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Re: vmalloc bugs in 2.4.5???

To: Ralf Baechle <ralf@oss.sgi.com>
Subject: Re: vmalloc bugs in 2.4.5???
From: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Date: Thu, 8 Nov 2001 16:16:58 +0100 (MET)
Cc: Atsushi Nemoto <nemoto@toshiba-tops.co.jp>, dony.he@huawei.com, linux-mips@oss.sgi.com
In-reply-to: <20011107024146.A1740@dea.linux-mips.net>
Organization: Technical University of Gdansk
Reply-to: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Sender: owner-linux-mips@oss.sgi.com
On Wed, 7 Nov 2001, Ralf Baechle wrote:

> > 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.

 See a mail titled "flush_tlb_all in vmalloc_area_pages" dated Sep 7th,
2001 sent to the linux-kernel list for the patch in question.  There was a
discussion on cache flushing wrt to a TLB on the list under "[PATCH]
change name of rep_nop" subject later as well.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +


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