Module loading and Kernel crash

From: Anand Ashok Kulkarni (anand.karni@wipro.com)
Date: Sun Oct 28 2001 - 04:38:35 EST


I have written a module which takes the packet from the kernel, stores some
number of packets and then sends all if them out. But some how the kernel
crashes after working for some time. how can i take care of that. the
enqueing and dequeing functions take action on the same piece of memory.
will using task queues for both of them work ?
I have tried doin it...but even then the kernel konks.:-(

----- Original Message -----
From: "Richard Henderson" <rth@redhat.com>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: <torvalds@transmeta.com>; <alan@redhat.com>;
<linux-kernel@vger.kernel.org>
Sent: Friday, October 26, 2001 10:33 PM
Subject: Re: alpha 2.4.13: fix taso osf emulation

> On Fri, Oct 26, 2001 at 12:01:10PM +0200, Maciej W. Rozycki wrote:
> > The following trivial patch reportedly fixes OSF/1 programs using
31-bit
> > addressing. It's already present in the -ac tree; I guess it just got
> > lost during a merge. It applies fine to 2.4.13.
>
> This is the patch that Jay Estabrook forwarded me that I rejected
> in favour of writing a special arch_get_unmapped_area.
>
> > It used to do so. It breaks things such as dynamic linking of shared
> > objects linked at high load address.
>
> Err, how?
>
> > It breaks mmap() in principle, as it shouldn't fail when invoked with
> > a non-zero, non-MAP_FIXED, invalid address if there is still address
> > space available elsewhere.
>
> No, it doesn't. Or rather, it only does if you only bothered
> to search once. IMO one should search thrice: once at addr,
> once at TASK_UNMAPPED_BASE, and once at PAGE_SIZE.
>
>
>
> r~
> -
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