On Tue, Jun 16, 2020 at 08:53:59AM +0200, Daniel Wagner wrote:
> I've tested this patch against 5.8-rc1. Without the fix, after around 2 hours
> the warning was triggered by the reproducer. With the patch, it survived
> roughly 12 hours without the warning.
>
> Tested-by: Daniel Wagner
Thanks,
On Tue, Jul 23, 2019 at 09:45:16PM -0700, Eric Biggers wrote:
> On Thu, Feb 07, 2019 at 10:35:04AM +0100, 'Dmitry Vyukov' via syzkaller-bugs
> wrote:
> > On Mon, Jan 7, 2019 at 5:19 PM Daniel Bristot de Oliveira
> > wrote:
> > >
> > > On 11/19/18 4:32 PM, Juri Lelli wrote:
> > > > From
On Thu, Feb 07, 2019 at 10:35:04AM +0100, 'Dmitry Vyukov' via syzkaller-bugs
wrote:
> On Mon, Jan 7, 2019 at 5:19 PM Daniel Bristot de Oliveira
> wrote:
> >
> > On 11/19/18 4:32 PM, Juri Lelli wrote:
> > > From 9326fd2b20269cffef7290bdc5b8173460d3c870 Mon Sep 17 00:00:00 2001
> > > From: Juri
syzbot has bisected this bug to:
commit 7c80cfc99b7bfdc92cee26f8008859f326f4a37f
Author: Peter Zijlstra
Date: Sat May 6 14:03:17 2017 +
sched/fair: Clean up calc_cfs_shares()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=169d614d20
start commit: 7c80cfc9
On Mon, Jan 7, 2019 at 5:19 PM Daniel Bristot de Oliveira
wrote:
>
> On 11/19/18 4:32 PM, Juri Lelli wrote:
> > From 9326fd2b20269cffef7290bdc5b8173460d3c870 Mon Sep 17 00:00:00 2001
> > From: Juri Lelli
> > Date: Mon, 19 Nov 2018 16:04:42 +0100
> > Subject: [PATCH] sched/core: Fix PI boosting
On 11/19/18 4:32 PM, Juri Lelli wrote:
> From 9326fd2b20269cffef7290bdc5b8173460d3c870 Mon Sep 17 00:00:00 2001
> From: Juri Lelli
> Date: Mon, 19 Nov 2018 16:04:42 +0100
> Subject: [PATCH] sched/core: Fix PI boosting between RT and DEADLINE
>
> syzbot reported the following warning:
>
>
Hi,
On 02/01/19 10:15, luca abeni wrote:
> Hi all,
> (and, happy new year to everyone!)
>
> this looks similar to a bug we have seen some time ago (a task
> switching from SCHED_OTHER to SCHED_DEADLINE while inheriting a
> deadline from a SCHED_DEADLINE task triggers the warning)...
>
> Juri, I
Hi all,
(and, happy new year to everyone!)
this looks similar to a bug we have seen some time ago (a task
switching from SCHED_OTHER to SCHED_DEADLINE while inheriting a
deadline from a SCHED_DEADLINE task triggers the warning)...
Juri, I think you found a fix for such a bug; has it been
syzbot has found a reproducer for the following crash on:
HEAD commit:195303136f19 Merge tag 'kconfig-v4.21-2' of git://git.kern..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=118af84b40
kernel config:
On 19/11/18 14:43, Juri Lelli wrote:
> On 19/11/18 13:52, Peter Zijlstra wrote:
> > On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
> >
> > > > On Sun, 18 Nov 2018, syzbot wrote:
> >
> > > > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > > >
On 19/11/18 14:43, Juri Lelli wrote:
> On 19/11/18 13:52, Peter Zijlstra wrote:
> > On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
> >
> > > > On Sun, 18 Nov 2018, syzbot wrote:
> >
> > > > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > > >
On 19/11/18 13:52, Peter Zijlstra wrote:
> On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
>
> > > On Sun, 18 Nov 2018, syzbot wrote:
>
> > > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > > enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504
> >
> > Here,
On 19/11/18 13:52, Peter Zijlstra wrote:
> On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
>
> > > On Sun, 18 Nov 2018, syzbot wrote:
>
> > > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > > enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504
> >
> > Here,
On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
> > On Sun, 18 Nov 2018, syzbot wrote:
> > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504
>
> Here, it looks like a task is invoking sched_setattr() to become
On Mon, Nov 19, 2018 at 01:07:18PM +0100, luca abeni wrote:
> > On Sun, 18 Nov 2018, syzbot wrote:
> > > WARNING: CPU: 1 PID: 6351 at kernel/sched/deadline.c:628
> > > enqueue_task_dl+0x22da/0x38a0 kernel/sched/deadline.c:1504
>
> Here, it looks like a task is invoking sched_setattr() to become
Hi all,
On Mon, 19 Nov 2018 09:23:03 +0100 (CET)
Thomas Gleixner wrote:
> Adding scheduler folks
>
> On Sun, 18 Nov 2018, syzbot wrote:
>
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of
> > git://g.. git
Hi all,
On Mon, 19 Nov 2018 09:23:03 +0100 (CET)
Thomas Gleixner wrote:
> Adding scheduler folks
>
> On Sun, 18 Nov 2018, syzbot wrote:
>
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of
> > git://g.. git
On Mon, Nov 19, 2018 at 09:23:03AM +0100, Thomas Gleixner wrote:
> Adding scheduler folks
Nothing new there, printk is crap.
> > ==
> > WARNING: possible circular locking dependency detected
> > 4.20.0-rc2+ #338 Not tainted
> >
On Mon, Nov 19, 2018 at 09:23:03AM +0100, Thomas Gleixner wrote:
> Adding scheduler folks
Nothing new there, printk is crap.
> > ==
> > WARNING: possible circular locking dependency detected
> > 4.20.0-rc2+ #338 Not tainted
> >
Adding scheduler folks
On Sun, 18 Nov 2018, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of git://g..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=14ddbb0b40
>
Adding scheduler folks
On Sun, 18 Nov 2018, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of git://g..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=14ddbb0b40
>
Hello,
syzbot found the following crash on:
HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of git://g..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14ddbb0b40
kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605
Hello,
syzbot found the following crash on:
HEAD commit:1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of git://g..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=14ddbb0b40
kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605
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