linux-kernel - Re: general protection fault in try_to_wake

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Message-ID: <20180403091333.GZ4082@hirez.programming.kicks-ass.net>
Date:   Tue, 3 Apr 2018 11:13:33 +0200
From:   Peter Zijlstra <peterz@...radead.org>
To:     Petr Mladek <pmladek@...e.com>
Cc:     syzbot <syzbot+d1fe9b7b917f2715c7d4@...kaller.appspotmail.com>,
        linux-kernel@...r.kernel.org, rostedt@...dmis.org,
        sergey.senozhatsky@...il.com, syzkaller-bugs@...glegroups.com,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...nel.org>,
        x86@...nel.org
Subject: Re: general protection fault in try_to_wake_up

On Tue, Apr 03, 2018 at 10:50:03AM +0200, Petr Mladek wrote:
> raw_spin_lock() succeeded here. Therefore lockdep was still working
> at this stage.

What does the success of raw_spin_lock() have to do with lockdep ?