From: Borislav Petkov <bp@alien8.de>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
wfg@linux.intel.com, LKP <lkp@01.org>,
lkml <linux-kernel@vger.kernel.org>,
Fengguang Wu <fengguang.wu@intel.com>,
Eduardo Habkost <ehabkost@redhat.com>,
Josh Poimboeuf <jpoimboe@redhat.com>
Subject: Re: [x86] 5ac0c41bf3: WARNING: CPU: 0 PID: 0 at arch/x86/mm/extable.c:50 ex_handler_rdmsr_unsafe
Date: Wed, 15 Jun 2016 20:07:22 +0200 [thread overview]
Message-ID: <20160615180722.GG30309@pd.tnic> (raw)
In-Reply-To: <CALCETrVcw+t+w0T6FmXffY3Y=XHUpA0JUgzzPOyKybHXyOPa+Q@mail.gmail.com>
On Wed, Jun 15, 2016 at 10:55:34AM -0700, Andy Lutomirski wrote:
> Isn't it this one?
Yes, it is.
> I'm not. If %pF points at some silly helper, we still want the frames below it.
Why silly helper? It points to the rIP where the *MSR instruction is.
Can't get more precise than that.
And yes, %pF is better:
[ 0.030879] unchecked MSR access error: RDMSR from 0x1b0 at rIP: 0xffffffff81026d9f (init_intel_energy_perf.part.3+0xf/0xd0)
Ok, I'll send a patch.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
next prev parent reply other threads:[~2016-06-15 18:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <57614955.l3IQMtSfaGPEBdCy%fengguang.wu@intel.com>
2016-06-15 14:25 ` Borislav Petkov
2016-06-15 14:51 ` Eduardo Habkost
2016-06-15 17:07 ` Borislav Petkov
2016-06-15 14:53 ` Paolo Bonzini
2016-06-15 17:23 ` Andy Lutomirski
2016-06-15 17:50 ` Borislav Petkov
2016-06-15 17:55 ` Andy Lutomirski
2016-06-15 18:07 ` Borislav Petkov [this message]
2016-06-15 18:12 ` Andy Lutomirski
2016-06-15 18:23 ` Borislav Petkov
2016-06-15 18:44 ` Andy Lutomirski
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