XI-626 (Prism 2.5) lockup

Eduardo Kaftanski eduardo at linuxcenter.cl
Tue May 6 13:19:58 EDT 2003

On Tue, May 06, 2003 at 07:13:23PM +0200, Martin Stachon wrote:
> During our testing the card was running fine, even with very low link quality. The
> situation was following : we had a router running HostAP, linux client connected to it,
> downloading 100MB file via FTP. Also SSH connection was active to the router. Using SSH,
> channel was changed from 11 to 1 on HostAP. Suprisingly, the SSH connection did not close
> (AP notified the client somehow?) The card was resetted because of the channel change. And
> that locked up linux AP hard. On the screen was message about card reset. This seems to be
> the reason of the failure : if a packet is recieved during card reset, card dies. The
> solution might look like this : Mask interrupts before card reset (in case it is not
> masked) (-just guessing in this) It could also help to deactive card RX (recieve) before
> resetting the card.

Ive seen exaclty the same. The lockups always ocurr simultaneously with
a card reset...

Eduardo Kaftanski
eduardo at linuxcenter.cl
Gerente Ingenieria LinuxCenter S.A.
Canada 239 5to Piso, Providencia, Stgo de Chile.
http://www.linuxcenter.cl 2745000

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