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: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-11 20:56 [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace Andy Lutomirski
2014-11-11 21:36 ` Borislav Petkov
2014-11-11 22:00 ` Luck, Tony
2014-11-11 22:15 ` Andy Lutomirski
2014-11-11 22:12 ` Andy Lutomirski
2014-11-11 22:33 ` Borislav Petkov
2014-11-11 22:40 ` Andy Lutomirski
2014-11-11 23:09 ` Borislav Petkov
2014-11-11 23:21 ` Andy Lutomirski
2014-11-12 0:22 ` Luck, Tony
2014-11-12 0:40 ` Andy Lutomirski
2014-11-12 1:06 ` Luck, Tony
2014-11-12 2:01 ` Andy Lutomirski
2014-11-12 2:06 ` Tony Luck
2014-11-12 10:30 ` Borislav Petkov
2014-11-12 15:48 ` Andy Lutomirski
2014-11-12 16:22 ` Borislav Petkov
2014-11-12 17:17 ` Luck, Tony
2014-11-12 17:30 ` Borislav Petkov
2014-11-13 18:04 ` Borislav Petkov
2014-11-14 21:56 ` Luck, Tony
2014-11-14 22:07 ` Andy Lutomirski
2014-11-17 18:50 ` Borislav Petkov
2014-11-17 19:57 ` Andy Lutomirski
2014-11-17 20:03 ` Borislav Petkov
2014-11-17 20:05 ` Andy Lutomirski
2014-11-17 21:55 ` Luck, Tony
2014-11-17 22:26 ` Andy Lutomirski
2014-11-17 23:16 ` Luck, Tony
2014-11-18 0:05 ` Andy Lutomirski
2014-11-18 0:22 ` Luck, Tony
2014-11-18 0:55 ` Andy Lutomirski
2014-11-18 18:30 ` Luck, Tony
2014-11-18 23:04 ` Andy Lutomirski
2014-11-18 23:26 ` Luck, Tony
2014-11-18 16:12 ` Borislav Petkov
2014-11-12 22:00 ` Oleg Nesterov
2014-11-12 23:17 ` Andy Lutomirski
2014-11-12 23:41 ` Luck, Tony
2014-11-13 0:02 ` Andy Lutomirski
2014-11-13 0:31 ` Luck, Tony
2014-11-13 1:34 ` Andy Lutomirski
2014-11-13 3:03 ` Andy Lutomirski
2014-11-13 18:43 ` Luck, Tony
2014-11-13 22:23 ` Andy Lutomirski
2014-11-13 22:25 ` Andy Lutomirski
2014-11-13 22:33 ` Luck, Tony
2014-11-13 22:47 ` Andy Lutomirski
2014-11-13 23:13 ` Andy Lutomirski
2014-11-14 0:50 ` Andy Lutomirski
2014-11-14 1:20 ` Luck, Tony
2014-11-14 1:36 ` Andy Lutomirski
2014-11-14 17:49 ` Luck, Tony
2014-11-14 19:10 ` Andy Lutomirski
2014-11-14 19:37 ` Luck, Tony
2014-11-14 18:27 ` Luck, Tony
2014-11-14 10:34 ` Borislav Petkov
2014-11-14 17:18 ` Andy Lutomirski
2014-11-14 17:24 ` Borislav Petkov
2014-11-14 17:26 ` Andy Lutomirski
2014-11-14 18:53 ` Borislav Petkov
2014-11-13 10:59 ` Borislav Petkov
2014-11-13 21:23 ` Borislav Petkov [this message]
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