From: Dave Chinner <david@fromorbit.com>
To: linux-kernel@vger.kernel.org
Cc: Lee Duncan <lduncan@suse.com>, Chris Leech <cleech@redhat.com>,
open-iscsi@googlegroups.com
Subject: [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0
Date: Thu, 15 Dec 2016 09:24:11 +1100 [thread overview]
Message-ID: <20161214222411.GH4326@dastard> (raw)
Hi folks,
Just updated my test boxes from 4.9 to a current Linus 4.10 merge
window kernel to test the XFS merge I am preparing for Linus.
Unfortunately, all my test VMs using iscsi failed pretty much
instantly on the first mount of an iscsi device:
[ 159.372704] XFS (sdb): EXPERIMENTAL reverse mapping btree feature enabled. Use at your own risk!
[ 159.374612] XFS (sdb): Mounting V5 Filesystem
[ 159.425710] XFS (sdb): Ending clean mount
[ 160.274438] BUG: unable to handle kernel NULL pointer dereference at 000000000000000c
[ 160.275851] IP: iscsi_tcp_segment_done+0x20d/0x2e0
[ 160.276565] PGD 336ed067 [ 160.276885] PUD 31b0d067
PMD 0 [ 160.277309]
[ 160.277523] Oops: 0000 [#1] PREEMPT SMP
[ 160.278004] Modules linked in:
[ 160.278407] CPU: 0 PID: 16 Comm: kworker/u2:1 Not tainted 4.9.0-dgc #18
[ 160.279224] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 160.280314] Workqueue: iscsi_q_2 iscsi_xmitworker
[ 160.280919] task: ffff88003e280000 task.stack: ffffc90000080000
[ 160.281647] RIP: 0010:iscsi_tcp_segment_done+0x20d/0x2e0
[ 160.282312] RSP: 0018:ffffc90000083c38 EFLAGS: 00010206
[ 160.282980] RAX: 0000000000000000 RBX: ffff880039061730 RCX: 0000000000000000
[ 160.283854] RDX: 0000000000001e00 RSI: 0000000000000000 RDI: ffff880039061730
[ 160.284738] RBP: ffffc90000083c90 R08: 0000000000000200 R09: 00000000000005a8
[ 160.285627] R10: 000000009835607d R11: 0000000000000000 R12: 0000000000000200
[ 160.286495] R13: 0000000000000000 R14: ffff8800390615a0 R15: ffff880039061730
[ 160.287362] FS: 0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
[ 160.288340] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 160.289113] CR2: 000000000000000c CR3: 0000000031a8d000 CR4: 00000000000006f0
[ 160.290084] Call Trace:
[ 160.290429] ? inet_sendpage+0x4d/0x140
[ 160.290957] iscsi_sw_tcp_xmit_segment+0x89/0x110
[ 160.291597] iscsi_sw_tcp_pdu_xmit+0x56/0x180
[ 160.292190] iscsi_tcp_task_xmit+0xb8/0x280
[ 160.292771] iscsi_xmit_task+0x53/0xc0
[ 160.293282] iscsi_xmitworker+0x274/0x310
[ 160.293835] process_one_work+0x1de/0x4d0
[ 160.294388] worker_thread+0x4b/0x4f0
[ 160.294889] kthread+0x10c/0x140
[ 160.295333] ? process_one_work+0x4d0/0x4d0
[ 160.295898] ? kthread_create_on_node+0x40/0x40
[ 160.296525] ret_from_fork+0x25/0x30
[ 160.297015] Code: 43 18 00 00 00 00 e9 ad fe ff ff 48 8b 7b 30 e8 da e7 ca ff 8b 53 10 44 89 ee 48 89 df 2b 53 14 48 89 43 30 c7 43 40 00 00 00 00 <8b
[ 160.300674] RIP: iscsi_tcp_segment_done+0x20d/0x2e0 RSP: ffffc90000083c38
[ 160.301584] CR2: 000000000000000c
Known problem, or something new?
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next reply other threads:[~2016-12-14 22:24 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-14 22:24 Dave Chinner [this message]
2016-12-14 22:29 ` [4.10, panic, regression] iscsi: null pointer deref at iscsi_tcp_segment_done+0x20d/0x2e0 Dave Chinner
2016-12-16 18:59 ` Chris Leech
2016-12-21 22:16 ` Dave Chinner
2016-12-21 23:19 ` Linus Torvalds
2016-12-22 0:13 ` Chris Leech
2016-12-22 5:13 ` Dave Chinner
2016-12-22 5:46 ` Linus Torvalds
2016-12-22 6:50 ` Dave Chinner
2016-12-22 18:50 ` Chris Leech
2016-12-22 23:53 ` Ming Lei
2016-12-23 0:03 ` Chris Leech
2016-12-23 0:03 ` Chris Leech
2016-12-23 10:00 ` Christoph Hellwig
2016-12-23 19:42 ` Linus Torvalds
2016-12-24 2:45 ` Jens Axboe
2016-12-24 2:45 ` Jens Axboe
2016-12-24 9:49 ` Christoph Hellwig
2016-12-24 9:49 ` Christoph Hellwig
2016-12-24 10:07 ` Christoph Hellwig
2016-12-24 10:07 ` Christoph Hellwig
2016-12-24 13:17 ` Hannes Reinecke
2016-12-24 13:17 ` Hannes Reinecke
2016-12-24 13:17 ` Hannes Reinecke
2016-12-24 13:19 ` Christoph Hellwig
2016-12-24 13:19 ` Christoph Hellwig
2017-01-04 14:07 ` Christoph Hellwig
2017-01-04 14:07 ` Christoph Hellwig
2016-12-22 20:22 ` Hugh Dickins
2016-12-23 7:32 ` Johannes Weiner
2016-12-23 8:33 ` Johannes Weiner
2017-01-02 21:11 ` Johannes Weiner
2017-01-02 21:11 ` Johannes Weiner
2017-01-03 12:28 ` Jan Kara
2017-01-04 15:26 ` Laurence Oberman
2017-01-04 17:38 ` Laurence Oberman
2017-01-04 17:38 ` Laurence Oberman
2017-01-08 2:02 ` Johannes Weiner
2017-01-08 2:02 ` Johannes Weiner
2017-01-08 2:17 ` Linus Torvalds
2017-01-08 2:17 ` Linus Torvalds
2017-01-09 20:30 ` Jan Kara
2017-01-09 20:30 ` Jan Kara
2017-01-09 20:45 ` Johannes Weiner
2016-12-22 6:28 ` Dave Chinner
2016-12-22 17:24 ` Linus Torvalds
2016-12-22 20:20 ` Thomas Gleixner
2016-12-22 20:42 ` Dave Chinner
2016-12-22 21:06 ` Dave Chinner
2016-12-22 21:10 ` Linus Torvalds
2016-12-22 22:15 ` Dave Chinner
2016-12-22 22:33 ` Dave Chinner
2016-12-23 3:52 ` Dave Chinner
2016-12-23 0:16 ` Jens Axboe
2016-12-22 6:18 ` Christoph Hellwig
2016-12-22 6:30 ` Dave Chinner
2016-12-22 6:36 ` Christoph Hellwig
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