eepro100 timeout error, bug.

Soohoon Lee Soohoon.Lee@alpha-processor.com
Wed May 10 17:04:08 2000



> I'm having troble with eepro100 on 2.3.99-prex.
> It generates timeout error very often.
> I thought it is alpha platform problem but it's new driver's bug.
> There's a race condition problem in speedo_start_xmit().
> The driver does read-modify-write and mean while 8255x write something
> to the same address. So I change the operation automic.
> Old driver(in 2.2.14) doesn't have the problem.
> What about seperating one 4bytes field to two 2byte fields.
> 
> Soohoon.
> 
> diff -w drivers/net/eepro100.c ~/linux/drivers/net/eepro100.c
> 899c899
> < /* #if 0 - Alphas need this or else they come up in 10 Mbit mode */
> ---
> > #if 0
> 916c916
> < /* #endif */
> ---
> > #endif
> 1221,1223c1221
> < //                    last_cmd->cmd_status &= cpu_to_le32(~(CmdSuspend
> | CmdIntr));
> <                       clear_bit(30, &last_cmd->cmd_status);
> <                       clear_bit(29, &last_cmd->cmd_status);
> ---
> >                       last_cmd->cmd_status &= cpu_to_le32(~(CmdSuspend
> | CmdIntr));
> 
> 
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