From: Ralf Baechle <ralf@oss.sgi.com>
To: Atsushi Nemoto <nemoto@toshiba-tops.co.jp>
Cc: dony.he@huawei.com, linux-mips@oss.sgi.com
Subject: Re: vmalloc bugs in 2.4.5???
Date: Wed, 7 Nov 2001 02:41:46 -0800 [thread overview]
Message-ID: <20011107024146.A1740@dea.linux-mips.net> (raw)
In-Reply-To: <20011107.103947.74756322.nemoto@toshiba-tops.co.jp>; from nemoto@toshiba-tops.co.jp on Wed, Nov 07, 2001 at 10:39:47AM +0900
On Wed, Nov 07, 2001 at 10:39:47AM +0900, Atsushi Nemoto wrote:
> In 2.4.5, flush_cache_all() (and flush_tlb_all()) is called in
> vmalloc_area_pages(). I think this call protect us from virtual
> aliasing problem.
>
> By the way, does anybody have any problem with vmalloc on recent
> kernel?
>
> In somewhere between 2.4.6 and 2.4.9, the call to flush_cache_all()
> disappered from vmalloc_area_pages(). I have a data corruption
> problem in vmalloc()ed area without this call. I think we still need
> this call.
Entirely correct. I'm just trying to find why this call got removed
in 2.4.10. Clearly wrong; I had not noticed that these two lines
got removed and thus was assuming the code of those two must somehow
be malfunctioning.
Ralf
next prev parent reply other threads:[~2001-11-07 10:42 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-11-05 7:34 vmalloc bugs in 2.4.5??? machael
2001-11-05 7:34 ` machael
2001-11-06 21:08 ` Ralf Baechle
2001-11-07 0:47 ` machael
2001-11-07 0:47 ` machael
2001-11-07 1:39 ` Atsushi Nemoto
2001-11-07 2:09 ` machael
2001-11-07 2:09 ` machael
2001-11-07 10:41 ` Ralf Baechle [this message]
2001-11-07 11:29 ` machael
2001-11-07 11:29 ` machael
2001-11-08 15:16 ` Maciej W. Rozycki
2001-12-26 3:32 ` Ralf Baechle
2001-12-27 1:55 ` Atsushi Nemoto
2001-12-27 3:12 ` Ralf Baechle
2001-12-27 3:51 ` Atsushi Nemoto
2001-12-27 4:29 ` Ralf Baechle
2001-12-27 16:01 ` Tommy S. Christensen
2001-12-27 21:19 ` Ralf Baechle
2001-12-28 0:48 ` machael thailer
2001-12-28 0:48 ` machael thailer
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