redHat 6.1 + errata + linux 2.2.14 + pcmcia-cs-3.0.14 on a compaq
presario 305 laptop.
my linksys 10/100 ethernet card (pcmcia) would work at boot time, but
then stop working when i ran x. but if i ran /etc/rc.d/init.d/pcmcia
restart as root, it would work again. i had recently made changes to my
system - i had upgraded sawmill (and related libs) and installed the
gnome-pilot stuff. how could that affect the pcmcia system though?
i emailed alan cox and he replied rather quickly: "did you check the
driver settings before and after running x?" uh.... should have
thought of that. as it turns out pcnet_cs used interrupt 3 prior to x
running, and interrupt 9 after i'd bounced pcmcia.
first order of business: convince pcnet_cs to use interrupt 9, or to not
use interrupt 3. as it turns out the latter is easiest: uncomment the
#exclude irq 3
in the file /etc/pcmcia/config.opts. the comment above indicates that
irq 3 is usually used for the second serial line. i know there's a
winmodem in the box taking one serial line, i guess the onboard com port
takes the other and gets it due to the fact that the gnome-pilot stuff
actually, i'm not all that certain since /var/log/messages offers this
Jan 20 10:08:59 localhost kernel: ttyS00 at 0x03f8 (irq = 4) is a 16550A
Jan 20 10:08:59 localhost kernel: ttyS02 at 0x03e8 (irq = 4) is a 16550A
and /proc/interrupts doesn't show anything using irq 3. i think it is
something to do with serial ports, but since it now works i'll just
leave it alone.
anyway, if someone has similar problems in the future i hope this is of
use. also, a quick public thank you to alan.
kevin at suberic.net Nutrition Facts
fork()'ed on 37058400 Puns: 100% RDA (% good puns: 0)
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