linux-kernel - Re: Traceback seen once when running x86 qemu emulation with latest kernel

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Message-ID: <20160807051412.GA24114@nazgul.tnic>
Date:	Sun, 7 Aug 2016 07:14:12 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org
Subject: Re: Traceback seen once when running x86 qemu emulation with latest
 kernel

On Sat, Aug 06, 2016 at 03:41:23PM -0700, Guenter Roeck wrote:
> Hi, I have seen the following traceback once when running the latest mainline in qemu.
> 
> Starting udev
> random: crng init done
> udevd[117]: starting version 182
> Starting Bootlog daemon: bootlogd.
> 
> EXT4-fs (hda): re-mounted. Opts: errors=remount-ro,data=ordered
> ------------[ cut here ]------------
> WARNING: CPU: 0 PID: 1 at ./arch/x86/include/asm/fpu/internal.h:534 fpu__restore+0x120/0x220

We were debugging this but it has gone nowhere AFAIR:

https://lkml.kernel.org/r/20160211192741.GG5565@pd.tnic
https://lkml.kernel.org/r/87d1rk9str.fsf@yhuang-dev.intel.com

-- 
Regards/Gruss,
    Boris.

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