Thread (4 messages) 4 messages, 2 authors, 2021-01-11

Re: "blk-mq: Use llist_head for blk_cpu_done" causing warnings

From: Jens Axboe <axboe@kernel.dk>
Date: 2020-12-18 15:23:13

On 12/18/20 8:18 AM, Sebastian Andrzej Siewior wrote:
On 2020-12-18 08:02:59 [-0700], Jens Axboe wrote:
quoted
Hi Sebastian,
Hi Jens,
quoted
I'm running into these when that last patch is applied:

NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!!

on at least my kvm test bed on the laptop. I'm going to revert this
series for now.
Okay. Can you keep #1 from the series?
Sure, we can keep this one. I did verify that only the last part of
that series caused issues.
Anyway, could you please throw a .config and the test in my inbox so I
can reproduce it and then I will look at this next year.
Attached. The test is just booting my vm, haven't even started running
anything when it triggers. It also seems to be happening throughout
the vm running, at a pretty low rate though.

-- 
Jens Axboe

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