From: Jeff Dike <jdike@addtoit.com>
To: Vishal Patil <vishpat@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Memory problems in schedule()
Date: Sun, 5 Jun 2005 22:31:45 -0400 [thread overview]
Message-ID: <20050606023145.GB11352@ccure.user-mode-linux.org> (raw)
In-Reply-To: <4745278c050605180115a70b8d@mail.gmail.com>
On Sun, Jun 05, 2005 at 09:01:19PM -0400, Vishal Patil wrote:
> 1) Whenever I select a process to run using my algorithm the kernel
> panics with "Segfault with no mm" basically the "mm" field of the
> task_struct that I selected is empty. I don't understand why this
> should happen, since I have just added code to select a process and
> haven't modified any memory related code in the schedule() function.
Start with a backtrace from the panic and debug it from there.
> 2) I am able to run the UMLfied kernel under gdb, however the execution
> never halts even though I set several breakpoints. Also these
> breakpoints have not been set in interrupt handling code and I have
> compiled the code with -g option.
UML and gdb versions? tt or skas mode?
Jeff
next prev parent reply other threads:[~2005-06-06 2:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-06 1:01 Memory problems in schedule() Vishal Patil
2005-06-06 2:31 ` Jeff Dike [this message]
2005-06-06 12:24 ` Vishal Patil
2005-06-06 13:44 ` Jeff Dike
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=20050606023145.GB11352@ccure.user-mode-linux.org \
--to=jdike@addtoit.com \
--cc=linux-kernel@vger.kernel.org \
--cc=vishpat@gmail.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.