From: Dmitry Vyukov <dvyukov@google.com>
To: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: syzbot <syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com>,
bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com,
hannes@cmpxchg.org, juri.lelli@redhat.com,
linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com,
peterz@infradead.org, rostedt@goodmis.org, surenb@google.com,
syzkaller-bugs@googlegroups.com, vincent.guittot@linaro.org,
vschneid@redhat.com,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in psi_task_switch
Date: Wed, 3 May 2023 12:38:19 +0200 [thread overview]
Message-ID: <CACT4Y+Zxd87dozaOgKWQ=ROpnN8-4k+ErFByJEu_oxnJttmxMg@mail.gmail.com> (raw)
In-Reply-To: <ZFI4ue1uzd0Il9yM@shell.armlinux.org.uk>
On Wed, 3 May 2023 at 12:34, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Tue, May 02, 2023 at 08:37:15AM +0200, Dmitry Vyukov wrote:
> > On Mon, 1 May 2023 at 18:43, syzbot
> > <syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com> wrote:
> > >
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit: 89d77f71f493 Merge tag 'riscv-for-linus-6.4-mw1' of git://..
> > > git tree: upstream
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=1113550c280000
> > > kernel config: https://syzkaller.appspot.com/x/.config?x=4cc65ccad523b604
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=0827f43974813b74e6db
> > > compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > > userspace arch: arm
> > >
> > > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > > Reported-by: syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com
> >
> > +arm mailing list
> >
> > Kernel started falling apart on arm during boot in various strange ways.
>
> Are these all the same hardware platform? If so, please check the
> hardware with a known working kernel. These look like spurious failts
> caused possibly the hardware platform failing.
It happens in the same qemu that used to work before. So "hardware" is
presumably working.
WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Vyukov <dvyukov@google.com>
To: "Russell King (Oracle)" <linux@armlinux.org.uk>
Cc: syzbot <syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com>,
bristot@redhat.com, bsegall@google.com,
dietmar.eggemann@arm.com, hannes@cmpxchg.org,
juri.lelli@redhat.com, linux-kernel@vger.kernel.org,
mgorman@suse.de, mingo@redhat.com, peterz@infradead.org,
rostedt@goodmis.org, surenb@google.com,
syzkaller-bugs@googlegroups.com, vincent.guittot@linaro.org,
vschneid@redhat.com,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in psi_task_switch
Date: Wed, 3 May 2023 12:38:19 +0200 [thread overview]
Message-ID: <CACT4Y+Zxd87dozaOgKWQ=ROpnN8-4k+ErFByJEu_oxnJttmxMg@mail.gmail.com> (raw)
In-Reply-To: <ZFI4ue1uzd0Il9yM@shell.armlinux.org.uk>
On Wed, 3 May 2023 at 12:34, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Tue, May 02, 2023 at 08:37:15AM +0200, Dmitry Vyukov wrote:
> > On Mon, 1 May 2023 at 18:43, syzbot
> > <syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com> wrote:
> > >
> > > Hello,
> > >
> > > syzbot found the following issue on:
> > >
> > > HEAD commit: 89d77f71f493 Merge tag 'riscv-for-linus-6.4-mw1' of git://..
> > > git tree: upstream
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=1113550c280000
> > > kernel config: https://syzkaller.appspot.com/x/.config?x=4cc65ccad523b604
> > > dashboard link: https://syzkaller.appspot.com/bug?extid=0827f43974813b74e6db
> > > compiler: arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > > userspace arch: arm
> > >
> > > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > > Reported-by: syzbot+0827f43974813b74e6db@syzkaller.appspotmail.com
> >
> > +arm mailing list
> >
> > Kernel started falling apart on arm during boot in various strange ways.
>
> Are these all the same hardware platform? If so, please check the
> hardware with a known working kernel. These look like spurious failts
> caused possibly the hardware platform failing.
It happens in the same qemu that used to work before. So "hardware" is
presumably working.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-05-03 10:38 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-01 16:43 [syzbot] upstream boot error: BUG: unable to handle kernel NULL pointer dereference in psi_task_switch syzbot
2023-05-02 6:37 ` Dmitry Vyukov
2023-05-02 6:37 ` Dmitry Vyukov
2023-05-03 10:34 ` Russell King (Oracle)
2023-05-03 10:34 ` Russell King (Oracle)
2023-05-03 10:38 ` Dmitry Vyukov [this message]
2023-05-03 10:38 ` Dmitry Vyukov
2023-05-03 10:54 ` Russell King (Oracle)
2023-05-03 10:54 ` Russell King (Oracle)
2023-05-03 13:32 ` Peter Zijlstra
2023-05-03 16:29 ` Johannes Weiner
2023-05-04 9:56 ` Chengming Zhou
2023-05-08 6:23 ` Dmitry Vyukov
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