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SubjectRe: NETDEV WATCHDOG on U60/SMP
Steffen Klassert a écrit :
> On Fri, Jun 20, 2008 at 09:54:00AM +0200, BERTRAND Jo?l wrote:
>> Hello,
>>
>> This mail comes from sparclinux mailing list. I repost it on general
>> linux kernel mailing list because I'm not sure that this bug is sparc
>> specific. Nevertheless, I can only reproduce it on sparc64/SMP.
>>
>> My U60 runs linux debian with official 2.6.25 linux kernel (I'm
>> currently trying 2.6.25.7) and sometimes, when eth2 is stressed, eth2
>> hangs with NETDEV WATCHDOG :
>>
>> NETDEV WATCHDOG: eth2: transmit timed out
>> eth2: transmit timed out, tx_status 00 status 8601.
>> diagnostics: net 0ccc media 8880 dma 0000003a fifo 0000
>> eth2: Interrupt posted but not delivered -- IRQ blocked by another device?
>> Flags; bus-master 1, dirty 2283344(0) current 2283344(0)
>> Transmit list 00000000 vs. fffff800af098200.
>> 0: @fffff800af098200 length 00000042 status 0c01059a
>> 1: @fffff800af098260 length 00000042 status 0c01059a
>> 2: @fffff800af0982c0 length 00000042 status 0c01059a
>> 3: @fffff800af098320 length 00000042 status 0c01059a
>> 4: @fffff800af098380 length 00000042 status 0c01059a
>> 5: @fffff800af0983e0 length 00000042 status 0c01059a
>> 6: @fffff800af098440 length 00000042 status 0c01059a
>> 7: @fffff800af0984a0 length 00000042 status 0c01059a
>> 8: @fffff800af098500 length 8000002a status 0001002a
>> 9: @fffff800af098560 length 8000002a status 0001002a
>> 10: @fffff800af0985c0 length 8000002a status 0001002a
>> 11: @fffff800af098620 length 8000002a status 0001002a
>> 12: @fffff800af098680 length 8000002a status 0001002a
>> 13: @fffff800af0986e0 length 8000002a status 0001002a
>> 14: @fffff800af098740 length 8000002a status 8001002a
>> 15: @fffff800af0987a0 length 8000002a status 8001002a
>> eth2: Resetting the Tx ring pointer.
>> eth2: setting full-duplex.
>
> Some people with similar problems reported, that they can workarround
> their problems by increasing the rx/tx ring sizes of the 3c59x driver.
> See http://bugzilla.kernel.org/show_bug.cgi?id=6444 for details.

Thanks. I'm trying with RX/TX=256/256 and max_interrupt=1024.

Regards,

JKB
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