Re: Strange behavior of the driver and trasmit timed out errors

From: Jouni Malinen (
Date: 2002-06-10 20:28:18 UTC

On Mon, Jun 10, 2002 at 04:58:17PM -0300, Carlo Pires wrote:

> hostap_cs: index 0x01: Vcc 3.3, irq 5, io 0x0100-0x013f

> Then, I set a for wlan0 and try to ping, (that not
> exists) and I get in /var/log/messages:
> Jun 10 16:37:02 carlo kernel: NETDEV WATCHDOG: wlan0: transmit timed out

> wlan0: CMD=010b EVSTAT=8011 OFFSET0=0000 OFFSET1=0000 SWSUPPORT0=8a32
> wlan0: CMD=010b EVSTAT=8019 OFFSET0=0000 OFFSET1=0000 SWSUPPORT0=8a32

> Although the does not exist, is this behavior normal?

No, that should not happen. EVSTAT seems to be collecting some events that are possibly not handled.. Have you checked whether the driver gets any interrupts (e.g., from /proc/interrupt)? If not, this could be the reason for these timeouts and you would need to check your pcmcia-cs configuration.

Jouni Malinen                                            PGP id EFC895FA

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