linux-kernel - Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue

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Message-ID: <61D63A44-E3D9-4E7F-BE08-B887C078F445@gmail.com>
Date:   Tue, 09 Jun 2020 20:07:06 +0300
From:   Ramon Fried <rfried.dev@...il.com>
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
CC:     Tom Zanussi <zanussi@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Carsten Emde <C.Emde@...dl.org>,
        John Kacur <jkacur@...hat.com>, Daniel Wagner <wagi@...om.org>,
        Clark Williams <williams@...hat.com>,
        Zhang Xiao <xiao.zhang@...driver.com>
Subject: Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue



On June 9, 2020 7:42:13 PM GMT+03:00, Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
>On 2020-06-09 19:40:03 [+0300], Ramon Fried wrote:
>> Correction. normal kernel is running with RT enabled, crash kernel
>without. 
>
>no RT and no SMP in your crash kernel? So this information in your
>first
>email would have saved me some time…
Indeed
 I'm truly sorry, I thought our crash kernel is configured as RT as well. 
so, as I understand, if I build the RT kernel without preempt enabled I can hit this bug? 
>
>Sebastian

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