Re: Divide error in bictcp_cong_avoid ?

Stephen Hemminger
2011-05-04T18:33:55Z

On Wed, 4 May 2011 10:49:40 -0700
Randy Dunlap <rdunlap@xenotime.net> wrote:

> [add cc to netdev]
>
>
> On Wed, 04 May 2011 12:03:31 -0400 TB wrote:
>
> > We're having this issue sporadically on a few servers and this is the
> > backtrace we get from netconsole.
> >
> >
> > [28522.642419] divide error: 0000 [#1] SMP
> > [28522.642457] last sysfs file:
> > /sys/devices/pci0000:00/0000:00:1f.2/host2/target2:0:0/2:0:0:0/vendor
> > [28522.642504] CPU 0
> > [28522.642511] Modules linked in:
> > i2c_i801
> > i2c_core
> > evdev
> > button
> > [28522.642570]
> > [28522.642590] Pid: 0, comm: swapper Not tainted 2.6.38.5 #6
> >
> > Supermicro X8DTH-i/6/iF/6F
> > /
> > X8DTH
> >

What kernel version? I suspect they are running something really old
kernel like RHEL 5 since BIC has not been the default congestion control for
several years.

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