From: Benjamin Herrenschmidt <benh@au1•ibm.com>
To: David Laight <David.Laight@aculab•com>
Cc: PowerPC email list <linuxppc-dev@lists•ozlabs.org>,
Paul Mackerras <paulus@samba•org>,
Anton Blanchard <anton@samba•org>,
'Li Zhong' <zhong@linux•vnet.ibm.com>
Subject: Re: [RFC PATCH] Fix Oops in rtas_stop_self()
Date: Mon, 28 Apr 2014 19:17:34 +1000 [thread overview]
Message-ID: <1398676654.30694.39.camel@pasglop> (raw)
In-Reply-To: <063D6719AE5E284EB5DD2968C1650D6D0F700501@AcuExch.aculab.com>
On Mon, 2014-04-28 at 09:06 +0000, David Laight wrote:
> > Ah, yes, the stack here is obviously at a much higher address than
> 4GB.
>
> Are we talking of physical or virtual addresses here?
> (or even user?)
Real.
> Is there a re-entrancy problem using kernel static data?
Not for this code. This is called as the last thing a CPU does
before returning to firmware.
Cheers,
Ben.
next prev parent reply other threads:[~2014-04-28 9:18 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-25 9:33 [RFC PATCH] Fix Oops in rtas_stop_self() Li Zhong
2014-04-25 12:18 ` Anton Blanchard
2014-04-28 0:26 ` Li Zhong
2014-04-28 9:06 ` David Laight
2014-04-28 9:17 ` Benjamin Herrenschmidt [this message]
2014-04-28 0:29 ` [PATCH] powerpc: " Li Zhong
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