From: Anders Roxell <anders.roxell@linaro.org>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Alexander Potapenko <glider@google.com>,
Marco Elver <elver@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Jann Horn <jannh@google.com>,
Linux Next Mailing List <linux-next@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: linux-next: Tree for Nov 5
Date: Tue, 10 Nov 2020 10:25:02 +0100 [thread overview]
Message-ID: <CADYN=9K4MY+zfB-0acmOQMyiqFnnt+CqiwZJK=-7ZvvztxdetA@mail.gmail.com> (raw)
In-Reply-To: <CACT4Y+ZA5tv4siG7JsXqmrk2J5WOQOtW51g0DPNMPSGHKkixDw@mail.gmail.com>
On Tue, 10 Nov 2020 at 10:17, Dmitry Vyukov <dvyukov@google.com> wrote:
>
> On Tue, Nov 10, 2020 at 8:50 AM Anders Roxell <anders.roxell@linaro.org> wrote:
> >
> > On Thu, 5 Nov 2020 at 07:06, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> > >
> > > Hi all,
> > >
> > > Changes since 20201104:
> >
> > When building an arm64 allmodconfig and booting up that in qemu I see
> >
> > [10011.092394][ T28] task:kworker/0:2 state:D stack:26896 pid:
> > 1840 ppid: 2 flags:0x00000428
> > [10022.368093][ T28] Workqueue: events toggle_allocation_gate
> > [10024.827549][ T28] Call trace:
> > [10027.152494][ T28] __switch_to+0x1cc/0x1e0
> > [10031.378073][ T28] __schedule+0x730/0x800
> > [10032.164468][ T28] schedule+0xd8/0x160
> > [10033.886807][ T28] toggle_allocation_gate+0x16c/0x220
> > [10038.477987][ T28] process_one_work+0x5c0/0x980
> > [10039.900075][ T28] worker_thread+0x428/0x720
> > [10042.782911][ T28] kthread+0x23c/0x260
> > [10043.171725][ T28] ret_from_fork+0x10/0x18
> > [10046.227741][ T28] INFO: lockdep is turned off.
> > [10047.732220][ T28] Kernel panic - not syncing: hung_task: blocked tasks
> > [10047.741785][ T28] CPU: 0 PID: 28 Comm: khungtaskd Tainted: G
> > W 5.10.0-rc2-next-20201105-00006-g7af110e4d8ed #1
> > [10047.755348][ T28] Hardware name: linux,dummy-virt (DT)
> > [10047.763476][ T28] Call trace:
> > [10047.769802][ T28] dump_backtrace+0x0/0x420
> > [10047.777104][ T28] show_stack+0x38/0xa0
> > [10047.784177][ T28] dump_stack+0x1d4/0x278
> > [10047.791362][ T28] panic+0x304/0x5d8
> > [10047.798202][ T28] check_hung_uninterruptible_tasks+0x5e4/0x640
> > [10047.807056][ T28] watchdog+0x138/0x160
> > [10047.814140][ T28] kthread+0x23c/0x260
> > [10047.821130][ T28] ret_from_fork+0x10/0x18
> > [10047.829181][ T28] Kernel Offset: disabled
> > [10047.836274][ T28] CPU features: 0x0240002,20002004
> > [10047.844070][ T28] Memory Limit: none
> > [10047.853599][ T28] ---[ end Kernel panic - not syncing: hung_task:
> > blocked tasks ]---
> >
> > if I build with KFENCE=n it boots up eventually, here's my .config file [2].
> >
> > Any idea what may happen?
> >
> > it happens on next-20201109 also, but it takes longer until we get the
> > "Call trace:".
> >
> > Cheers,
> > Anders
> > [1] http://ix.io/2Ddv
> > [2] https://people.linaro.org/~anders.roxell/allmodconfig-next-20201105.config
>
> Hi Anders,
Hi Dmitry,
>
> Does it happen during boot or afterwards?
During boot, since it runs a lot of boot selftests.
> 10047 are seconds after boot, right?
No
> So this is like 3 hours after boot, no?
This is a boot log where I actually get to the boot prompt.
https://people.linaro.org/~anders.roxell/output-next-20201109-nokfence.log
> Also, is there anything useful before that part of the log?
oh I missed to say that this is the full boot log with the kernel
panic http://ix.io/2Ddv
Cheers,
Anders
next prev parent reply other threads:[~2020-11-10 9:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-05 6:06 linux-next: Tree for Nov 5 Stephen Rothwell
2020-11-05 16:34 ` linux-next: Tree for Nov 5 [drivers/auxdisplay/hd44780_common.ko] Randy Dunlap
2020-11-05 20:29 ` linux-next: Tree for Nov 5 [drivers/net/ethernet/stmicro/stmmac/dwmac-thead.ko] Randy Dunlap
2020-11-10 7:50 ` linux-next: Tree for Nov 5 Anders Roxell
2020-11-10 9:17 ` Dmitry Vyukov
2020-11-10 9:25 ` Anders Roxell [this message]
2020-11-10 9:36 ` Dmitry Vyukov
2020-11-10 13:54 ` Marco Elver
2020-11-10 15:42 ` Anders Roxell
-- strict thread matches above, loose matches on Subject: below --
2021-11-05 3:39 Stephen Rothwell
2019-11-05 10:43 Stephen Rothwell
2018-11-05 5:51 Stephen Rothwell
2015-11-05 5:51 Stephen Rothwell
2014-11-05 6:53 Stephen Rothwell
2014-11-05 10:47 ` Guenter Roeck
2013-11-05 7:16 Stephen Rothwell
2012-11-05 5:49 Stephen Rothwell
2011-11-07 3:13 Stephen Rothwell
2011-11-07 5:52 ` Stephen Rothwell
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