From: Dave Jones <davej@redhat.com>
To: Srihari Vijayaraghavan <sriharivijayaraghavan@yahoo.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Oops on ibmasm
Date: Wed, 8 Mar 2006 17:59:25 -0500 [thread overview]
Message-ID: <20060308225924.GB21130@redhat.com> (raw)
In-Reply-To: <20060308224145.47332.qmail@web52607.mail.yahoo.com>
On Thu, Mar 09, 2006 at 09:41:45AM +1100, Srihari Vijayaraghavan wrote:
> command count: 1
> input: ibmasm RSA I remote mouse as
> /class/input/input2
> input: ibmasm RSA I remote keyboard as
> /class/input/input3
> ibmasm remote responding to events on RSA card 0
> command count: 2
> ibmasm_exec_command:130 at 1141819512.780778
> do_exec_command:107 at 1141819512.780787
> respond to interrupt at 1141819512.782055
> exec_next_command:150 at 1141819512.782094
> finished interrupt at 1141819512.782103
> command count: 1
> Unable to handle kernel paging request at virtual
> address 6b6b6b6b
the problem is we do this..
command_put(sp->current_command);
exec_next_command(sp);
command_put drops the refcount of the kobject in sp,
which then gets freed in the .release (free_command)
which ends up kfree'ing 'sp'.
unsurprisingly, it goes bang the next time something
tries to access it. (Ie the 2nd line above)
It's totally busted.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2006-03-08 22:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-08 22:41 Oops on ibmasm Srihari Vijayaraghavan
2006-03-08 22:59 ` Dave Jones [this message]
2006-03-09 6:41 ` Greg KH
2006-03-09 9:40 ` Andrew Morton
2006-03-09 13:26 ` Dave Jones
2006-03-09 17:37 ` Max Asbock
2006-03-09 21:58 ` Srihari Vijayaraghavan
-- strict thread matches above, loose matches on Subject: below --
2006-03-10 4:35 Srihari Vijayaraghavan
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=20060308225924.GB21130@redhat.com \
--to=davej@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=sriharivijayaraghavan@yahoo.com.au \
/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