Every few weeks, since switching to 2.4.2, I get a series of 'NETDEV
WATCHDOG' errors. When this happens the system becomes unusable (homes
are NFS mounted) and does not recover. A small number of packets do get
out when it's in this state, but not enough to be useful. I've tried an
ifconfig up/down, all that seems to help is a reboot. The 3c905C driver
is compiled into my kernel, so I can't reload it. The machine is a Dell
Precision 220 (only one processor installed).
Has anyone else seen this problem. Is their a way to reset the interface
without rebooting? Any ideas?
Many thanks,
Clem
NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out, tx_status 00 status e601.
diagnostics: net 0cfc media 8880 dma 0000003a.
eth0: Interrupt posted but not delivered -- IRQ blocked by another
device?
Flags; bus-master 1, full 0; dirty 1172221(13) current 1172221(13).
Transmit list 00000000 vs. c14ca2d0.
0: @c14ca200 length 8000002a status 0001002a
1: @c14ca210 length 8000008e status 0001008e
2: @c14ca220 length 800000ae status 000100ae
3: @c14ca230 length 8000006e status 0001006e
4: @c14ca240 length 800000ae status 000100ae
5: @c14ca250 length 800000ae status 000100ae
6: @c14ca260 length 8000004a status 0001004a
7: @c14ca270 length 8000008e status 0001008e
8: @c14ca280 length 800000ae status 000100ae
9: @c14ca290 length 8000002a status 0001002a
10: @c14ca2a0 length 8000002a status 0001002a
11: @c14ca2b0 length 8000004a status 8001004a
12: @c14ca2c0 length 8000002a status 8001002a
13: @c14ca2d0 length 80000042 status 00010042
14: @c14ca2e0 length 800000ae status 000100ae
15: @c14ca2f0 length 80000042 status 00010042
eth0: Resetting the Tx ring pointer.
Clem Taylor wrote:
>
> Every few weeks, since switching to 2.4.2, I get a series of 'NETDEV
> WATCHDOG' errors. When this happens the system becomes unusable (homes
> are NFS mounted) and does not recover. A small number of packets do get
> out when it's in this state, but not enough to be useful. I've tried an
> ifconfig up/down, all that seems to help is a reboot. The 3c905C driver
> is compiled into my kernel, so I can't reload it. The machine is a Dell
> Precision 220 (only one processor installed).
Irritating, isn't it?
> Has anyone else seen this problem. Is their a way to reset the interface
> without rebooting? Any ideas?
No. A reboot is required.
It is due to a problem in the APIC handling. There is a
workaround in the 2.4.2-ac series which fixes it. It
appears to not be in the 2.4.3 series. So for the
while you'll have to either install a recent -ac kernel
or boot with the `noapic' LILO option.
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