linux-kernel - Re: [PATCH] locking/lockdep: add debug_show_all_lock

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Date:   Tue, 30 Aug 2022 18:57:25 +0900
From:   Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To:     Waiman Long <longman@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
        Boqun Feng <boqun.feng@...il.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Shaokun Zhang <zhangshaokun@...ilicon.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Petr Mladek <pmladek@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ben Dooks <ben.dooks@...ive.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Xiaoming Ni <nixiaoming@...wei.com>,
        John Ogness <john.ogness@...utronix.de>,
        LKML <linux-kernel@...r.kernel.org>,
        syzkaller-bugs <syzkaller-bugs@...glegroups.com>
Subject: Re: [PATCH] locking/lockdep: add debug_show_all_lock_holders()

Peter and Waiman, can we apply this patch?

On 2022/08/12 20:50, Tetsuo Handa wrote:
> On 2022/08/11 20:32, Tetsuo Handa wrote:
>> Changing debug_locks behavior is a future patch. For now, this patch alone
>> will help debugging Greg's usb.git#usb-testing tree which is generating
>> many "INFO: task hung in" reports.