Public bug reported:
DMESG Output:
[29864.180022] BUG: unable to handle kernel NULL pointer dereference at
0000000000000098
[29864.180599] IP: [<ffffffffc05818b0>] xfs_da3_node_read+0x30/0xd0 [xfs]
[29864.181004] PGD 1dec6cc067 PUD 1dedd37067 PMD 0
[29864.181298] Oops: 0000 [#1] SMP
[29864.181495] Modules linked in: xfs libcrc32c dm_crypt ses enclosure
ipmi_devintf x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm
crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw
gf128mul glue_helper ablk_helper cryptd joydev sb_edac edac_core ipmi_si
ipmi_msghandler mei_me ioatdma mei wmi lpc_ich mac_hid bonding 8021q garp stp
mrp llc lp parport btrfs xor raid6_pq hid_generic ixgbe igb isci mpt2sas
i2c_algo_bit usbhid dca ahci mdio ptp hid libsas raid_class libahci pps_core
scsi_transport_sas
[29864.184685] CPU: 23 PID: 102617 Comm: ceph-osd Not tainted 3.16.0-38-generic
#52~14.04.1-Ubuntu
[29864.185183] Hardware name: Supermicro
X9DRi-LN4+/X9DR3-LN4+/X9DRi-LN4+/X9DR3-LN4+, BIOS 3.0b 05/27/2014
[29864.185733] task: ffff883d993c9460 ti: ffff883bd319c000 task.ti:
ffff883bd319c000
[29864.186168] RIP: 0010:[<ffffffffc05818b0>] [<ffffffffc05818b0>]
xfs_da3_node_read+0x30/0xd0 [xfs]
[29864.186731] RSP: 0018:ffff883bd319fcf0 EFLAGS: 00010286
[29864.187039] RAX: 0000000000000000 RBX: ffff88359d81d960 RCX: 0000000000000001
[29864.187444] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff883bd319fca8
[29864.187841] RBP: ffff883bd319fd10 R08: 0000000000000001 R09: ffff883bd319fb90
[29864.188236] R10: ffff883bd319fc20 R11: 0000000000000001 R12: ffff883bd319fd40
[29864.188631] R13: 0000000000000002 R14: 0000000000000002 R15: 0000000056a70dc7
[29864.189046] FS: 00007f5cde432700(0000) GS:ffff88407fd60000(0000)
knlGS:0000000000000000
[29864.209387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[29864.219894] CR2: 0000000000000098 CR3: 0000001eedf12000 CR4: 00000000001407e0
[29864.230351] Stack:
[29864.240409] ffffffffc05c22b0 ffff883bd319fdc0 ffff883bd319fdc0
ffff8826033ff400
[29864.261066] ffff883bd319fd80 ffffffffc0544e7b 0000000200000008
ffff883d5579e010
[29864.282345] 000000013b75ec00 ffff8835c9534900 0000000000000000
0000000000000000
[29864.303671] Call Trace:
[29864.313888] [<ffffffffc0544e7b>] xfs_attr3_node_inactive+0x19b/0x220 [xfs]
[29864.324268] [<ffffffffc0544f96>] xfs_attr3_root_inactive+0x96/0x100 [xfs]
[29864.334448] [<ffffffffc05450b2>] xfs_attr_inactive+0xb2/0x150 [xfs]
[29864.344719] [<ffffffffc059628a>] xfs_inactive+0x8a/0x160 [xfs]
[29864.354423] [<ffffffffc055e3de>] xfs_fs_evict_inode+0x7e/0xc0 [xfs]
[29864.364804] [<ffffffff811ef204>] evict+0xb4/0x180
[29864.374653] [<ffffffff811ef9e5>] iput+0xf5/0x180
[29864.383760] [<ffffffff811e4413>] do_unlinkat+0x193/0x2c0
[29864.394371] [<ffffffff811d961f>] ? SYSC_newstat+0x2f/0x40
[29864.404994] [<ffffffff811e5496>] SyS_unlink+0x16/0x20
[29864.415451] [<ffffffff8176da4d>] system_call_fastpath+0x1a/0x1f
[29864.425331] Code: 55 48 89 e5 41 54 4d 89 c4 53 48 89 fb 48 83 ec 10 48 c7
04 24 b0 22 5c c0 e8 ed fe ff ff 85 c0 75 49 48 85 db 74 44 49 8b 34 24 <48> 8b
96 98 00 00 00 0f b7 52 08 66 c1 c2 08 66 81 fa be 3e 74
[29864.456197] RIP [<ffffffffc05818b0>] xfs_da3_node_read+0x30/0xd0 [xfs]
[29864.466910] RSP <ffff883bd319fcf0>
[29864.477302] CR2: 0000000000000098
[29864.502776] ---[ end trace 35d91394b621d272 ]---
Uname -a:
Linux str-slc-02-03 3.16.0-38-generic #52~14.04.1-Ubuntu SMP Fri May 8
09:43:57 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
lsb_release -rd:
Description: Ubuntu 14.04.1 LTS
Release: 14.04
This is occurring on multiple storage servers running Ceph, resulting in a
system reboot and fsck for the filesystem. Has been occurring multiple times a
day now.
** Affects: xfs (Ubuntu)
Importance: Undecided
Status: New
--
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which is subscribed to xfs in Ubuntu.
https://bugs.launchpad.net/bugs/1464308
Title:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000098 RIP: 0010:[<ffffffffc05818b0>] [<ffffffffc05818b0>]
xfs_da3_node_read+0x30/0xd0 [xfs]
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xfs/+bug/1464308/+subscriptions
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