From: Borislav Petkov <bp@alien8.de>
To: "Luck, Tony" <tony.luck@intel.com>,
Andy Lutomirski <luto@amacapital.net>
Cc: Oleg Nesterov <oleg@redhat.com>, X86 ML <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Andi Kleen <andi@firstfloor.org>, kvm ML <kvm@vger.kernel.org>
Subject: Re: [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace
Date: Thu, 13 Nov 2014 22:23:55 +0100 [thread overview]
Message-ID: <20141113212355.GH14070@pd.tnic> (raw)
In-Reply-To: <20141113105936.GA14070@pd.tnic>
On Thu, Nov 13, 2014 at 11:59:37AM +0100, Borislav Petkov wrote:
> I've been thinking about it recently too - adding MCA functionality to
> qemu/kvm could be very useful, especially the thresholding stuff, for
> testing RAS kernel code.
Btw, qemu monitor has a mce injection command with which I was able
to tickle some response from the guest kernel. I'll play more with it
tomorrow and try to tickle a response from the memory failure code.
[ 195.328466] Disabling lock debugging due to kernel taint
[ 195.328466] [Hardware Error]: System Fatal error.
[ 195.328466] [Hardware Error]: CPU:1 (10:2:3) MC4_STATUS[Over|UE|MiscV|PCC|AddrV|UECC]: 0xfe002000001f012b
[ 195.328466] [Hardware Error]: MC4_ADDR: 0x0000000000000000
[ 195.328466] [Hardware Error]: MC4 Error (node 1): ECC Error in the Probe Filter directory.
[ 195.328466] [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: WR
[ 195.328466] mce: [Hardware Error]: CPU 1: Machine Check Exception: 3 Bank 4: fe002000001f012b
[ 195.328466] mce: [Hardware Error]: RIP 10:<ffffffff8100e0b5> {default_idle+0x25/0x240}
[ 195.328466] mce: [Hardware Error]: TSC b9e2f56f95 MISC d1d1dad1deadbeef
[ 195.328466] mce: [Hardware Error]: PROCESSOR 2:100f23 TIME 1415915466 SOCKET 1 APIC 1 microcode 1000065
[ 195.328466] [Hardware Error]: System Fatal error.
[ 195.328466] [Hardware Error]: CPU:1 (10:2:3) MC4_STATUS[Over|UE|MiscV|PCC|AddrV|UECC]: 0xfe002000001f012b
[ 195.328466] [Hardware Error]: MC4_ADDR: 0x0000000000000000
[ 195.328466] [Hardware Error]: MC4 Error (node 1): ECC Error in the Probe Filter directory.
[ 195.328466] [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: WR
[ 195.328466] mce: [Hardware Error]: Machine check: Invalid
[ 195.328466] Kernel panic - not syncing: Fatal machine check on current CPU
[ 195.328466] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffff9fffffff)
[ 195.328466] ---[ end Kernel panic - not syncing: Fatal machine check on current CPU
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
prev parent reply other threads:[~2014-11-13 21:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <c2522bcacf5db9a25a819a8756502edb1d2ca10f.1415739239.git.luto@amacapital.net>
[not found] ` <20141112220058.GA5295@redhat.com>
[not found] ` <CALCETrWA5z7-1fiz_9N0Qi2OR5s1jCkHiynCtTD_+9taOBs-Mg@mail.gmail.com>
[not found] ` <3908561D78D1C84285E8C5FCA982C28F3292BAB4@ORSMSX114.amr.corp.intel.com>
[not found] ` <CALCETrU8uyc4nu-5MBXQR0PY0rexUhPkuPRLK+gWt0gEWMDhTA@mail.gmail.com>
[not found] ` <3908561D78D1C84285E8C5FCA982C28F3292BD44@ORSMSX114.amr.corp.intel.com>
2014-11-13 10:59 ` [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace Borislav Petkov
2014-11-13 21:23 ` Borislav Petkov [this message]
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