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SubjectRe: Help, eth0: transmit timed out!
Date
Its strange we have another machine, exact same setup,
hardware/software and it doesn't have any problems.

The other thing is that sometimes the machine freezes totally,
and othertimes it comes back after 30 secs??

FYI: Its not a modular kernel, but ill try the printk thing.

Dave.
----- Original Message -----
From: "Denis Vlasenko" <vda@port.imtp.ilyichevsk.odessa.ua>
To: "David Shirley" <dave@cs.curtin.edu.au>; <linux-kernel@vger.kernel.org>
Sent: Wednesday, March 12, 2003 9:37 PM
Subject: Re: Help, eth0: transmit timed out!

> On 12 March 2003 07:23, David Shirley wrote:
> > Hi All,
> >
> > Just installed Redhat 7.3 on an Athlon 2000 system (2.4.20).
> >
> > We have a 3c905c network card, and when I try copying files from an
> > nfs mount I get this in the logs:
> >
> Mar 12 13:15:11 ark kernel: NETDEV WATCHDOG: eth0: transmit timed out
> Mar 12 13:15:11 ark kernel: eth0: transmit timed out, tx_status 00 status
e000.
> Mar 12 13:15:11 ark kernel: diagnostics: net 0cc6 media 8880 dma
000000a0.
> Mar 12 13:15:11 ark kernel: Flags; bus-master 1, dirty 4048(0) current
4064(0)
> Mar 12 13:15:11 ark kernel: Transmit list fffffff8 vs. f7ea9200.
> Mar 12 13:15:11 ark kernel: 0: @f7ea9200 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 1: @f7ea9240 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 2: @f7ea9280 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 3: @f7ea92c0 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 4: @f7ea9300 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 5: @f7ea9340 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 6: @f7ea9380 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 7: @f7ea93c0 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 8: @f7ea9400 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 9: @f7ea9440 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 10: @f7ea9480 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 11: @f7ea94c0 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 12: @f7ea9500 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 13: @f7ea9540 length 800000b6 status
000000b6
> Mar 12 13:15:11 ark kernel: 14: @f7ea9580 length 800000b6 status
800000b6
> Mar 12 13:15:11 ark kernel: 15: @f7ea95c0 length 800000b6 status
800000b6
> Mar 12 13:15:11 ark kernel: eth0: Resetting the Tx ring pointer.

> > Usually the machine freezes up after this, and I can't ping it,
>
> Drivers tend to be less stable that core kernel. Maybe there's
> a bug in 3c59x.c network card driver. You may read the code
> and start putting some printks there, especially in error
> paths.
>
> Say, "Resetting the Tx ring pointer" comes from
> vortex_tx_timeout(struct net_device *dev), and looking at that code
> you may notice that resetting is done without disabling interrupts.
> I know nil about low-level network driver stuff, but
>
> printk(KERN_DEBUG "%s: Resetting the Tx ring pointer.\n",
dev->name);
> if (vp->cur_tx - vp->dirty_tx > 0 && inl(ioaddr +
DownListPtr) == 0)
> outl(vp->tx_ring_dma + (vp->dirty_tx %
TX_RING_SIZE) * sizeof(struct boom_tx_desc),
> ioaddr + DownListPtr);
> if (vp->cur_tx - vp->dirty_tx < TX_RING_SIZE)
> ===> netif_wake_queue (dev);
> if (vp->drv_flags & IS_BOOMERANG)
> outb(PKT_BUF_SZ>>8, ioaddr + TxFreeThreshold);
> outw(DownUnstall, ioaddr + EL3_CMD);
>
> looks a bit strange. I'd move netif_wake_queue() below the out()s
> and encased out()s in IRQ disabled region.
>
> Or some such.
>
> Whee, this module can talk a lot, see:
> MODULE_PARM_DESC(debug, "3c59x debug level (0-6)");
>
> ;)
> --
> vda
>

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