[CentOS] CentOS 5.0 crash (cifs bug ?)

Kuang-Chun Cheng kcc1967 at gmail.com
Sun Sep 23 03:40:03 UTC 2007


Hi

I think I hit the cifs bug described at
http://wiki.centos.org/TipsAndTricks/WindowsShares
and
http://bugs.centos.org/view.php?id=1776

As CentOS Wiki said, CentOS 5.0 do have a bug fixed cifs.ko, so I thought it
should be in CentOSPlus repository ... so I upgrade my kernel and using
2.6.18-8.1.10.el5.centos.plus.   After I use this kernel release, I
check the cifs.ko
and see the following:

$ modinfo /lib/modules/2.6.18-8.1.10.el5.centos.plus/kernel/fs/cifs/cifs.ko
filename:
/lib/modules/2.6.18-8.1.10.el5.centos.plus/kernel/fs/cifs/cifs.ko
version:        1.45
description:    VFS to access servers complying with the SNIA CIFS
Specification e.g. Samba and Windows
license:        GPL
author:         Steve French <sfrench at us.ibm.com>
srcversion:     7C1A34565EA00CE993D56FA
depends:
vermagic:       2.6.18-8.1.10.el5.centos.plus SMP mod_unload 686
REGPARM 4KSTACKS gcc-4.1
parm:           CIFSMaxBufSize:Network buffer size (not including
header). Default: 16384 Range: 8192 to 130048 (int)
parm:           cifs_min_rcv:Network buffers in pool. Default: 4
Range: 1 to 64 (int)
parm:           cifs_min_small:Small network buffers in pool. Default:
30 Range: 2 to 256 (int)
parm:           cifs_max_pending:Simultaneous requests to server.
Default: 50 Range: 2 to 256 (int)


The cifs.ko is version 1.45 .... I think this is still the buggy
version, right ???

I have two CentOS 5.0 boxes, both running 2.6.18-8.1.10.el5.centos.plus and
using automounter to mount WinXP's share.  I use this as part of my daily
backup ... and both boxes crash quite often ... specially when I have
large files
cross cifs mounted filesystem using rsync.

For small files, they are quite stable.

Could someone tell me ... did I use the bug fixed cifs.ko ?  Or how
can I fix this
problem ?  Thanks

Regards
KC



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