Bug 154327 - slab corruption freezes NFS-mounted filesystem
slab corruption freezes NFS-mounted filesystem
Status: CLOSED RAWHIDE
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
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i686 Linux
medium Severity high
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Assigned To: Dave Jones
Brian Brock
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Depends On:
Blocks:
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Reported: 2005-04-09 22:36 EDT by Alexandre Oliva
Modified: 2015-01-04 17:18 EST (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2005-10-28 10:06:55 EDT
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Description Alexandre Oliva 2005-04-09 22:36:51 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.6) Gecko/20050328 Firefox/1.0.2 Fedora/1.0.2-3

Description of problem:
While running yum update using a local copy of rawhide mounted over NFS, I got the following logged to /var/log/messages

Slab corruption: (Not tainted) start=dc2e8a30, len=2048
Redzone: 0x5a2cf071/0x5a2cf071.
Last user: [<c0309acb>](kfree_skbmem+0x8/0x15)
010: 6b 6b 20 a0 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ea c5
3f0: 54 5e c7 e9 f5 b7 9f 7c bd 79 3f 0e de 29 70 c4
400: 41 9c 71 53 7a d2 cf 54 ee 8a 8f 85 e4 fc 03 1f
410: 9b 86 2a 5c aa 68 a8 fa 26 36 c2 04 d1 00 ce 9e
420: 73 03 14 f3 cc 6f d1 a5 40 0b 5d a8 6f 9b d3 5a
430: 3c 3d 1e d6 8c f1 7e a7 6a cd 25 71 b6 13 8e 38
Prev obj: start=dc2e8224, len=2048
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<c030989f>](alloc_skb+0x31/0xc1)
000: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
010: 5a 5a 20 a0 00 00 42 8a 2e 1c ff ff ff ff ea c5
Next obj: start=dc2e923c, len=2048
Redzone: 0x170fc2a5/0x170fc2a5.
Last user: [<c0146d20>](add_sect_attrs+0x2f/0x137)
000: 8f f9 38 c0 34 96 2e dc 58 92 2e dc 80 ee b8 e0
010: 24 01 5a 5a d3 6c 14 c0 00 00 00 00 2e 74 65 78

The machine kept running, but yum froze, and /var/log/messages had a message about the NFS server not responding any more, although it was fine.  Rebooting the NFS client fixed it.

Version-Release number of selected component (if applicable):
kernel-2.6.11-1.1231_FC4.i686

How reproducible:
Didn't try

Steps to Reproduce:
1.boot into kernel-2.6.11-1.1231_FC4.i686
2.mount a rawhide-20050409 repository from an NFS server
3.configure yum to use it
4.run yum update, on a box running 20050408's rawhide

Additional info:
Comment 1 Dave Jones 2005-10-06 01:28:20 EDT
Is this still happening on the latest rawhide ?
Comment 2 Alexandre Oliva 2005-10-28 10:06:55 EDT
This has long been fixed, I believe.  I haven't seen it for a long time.

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