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
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