From: Sasha Levin <Alexander.Levin@microsoft.com>
To: Daniel Wang <wonderfly@google.com>
Cc: "rostedt@goodmis.org" <rostedt@goodmis.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>,
"pmladek@suse.com" <pmladek@suse.com>,
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"dave.hansen@intel.com" <dave.hansen@intel.com>,
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"jack@suse.cz" <jack@suse.cz>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"mathieu.desnoyers@efficios.com" <mathieu.desnoyers@efficios.com>,
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"mhocko@kernel.org" <mhocko@kernel.org>,
"pavel@ucw.cz" <pavel@ucw.cz>,
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"tj@kernel.org" <tj@kernel.org>,
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Peter Feiner <pfeiner@google.com>
Subject: Re: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes"
Date: Mon, 1 Oct 2018 20:40:24 +0000 [thread overview]
Message-ID: <20181001204022.GE69414@sasha-vm> (raw)
In-Reply-To: <CAJmjG29Jwn_1E5zexcm8eXTG=cTWyEr1gjSfSAS2fueB_V0tfg@mail.gmail.com>
On Mon, Oct 01, 2018 at 01:37:30PM -0700, Daniel Wang wrote:
>On Mon, Oct 1, 2018 at 12:23 PM Steven Rostedt <rostedt@goodmis.org> wrote:
>>
>> > Serial console logs leading up to the deadlock. As can be seen the stack trace
>> > was incomplete because the printing path hit a timeout.
>>
>> I'm fine with having this backported.
>
>Thanks. I can send the cherrypicks your way. Do you recommend that I
>include the three follow-up fixes though?
>
>c14376de3a1b printk: Wake klogd when passing console_lock owner
>fd5f7cde1b85 printk: Never set console_may_schedule in console_trylock()
>c162d5b4338d printk: Hide console waiter logic into helpers
>dbdda842fe96 printk: Add console owner and waiter logic to load
>balance console writes
Maybe it'll also make sense to make the reproducer into a test that can
go under tools/testing/ and we can backport that as well? It'll be
helpful to have a way to make sure things are sane.
--
Thanks,
Sasha
next prev parent reply other threads:[~2018-10-01 20:40 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-27 19:46 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes" Daniel Wang
2018-10-01 19:23 ` Steven Rostedt
2018-10-01 20:13 ` Pavel Machek
2018-10-01 20:21 ` Vlastimil Babka
2018-10-01 20:38 ` Daniel Wang
2018-10-01 20:29 ` Steven Rostedt
2018-10-01 20:37 ` Daniel Wang
2018-10-01 20:40 ` Sasha Levin [this message]
2018-10-02 8:42 ` Petr Mladek
2018-10-02 17:21 ` Daniel Wang
2018-10-03 0:15 ` Daniel Wang
2018-10-03 1:23 ` Steven Rostedt
2018-10-03 9:14 ` Petr Mladek
2018-10-03 17:16 ` Daniel Wang
2018-10-03 17:37 ` Steven Rostedt
2018-10-03 18:37 ` Daniel Wang
2018-10-03 23:37 ` Daniel Wang
2018-10-04 7:44 ` Sergey Senozhatsky
2018-10-04 8:05 ` Sergey Senozhatsky
2018-10-04 8:36 ` Petr Mladek
2018-10-04 8:55 ` Sergey Senozhatsky
2018-10-21 18:09 ` Daniel Wang
2018-10-22 9:32 ` Petr Mladek
2018-10-22 10:09 ` Sergey Senozhatsky
2018-11-01 16:05 ` Daniel Wang
2018-11-09 6:47 ` Sergey Senozhatsky
2018-12-12 1:16 ` Daniel Wang
2018-12-12 5:21 ` Sergey Senozhatsky
2018-12-12 6:08 ` Daniel Wang
2018-12-12 6:28 ` Sergey Senozhatsky
2018-12-12 6:48 ` Sasha Levin
2018-12-12 8:10 ` Sergey Senozhatsky
2018-12-12 13:36 ` Petr Mladek
2018-12-12 13:59 ` Sergey Senozhatsky
2018-12-12 17:43 ` Sasha Levin
2018-12-12 20:11 ` Daniel Wang
2018-12-12 21:43 ` Sasha Levin
2018-12-12 21:49 ` Daniel Wang
2018-12-12 21:52 ` Sasha Levin
2018-12-12 21:56 ` Daniel Wang
2018-12-13 0:40 ` Daniel Wang
2018-12-13 2:27 ` Sergey Senozhatsky
2018-12-13 2:39 ` Daniel Wang
2018-12-13 9:59 ` Petr Mladek
2018-12-13 14:29 ` Sasha Levin
2018-12-13 2:07 ` Sergey Senozhatsky
2018-12-28 0:16 ` Sergey Senozhatsky
2018-12-28 8:27 ` Greg KH
2018-12-28 22:03 ` Daniel Wang
2018-12-28 22:03 ` Daniel Wang
2018-12-30 3:03 ` Sergey Senozhatsky
2018-10-04 7:49 ` Petr Mladek
2018-10-02 8:16 ` Sergey Senozhatsky
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