From: Ernie Petrides <petrides@redhat.com>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Mika Penttila <mika.penttila@kolumbus.fi>,
Dave Kleikamp <shaggy@austin.ibm.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] BUG() in exec_mmap()
Date: Thu, 09 Oct 2003 21:24:19 -0400 [thread overview]
Message-ID: <200310100124.h9A1OJ63012126@pasta.boston.redhat.com> (raw)
In-Reply-To: My message of "Thu, 09 Oct 2003 21:01:11 EDT."
On Thursday, 9-Oct-2003 at 21:1 EDT, Ernie Petrides wrote:
> Sorry I missed the discussion on the original changes. Was there a
> race condition with another cpu gaining a reference in proc_pid_status()
> or access_process_vm() or something like that? Is it possible to just
> use down_read(&old_mm->mmap_sem) and up_read(&old_mm->mmap_sem) inside
> exec_mmap() around the optimized call to exit_mmap() instead?
I meant down_write() and up_write(). (But I haven't evaluated whether
this would be feasible.)
Cheers. -ernie
next reply other threads:[~2003-10-10 1:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-10 1:24 Ernie Petrides [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-10-10 11:18 Ernie Petrides
2003-10-10 1:01 Ernie Petrides
2003-10-10 10:57 ` Marcelo Tosatti
2003-10-09 20:10 Dave Kleikamp
2003-10-09 20:19 ` Marcelo Tosatti
2003-10-09 20:43 ` Mika Penttilä
2003-10-09 20:47 ` Marcelo Tosatti
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