On Fri, Jan 29, 2021 at 6:36 PM syzbot
wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 8d1ddb5e79374fb277985a6b3faa2ed8631c5b4c
> Author: Boqun Feng
> Date: Thu Nov 5 06:23:51 2020 +
>
> fcntl: Fix potential deadlock in send_sig{io, urg}()
>
> bisection log:
syzbot suspects this issue was fixed by commit:
commit 8d1ddb5e79374fb277985a6b3faa2ed8631c5b4c
Author: Boqun Feng
Date: Thu Nov 5 06:23:51 2020 +
fcntl: Fix potential deadlock in send_sig{io, urg}()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17455db4d0
start
syzbot has bisected this issue to:
commit e918188611f073063415f40fae568fa4d86d9044
Author: Boqun Feng
Date: Fri Aug 7 07:42:20 2020 +
locking: More accurate annotations for read_lock()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15fbef3250
start commit:
syzbot has found a reproducer for the following issue on:
HEAD commit:4ef8451b Merge tag 'perf-tools-for-v5.10-2020-11-03' of gi..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1321012a50
kernel config:
Hello,
syzbot found the following issue on:
HEAD commit:dff9f829 Add linux-next specific files for 20200908
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17521b3590
kernel config: https://syzkaller.appspot.com/x/.config?x=37b3426c77bda44c
dashboard
On 6/15/20 8:13 PM, Boqun Feng wrote:
Hi Matthew,
On Mon, Jun 15, 2020 at 01:40:46PM -0700, Matthew Wilcox wrote:
On Mon, Jun 15, 2020 at 01:13:51PM -0400, Waiman Long wrote:
On 6/15/20 12:49 PM, Matthew Wilcox wrote:
On Fri, Jun 12, 2020 at 03:01:01PM +0800, Boqun Feng wrote:
On the archs
Hi Matthew,
On Mon, Jun 15, 2020 at 01:40:46PM -0700, Matthew Wilcox wrote:
> On Mon, Jun 15, 2020 at 01:13:51PM -0400, Waiman Long wrote:
> > On 6/15/20 12:49 PM, Matthew Wilcox wrote:
> > > On Fri, Jun 12, 2020 at 03:01:01PM +0800, Boqun Feng wrote:
> > > > On the archs using QUEUED_RWLOCKS,
On Mon, Jun 15, 2020 at 01:13:51PM -0400, Waiman Long wrote:
> On 6/15/20 12:49 PM, Matthew Wilcox wrote:
> > On Fri, Jun 12, 2020 at 03:01:01PM +0800, Boqun Feng wrote:
> > > On the archs using QUEUED_RWLOCKS, read_lock() is not always a recursive
> > > read lock, actually it's only recursive if
On 6/15/20 12:49 PM, Matthew Wilcox wrote:
On Fri, Jun 12, 2020 at 03:01:01PM +0800, Boqun Feng wrote:
On the archs using QUEUED_RWLOCKS, read_lock() is not always a recursive
read lock, actually it's only recursive if in_interrupt() is true. So
change the annotation accordingly to catch more
On Fri, Jun 12, 2020 at 03:01:01PM +0800, Boqun Feng wrote:
> On the archs using QUEUED_RWLOCKS, read_lock() is not always a recursive
> read lock, actually it's only recursive if in_interrupt() is true. So
> change the annotation accordingly to catch more deadlocks.
[...]
> +#ifdef
On 6/12/20 3:01 AM, Boqun Feng wrote:
On Fri, Jun 12, 2020 at 07:55:26AM +0800, Boqun Feng wrote:
Hi Peter and Waiman,
On Thu, Jun 11, 2020 at 12:09:59PM -0400, Waiman Long wrote:
On 6/11/20 10:22 AM, Peter Zijlstra wrote:
On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
There
On Fri, Jun 12, 2020 at 07:55:26AM +0800, Boqun Feng wrote:
> Hi Peter and Waiman,
>
> On Thu, Jun 11, 2020 at 12:09:59PM -0400, Waiman Long wrote:
> > On 6/11/20 10:22 AM, Peter Zijlstra wrote:
> > > On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
> > >
> > > > There was an old
On 6/11/20 7:55 PM, Boqun Feng wrote:
Hi Peter and Waiman,
On Thu, Jun 11, 2020 at 12:09:59PM -0400, Waiman Long wrote:
On 6/11/20 10:22 AM, Peter Zijlstra wrote:
On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
There was an old lockdep patch that I think may address the issue,
Hi Peter and Waiman,
On Thu, Jun 11, 2020 at 12:09:59PM -0400, Waiman Long wrote:
> On 6/11/20 10:22 AM, Peter Zijlstra wrote:
> > On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
> >
> > > There was an old lockdep patch that I think may address the issue, but was
> > > not merged at
Waiman Long writes:
> On 4/4/20 1:55 AM, syzbot wrote:
>> Hello,
>>
>> syzbot found the following crash on:
>>
>> HEAD commit:bef7b2a7 Merge tag 'devicetree-for-5.7' of git://git.kerne..
>> git tree: upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=15f39c5de0
On 6/11/20 10:22 AM, Peter Zijlstra wrote:
On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
There was an old lockdep patch that I think may address the issue, but was
not merged at the time. I will need to dig it out and see if it can be
adapted to work in the current kernel. It
On Thu, Jun 11, 2020 at 09:51:29AM -0400, Waiman Long wrote:
> There was an old lockdep patch that I think may address the issue, but was
> not merged at the time. I will need to dig it out and see if it can be
> adapted to work in the current kernel. It may take some time.
Boqun was working on
On 6/11/20 3:43 AM, Dmitry Vyukov wrote:
On Thu, Jun 11, 2020 at 4:33 AM Waiman Long wrote:
On 4/4/20 1:55 AM, syzbot wrote:
Hello,
syzbot found the following crash on:
HEAD commit:bef7b2a7 Merge tag 'devicetree-for-5.7' of git://git.kerne..
git tree: upstream
console output:
On Thu, Jun 11, 2020 at 4:33 AM Waiman Long wrote:
>
> On 4/4/20 1:55 AM, syzbot wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:bef7b2a7 Merge tag 'devicetree-for-5.7' of git://git.kerne..
> > git tree: upstream
> > console output:
On 4/4/20 1:55 AM, syzbot wrote:
Hello,
syzbot found the following crash on:
HEAD commit:bef7b2a7 Merge tag 'devicetree-for-5.7' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15f39c5de0
kernel config:
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