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Date:	Sun, 1 Mar 2009 12:52:52 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	linux-kernel@...r.kernel.org, mingo@...hat.com, hpa@...or.com,
	jaswinder@...nel.org, tglx@...utronix.de
Cc:	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perfcounters/core] x86: Basic AMD Support for performance
	counters, disable IRQs


* Jaswinder Singh Rajput <jaswinder@...nel.org> wrote:

> Commit-ID:  15112f89efb79797c0d70ce6759e2438d66d4f59
> Gitweb:     http://git.kernel.org/tip/15112f89efb79797c0d70ce6759e2438d66d4f59
> Author:     Jaswinder Singh Rajput <jaswinder@...nel.org>
> AuthorDate: Sun, 1 Mar 2009 15:02:11 +0530
> Commit:     Ingo Molnar <mingo@...e.hu>
> CommitDate: Sun, 1 Mar 2009 12:43:03 +0100
> 
> x86: Basic AMD Support for performance counters, disable IRQs
> 
> Ingo Molnar reported:
> 
> > The AMD perfcounter patches cause a crash - an Opteron system
> > spontaneous reboots at this point during early bootup:
> >
> > CPU 0/0x4 -> Node 0
> > tseg: 00cfe00000
> > CPU: Physical Processor ID: 0
> > CPU: Processor Core ID: 0
> > using C1E aware idle routine
> > AMD Performance Monitoring support detected.
> > ... num counters:    4
> > ... value mask:      0000000000000000
> > ... fixed counters:  0
> > ... counter mask:    000000000000000f
> > ACPI: Core revision 20081204
> > ftrace: converting mcount calls to 0f 1f 44 00 00
> > ftrace: allocating 16365 entries in 129 pages
> > Setting APIC routing to physical flat
> > masked ExtINT on CPU#0
> > ENABLING IO
> > [reboot]
> 
> Disable the IRQ path for now.

No, this doesnt help - it still crashes.

	Ingo
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