From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@osdl.org>,
Thomas Gleixner <tglx@linutronix.de>,
Paul Mackerras <paulus@samba.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>
Subject: Re: [PATCH] genirq: do not mask interrupts by default
Date: Tue, 27 Mar 2007 15:18:05 +1000 [thread overview]
Message-ID: <1174972685.5329.12.camel@localhost.localdomain> (raw)
In-Reply-To: <1174972037.5329.5.camel@localhost.localdomain>
> I missed that one ... thanks for not telling/CC'ing me and not fixing
> powerpc :-( (I know, everybody is supposed to have the bandwidth to read
> all of lkml... I don't).
>
> We need to audit all of our PICs to make sure they can deal with
> disabling an already ack'ed interrupt, which isn't clear.. in fact, that
> might cause some to lose it when re-enabling later on. This is a major
> semantic change and now I just discover it while we are at -rc5 !
>
> I'm concerned that quite a few PICs will not re-emit the interrupt once
> re-enabled.
Note that I'm not opposed to the change at all, I think it's a good
idea, I'm just worried I'm discovering it a bit late and I've seen PICs
broken in some many colorful ways that I'm a bit worried... Oh well...
Ben.
next prev parent reply other threads:[~2007-03-27 5:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200702161759.l1GHxsO8010669@hera.kernel.org>
2007-03-27 5:07 ` [PATCH] genirq: do not mask interrupts by default Benjamin Herrenschmidt
2007-03-27 5:18 ` Benjamin Herrenschmidt [this message]
2007-03-27 7:32 ` Ingo Molnar
2007-03-27 8:04 ` Benjamin Herrenschmidt
2007-01-30 9:33 [patch] " Ingo Molnar
-- strict thread matches above, loose matches on Subject: below --
2006-11-08 2:33 Linux 2.6.19-rc5 Linus Torvalds
2006-11-08 8:52 ` 2.6.19-rc5: known regressions Adrian Bunk
[not found] ` <7813413.118221162987983254.komurojun-mbn@nifty.com>
2006-11-10 12:42 ` Re: Re: 2.6.19-rc5: known regressions :SMP kernel can not generate ISA irq Komuro
2006-11-13 16:02 ` Linus Torvalds
2006-11-13 17:11 ` Eric W. Biederman
2006-11-13 20:44 ` Ingo Molnar
2006-11-13 21:11 ` Eric W. Biederman
2006-11-14 8:14 ` [patch] irq: do not mask interrupts by default Ingo Molnar
2006-11-14 16:10 ` Linus Torvalds
[not found] ` <20061115090427.GA16173@elte.hu>
2006-11-15 16:13 ` [patch] genirq: " Linus Torvalds
2006-11-15 17:46 ` Ingo Molnar
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