Re: PATCH: 2.6.26-rc8: Fix IRQF_DISABLED for shared interrupts
From: Stefan Becker
Date: Mon Jun 30 2008 - 05:42:36 EST
Hi,
ext David Brownell wrote:
And it looks plausible to me. Seems like this patch (or a variant)
should be merged for 2.6.26-final, yes? Disregarding IRQF_DISABLED
has -- as you noted -- significant potential for oopsage.
It seems IRQF_SHARED | IRQF_DISABLED has already been discussed several
times on LKML:
<http://thread.gmane.org/gmane.linux.kernel/638251>
<http://thread.gmane.org/gmane.linux.kernel/561205>
Especially this message
<http://thread.gmane.org/gmane.linux.kernel/561205/focus=561222>
makes me think that Linus will reject my proposed patch for the lockup
problem as it implements choice (c) on his list.
Alan: should I try to implement his choice (f) insteadn, i.e. drop
IRQF_DISABLED from USB HCD interrupts and disable interrupts in
usb_hcd_irq() instead?
Regards,
Stefan
---
Stefan Becker
E-Mail: Stefan.Becker@xxxxxxxxx
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