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Message-ID: <20190816082130.2shhirk53qofn6bj@willie-the-truck> Date: Fri, 16 Aug 2019 09:21:31 +0100 From: Will Deacon <will@...nel.org> To: Bart Van Assche <bvanassche@....org> Cc: syzbot <syzbot+bd3bba6ff3fcea7a6ec6@...kaller.appspotmail.com>, akpm@...ux-foundation.org, ast@...nel.org, bpf@...r.kernel.org, daniel@...earbox.net, davem@...emloft.net, dvyukov@...gle.com, hawk@...nel.org, hdanton@...a.com, jakub.kicinski@...ronome.com, johannes.berg@...el.com, johannes@...solutions.net, john.fastabend@...il.com, kafai@...com, linux-kernel@...r.kernel.org, longman@...hat.com, mingo@...nel.org, netdev@...r.kernel.org, paulmck@...ux.vnet.ibm.com, peterz@...radead.org, songliubraving@...com, syzkaller-bugs@...glegroups.com, tglx@...utronix.de, tj@...nel.org, torvalds@...ux-foundation.org, will.deacon@....com, xdp-newbies@...r.kernel.org, yhs@...com Subject: Re: WARNING in is_bpf_text_address On Thu, Aug 15, 2019 at 06:39:56PM -0700, Bart Van Assche wrote: > On 8/15/19 12:51 AM, Will Deacon wrote: > > On Sat, Aug 10, 2019 at 05:24:06PM -0700, syzbot wrote: > > > The bug was bisected to: > > > > > > commit a0b0fd53e1e67639b303b15939b9c653dbe7a8c4 > > > Author: Bart Van Assche <bvanassche@....org> > > > Date: Thu Feb 14 23:00:46 2019 +0000 > > > > > > locking/lockdep: Free lock classes that are no longer in use > > > > > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=152f6a9da00000 > > > final crash: https://syzkaller.appspot.com/x/report.txt?x=172f6a9da00000 > > > console output: https://syzkaller.appspot.com/x/log.txt?x=132f6a9da00000 > > > > I know you don't think much to these reports, but please could you have a > > look (even if it's just to declare it a false positive)? > > Had you already noticed the following message? > > https://lore.kernel.org/bpf/d76d7a63-7854-e92d-30cb-52546d333ffe@iogearbox.net/ > > From that message: "Hey Bart, don't think it's related in any way to your > commit. I'll allocate some time on working on this issue today, thanks!" Apologies, but I hadn't received that when I sent my initial email. Anyway, just wanted to make sure somebody was looking into it! Will
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