Re: kernel: BUG: soft lockup detected on CPU#0!

From: Paul Risenhoover
Date: Wed Mar 29 2006 - 15:30:58 EST



Thanks for the info Jussi, and I will definitely try that, but I don't understand why the stack trace shows a pile of smbfs calls, and how that might relate to the USB controller. But then again, maybe that's why I'm not a kernel developer.

Jussi Hamalainen wrote:

On Tue, 28 Mar 2006, Paul Risenhoover wrote:

I have been experiencing a number of networking issues with three new machines I have purchased. They are Dell SC1425 machines, each with two 64-bit processors. I have attached the dmesg log to this email for your review.


Although not it is possibly not directly related to your problem, I've also experienced soft lockups on CPU#0 with a Dell PE1850 running
Xen unstable and 2.6.16. The BUG caused the machine to instantly crash and was 100% reproducible by starting an ftp transfer from
a fast server.

After spending a good portion of the day pulling my hair out, I figured out that the USB controller in Dell PowerEdges is really flaky and had caused similar problems before. Disabling the USB controller from BIOS made my problem go away.



--
____
This email message is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/