From: "Murray J. Root" <murrayr@brain.org>
To: linux-kernel@vger.kernel.org
Subject: Re: USB CF reader reboots PC - DEVFS did it
Date: Thu, 9 Jan 2003 11:06:33 -0500 [thread overview]
Message-ID: <20030109160633.GA1175@Master.Wizards> (raw)
In-Reply-To: <20030108165130.GA1181@Master.Wizards>
On Wed, Jan 08, 2003 at 11:51:30AM -0500, Murray J. Root wrote:
> ASUS P4S533 (SiS645DX chipset)
> P4 2GHz
> 1G PC2700 RAM
> SanDisk SDDR-77 ImageMate Dual Card Reader (using only CF cards)
>
> ----------------------------
> devfs compiled in to kernel, devfs=nomount in lilo.conf
>
> Insert CF card. mount it. cd to it, do reads and/or writes
> umount card. remove card.
> insert a different card (does not happen if the same card is used)
> mount it. system reboots. logs are corrupted
>
> Doesn't happen every time for read - sometimes I can read 2 or 3 cards first
> Happens every time for write - if I write to a card then changing cards
> causes a reboot
>
> ----------------------------
> devfs=mount in lilo.conf
>
> Insert CF card.
> ls /dev shows sda and sda1
> mount it.
> ls /dev shows sda - no sda1
> cd to mounted CF card
> process hangs, sd-mod & usb-storage "busy"
> rmmod -f usb-storage or sd-mod causes PC to stop
> (keyboard & mouse unresponsive, wmfire frozen, net disconnects)
>
> reboot
> Insert CF card.
> ls /dev shows sda & sda1
> mount it.
> ls /dev shows sda - no sda1
> umount it
> ls /dev shows sda - no sda1
> modprobe -r sd-mod && modprobe sd-mod
> ls /dev shows sda & sda1
>
New - 2.5.55
No more reboot - just a seg fault when trying to mount a new card
and process hangs if I try again (not surprising).
Removed devfs completely from build - everything works fine.
Can mount, read, write, umount many cards without a problem.
--
Murray J. Root
------------------------------------------------
DISCLAIMER: http://www.goldmark.org/jeff/stupid-disclaimers/
------------------------------------------------
Mandrake on irc.freenode.net:
#mandrake & #mandrake-linux = help for newbies
#mdk-cooker = Mandrake Cooker
#cooker = moderated Mandrake Cooker
prev parent reply other threads:[~2003-01-09 15:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-08 16:51 USB CF reader reboots PC Murray J. Root
2003-01-08 17:33 ` Murray J. Root
2003-01-08 17:50 ` Eli Carter
2003-01-08 17:59 ` Murray J. Root
2003-01-08 18:16 ` Greg KH
2003-01-08 18:24 ` Murray J. Root
2003-01-08 18:49 ` Andries Brouwer
2003-01-09 16:06 ` Murray J. Root [this message]
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=20030109160633.GA1175@Master.Wizards \
--to=murrayr@brain.org \
--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