From: Thomas Gleixner <tglx@linutronix.de>
To: kernel test robot <fengguang.wu@intel.com>
Cc: LKP <lkp@01.org>,
xen-devel@lists.xenproject.org, kasan-dev@googlegroups.com,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
Ingo Molnar <mingo@kernel.org>,
wfg@linux.intel.com
Subject: Re: 92a0f81d89 ("x86/cpu_entry_area: Move it out of the fixmap"): BUG: kernel hang in boot stage
Date: Sat, 23 Dec 2017 19:40:34 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.20.1712231939070.1853@nanos> (raw)
In-Reply-To: <5a3e8fc0.twXCoyu5pJQz+3SI%fengguang.wu@intel.com>
On Sun, 24 Dec 2017, kernel test robot wrote:
> Greetings,
>
> 0day kernel testing robot got the below dmesg and the first bad commit is
>
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/pti
>
> commit 92a0f81d89571e3e8759366e050ee05cc545ef99
> Author: Thomas Gleixner <tglx@linutronix.de>
> AuthorDate: Wed Dec 20 18:51:31 2017 +0100
> Commit: Ingo Molnar <mingo@kernel.org>
> CommitDate: Fri Dec 22 20:13:05 2017 +0100
>
> x86/cpu_entry_area: Move it out of the fixmap
Yes, I'm an idiot.
for (; start < end; start += PMD_SIZE)
which works fine when start + PMD_SIZE does not wrap around to 0 ....
Fix is on the way to git.
Thanks,
tglx
prev parent reply other threads:[~2017-12-23 18:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-23 17:17 kernel test robot
2017-12-23 18:40 ` Thomas Gleixner [this message]
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