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From: Wang Shuaiwei <wangshuaiwei1@xiaomi.com>
To: <axboe@kernel.dk>, <bigeasy@linutronix.de>, <frederic@kernel.org>
CC: <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<tglx@kernel.org>, <wanghui33@xiaomi.com>, <wangshuaiwei1@xiaomi.com>
Subject: Re: [PATCH] tick/block: Add BLOCK_SOFTIRQ to the hotplug safe mask
Date: Thu, 17 Sep 2026 17:30:53 +0800
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On Fri, 4 Sep 2026 14:45:06 +0800, Wang Shuaiwei wrote:
> During CPU-hotplug stress testing combined with an I/O
> workload, the following message is observed:
> 
>   "NOHZ tick-stop error: local softirq work is pending, handler #10!!!"
> 
> On CPU offline, ksoftirqd is parked at CPUHP_AP_SMPBOOT_THREADS while
> the CPU still takes interrupts. A block completion raised after that
> ...

Hi,

Just wanted to follow up on this patch.
I'd appreciate any feedback or suggestions when you get a chance.

Thanks,
Shuaiwei