Linux-kernel mailing list archive 2000-29,: Re: Resetting the Tx ring pointer

# Re: Resetting the Tx ring pointer

Andrew Morton (andrewm@uow.edu.au)
Thu, 20 Jul 2000 07:41:01 +1000

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The driver thinks that the Tx ring is full, yet it has six spare slots.
It remains in limbo until a Tx timeout. I fixed this IRQ race in
3c59x.c in 2.2 and 2.4, but I confess it never occurred to me to send
some patches to David Hinds, who maintains the PCMCIA clients, of which
this driver is one.

I will do that thing, especially as it now appears that David's package
will be the recommended way of getting PCMCIA support in 2.4.

In the meanwhile, you could try recompiling the driver with
tx_interrupt_mitigation set to zero (if it's not). This doesn't fix the
problem, but it lessens its probability.

Andrew McNabb wrote:
>
> I have a Dell Inpiron 5000 running 2.2.16 with a 3Com
> 3CCFE575CT 10/100 PCMCIA card. Over the last several days
> I've been getting a lot of weird messages in /var/log/messages,
> accompanied by a network brownout--it will completely stop
> working for 30 to 60 seconds, then come back on, and then maybe
> black out again. Here is what the error messages look like:
>
> Jul 19 11:18:37 iolanthe kernel: Flags; bus-master 1, full 1; dirty 21459 curr
> ent 21469.
> Jul 19 11:18:37 iolanthe kernel: Transmit list 090e1a40 vs. c90e1a30.
> Jul 19 11:18:37 iolanthe kernel: 0: @c90e1a00 length 80000042 status 80010042
> Jul 19 11:18:37 iolanthe kernel: 1: @c90e1a10 length 80000042 status 80010042
> Jul 19 11:18:37 iolanthe kernel: 2: @c90e1a20 length 8000002a status 8001002a
> Jul 19 11:18:37 iolanthe kernel: 3: @c90e1a30 length 8000002a status 8001002a
> Jul 19 11:18:37 iolanthe kernel: 4: @c90e1a40 length 80000221 status 80000221
> Jul 19 11:18:37 iolanthe kernel: 5: @c90e1a50 length 800001f4 status 800001f4
> Jul 19 11:18:37 iolanthe kernel: 6: @c90e1a60 length 8000002a status 8000002a
> Jul 19 11:18:37 iolanthe kernel: 7: @c90e1a70 length 8000002a status 8000002a
> Jul 19 11:18:37 iolanthe kernel: 8: @c90e1a80 length 8000002a status 8000002a
> Jul 19 11:18:37 iolanthe kernel: 9: @c90e1a90 length 8000002a status 8000002a
> Jul 19 11:18:37 iolanthe kernel: 10: @c90e1aa0 length 80000053 status 8000005
> 3
> Jul 19 11:18:37 iolanthe kernel: 11: @c90e1ab0 length 8000004a status 8000004
> a
> Jul 19 11:18:37 iolanthe kernel: 12: @c90e1ac0 length 8000004a status 8000004
> a
> Jul 19 11:18:37 iolanthe kernel: 13: @c90e1ad0 length 80000042 status 8001004
> 2
> Jul 19 11:18:37 iolanthe kernel: 14: @c90e1ae0 length 80000053 status 8001005
> 3
> Jul 19 11:18:37 iolanthe kernel: 15: @c90e1af0 length 80000042 status 8001004
> 2
> Jul 19 11:18:37 iolanthe kernel: eth0: Resetting the Tx ring pointer.
>
> Does anyone have any idea of what this is saying? Thanks.
>
> ----------------------------------------------
> Andrew McNabb
> Argus Systems Group
> amcnabb@argus-systems.com
> ----------------------------------------------
>
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- Next message: Roger Larsson: "Re: VM: killing process on 2.4.0-test4"
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- Maybe in reply to: Andrew McNabb: "Resetting the Tx ring pointer"