From: "Mike Uhler" <uhler@mips.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mike Uhler <uhler@mips.com>,
Linux/MIPS Development <linux-mips@linux-mips.org>
Cc: uhler@mips.com
Subject: Re: unaligned load in branch delay slot
Date: Mon, 13 Jan 2003 12:12:28 -0800 [thread overview]
Message-ID: <200301132012.h0DKCS631737@uhler-linux.mips.com> (raw)
In-Reply-To: Your message of "Mon, 13 Jan 2003 19:04:36 +0100." <Pine.GSO.4.21.0301131901500.21279-100000@vervain.sonytel.be>
>
> Thanks!
>
> The following patch (against linux-mips-2.4.x CVS) cures my crash.
>
> I don't know on which CPUs this may happen (need #ifdef CONFIG_CPU_VR41XX?),
> nor whether all branch and jump instructions are affected (I included
> everything that starts with a `b' or `j').
Since all MIPS jumps are unconditional, one can never have a non-taken
jump, so you can eliminate those from the patch.
/gmu
--
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
Michael Uhler, VP, Systems, Architecture, and Software Products
MIPS Technologies, Inc. Email: uhler@mips.com Pager: uhler_p@mips.com
1225 Charleston Road Voice: (650)567-5025 FAX: (650)567-5225
Mountain View, CA 94043 Mobile: (650)868-6870 Admin: (650)567-5085
WARNING: multiple messages have this Message-ID (diff)
From: "Mike Uhler" <uhler@mips.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mike Uhler <uhler@mips.com>,
Linux/MIPS Development <linux-mips@linux-mips.org>uhler@mips.com
Subject: Re: unaligned load in branch delay slot
Date: Mon, 13 Jan 2003 12:12:28 -0800 [thread overview]
Message-ID: <200301132012.h0DKCS631737@uhler-linux.mips.com> (raw)
Message-ID: <20030113201228.fTPR02LzQRjZOx4f6hzGoQ0KubnnQgPfxSOkMoGZZXU@z> (raw)
In-Reply-To: Your message of "Mon, 13 Jan 2003 19:04:36 +0100." <Pine.GSO.4.21.0301131901500.21279-100000@vervain.sonytel.be>
>
> Thanks!
>
> The following patch (against linux-mips-2.4.x CVS) cures my crash.
>
> I don't know on which CPUs this may happen (need #ifdef CONFIG_CPU_VR41XX?),
> nor whether all branch and jump instructions are affected (I included
> everything that starts with a `b' or `j').
Since all MIPS jumps are unconditional, one can never have a non-taken
jump, so you can eliminate those from the patch.
/gmu
--
=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=
Michael Uhler, VP, Systems, Architecture, and Software Products
MIPS Technologies, Inc. Email: uhler@mips.com Pager: uhler_p@mips.com
1225 Charleston Road Voice: (650)567-5025 FAX: (650)567-5225
Mountain View, CA 94043 Mobile: (650)868-6870 Admin: (650)567-5085
next prev parent reply other threads:[~2003-01-13 20:12 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-13 16:13 unaligned load in branch delay slot Geert Uytterhoeven
2003-01-13 17:19 ` Mike Uhler
2003-01-13 17:19 ` Mike Uhler
2003-01-13 18:04 ` Geert Uytterhoeven
2003-01-13 20:12 ` Mike Uhler [this message]
2003-01-13 20:12 ` Mike Uhler
2003-01-28 2:39 ` Ralf Baechle
2003-01-28 9:30 ` Geert Uytterhoeven
2003-01-28 11:47 ` Ralf Baechle
2003-01-28 12:27 ` Geert Uytterhoeven
2003-01-29 1:39 ` Brad Parker
2003-01-29 6:40 ` Ralf Baechle
2003-01-28 12:30 ` Maciej W. Rozycki
2003-01-28 12:54 ` Ralf Baechle
2003-01-28 17:53 ` Jun Sun
2003-01-28 19:48 ` Mike Uhler
2003-01-28 19:48 ` Mike Uhler
2003-01-28 21:30 ` [OT] " justinca
2003-01-28 21:39 ` Mike Uhler
2003-01-28 21:39 ` Mike Uhler
2003-01-29 14:25 ` Ralf Baechle
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