From: Linus Torvalds <torvalds@osdl.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andrew Morton <akpm@osdl.org>,
hch@infradead.org, linux-mm@kvack.org,
Anton Blanchard <anton@samba.org>
Subject: Re: mapped page in prep_new_page()..
Date: Fri, 27 Feb 2004 07:32:57 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.58.0402270709152.2563@ppc970.osdl.org> (raw)
In-Reply-To: <1077878329.22925.321.camel@gaston>
On Fri, 27 Feb 2004, Benjamin Herrenschmidt wrote:
>
> > Heh. I've had this G5 thing for a couple of weeks, I'm not very good at
> > reading the oops dump either ;)
>
> DAR is the access address for a 300 trap
Yeah, that makes complete sense now. "DAR" and "300 trap". I should have
seen it immediately.
I'm not entirely sure if it's just me being very very used to x86, but
let's see what Linux historically (ie on an x86) prints out on a kernel
page fault:
Unable to handle kernel paging request at virtual address 41648370
printing eip:
c013f6bc
...
and here's what ppc64 prints out:
Oops: Kernel access of bad area, sig: 11 [#1]
NIP: C00000000008D7C4 XER: 0000000020000000 LR: C000000000086F70
REGS: c00000007a43b7f0 TRAP: 0300 Not tainted
...
And I'm sure it's clear as glass what that's all about.
Can you read your assembly language too? IBM people must just be smarter
than the rest of us.
Linus
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next prev parent reply other threads:[~2004-02-27 15:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-27 6:46 Linus Torvalds
2004-02-27 6:58 ` Andrew Morton
2004-02-27 7:11 ` Anton Blanchard
2004-02-27 7:21 ` Andrew Morton
2004-02-27 7:30 ` Linus Torvalds
2004-02-27 7:31 ` Anton Blanchard
2004-02-27 10:38 ` Benjamin Herrenschmidt
2004-02-27 15:32 ` Linus Torvalds [this message]
2004-02-27 15:38 ` Anton Blanchard
2004-02-27 22:06 ` Benjamin Herrenschmidt
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