From: Andrew Morton <akpm@digeo.com>
To: "David S. Miller" <davem@redhat.com>
Cc: rmk@arm.linux.org.uk, ak@muc.de, davidm@napali.hpl.hp.com,
anton@samba.org, linux-mm@kvack.org,
Andrea Arcangeli <andrea@suse.de>
Subject: Re: Linus rollup
Date: Wed, 29 Jan 2003 02:26:17 -0800 [thread overview]
Message-ID: <20030129022617.62800a6e.akpm@digeo.com> (raw)
In-Reply-To: <20030129.015134.19663914.davem@redhat.com>
"David S. Miller" <davem@redhat.com> wrote:
>
> From: Russell King <rmk@arm.linux.org.uk>
> Date: Wed, 29 Jan 2003 09:59:49 +0000
>
> /* This function must be called with interrupts disabled
>
> which hasn't been true for some time, and is even less true now that
> local IRQs don't get disabled. Does this matter... for UP?
>
> I disable local IRQs during gettimeofday() on sparc.
>
> These locks definitely need to be taken with IRQs disabled.
> Why isn't x86 doing that?
Darned if I know. Looks like Andrea's kernel will deadlock if
arch/i386/kernel/time.c:timer_interrupt() takes i8253_lock
while that cpu is holding the same lock in do_slow_gettimeoffset().
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next prev parent reply other threads:[~2003-01-29 10:25 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-29 6:07 Linus rollup Andrew Morton
2003-01-29 6:53 ` David Mosberger
2003-01-29 7:25 ` David S. Miller
2003-01-29 9:33 ` Andrew Morton
2003-01-29 9:35 ` David S. Miller
2003-01-29 9:54 ` Anton Blanchard
2003-01-29 9:59 ` Russell King
2003-01-29 9:51 ` David S. Miller
2003-01-29 10:26 ` Andrew Morton [this message]
2003-01-29 22:35 ` Stephen Hemminger
2003-01-29 23:12 ` Andrew Morton
2003-01-30 0:30 ` David S. Miller
2003-01-30 1:27 ` Andrew Morton
2003-01-30 1:24 ` Andi Kleen
2003-01-30 2:01 ` Andrew Morton
2003-01-30 1:35 ` Andrea Arcangeli
2003-01-30 2:00 ` Andrew Morton
2003-01-30 1:50 ` Jeff Garzik
2003-01-30 2:03 ` Andrea Arcangeli
2003-01-30 17:09 ` Stephen Hemminger
2003-01-30 17:15 ` Randy.Dunlap
2003-01-30 17:25 ` Andi Kleen
2003-01-30 17:23 ` Randy.Dunlap
2003-01-30 1:52 ` Richard Henderson
2003-01-30 2:06 ` Andrea Arcangeli
2003-01-30 1:54 ` Andrea Arcangeli
2003-01-30 2:19 ` Andrew Morton
2003-01-30 17:37 ` Stephen Hemminger
2003-01-30 17:50 ` Andrea Arcangeli
2003-01-30 2:00 ` Richard Henderson
2003-01-30 0:46 ` Andrea Arcangeli
2003-01-30 0:43 ` Andrea Arcangeli
2003-01-29 10:16 ` Andrew Morton
2003-01-29 17:04 ` David Mosberger
2003-01-29 17:25 ` Russell King
2003-01-29 19:05 ` David Mosberger
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