From: peterz@infradead.org
To: Joerg Vehlow <lkml@jv-coder.de>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Huang Ying <ying.huang@intel.com>,
linux-kernel@vger.kernel.org,
Joerg Vehlow <joerg.vehlow@aox-tech.de>
Subject: Re: [BUG RT] dump-capture kernel not executed for panic in interrupt context
Date: Mon, 7 Sep 2020 13:46:18 +0200 [thread overview]
Message-ID: <20200907114618.GR2674@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <95d7a489-a295-1c11-ac62-83e941ed3a87@jv-coder.de>
On Mon, Sep 07, 2020 at 12:51:37PM +0200, Joerg Vehlow wrote:
> Hi,
>
> I guess there is currently no other way than to use something like Steven
> proposed. I implemented and tested the attached patch with a module,
> that triggers the soft lockup detection and it works as expected.
> I did not use inline functions, but normal function implemented in
> kexec_core,
> because there is nothing time critical here.
> I also added the mutex_lock to the trylock variant, because then the unlock
> function can be the same for both lock functions.
>
> What do you think?
I think it's too complicated for that is needed, did you see my
suggestion from a year ago? Did i miss something obvious?
next prev parent reply other threads:[~2020-09-07 11:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 11:41 Joerg Vehlow
2020-05-28 12:46 ` Steven Rostedt
2020-07-22 4:30 ` Joerg Vehlow
2020-07-22 20:51 ` Steven Rostedt
2020-07-27 23:36 ` Andrew Morton
2020-08-21 10:25 ` Joerg Vehlow
2020-08-21 15:08 ` Steven Rostedt
2020-08-21 20:47 ` Andrew Morton
2020-08-21 21:03 ` Steven Rostedt
2020-08-22 12:32 ` peterz
2020-08-22 23:49 ` Steven Rostedt
2020-09-07 11:41 ` peterz
2020-09-07 12:49 ` Valentin Schneider
2020-09-14 19:00 ` Steven Rostedt
2020-09-07 10:51 ` Joerg Vehlow
2020-09-07 11:46 ` peterz [this message]
2020-09-07 12:03 ` Joerg Vehlow
2020-09-07 16:23 ` peterz
2020-09-08 5:48 ` Joerg Vehlow
2020-09-09 5:46 ` Joerg Vehlow
2020-09-11 22:48 ` Eric W. Biederman
2020-09-14 6:03 ` Joerg Vehlow
2020-09-14 16:46 ` Eric W. Biederman
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