From: William Lee Irwin III <wli@holomorphy.com>
To: Dmitry Torokhov <dtor_core@ameritech.net>
Cc: linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: 2.6.7-mm6
Date: Wed, 7 Jul 2004 05:55:59 -0700 [thread overview]
Message-ID: <20040707125559.GF21066@holomorphy.com> (raw)
In-Reply-To: <200407070747.16512.dtor_core@ameritech.net>
On Wednesday 07 July 2004 01:37 am, William Lee Irwin III wrote:
>> This suspicion is correct. It boots normally with the patch you posted
>> to do that registration outside the interrupts-off critical section
>> applied. Bootlog below.
On Wed, Jul 07, 2004 at 07:47:16AM -0500, Dmitry Torokhov wrote:
> Great! I am still somewhat confused why it started locking up with sysfs
> patch - even before sunzilog was calling serio_register_port with interrupts
> off and serio core was downing it's serio_sem as the very first thing. Since
> at the time sunzilog registers its ports no serio drivers have been registered
> yet, effectively the only change introduced by sysfs patch is the call to
> device_register which takes bus' subsystem rwsem and there really should not
> be any congestion.
> Maybe rwsems can not be touched with interrupts off? Sparc only? Everywhere?
> (I know that you should not normally call functions that may sleep with
> interrupts off).
CONFIG_PREEMPT enables this to be warned on appropriately. It should
basically never happen unless it's a down_trylock() etc.
-- wli
next prev parent reply other threads:[~2004-07-07 13:05 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-05 9:31 2.6.7-mm6 Andrew Morton
2004-07-05 10:18 ` 2.6.7-mm6 Christoph Hellwig
2004-07-05 10:44 ` 2.6.7-mm6 Christoph Hellwig
2004-07-05 10:32 ` 2.6.7-mm6 Redeeman
2004-07-05 13:54 ` 2.6.7-mm6 Frieder Buerzele
2004-07-05 14:41 ` 2.6.7-mm6 Redeeman
2004-07-05 10:39 ` 2.6.7-mm6 Martin Zwickel
2004-07-05 19:04 ` 2.6.7-mm6 Jurgen Kramer
2004-07-05 20:38 ` 2.6.7-mm6 - ppc32 inconsistent kallsyms data Joseph Fannin
2004-07-05 20:54 ` Andrew Morton
2004-07-06 2:06 ` Keith Owens
2004-07-06 7:31 ` Keith Owens
2004-07-06 7:43 ` Keith Owens
2004-07-06 20:54 ` Joseph Fannin
2004-07-06 9:09 ` Rusty Russell
2004-07-06 12:28 ` Keith Owens
2004-07-05 22:52 ` 2.6.7-mm6: ALSA: vortex_asXtalkGainsAllChan multiple definitions Adrian Bunk
2004-07-05 22:56 ` [patch] 2.6.7-mm6: let CDROM_PKTCDVD depend on experimental Adrian Bunk
2004-07-06 6:49 ` USB Lockups with 2.6.7-mm6, was Re: 2.6.7-mm6 Ralf Hildebrandt
2004-07-06 12:54 ` 2.6.7-mm6 William Lee Irwin III
2004-07-06 17:51 ` 2.6.7-mm6 Dmitry Torokhov
2004-07-06 18:55 ` 2.6.7-mm6 Jan-Benedict Glaw
2004-07-06 23:12 ` 2.6.7-mm6 William Lee Irwin III
2004-07-06 23:55 ` 2.6.7-mm6 William Lee Irwin III
2004-07-07 5:15 ` 2.6.7-mm6 Dmitry Torokhov
2004-07-07 6:37 ` 2.6.7-mm6 William Lee Irwin III
2004-07-07 12:47 ` 2.6.7-mm6 Dmitry Torokhov
2004-07-07 12:55 ` William Lee Irwin III [this message]
2004-07-07 16:31 ` 2.6.7-mm6 Vojtech Pavlik
2004-07-07 17:15 ` 2.6.7-mm6 Dmitry Torokhov
2004-07-07 19:05 ` 2.6.7-mm6 Vojtech Pavlik
2004-07-06 22:34 ` 2.6.7-mm6 Andrew Morton
2004-07-06 22:45 ` 2.6.7-mm6 David S. Miller
2004-07-06 22:52 ` 2.6.7-mm6 William Lee Irwin III
2004-07-06 23:07 ` 2.6.7-mm6 Russell King
2004-07-06 23:36 ` 2.6.7-mm6 William Lee Irwin III
2004-07-07 0:02 ` 2.6.7-mm6 David S. Miller
2004-07-07 2:29 ` 2.6.7-mm6 Nick Piggin
2004-07-07 7:35 ` 2.6.7-mm6 Ingo Molnar
2004-07-07 21:02 ` 2.6.7-mm6 David S. Miller
2004-07-09 2:45 ` 2.6.7-mm6 Nick Piggin
2004-07-09 2:51 ` 2.6.7-mm6 William Lee Irwin III
2004-07-09 5:09 ` 2.6.7-mm6 Nick Piggin
2004-07-09 6:29 ` 2.6.7-mm6 Ingo Molnar
2004-07-09 6:58 ` 2.6.7-mm6 William Lee Irwin III
2004-07-09 7:07 ` 2.6.7-mm6 Nick Piggin
2004-07-09 7:16 ` 2.6.7-mm6 William Lee Irwin III
2004-07-06 14:49 ` 2.6.7-mm6 - USB problems Jesse Stockall
2004-07-07 16:44 ` 2.6.7-mm6 Jesse Barnes
-- strict thread matches above, loose matches on Subject: below --
2004-07-05 14:41 2.6.7-mm6 Martin Knoblauch
2004-07-06 13:42 2.6.7-mm6 Dmitry Torokhov
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