On Mon, Dec 01, 2008 at 03:10:36PM -0500, Jason Dixon wrote:
> On Mon, Nov 24, 2008 at 01:21:00PM -0500, Josh Fisher wrote:
> >
> > Jason Dixon wrote:
> >> On Mon, Nov 24, 2008 at 12:50:15PM -0500, Josh Fisher wrote:
> >>
> >>> Jason Dixon wrote:
> >>>
> >>>> We have three XP SP2 workstations that all have scheduled Bacula jobs.
> >>>> Two of them run fine. The third one "loses networking" every Friday
> >>>> during the FULL backup job. When it enters this state you can no longer
> >>>> ping the box or perform any networking functionality.
> >>>> Disabling/re-enabling the interface doesn't help. The only remedy is to
> >>>> reboot the box.
> >>>>
> >>>> Has anyone encountered this with XP before? Is it possibly a
> >>>> combination of software that is causing the issue (e.g. AVG)? Any known
> >>>> workarounds?
> >>>>
> >>> This is almost certainly either a buggy NIC driver or a hardware
> >>> (NIC/switch/cable) problem. If all three XP machines have the same NIC
> >>> and driver version, then it's probably hardware. Otherwise, my guess is
> >>> the NIC driver. During a full backup, Bacula, naturally, places a heavy
> >>> load on the NIC, and so Bacula will definitely reveal any underlying
> >>> network problems. I ran into this with a couple of Vista laptops, and
> >>> also with a nForce430 chipset XP machine. I have found it is not uncommon
> >>> for Windows NIC drivers to be buggy.
> >>
> >> Someone else suggested that offlist. There was a driver update for the
> >> onboard nforce ethernet, so I applied that and we'll see how that goes.
> >
> > Also, you could try disabling checksum offload and/or segmentation offload
> > in the NIC's advanced settings.
>
> The new driver didn't help. Installed an Intel card, we'll see how that
> goes.
We've gone through 4 nights of incrementals and our regularly scheduled
full backup this evening without any problems. The Friday night full
backups were always the trigger event previously. It appears that the
nvidia ethernet chipset was the culprit.
Thanks,
--
Jason Dixon
OmniTI Computer Consulting, Inc.
jdixon AT omniti DOT com
443.325.1357 x.241
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