From: Johannes Berg <johannes@sipsolutions.net>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: illegal instructions / irqs disabled warning
Date: Wed, 14 Dec 2005 16:13:11 +0100 [thread overview]
Message-ID: <1134573191.3875.18.camel@localhost> (raw)
In-Reply-To: <D5163F2D-A7C9-47E2-BE8D-E291B6C98A40@kernel.crashing.org>
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On Wed, 2005-12-14 at 09:07 -0600, Kumar Gala wrote:
> It is, we just need to ensure that the user page we are copying from
> is in memory.
So in the interrupt handler we need to ensure this and then call
__copy_from_user_inatomic instead?
> But, now that I go back and look at your log message, its odd. I
> didn't expect ProgramExceptions to be executed with the MSR[EE] = 0.
> Now, I'm wondering why that is.
Hm. I can tell you what I did: Something like
mtspr 940, r3
in userland :)
Not sure if it was 940, might have been one of the other registers
reserved for performance monitoring.
johannes
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next prev parent reply other threads:[~2005-12-14 15:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-14 14:05 illegal instructions / irqs disabled warning Johannes Berg
2005-12-14 14:41 ` Kumar Gala
2005-12-14 14:49 ` Johannes Berg
2005-12-14 15:07 ` Kumar Gala
2005-12-14 15:13 ` Johannes Berg [this message]
2005-12-14 21:46 ` Andy Fleming
2005-12-15 9:40 ` Johannes Berg
2005-12-14 22:07 ` Paul Mackerras
2005-12-14 22:29 ` Kumar Gala
2005-12-15 9:44 ` Johannes Berg
2005-12-15 14:04 ` Kumar Gala
2005-12-15 14:10 ` Johannes Berg
2005-12-15 15:47 ` Kumar Gala
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