[CentOS] Kernel Panic on HP/Compaq ProLiant G7

Rob Kampen rkampen at kampensonline.com
Thu Mar 24 15:07:31 UTC 2011

Windsor Dave L. (AdP/TEF7.1) wrote:
> Hello Everyone,
> I recently installed CentOS 5.5 x86_64 on a brand new ProLiant DL380 G7.  I have identical OS software running reock-solid on two other DL380 ProLiant servers, but they are G6 models, not G7.  On the G7, the installation went perfectly and the machine ran great for about 2 weeks, when it just seemed to "stop".  The system stopped responding on the network, and there was no video on the console (or remote console via iLO).  It would not reboot or cold boot through iLO, I actually had to hold the power to turn it off and then hit it again to power up.
> This happened several times within a few days of each other.  Each time, there was no evidence in any logs of a problem - the system just seemed to stop or lock up.   We did have a CPU problem light appear on the front, so HP came in and replaced the one 4-core CPU.  Since then, it has run as long as two weeks, but still crashes randomly.  After the last reboot, I left the console in text mode on vt1, and when it crashed again this morning this was displayed on the screen:
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: ffff8100dc435cf0  CR3: 000000008a6ca000 CR4: 00000000000006e0
> Process smbd (pid: 18970, threadinfo ffff81001529e000, task ffff81011f5347a0)
> Stack:  ffff81011e4e71c0 0000000000000000 ffff8100cf12a015 ffffffff80009c41
>  ffff81011e4e71c0 0000000100000000 000000030027ea9d ffff8100cf12a011
>  ffff81011e4e71c0 ffff81010d9cf300 ffff81011e4e71c0 ffff8101044099c0
> Call Trace:
>  [<ffffffff80009c41>] __link_path_walk+0x3a6/0xf5b
>  [<ffffffff8000ea4b>] link_path_walk+0x42/0xb2
>  [<ffffffff8000cd72>] do_path_lookup+0x275/0x2f1
>  [<ffffffff80012851>] getname+0x15b/0x1c2
>  [<ffffffff800239d1>] __user_walk_fd+0x37/0x4c
>  [<ffffffff80028905>] vfs_stat_fd+0x1b/0x4a
>  [<ffffffff80039fa2>] fcntl_setlk+0x243/0x273
>  [<ffffffff80023703>] sys_newstat+0x19/0x31
>  [<ffffffff8005d229>] tracesys+0x71/0xe0
>  [<ffffffff8005d28d>] tracesys+0xd5/0xe0
> Code: 00 00 00 00 00 00 00 00 70 4d 4f 9d 00 81 ff ff 98 e4 4b dc
> RIP  [<ffff8100dc435cf0>]
>  RSP <ffff81001529fd18>
> CR2: ffff8100dc435cf0
>  <0>Kernel panic - not syncing: Fatal exception
> This suggests that something happened in a Samba process.  I have the Samba3x packages installed since we are beginning to introduce Win7 clients into our environment.
> Googling "Kernel panic - not syncing: Fatal exception" and "CentOS" produced many hits, but nothing that seemed to exactly match my problem.  Since this is the only G7 server I have here right now, I can't reproduce the problem on another machine.  The G6s I have running the identical version of CentOS have no problems.
> I am trying to determine if this is pointing to a hardware or software issue.  Some of the Google results suggested using a Centosplus kernel - is this a good idea?
> The server is a HP DL380 G7 Server with 4 GB RAM (1 DIMM 1333 MHz), one 4-core CPU (2133 MHz), 4 built-in Broadcom "NetExtreme II BCM5709 II Gigabit Ethernet" NICs, and a P410 Smart Array Controller.  The P410 and the system BIOS have both been updated to the latest levels to see if that fixes the crashes, with no change.
> Any idea where I should look next?
Run memtest for 48 hours - also check temperature of system - I have 
seen errors like these from overheating. HTH
> Thanks for any help anyone can provide!
> Best Regards,
> Dave Windsor
> Robert Bosch LLC
> Team Leader, MES Database Infrastructure Group (AdP/TEF7.1)
> 4421 Highway 81 North
> Anderson, SC 29621 USA
> www.bosch.us
> Tel: 1 (864) 260-8459
> Fax: 1 (864) 260-8422
> Dave.Windsor at us.bosch.com
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