From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>,
LKML <linux-kernel@vger.kernel.org>,
"Linux/m68k" <linux-m68k@vger.kernel.org>
Subject: Re: [patch 1/6] hardirq: Make hardirq bits generic
Date: Tue, 12 Nov 2013 15:09:42 +0100 [thread overview]
Message-ID: <CAMuHMdX+dGkOK==kfJAzmnfjz35gTNCazB84nhL4SmxTWX9tjQ@mail.gmail.com> (raw)
In-Reply-To: <alpine.DEB.2.02.1311112031220.30673@ionos.tec.linutronix.de>
Hi Thomas,
On Mon, Nov 11, 2013 at 8:34 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> Finally found the issue. The patch below fixes the problem here. The
> little missing detail is, that I zapped GET_CURRENT() assuming blindly
> that this is only needed for the preempt_count hackery. But in fact
> the world and some more depends on it which leads to interesting
> explosions.
Yes, GET_CURRENT() sets up the current task in %a2.
Many thanks for tracking this down!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2013-11-12 14:09 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-17 9:10 [PATCH 00/11] preempt_count rework -v3 Peter Zijlstra
2013-09-17 9:10 ` [PATCH 01/11] x86: Use asm goto to implement better modify_and_test() functions Peter Zijlstra
2013-09-18 18:44 ` Linus Torvalds
[not found] ` <4ec87843-c29a-401a-a54f-2cd4d61fba62@email.android.com>
2013-09-19 8:31 ` Andi Kleen
2013-09-19 9:39 ` Ingo Molnar
2013-09-20 4:43 ` H. Peter Anvin
2013-09-17 9:10 ` [PATCH 02/11] sched, rcu: Make RCU use resched_cpu() Peter Zijlstra
2013-09-17 14:40 ` Peter Zijlstra
2013-09-23 16:55 ` Paul E. McKenney
2013-09-23 21:18 ` Paul E. McKenney
2013-09-24 8:07 ` Peter Zijlstra
2013-09-24 13:37 ` Paul E. McKenney
2013-09-17 9:10 ` [PATCH 03/11] sched: Remove {set,clear}_need_resched Peter Zijlstra
2013-09-17 9:10 ` [PATCH 04/11] sched, idle: Fix the idle polling state logic Peter Zijlstra
2013-09-17 9:10 ` [PATCH 05/11] sched: Introduce preempt_count accessor functions Peter Zijlstra
2013-09-17 9:10 ` [PATCH 06/11] sched: Add NEED_RESCHED to the preempt_count Peter Zijlstra
2013-09-17 9:10 ` [PATCH 07/11] sched, arch: Create asm/preempt.h Peter Zijlstra
2013-09-17 9:10 ` [PATCH 08/11] sched: Create more preempt_count accessors Peter Zijlstra
2013-09-17 9:10 ` [PATCH 09/11] sched: Extract the basic add/sub preempt_count modifiers Peter Zijlstra
2013-09-17 9:10 ` [PATCH 10/11] sched, x86: Provide a per-cpu preempt_count implementation Peter Zijlstra
2013-09-17 9:10 ` [PATCH 11/11] sched, x86: Optimize the preempt_schedule() call Peter Zijlstra
2013-09-17 20:23 ` Peter Zijlstra
2013-09-17 10:53 ` [PATCH 00/11] preempt_count rework -v3 Ingo Molnar
2013-09-17 11:22 ` Peter Zijlstra
2013-09-17 18:53 ` [patch 0/6] Make all preempt_count related constants generic Thomas Gleixner
2013-09-17 18:53 ` [patch 1/6] hardirq: Make hardirq bits generic Thomas Gleixner
2013-09-17 20:00 ` Geert Uytterhoeven
2013-09-17 21:24 ` Thomas Gleixner
2013-09-18 14:06 ` Thomas Gleixner
2013-09-19 15:14 ` Thomas Gleixner
2013-09-19 17:02 ` Andreas Schwab
2013-09-19 18:19 ` Geert Uytterhoeven
2013-09-20 9:26 ` Thomas Gleixner
2013-11-04 12:06 ` Thomas Gleixner
2013-11-04 19:44 ` Geert Uytterhoeven
2013-11-04 19:44 ` Geert Uytterhoeven
2013-11-06 17:23 ` Thomas Gleixner
2013-11-07 14:12 ` Geert Uytterhoeven
2013-11-07 16:39 ` Thomas Gleixner
2013-11-10 8:49 ` Michael Schmitz
2013-11-10 9:12 ` Geert Uytterhoeven
2013-11-11 14:11 ` Thomas Gleixner
2013-11-11 19:34 ` Thomas Gleixner
2013-11-11 20:52 ` Thomas Gleixner
2013-11-12 6:56 ` Michael Schmitz
2013-11-12 6:56 ` Michael Schmitz
2013-11-12 8:44 ` schmitz
2013-11-12 8:44 ` schmitz
2013-11-12 15:08 ` Geert Uytterhoeven
2013-11-13 19:42 ` [tip:irq/urgent] m68k: Simplify low level interrupt handling code tip-bot for Thomas Gleixner
2013-11-12 14:09 ` Geert Uytterhoeven [this message]
2013-11-11 19:42 ` [patch 1/6] hardirq: Make hardirq bits generic Andreas Schwab
2013-11-12 9:18 ` Thomas Gleixner
2013-11-13 19:42 ` [tip:irq/urgent] " tip-bot for Thomas Gleixner
2013-09-17 18:53 ` [patch 2/6] h8300: Use schedule_preempt_irq Thomas Gleixner
2013-09-20 17:41 ` Guenter Roeck
2013-09-20 21:46 ` Thomas Gleixner
2013-09-17 18:53 ` [patch 3/6] m32r: Use preempt_schedule_irq Thomas Gleixner
2013-11-13 19:42 ` [tip:irq/urgent] " tip-bot for Thomas Gleixner
2013-09-17 18:53 ` [patch 5/6] sparc: " Thomas Gleixner
2013-09-17 22:54 ` David Miller
2013-09-17 23:23 ` Thomas Gleixner
2013-09-18 0:12 ` David Miller
2013-11-13 19:43 ` [tip:irq/urgent] " tip-bot for Thomas Gleixner
2013-09-17 18:53 ` [patch 4/6] ia64: " Thomas Gleixner
2013-11-13 19:43 ` [tip:irq/urgent] " tip-bot for Thomas Gleixner
2013-11-20 19:59 ` [patch 4/6] " Tony Luck
2013-11-20 20:57 ` Thomas Gleixner
2013-11-21 11:41 ` Thomas Gleixner
2013-11-21 12:39 ` Frederic Weisbecker
2013-11-21 13:06 ` Peter Zijlstra
2013-11-21 13:30 ` Thomas Gleixner
2013-11-21 18:57 ` Tony Luck
2013-11-26 18:37 ` Tony Luck
2013-11-26 18:58 ` Peter Zijlstra
2013-11-27 13:36 ` Ingo Molnar
2013-11-27 14:07 ` [tip:sched/urgent] sched: Expose preempt_schedule_irq() tip-bot for Thomas Gleixner
2013-09-17 18:53 ` [patch 6/6] preempt: Make PREEMPT_ACTIVE generic Thomas Gleixner
2013-09-18 10:48 ` Peter Zijlstra
2013-11-13 19:43 ` [tip:irq/urgent] " tip-bot for Thomas Gleixner
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