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Date: Wed, 06 Jun 2007 18:55:50 -0400
From: Chuck Ebbert <cebbert@...hat.com>
To: Ian McDonald <ian.mcdonald@...di.co.nz>
CC: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
prasanna@...ibm.com, ananth@...ibm.com,
anil.s.keshavamurthy@...el.com,
"David S. Miller" <davem@...emloft.net>,
Patrick Andrieux <patrick.andrieux@...il.com>,
DCCP Mailing List <dccp@...r.kernel.org>
Subject: Re: [BUG] Fwd: segfault : modprobe dccp_probe/tcp_probe
On 06/06/2007 04:47 PM, Ian McDonald wrote:
> Hi there,
>
> We've seen a report of a problem with dccp_probe as shown below. The
> user has also verified that it occurs in tcp_probe as well. This is on
> Dave Miller's tree but that currently tracks Linus' tree quite
> closely. I do note that it is around 2.6.22-rc2 timeframe so there is
> a possibility fixes may have gone in since.
>
It faulted when it tried to write the breakpoint instruction into the
running kernel's executable code. Apparently the kernel code is now marked
read-only?
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