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

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To: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Subject: Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
From: Ramon Fried <rfried.dev@xxxxxxxxx>
Date: Tue, 09 Jun 2020 20:07:06 +0300
Cc: Tom Zanussi <zanussi@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, linux-rt-users <linux-rt-users@xxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Carsten Emde <C.Emde@xxxxxxxxx>, John Kacur <jkacur@xxxxxxxxxx>, Daniel Wagner <wagi@xxxxxxxxx>, Clark Williams <williams@xxxxxxxxxx>, Zhang Xiao <xiao.zhang@xxxxxxxxxxxxx>
In-reply-to: <20200609164213.bshzpfuqgioyvtpm@linutronix.de>
References: <cover.1587675252.git.zanussi@kernel.org> <6d4c92b28c54d8ca687c29043562de943a373547.1587675252.git.zanussi@kernel.org> <CAGi-RUKn6k98H5v9kw7je1MChb4+Uq8EGhKO0nuXNMBy9M1_qw@mail.gmail.com> <b5026121af44601e4318479194357fdb956982f6.camel@kernel.org> <20200609154741.5kesuvl7txz4s3yu@linutronix.de> <e288ef193f743782df48667b6b03122bd025119f.camel@kernel.org> <20200609163446.efp76qbjzkbtl7nk@linutronix.de> <D6892A4E-18F7-4EB7-BA09-BD4DF9079BDE@gmail.com> <34E6C220-A85B-4296-AB8E-62DE6D9DC561@gmail.com> <20200609164213.bshzpfuqgioyvtpm@linutronix.de>
User-agent: K-9 Mail for Android


On June 9, 2020 7:42:13 PM GMT+03:00, Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> 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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Follow-Ups:
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Sebastian Andrzej Siewior

References:
- [PATCH RT 0/2] Linux v4.19.115-rt49-rc1
  - From: zanussi
- [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: zanussi
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Ramon Fried
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Tom Zanussi
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Sebastian Andrzej Siewior
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Tom Zanussi
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Sebastian Andrzej Siewior
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Ramon Fried
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Ramon Fried
- Re: [PATCH RT 1/2] tasklet: Address a race resulting in double-enqueue
  - From: Sebastian Andrzej Siewior

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