From: Ralf Baechle <ralf@linux-mips.org>
To: Lars Persson <lars.persson@axis.com>
Cc: paul.burton@imgtec.com, linux-mips@linux-mips.org,
linux-kernel@vger.kernel.org, Lars Persson <larper@axis.com>
Subject: Re: [PATCH] MIPS: Fix HIGHMEM crash in __update_cache().
Date: Fri, 10 Apr 2015 15:47:11 +0200 [thread overview]
Message-ID: <20150410134711.GC21107@linux-mips.org> (raw)
In-Reply-To: <1428672084-20676-1-git-send-email-larper@axis.com>
On Fri, Apr 10, 2015 at 03:21:24PM +0200, Lars Persson wrote:
> Commit 8b5fe5e54b47 ("MIPS: Fix race condition in lazy cache flushing.")
> triggered NULL pointer dereferences on systems with HIGHMEM.
>
> The problem was caused by not clearing the PG_dcache_dirty flag in
> flush_icache_page() and thus we enter __update_cache() that lacks
> support for HIGHMEM.
Thanks, I've folded this patch into the original 8b5fe5e54b47 commit.
Ralf
next prev parent reply other threads:[~2015-04-10 13:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-10 13:21 [PATCH] MIPS: Fix HIGHMEM crash in __update_cache() Lars Persson
2015-04-10 13:47 ` Ralf Baechle [this message]
2015-04-10 14:31 ` Lars Persson
2015-04-13 17:08 ` Steven J. Hill
2015-04-14 7:30 ` Lars Persson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150410134711.GC21107@linux-mips.org \
--to=ralf@linux-mips.org \
--cc=larper@axis.com \
--cc=lars.persson@axis.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@linux-mips.org \
--cc=paul.burton@imgtec.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.