Re: Simultaneous network/IDE traffic = reboot

Wakko Warner (wakko@animx.eu.org)
Wed, 2 Jun 1999 10:45:08 -0400

> > I have found a very simple way of reproducing the crash. Just do a 'ping
> > -f' to the machine for a second or so and run 'hdparm -t /dev/hda' at
> > the same time. It reboots almost immediately. One more thing, if I do
>
> Exactly this test done to this 2.2.9 kernel (Gigabyte 586ATX2
> motherboard, similar network configuration, pinging from a separate
> machine)... no problems. System stays up.

I ran into this yesterday when I was backing up a laptop hard drive. I
pulled the drive, stuck it in a machine (which is basically a test machine
w/o harddrives and a nfs mounted /) and copyied hda to a file over nfs.
After about 100mb copyied, I got an oops and the system froze (this is
2.2.1). It froze after cp segged.

I tried it again, it copyied about 300mb and did the same thing using cat.
What was funny was the fact that I used gzip -1 to do this and it worked
just fine.

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