From: "David S. Miller" <davem@redhat.com>
To: Ulrich.Weigand@de.ibm.com
Cc: Richard.Zidlicky@stud.informatik.uni-erlangen.de,
thunder7@xs4all.nl, parisc-linux@lists.parisc-linux.org,
linux-kernel@vger.kernel.org
Subject: Re: [SOLVED + PATCH]: documented Oops running big-endian reiserfs on parisc architecture
Date: Mon, 03 Sep 2001 15:24:43 -0700 (PDT) [thread overview]
Message-ID: <20010903.152443.59467554.davem@redhat.com> (raw)
In-Reply-To: <OF9A995335.07A81CF5-ONC1256ABC.00422A7B@de.ibm.com>
In-Reply-To: <OF9A995335.07A81CF5-ONC1256ABC.00422A7B@de.ibm.com>
From: "Ulrich Weigand" <Ulrich.Weigand@de.ibm.com>
Date: Mon, 3 Sep 2001 14:08:43 +0200
>From what I recall when we were looking into reiserfs on S/390,
the core problem was that reiserfs tried to do *atomic* operations
on non-aligned words. This isn't supported by the hardware on
S/390 (normal non-aligned accesses just work).
I don't really see how this can be fixed in a trap handler; how
would the handler guarantee atomicity?
Oh thats different! That won't even work %100 correctly on x86. On
x86 it will "execute", but it won't be atomic.
Why the F*CK does it need to do this? It sounds like sloppy
programming to me.
Later,
David S. Miller
davem@redhat.com
next prev parent reply other threads:[~2001-09-03 22:25 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-03 12:08 Ulrich Weigand
2001-09-03 13:14 ` Ralf Baechle
2001-09-03 22:24 ` David S. Miller [this message]
2001-09-08 1:41 ` Linus Torvalds
-- strict thread matches above, loose matches on Subject: below --
2001-09-04 22:55 Ulrich Weigand
2001-09-04 17:04 Ulrich Weigand
2001-09-04 14:34 Ulrich Weigand
2001-09-04 15:02 ` Richard B. Johnson
2001-09-04 16:09 ` John Alvord
[not found] <20010902105538.A15344@middle.of.nowhere.suse.lists.linux.kernel>
[not found] ` <20010902150023.U5126@parcelfarce.linux.theplanet.co.uk.suse.lists.linux.kernel>
[not found] ` <20010902195717.A21209@middle.of.nowhere.suse.lists.linux.kernel>
[not found] ` <20010903003437.A385@linux-m68k.org.suse.lists.linux.kernel>
[not found] ` <20010903213835.A13887@fury.csh.rit.edu.suse.lists.linux.kernel>
2001-09-04 9:44 ` Andi Kleen
2001-09-04 12:50 ` Jeff Mahoney
2001-09-04 10:04 ` David S. Miller
2001-09-04 10:25 ` Andi Kleen
2001-09-04 10:29 ` David S. Miller
2001-09-02 8:55 thunder7
2001-09-02 14:00 ` [parisc-linux] " Matthew Wilcox
2001-09-02 17:57 ` [SOLVED + PATCH]: " thunder7
2001-09-02 22:34 ` Richard Zidlicky
2001-09-04 1:38 ` Jeff Mahoney
2001-09-02 23:08 ` David S. Miller
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