linux-kernel - Re: [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG

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Message-ID: <CA+55aFwrovZf-LYa=_SyMNvqQkTfxREm0YuzDk8wJy+Krs0xzw@mail.gmail.com>
Date:	Mon, 7 Oct 2013 19:51:37 -0700
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Fengguang Wu <fengguang.wu@...el.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	xen-devel@...ts.xenproject.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [xen] double fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC

On Mon, Oct 7, 2013 at 7:14 PM, Fengguang Wu <fengguang.wu@...el.com> wrote:
>
> I got a call trace containing parport_pc_probe_port() (is it the
> culprit?) after recompiling kernel with
>
> CONFIG_DEBUG_OBJECTS_TIMERS=y
>
> and booting with "ignore_loglevel". Here is the log for two kernel boots.

Ok, so it's definitely parport_pc. I don't see what it would do wrong, though.

               Linus
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