| To: | "Ralf Baechle" <ralf@oss.sgi.com>, "Tommy S. Christensen" <tommy.christensen@eicon.com> |
|---|---|
| Subject: | Re: vmalloc bugs in 2.4.5??? |
| From: | "machael thailer" <dony.he@huawei.com> |
| Date: | Fri, 28 Dec 2001 08:48:16 +0800 |
| Cc: | "Atsushi Nemoto" <nemoto@toshiba-tops.co.jp>, <linux-mips@oss.sgi.com> |
| References: | <20011226013221.A737@dea.linux-mips.net> <20011227.105518.74756316.nemoto@toshiba-tops.co.jp> <20011227011222.A16695@dea.linux-mips.net> <20011227.125122.71082554.nemoto@toshiba-tops.co.jp> <20011227022936.A19397@dea.linux-mips.net> <3C2B45D3.B938CA44@eicon.com> <20011227191959.B1553@dea.linux-mips.net> |
| Sender: | owner-linux-mips@oss.sgi.com |
----- Original Message ----- From: Ralf Baechle <ralf@oss.sgi.com> To: Tommy S. Christensen <tommy.christensen@eicon.com> Cc: Atsushi Nemoto <nemoto@toshiba-tops.co.jp>; <dony.he@huawei.com>; <linux-mips@oss.sgi.com> Sent: Friday, December 28, 2001 5:19 AM Subject: Re: vmalloc bugs in 2.4.5??? > On Thu, Dec 27, 2001 at 05:01:23PM +0100, Tommy S. Christensen wrote: > > > Great! But please make sure that the cache is flushed after the pages > > are allocated instead of before. > > > > With 2.4.9 that still had the cache-flushing in vmalloc_area_pages(), I > > got cache aliasing problems in low memory situations (since alloc_page() > > will re-schedule when no pages are available). > > Correct; I fixed that one. That's actually a nasty one, affects all > previous Linux releases. I wonder how this one went unnoticed for so long. > Probably because loading modules is a relativly rare event or so. How do you fix it? Can you mail your fixup code to me please? machael |
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