From: Alex Shi <alex.shi@intel.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Len Brown <len.brown@intel.com>,
Changlong Xie <changlongx.xie@intel.com>,
linux-acpi@vger.kernel.org, lkp@linux.intel.com
Subject: Re: [LKP] Commit ac3ebafa81a makes NHM EX/EP machines hung out since 3.9-rc1
Date: Wed, 27 Mar 2013 21:28:18 +0800 [thread overview]
Message-ID: <5152F3F2.3080900@intel.com> (raw)
In-Reply-To: <5152EFEB.7030107@linaro.org>
On 03/27/2013 09:11 PM, Daniel Lezcano wrote:
> Hi Alex,
>
> could you elaborate a bit the explanation. I don't see where is the
> analysis of the bug. Why do we have this stack trace ?
I also don't know much details of the mwait setting for cpu idle, and
can not reproduce the ops on my box. Most of time the nhm box is just hang.
Maybe BIOS setting have bugs and your change is just expose them.
but it is clear inappropriate to change percpu cstate to a unified
unique value, while left lots of percpu struct service for this. A
example of x86, you can look into arch/x86/kernel/acpi/cstate.c and
other acpi head files.
--
Thanks
Alex
next prev parent reply other threads:[~2013-03-27 13:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20130313022759.GA120840@bee>
2013-03-26 1:44 ` Commit ac3ebafa81a makes NHM EX/EP machines hung out since 3.9-rc1 Brown, Len
2013-03-26 2:01 ` Xie, ChanglongX
2013-03-26 15:21 ` [LKP] " Alex Shi
2013-03-26 21:11 ` Daniel Lezcano
2013-03-27 4:39 ` Alex Shi
2013-03-27 13:11 ` Daniel Lezcano
2013-03-27 13:28 ` Alex Shi [this message]
2013-03-27 16:36 ` Yinghai Lu
2013-03-28 0:40 ` Rafael J. Wysocki
2013-03-28 1:02 ` Alex Shi
2013-04-02 0:13 ` Rafael J. Wysocki
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