From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linuxppc-dev@ozlabs.org, Matthew Wilcox <matthew@wil.cx>,
linux-kernel@vger.kernel.org,
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Subject: Re: [BUG] 2.6.25-rc5-mm1 kernel panic with "Exception: 501 " on powerpc
Date: Thu, 13 Mar 2008 07:40:06 +1100 [thread overview]
Message-ID: <1205354406.9431.23.camel@pasglop> (raw)
In-Reply-To: <20080312104645.34e58319.akpm@linux-foundation.org>
> Beats me. Maybe we're still enabling interrupts too early. But the new
> semaphore code got fixed (didn't it?)
Won't lockdep/irqtrace warn if that happens ? You don't yet have the
lockdep patches for ppc64 (I'm still trying to find out why they break
iSeries) but it should warn of such a spurrious IRQ enable on other
archs too... At least, from a quick look at the code, it -seems- that it
does have such a test.
Cheers,
Ben.
next prev parent reply other threads:[~2008-03-12 20:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20080311011434.ad8c8d7d.akpm@linux-foundation.org>
2008-03-12 12:55 ` [BUG] 2.6.25-rc5-mm1 kernel panic with "Exception: 501 " on powerpc Kamalesh Babulal
2008-03-12 17:46 ` Andrew Morton
2008-03-12 17:51 ` Matthew Wilcox
2008-03-12 22:26 ` Michael Ellerman
2008-03-12 22:33 ` Matthew Wilcox
2008-03-13 13:02 ` Kamalesh Babulal
2008-03-12 20:40 ` Benjamin Herrenschmidt [this message]
2008-03-12 18:14 ` Badari Pulavarty
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