Red Hat Bugzilla – Bug 1253584
Panic in crypto_exit_ops() during shutdown , 4.1.3-100.fc21
Last modified: 2015-12-02 13:16:10 EST
Created attachment 1062913 [details]
screenshot of panic message
Description of problem:
Since update to 4.1.3-100.fc21, my system repeatedly crashed during shutdown
Version-Release number of selected component (if applicable):
well reproducable, maybe always during shutdown.
Steps to Reproduce:
I am using ecryptfs on my home directory. The error seems to occur when ecryptfs is unmounted.
Code: [...] 48 8b 47 50 55 48 89 e5 <48> 83 b8 00 00 00 00
There is a similar case where just a WARNING is emitted, I observed it once on Di 11 Aug 2015 08:13:28 CEST. It has been reported to https://retrace.fedoraproject.org/faf/reports/766405/, https://retrace.fedoraproject.org/faf/problems/1159258/
The stack is identical to the panic stack except for the uppermost part:
:WARNING: CPU: 0 PID: 17652 at mm/slub.c:3384 ksize+0xe0/0xf0()
:CPU: 0 PID: 17652 Comm: umount Not tainted 4.1.3-100.fc21.x86_64 #1
:Hardware name: FUJITSU LIFEBOOK E744/FJNB26F, BIOS Version 1.11 05/23/2014
: 0000000000000000 000000004584e4a2 ffff8803f3b9bb68 ffffffff81793b35
: 0000000000000000 0000000000000000 ffff8803f3b9bba8 ffffffff810a161a
: ffff8803f3b9bbc8 ffffea0001b04840 ffff88006c121c00 0000000000000000
: [<ffffffff81793b35>] dump_stack+0x45/0x57
: [<ffffffff810a161a>] warn_slowpath_common+0x8a/0xc0
: [<ffffffff810a174a>] warn_slowpath_null+0x1a/0x20
: [<ffffffff81204af0>] ksize+0xe0/0xf0
: [<ffffffff811cf2dc>] kzfree+0x1c/0x40
: [<ffffffff813532ed>] crypto_destroy_tfm+0x4d/0x90
: [<ffffffff81367555>] cryptd_blkcipher_exit_tfm+0x15/0x20
(below here, same stack as above).
I would call this a regression because I never saw it before I upgraded to 4.1.3-100.fc21 on Mon Aug 10.
can you try the latest 4.1.5 update available in testing? There was a known issue with HID corruption which tended to show up on shutdown
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