Hi all, while doing some tests with our new switches i discovered that rebooting the switch sometimes causes a breakdown of the kernel on one of my test machines.
The environment is:
- nortel Baystack 5510-48T switch
- network card: Intel Pro 1000 Desktop GT
- kernel 2.4.32 (from www.kernel.org)
- debian 3.1
After max of 3 reboots, the machine is frozen, showing the following message:
kernel BUG at e1000_hw.c:5101!
invalid operand: 0000
CPU: 0
EIP: 0010:[<d0836370>] Not tainted
EFLAGS: 00010213
...
(please excuse me for not posting the complete message, as i only have a
hardcopy as
jpg of it. I will if it is necessary)
I looked at line 5101 and it shows up as
msec_delay(20);
after googling around i noticed that there seem to be some problems with that
function
and that it was sometimes replaced by udelay.
So i changed all occurences of msec_delay to udelay in the specific function
(e1000_config_dsp_after_link_change), recompiled the module and everything works
as expected. I know this is some kind of dirty hack, so please if someone else
can
look into it, would be great!
attached is a patch that just changes msec_delay to udelay.
regards,
arne
[EMAIL PROTECTED]
www.uptime-isc.de
Eiffestrasse 426
20537 Hamburg
Telefon +49 40 254 137-00
Fax +49 40 254 137-22
e1000.patch
Description: e1000.patch
