On Fri, Oct 30, 2020 at 10:38:06AM +0100, Peter Zijlstra wrote:
> > if (!chain_head && ret != 2) {
> > if (!check_prevs_add(curr, hlock))
>
> I'm not entirely sure that doesn't still trigger the problem. Consider
> @chain_head := true.
Urgh, clearly my brain
On Fri, Oct 30, 2020 at 11:51:18AM +0800, Boqun Feng wrote:
> On Wed, Oct 28, 2020 at 08:59:10PM +0100, Peter Zijlstra wrote:
> Sorry for the late response.
No worries, glad you could have a look.
> > So that's commit f611e8cf98ec ("lockdep: Take read/write status in
> > consideration when
Hi Peter,
On Wed, Oct 28, 2020 at 08:59:10PM +0100, Peter Zijlstra wrote:
> On Wed, Oct 28, 2020 at 08:42:09PM +0100, Peter Zijlstra wrote:
> > On Wed, Oct 28, 2020 at 05:40:48PM +, Chris Wilson wrote:
> > > Quoting Chris Wilson (2020-10-27 16:34:53)
> > > > Quoting Peter Zijlstra (2020-10-27
Quoting Chris Wilson (2020-10-28 17:40:48)
> Quoting Chris Wilson (2020-10-27 16:34:53)
> > Quoting Peter Zijlstra (2020-10-27 15:45:33)
> > > On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
> > >
> > > > <4> [304.908891] hm#2, depth: 6 [6], 3425cfea6ff31f7f !=
> > > >
Quoting Chris Wilson (2020-10-27 16:34:53)
> Quoting Peter Zijlstra (2020-10-27 15:45:33)
> > On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
> >
> > > <4> [304.908891] hm#2, depth: 6 [6], 3425cfea6ff31f7f != 547d92e9ec2ab9af
> > > <4> [304.908897] WARNING: CPU: 0 PID: 5658 at
> >
On Wed, Oct 28, 2020 at 08:42:09PM +0100, Peter Zijlstra wrote:
> On Wed, Oct 28, 2020 at 05:40:48PM +, Chris Wilson wrote:
> > Quoting Chris Wilson (2020-10-27 16:34:53)
> > > Quoting Peter Zijlstra (2020-10-27 15:45:33)
> > > > On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
>
On Wed, Oct 28, 2020 at 05:40:48PM +, Chris Wilson wrote:
> Quoting Chris Wilson (2020-10-27 16:34:53)
> > Quoting Peter Zijlstra (2020-10-27 15:45:33)
> > > On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
> > >
> > > > <4> [304.908891] hm#2, depth: 6 [6], 3425cfea6ff31f7f !=
>
Quoting Peter Zijlstra (2020-10-27 12:48:34)
> On Tue, Oct 27, 2020 at 01:30:56PM +0100, Peter Zijlstra wrote:
> > This seems to make it happy. Not quite sure that's the best solution.
> >
> > diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
> > index 3e99dfef8408..81295bc760fe
Quoting Peter Zijlstra (2020-10-27 15:45:33)
> On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
>
> > <4> [304.908891] hm#2, depth: 6 [6], 3425cfea6ff31f7f != 547d92e9ec2ab9af
> > <4> [304.908897] WARNING: CPU: 0 PID: 5658 at kernel/locking/lockdep.c:3679
> >
On Tue, Oct 27, 2020 at 01:29:10PM +, Chris Wilson wrote:
> <4> [304.908891] hm#2, depth: 6 [6], 3425cfea6ff31f7f != 547d92e9ec2ab9af
> <4> [304.908897] WARNING: CPU: 0 PID: 5658 at kernel/locking/lockdep.c:3679
> check_chain_key+0x1a4/0x1f0
Urgh, I don't think I've _ever_ seen that warning
Quoting Peter Zijlstra (2020-10-27 12:30:56)
> On Tue, Oct 27, 2020 at 12:59:55PM +0100, Peter Zijlstra wrote:
> > On Tue, Oct 27, 2020 at 11:29:35AM +, Chris Wilson wrote:
> > > Quoting tip-bot2 for Peter Zijlstra (2020-10-07 17:20:13)
> > > > The following commit has been merged into the
On Tue, Oct 27, 2020 at 01:30:56PM +0100, Peter Zijlstra wrote:
> This seems to make it happy. Not quite sure that's the best solution.
>
> diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
> index 3e99dfef8408..81295bc760fe 100644
> --- a/kernel/locking/lockdep.c
> +++
On Tue, Oct 27, 2020 at 12:59:55PM +0100, Peter Zijlstra wrote:
> On Tue, Oct 27, 2020 at 11:29:35AM +, Chris Wilson wrote:
> > Quoting tip-bot2 for Peter Zijlstra (2020-10-07 17:20:13)
> > > The following commit has been merged into the locking/core branch of tip:
> > >
> > > Commit-ID:
On Tue, Oct 27, 2020 at 11:29:35AM +, Chris Wilson wrote:
> Quoting tip-bot2 for Peter Zijlstra (2020-10-07 17:20:13)
> > The following commit has been merged into the locking/core branch of tip:
> >
> > Commit-ID: 24d5a3bffef117ed90685f285c6c9d2faa3a02b4
> > Gitweb:
> >
Quoting tip-bot2 for Peter Zijlstra (2020-10-07 17:20:13)
> The following commit has been merged into the locking/core branch of tip:
>
> Commit-ID: 24d5a3bffef117ed90685f285c6c9d2faa3a02b4
> Gitweb:
> https://git.kernel.org/tip/24d5a3bffef117ed90685f285c6c9d2faa3a02b4
> Author:
The following commit has been merged into the locking/core branch of tip:
Commit-ID: 2bb8945bcc1a768f2bc402a16c9610bba8d5187d
Gitweb:
https://git.kernel.org/tip/2bb8945bcc1a768f2bc402a16c9610bba8d5187d
Author:Peter Zijlstra
AuthorDate:Wed, 30 Sep 2020 11:49:37 +02:00
The following commit has been merged into the locking/core branch of tip:
Commit-ID: 24d5a3bffef117ed90685f285c6c9d2faa3a02b4
Gitweb:
https://git.kernel.org/tip/24d5a3bffef117ed90685f285c6c9d2faa3a02b4
Author:Peter Zijlstra
AuthorDate:Wed, 30 Sep 2020 11:49:37 +02:00
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