From: "Luck, Tony" <tony.luck@intel.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Laura Abbott <labbott@redhat.com>,
Andi Kleen <ak@linux.intel.com>, Jeremy Cline <jcline@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: x86/mce: suspicious RCU usage in 4.13.4
Date: Wed, 1 Nov 2017 13:07:31 -0700 [thread overview]
Message-ID: <20171101200730.dvfhyf6baqphhrtz@intel.com> (raw)
In-Reply-To: <20171101164754.xzzmskl4ngrqc5br@pd.tnic>
On Wed, Nov 01, 2017 at 05:47:54PM +0100, Borislav Petkov wrote:
> On Wed, Nov 01, 2017 at 07:56:20AM -0700, Laura Abbott wrote:
> > Did these get queued up somewhere? I know last week was OSSEU/Ksummit
> > so people may still be playing catch-up.
>
> Ah, thanks for the reminder.
>
> /me goes and dusts it off.
>
> Ok, here it is, injecting some MCEs in a guest seems to work fine,
> mcelog logs them.
>
> Tony?
Yup. I did a bit more testing on bare metal with injection:
1) Just one error
Worked
2) "kill -STOP `pgrep mcelog`" ; inject 5 errors ; "kill -CONT `pgrep mcelog`"
Worked (all five errors reported correctly)
3) "kill -STOP `pgrep mcelog`" ; inject 35 errors ; "kill -CONT `pgrep mcelog`"
mcelog reported Warning: MCE buffer is overflowed.
First 32 (MCE_LOG_LEN) errors reported correctly.
Reviewed-and-tested-by: Tony Luck <tony.luck@intel.com>
-Tony
next prev parent reply other threads:[~2017-11-01 20:07 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-10 19:00 Jeremy Cline
2017-10-10 19:44 ` Borislav Petkov
2017-10-10 20:08 ` Luck, Tony
2017-10-10 20:13 ` Andi Kleen
2017-10-11 11:50 ` Borislav Petkov
2017-10-11 21:34 ` Luck, Tony
2017-10-15 9:40 ` Borislav Petkov
2017-10-16 18:28 ` Luck, Tony
2017-11-01 14:56 ` Laura Abbott
2017-11-01 16:47 ` Borislav Petkov
2017-11-01 20:07 ` Luck, Tony [this message]
2017-11-01 20:28 ` [tip:ras/urgent] x86/mcelog: Get rid of RCU remnants tip-bot for Borislav Petkov
2017-10-11 23:11 ` x86/mce: suspicious RCU usage in 4.13.4 Andi Kleen
2017-10-12 9:02 ` Borislav Petkov
2017-10-12 22:13 ` Andi Kleen
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