Re: Lock-up with modprobe sdhci after suspending to ram

Jani-Matti Hätinen
2006-04-25T08:08:58Z

Pierre Ossman kirjoitti viestissään (lähetysaika maanantai, 24. huhtikuuta
2006 15:29):
> Jani-Matti Hätinen wrote:
> > Hello,
> >
> > For some reason I haven't been able to access sdhci-devel at drzeus.cx
> > for a week now, so sending this here.
>
> I see nothing in the logs from you so I suspect it's in your end. Other
> mail coming from pproxy.gmail.com (which is where you seem to be coming
> from) are coming through fine.

Looks like some kind of routing problem. Even pings don't seem to get through
to mmc.drzeus.cx, or list.drzeus.cx. With http I get a timeout from
mmc.drzeus.cx. This is from IP 80.221.18.58

jannu@lassi ~ $ ping mmc.drzeus.cx
PING gateway.drzeus.cx (85.8.13.51) 56(84) bytes of data.

--- gateway.drzeus.cx ping statistics ---
202 packets transmitted, 0 received, 100% packet loss, time 201694ms

jannu@lassi ~ $ ping list.drzeus.cx
PING list.drzeus.cx (193.12.253.7) 56(84) bytes of data.

--- list.drzeus.cx ping statistics ---
2226 packets transmitted, 0 received, 100% packet loss, time 2231122ms

> > I get a hard lock-up every single time, if I do modprobe sdhci after
> > waking up from suspend-to-ram. If I compile the module into the kernel
> > (or if I don't rmmod it before suspending), I get a lock-up either
> > when going to suspend (if there's a card in the reader) or during
> > resume (if the reader is empty). With a fresh boot-up the driver works
> > just fine. The problem occurs only after the machine has been
> > suspended at least once.
> > I've tested this with 2.6.15-gentoo-r1 with the sdhci-0.11 patches
> > and vanilla 2.6.17-rc2. Sadly nothing gets as far as to the log when
> > the lock-up occurs.
>
> The kernel will not write anything to disk once a panic has occurred. To
> see what's going wrong need to be in text mode (framebuffer is not
> sufficient) when you do the modprobe.

Unfortunately even text mode is completely speechless about it. The modprobe
goes through cleanly and I get the regular prompt (with a blinking cursor
even), but the machine's completely locked up.

--
Jani-Matti Hätinen