linux-kernel - Re: [Question] softlockup in run_timer

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Date:   Fri, 5 May 2023 19:37:41 +0800
From:   "liujian (CE)" <liujian56@...wei.com>
To:     John Stultz <jstultz@...gle.com>
CC:     Frank Woo <frankwoo@...gle.com>, Rhine Wu <Rhinewuwu@...gle.com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "sboyd@...nel.org" <sboyd@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: Re: [Question] softlockup in run_timer_softirq



On 2023/5/4 10:59, John Stultz wrote:
> On Wed, May 3, 2023 at 6:50 PM liujian (CE) <liujian56@...wei.com> wrote:
>> On 2023/5/2 11:06, John Stultz wrote:
>>> So I wanted to revive this old thread, as Frank Woo mentioned his team
>>> has seen a similar issue as well.
>>>
>>> Liujian: I'm curious if you've made any further progress with your
>>> adapted patch ontop of PeterZ's softirq_needs_break patch series?
>>>
>> Hi John,
>>     Only the commit ("softirq, timer: Use softirq_needs_break()") is
>> added to the patchset of Peter, and no other modification is made.
>>> Might it be worth re-submitting the whole series for consideration upstream?
>>>
>> I agree very much and expect, because we often encounter similar
>> problems when doing fuzzy tests (especially when the test machine is poor).
> 
> Ok. Will you submit the series + your patch to the list for review and
> consideration then?
> 
The patch[1] has been sent out. Please help review it. Thank you very much.
[1] 
https://lore.kernel.org/lkml/20230505113315.3307723-1-liujian56@huawei.com/

> Please include Frank and Rhine on CC so they can validate and provide
> Tested-by: tags if it works for them as well.
> 
> thanks
> -john