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SubjectRe: QUESTION: Network hangs with BP6 and 2.4.x kernels, hardware related?
On Thu, Jan 11, 2001 at 10:48:23PM +1100, Andrew Morton wrote:
> Losing both NICs at the same time could be the elusive "APIC
> stops generating interrupts" problem.

Yup, that's what I thought... But the real question is, is this a
software/configuration problem or a hardware problem which can only be fixed by
physically changing something on the board?... As it is, as you call it,
'elusive', it is a b*tch to pinpoint the source of these problems...

> Do you get any transmit timeout messages in the logs? If
> so, send them.

Here they are (marked with ***):

grep -B2 -A2 transmit /var/log/messages:
Jan 10 22:24:47 behemoth kernel: usb_control/bulk_msg: timeout
Jan 10 22:24:50 behemoth kernel: usb_control/bulk_msg: timeout
*** Jan 10 22:56:51 behemoth kernel: NETDEV WATCHDOG: eth0: transmit timed out
Jan 10 22:57:03 behemoth last message repeated 7 times
Jan 10 22:57:03 behemoth kernel: SysRq: Emergency Sync
--
Jan 10 22:57:09 behemoth kernel: Syncing device 16:07 ... OK
Jan 10 22:57:09 behemoth kernel: Done.
*** Jan 10 22:57:09 behemoth kernel: NETDEV WATCHDOG: eth0: transmit timed out
Jan 10 22:57:09 behemoth kernel: SysRq: Emergency Sync
Jan 10 22:57:09 behemoth kernel: Syncing device 03:01 ... OK

> Does it happen with a uniprocessor build?

Not tried yet, since I wanna use both CPU's :-).

> Are you able to boot with the `noapic' LILO option?

I am, and did it a while ago. As far as I remember, it did not make it stop...
I'll try again (even though it is not a real solution, since that APIC is there
for a reason...)

Cheers//Frank

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