From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Rik van Riel <riel@redhat.com>
Cc: David Miller <davem@davemloft.net>,
roland@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: PTRACE_{READ,WRITE}{TEXT,DATA}
Date: Tue, 29 Apr 2008 15:06:56 +1000 [thread overview]
Message-ID: <1209445616.18023.133.camel@pasglop> (raw)
In-Reply-To: <20080429004405.2c375723@bree.surriel.com>
> Strange, changing access_process_vm on Fedora 9 made gdb able to
> see video memory that the X server had mmapped.
>
> Are you sure gdb behaves as you suggest?
>
> On x86 my patch seems to work as I expected...
Because /proc/<pid>/mem also uses access_process_vm(). See
fs/proc/base.c
Cheers,
Ben.
next prev parent reply other threads:[~2008-04-29 5:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-29 3:54 PTRACE_{READ,WRITE}{TEXT,DATA} Benjamin Herrenschmidt
2008-04-29 4:34 ` PTRACE_{READ,WRITE}{TEXT,DATA} David Miller
2008-04-29 4:44 ` PTRACE_{READ,WRITE}{TEXT,DATA} Rik van Riel
2008-04-29 5:06 ` Benjamin Herrenschmidt [this message]
2008-04-29 5:06 ` PTRACE_{READ,WRITE}{TEXT,DATA} Benjamin Herrenschmidt
2008-04-29 22:07 ` PTRACE_{READ,WRITE}{TEXT,DATA} Roland McGrath
2008-04-30 0:06 ` PTRACE_{READ,WRITE}{TEXT,DATA} Benjamin Herrenschmidt
2008-04-30 1:32 ` PTRACE_{READ,WRITE}{TEXT,DATA} Roland McGrath
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