From: Takao Indoh <indou.takao@soft.fujitsu.com>
To: linux-ia64@vger.kernel.org
Subject: Re: INIT dumps broken?
Date: Mon, 27 Sep 2004 13:34:15 +0000 [thread overview]
Message-ID: <CEC4A496AE6233indou.takao@soft.fujitsu.com> (raw)
In-Reply-To: <200409141450.i8EEotfk029379@napali.hpl.hp.com>
On Thu, 16 Sep 2004 00:14:11 +1000, Keith Owens wrote:
>On Wed, 15 Sep 2004 00:56:15 -0700,
>David Mosberger <davidm@napali.hpl.hp.com> wrote:
>>>>>>> On Wed, 15 Sep 2004 17:16:47 +1000, Keith Owens <kaos@sgi.com> said:
>>
>> Keith> The use of 0xa.. for cpu 0 is causing an MCA when cpu 0
>> Keith> receives INIT.
>>
>>The MINSTATE_PHYS-version of MINSTATE_GET_CURRENT() looks broken to
>>me. Perhaps changing "dep reg=0,reg,61,3" to a "tpa" is all that's
>>needed there. Can someone check this out? I probably won't get to it
>>today and will be on vacation starting tomorrow.
>
>Agreed that MINSTATE_PHYS is broken. Not sure that tpa is reliable
>during INIT/MCA, especially as one of the possible causes of an MCA is
>an invalid tlb.
>
>Can anybody describe why cpu 0 changed from 0xe... to 0xa... for the
>idle task between 2.6.7-rc3 and 2.6.8?
MINSTATE_END_SAVE_MIN_PHYS is also wrong?
#define MINSTATE_END_SAVE_MIN_PHYS
or r12=r12,r14; /* make sp a kernel virtual address */
or r13=r13,r14; /* make `current' a kernel virtual address */
;;
In the case of swapper on cpu0, it calculates wrong address.
If address of swapper on cpu0 is a000000100634000, this macro
sets r13 to e000000100634000.
Regards,
Takao Indoh
next prev parent reply other threads:[~2004-09-27 13:34 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-14 14:50 INIT dumps broken? David Mosberger
2004-09-14 18:42 ` Luck, Tony
2004-09-15 7:16 ` Keith Owens
2004-09-15 7:56 ` David Mosberger
2004-09-15 14:14 ` Keith Owens
2004-09-15 15:35 ` Luck, Tony
2004-09-15 16:00 ` Kazuto Miyoshi
2004-09-15 17:35 ` Luck, Tony
2004-09-15 21:38 ` Russ Anderson
2004-09-15 22:23 ` Luck, Tony
2004-09-16 6:49 ` Christian Hildner
2004-09-16 13:51 ` Kazuto Miyoshi
2004-09-27 13:34 ` Takao Indoh [this message]
2004-09-27 23:03 ` Keith Owens
2004-09-28 0:03 ` Takao Indoh
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