From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
rt@linutronix.de, Martin Schwidefsky <schwidefsky@de.ibm.com>,
Anna-Maria Gleixner <anna-maria@linutronix.de>
Subject: Re: [PATCH] cpu/hotplug: fix rollback during error-out in __cpu_disable()
Date: Thu, 7 Apr 2016 17:14:00 +0200 [thread overview]
Message-ID: <57067938.6030908@linutronix.de> (raw)
In-Reply-To: <20160406195133.GB3485@osiris>
On 04/06/2016 09:51 PM, Heiko Carstens wrote:
> This fixes the issue that a second cpu_down() will take forever, if
> __cpu_disable() fails.
Yes. But even without the second take down your CPU isn't complete up.
> However it does not fix the issue that CPU_DOWN_FAILED will be seen on a
> different cpu than the cpu that was supposed to be taken offline.
This is correct. It fixes only the regression you reported.
The CPU_DOWN_FAILED patches are on hold for now.
Sebastian
next prev parent reply other threads:[~2016-04-07 15:14 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-04 10:27 [PATCH] s390/cpum_sf: Remove superfluous SMP function call Anna-Maria Gleixner
2016-04-05 10:49 ` Heiko Carstens
2016-04-05 11:13 ` [PREEMPT-RT] " Sebastian Andrzej Siewior
2016-04-05 11:23 ` Heiko Carstens
2016-04-05 11:36 ` Heiko Carstens
2016-04-05 11:51 ` rcochran
2016-04-05 11:55 ` Heiko Carstens
2016-04-05 11:57 ` Sebastian Andrzej Siewior
2016-04-05 12:11 ` Heiko Carstens
2016-04-05 12:19 ` Sebastian Andrzej Siewior
2016-04-05 15:59 ` [PATCH] cpu/hotplug: fix rollback during error-out in __cpu_disable() Sebastian Andrzej Siewior
2016-04-06 19:51 ` Heiko Carstens
2016-04-07 15:14 ` Sebastian Andrzej Siewior [this message]
2016-04-08 6:19 ` Heiko Carstens
2016-04-08 12:40 ` [PATCH v2] " Sebastian Andrzej Siewior
2016-04-22 7:54 ` [tip:smp/urgent] cpu/hotplug: Fix " tip-bot for Sebastian Andrzej Siewior
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