From: Zoltan Menyhart <Zoltan.Menyhart_AT_bull.net@nospam.org>
To: linux-ia64@vger.kernel.org
Subject: Machine check when executing ptc.ga
Date: Thu, 13 Nov 2003 16:21:02 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106874043202631@msgid-missing> (raw)
I've got a machine check when executing ptc.ga inside
ia64_global_tlb_purge() on an Intel Tiger box. The CPUs are:
family : Itanium 2
model : 1
revision : 5
The failing instruction is:
ptc.ga r32,r34;;
and r32 = a0000000 00000000, r34 = 00000000 00000040.
The Intel SDM Vol 3, page 3:200 says about the ptc.* instructions:
"Interruptions: Machine Check abort: Register NaT Consumption fault"
I checked with an ITP just before executing ptc.ga, the NaT bits
for r32 and r34 are 0.
What is the reason of this machine check?
Is there something non documented problem with ptc.ga ?
(I'm on a 2.4.20, but a ptc.ga should be the same...)
Thank you in advance.
Zoltan Menyhart
next reply other threads:[~2003-11-13 16:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-13 16:21 Zoltan Menyhart [this message]
2003-11-13 16:43 ` Machine check when executing ptc.ga Luck, Tony
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