[vortex] NETDEV WATCHDOG: eth0: transmit timed out

[Andrew Morton]

Gerrit Hannaert wrote:
> 
> Jun 18 21:53:40 pc162 kernel: eth0: Interrupt posted but not delivered

Sigh.

This is a bug in the kernel's handling of the x86 APIC.
Normally we see these reports for SMP machines.  In theory,
it can happen with uniprocessor hardware if the kernel
was compiled with the "Use IO-APIC on Uniprocessors" option.

Are you using that?

If so, please disable it and let us know.  You could alternatively
try booting with the `noapic' LILO option.  I *think* this disables
the APIC for IO-APIC-on-uniprocessors.

There's a workaround for this problem in the -ac kernels.
Patches are getting sent to Linus - I think one will stick
pretty soon.

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