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

[Paul Risenhoover <prisenhoover@daxsolutions.com>]

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.


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