From: Dmitry Torokhov <dtor_core@ameritech.net>
To: linux-kernel@vger.kernel.org
Cc: Valdis.Kletnieks@vt.edu
Subject: Re: 2.5.14-rc1-mm1.5 - keyboard wierdness
Date: Wed, 21 Sep 2005 23:00:17 -0500 [thread overview]
Message-ID: <200509212300.17740.dtor_core@ameritech.net> (raw)
In-Reply-To: <200509220335.j8M3ZGEJ004230@turing-police.cc.vt.edu>
On Wednesday 21 September 2005 22:35, Valdis.Kletnieks@vt.edu wrote:
> I've had this happen twice now, running Andrew's "not quite -mm2" patch.
>
> Symptoms: After about 20-30 minutes uptime, a running gkrellm shows system mode
> suddenly shoot up to 99-100%, and the keyboard dies. Oddly enough, a USB mouse
> continued working, and the X server was still quite responsive (I was able to
> close Firefox by opening a menu with the mouse and selecting 'quit', for
> example).
>
> alt-sysrq-foo still worked, but ctl-alt-N to switch virtual consoles didn't.
> sysrq-t produced a trace with nothing obviously odd - klogd, syslog, and the
> disk were all working.
>
> Nothing interesting in the syslog - no oops, bug, etc..
>
> Another odd data point (I didn't notice if this part happened the first time):
> gkrellm reported that link ppp0 had inbound packets on the modem port of a
> Xircom ethernet/modem combo card. At the rate of 3.5M/second - a neat trick
> for a 56K modem. When I unplugged the RJ-11, gkrellm *kept* reporting the
> inbound traffic. When I ejected the card, *then* the ppp0 (and the alleged
> inbound packets) stopped - but still sitting at 99% system and no keyboard.
>
> This ring any bells? Any suggestions for instrumentation to help debug this?
>
I have seen this couple of times when I would eject my prism54 card at
a "bad" time - my card sometimes gets stuck (a known problem with some
prism54 cards) and if I would eject it "too early" I would lose keyboard.
So I wait till it complain:
prism54: Your card/socket may be faulty, or IRQ line too busy :(
and eject and insert it again and all is fine.
--
Dmitry
next prev parent reply other threads:[~2005-09-22 4:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-22 3:35 2.5.14-rc1-mm1.5 - keyboard wierdness Valdis.Kletnieks
2005-09-22 4:00 ` Dmitry Torokhov [this message]
2005-09-22 4:19 ` Valdis.Kletnieks
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200509212300.17740.dtor_core@ameritech.net \
--to=dtor_core@ameritech.net \
--cc=Valdis.Kletnieks@vt.edu \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).