aaf7f2f30ae5ea51d # 05:58 B 0
> 13 29 2 Merge 'rseq/rseq/for-next' into devel-catchup-201711220141
> git bisect good 9dd0e1491fa7fd607afb4e7bac9729994cb3717f # 05:59 G
> 11 0 0 4 Merge 'mkp-scsi/fixes' into devel-catchup-201711220141
> git bisect bad f07b026d989f2837f9eb59bfeeac43834cd960c9 # 05:59 B 0
> 13 29 2 Merge 'dax/xarray-2017-11-20' into devel-catchup-201711220141
> git bisect good 8c609698569578913ad40bb160b97c3f6cfa15ec # 05:59 G
> 11 0 0 4 Merge tag 'armsoc-soc' of
> git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
> git bisect good bec04432cb9036dedf89140c102b5ac03e4b3626 # 05:59 G
> 11 0 0 4 Merge branch 'next' of
> git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
> git bisect good 0bc9706db3a35b6d674d0642f425d768560736b2 # 05:59 G
> 11 0 0 4 drm/amd/display: Use new DRM API where possible
> git bisect good 2ce079f04d5914dae14fdc8618f804cc0d2a1b8f # 05:59 G 11
> 0 0 4 Merge tag 'kbuild-misc-v4.15' of
> git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
> git bisect good 1deab8ce2c91e3b16563b7a7ea150f82334262ec # 06:00 G
> 11 0 0 4 Merge
> git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
> git bisect good c8a0739b185d11d6e2ca7ad9f5835841d1cfc765 # 06:00 G
> 11 0 0 4 Merge tag 'ntb-4.15' of git://github.com/jonmason/ntb
> git bisect good d5f1f94eda2ecf175c97599ddbd6390b43f30e68 # 06:00 G
> 10 0 0 5 Remove sched.h warning
> git bisect good cd0eed7c97812801dd23480a2615cf0a28ec3e13 # 06:00 G
> 11 0 0 4 xarray: Add xa_get_entries and xa_get_tagged
> git bisect bad 53e60a5f200c0e153eaa520aa59973582996fc42 # 06:00 B 0
> 11 29 4 xfs: Convert mru cache to XArray
> git bisect bad 07b45d216e66e4dc3171ea06be488d709f948d55 # 06:00 B
> 0 11 29 4 page cache: Convert find_get_entry to xarray
> git bisect good b7987ba20cdc7d80a0572e277372d1facba6ab3b # 06:00 G
> 11 0 0 4 xarray: Add xas_find_any / xas_next_any
> git bisect good 5b41d2aaaaeae17178e51e313de537e229a3299f # 06:00 G
> 30 0 0 6 page cache: Use xarray for adding pages
> git bisect bad 2569321dd461e33b2d731e8324bdae5b7bc7da4c # 06:00 B
> 0 11 47 4 page cache: Convert page_cache_tree_delete to xarray
> # first bad commit: [2569321dd461e33b2d731e8324bdae5b7bc7da4c] page
> cache: Convert page_cache_tree_delete to xarray
> git bisect good 5b41d2aaaaeae17178e51e313de537e229a3299f # 06:00 G
> 30 0 0 6 page cache: Use xarray for adding pages
> # extra tests on HEAD of linux-devel/devel-catchup-201711220141
> git bisect bad 359b39466a7af881c131b2e09ff8a7f28a1dbe42 # 06:01 B 0
> 23 40 0 0day head guard for 'devel-catchup-201711220141'
> # extra tests on tree/branch dax/xarray-2017-11-20
> git bisect good 2c8c7e65b85c4d2b4e0e140a12408a21151767f0 # 06:01 G
> 10 0 0 9 mm: Convert page-writeback to XArray
> # extra tests with first bad commit reverted
> git bisect good 39845f23d3cd005a53b871b8380e3783ae8f03f5 # 06:02 G
> 10 0 0 1 Revert "page cache: Convert page_cache_tree_delete to xarray"
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
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next prev parent reply other threads:[~2017-11-24 16:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-24 4:00 2569321dd4 ("page cache: Convert page_cache_tree_delete to xarray"): WARNING: CPU: 0 PID: 137 at mm/shmem.c:1084 shmem_evict_inode Fengguang Wu
2017-11-24 16:25 ` Matthew Wilcox [this message]
2017-11-25 13:47 ` Fengguang Wu
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