From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 107301] system hang during ext4 xattr operation
Date: Fri, 08 Apr 2016 10:09:28 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=107301
Philipp Matthias Hahn changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pmhahn@pmhahn.de
--- Comment #24 from Philipp Matthias Hahn ---
Created attachment 212131
--> https://bugzilla.kernel.org/attachment.cgi?id=212131&action=edit
Multiple NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [smbd:8822]
We have a similar situation with Samba4, which also heavily uses xattr to store
the NTACLs.
>>From OCR (may contain errors):
[281537.032878] Call Trace:
[281537.032882] [] ? mb_cache_entry_get+0x1ac/0x1f0
[mbcache]
[281537.032883] [] ? __find_get_block+0xef/0x120
[281537.032889] [] ? ext4_xattr_block_set+0x80/0xa50 [ext4]
[281537.032890] [] ? __find_get_block+0xef/0x120
[281537.032896] [] ? ext4_xattr_set_entrg+0x2a/0x350 [ext4]
[281537.032901] [] ? ext4_xattr_set_handle+0x376/0x4d0
[ext4]
[281537.032907] [] ? ext4_xattr_set+0xd4/0x130 [ext4]
[281537.032909] [] ? generic_setxattr+0x6e/0xa0
[281537.032910] [] ? __ufs_setxattr_noperm+0x71/0x1d0
[281537.032912] [] ? ufs_setxattr+0xc4/0xd0
[281537.032914] [] ? setxattr+0x134/0x1f0
[281537.032916] [] ? filenane_lookup+0x31/0xd0
[281537.032917] [] ? user_path_at_emptg+0x60/0xc0
[281537.032918] [] ? __sb_start_urite+0x53/0x100
[281537.032919] [] ? path_setxattr+0x90/0xc0
[281537.032921] [] ? SgS_setxattr+0x14/0x20
[281537.032922] [] ? system_call_fast_compare_end+0x0/0x6b
[281537.032933] Code: f0 0f c1 07 89 02 c1 ea 10 66 39 02 75 01 03 0f b7 f2 b8
00 80 00 00 0f b7 0f 41 89 08 41 31 d0 41 81 e0 f
e ff 00 00 74 10 f3 90 <83> e8 01 75 e7 0f 1f 80 00 00 00 00 eb d9 0f b7 f1 e8
08 75 ff
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