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From: Thomas Gleixner <tglx@linutronix.de>
To: Hanjun Guo <guohanjun@huawei.com>,
	Guenter Roeck <linux@roeck-us.net>,
	Xiaoming Ni <nixiaoming@huawei.com>
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
	mingo@redhat.com, will@kernel.org, longman@redhat.com,
	boqun.feng@gmail.com, wangle6@huawei.com, xiaoqian9@huawei.com,
	shaolexi@huawei.com, linux-acpi@vger.kernel.org,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Xiongfeng Wang <wangxiongfeng2@huawei.com>
Subject: Re: [PATCH] semaphore: Add might_sleep() to down_*() family
Date: Tue, 31 Aug 2021 14:20:13 +0200	[thread overview]
Message-ID: <87y28hdcw2.ffs@tglx> (raw)
In-Reply-To: <9471f03d-942d-2143-5d87-8ec98bc38ec3@huawei.com>

On Tue, Aug 31 2021 at 19:39, Hanjun Guo wrote:
> On 2021/8/31 19:13, Guenter Roeck wrote:
>> This patch results in the following traceback on all arm64 boots with
>> EFI BIOS.
>> 
>> The problem is only seen with CONFIG_ACPI_PPTT=y, and thus only on arm64.
>
> I Cced Xiongfeng, he sent a patch to fix this issue over a month ago:
>
> https://lore.kernel.org/linux-arm-kernel/20210720112635.38565-1-wangxiongfeng2@huawei.com/T/

OMG. None of this is necessary.

  reply	other threads:[~2021-08-31 12:20 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-09  2:12 Xiaoming Ni
2021-08-09  3:01 ` Waiman Long
2021-08-09  3:51   ` Xiaoming Ni
2021-08-09 12:52     ` Waiman Long
2021-08-09 14:33       ` Xiaoming Ni
2021-08-13 17:27   ` Thomas Gleixner
2021-08-13 18:47     ` Waiman Long
2021-08-13 14:43 ` Will Deacon
2021-08-23  9:39 ` [tip: locking/core] locking/semaphore: " tip-bot2 for Xiaoming Ni
2021-08-31 11:13 ` [PATCH] semaphore: " Guenter Roeck
2021-08-31 11:39   ` Hanjun Guo
2021-08-31 12:20     ` Thomas Gleixner [this message]
2021-08-31 11:40   ` Peter Zijlstra
2021-08-31 12:13   ` Thomas Gleixner
2021-08-31 12:34     ` Will Deacon
2021-08-31 17:42     ` Guenter Roeck
2021-09-01  8:37     ` [tip: smp/urgent] drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() tip-bot2 for Thomas Gleixner

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