From: Thomas Gleixner <tglx@linutronix.de>
To: Sebastian Sewior <bigeasy@linutronix.de>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-s390@vger.kernel.org, Stefan Liebler <stli@linux.ibm.com>
Subject: Re: WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered
Date: Wed, 30 Jan 2019 14:29:21 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.21.1901301428390.5537@nanos.tec.linutronix.de> (raw)
In-Reply-To: <20190130132420.spwrq2d4oxeydk5s@linutronix.de>
[-- Attachment #1: Type: text/plain, Size: 1435 bytes --]
On Wed, 30 Jan 2019, Sebastian Sewior wrote:
> On 2019-01-30 13:59:55 [+0100], Heiko Carstens wrote:
> > Last lines of trace below (full log attached):
>
> <...>-56956 [005] .... 658.931364: handle_futex_death: uaddr: 3ff9e880c58 pi: 1
> …
> <...>-56956 [005] .... 658.931369: handle_futex_death: uaddr: 3ff9e8808c0 success
> <...>-56956 [005] .... 658.931370: sched_process_exit: comm=ld64.so.1 pid=56956 prio=120
>
> not including 3ff9e880140
>
> <...>-56956 [005] .... 658.931370: sched_process_exit: comm=ld64.so.1 pid=56956 prio=120
>
> <...>-56496 [001] .... 658.932404: sys_futex(uaddr: 3ff9e880140, op: 6, val: 1, utime: 0, uaddr2: 5, val3: 0)
> <...>-56496 [001] .... 658.932405: attach_to_pi_owner: Missing pid 56956
> <...>-56496 [001] .... 658.932406: handle_exit_race: uval2 vs uval 8000de7c vs 8000de7c (-1)
> <...>-56496 [001] .... 658.932501: sys_futex -> 0xfffffffffffffffd
> …
> <...>-56496 [001] .... 659.020750: handle_futex_death: uaddr: 3ff9e880140 pi: 1
> <...>-56496 [001] .... 659.020750: handle_futex_death: uaddr: 3ff9e880140 uval: 8000de7c
> <...>-56496 [001] .... 659.020750: handle_futex_death: uaddr: 3ff9e880140 success
>
> and here we have it.
Bah. I was looking at the wrong trace. /me goes to give a talk and stares
at that mess later.
next prev parent reply other threads:[~2019-01-30 13:29 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-27 8:11 WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered Heiko Carstens
2018-11-28 14:32 ` Thomas Gleixner
2018-11-29 11:23 ` Heiko Carstens
2019-01-21 12:21 ` Heiko Carstens
2019-01-21 13:12 ` Thomas Gleixner
2019-01-22 21:14 ` Thomas Gleixner
2019-01-23 9:24 ` Heiko Carstens
2019-01-23 12:33 ` Thomas Gleixner
2019-01-23 12:40 ` Heiko Carstens
2019-01-28 13:44 ` Peter Zijlstra
2019-01-28 13:58 ` Peter Zijlstra
2019-01-28 15:53 ` Thomas Gleixner
2019-01-29 8:49 ` Peter Zijlstra
2019-01-29 22:15 ` [PATCH] futex: Handle early deadlock return correctly Thomas Gleixner
2019-01-30 12:01 ` Thomas Gleixner
2019-02-08 12:05 ` [tip:locking/urgent] " tip-bot for Thomas Gleixner
2019-01-29 9:01 ` WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered Heiko Carstens
2019-01-29 9:33 ` Peter Zijlstra
2019-01-29 9:45 ` Thomas Gleixner
2019-01-29 10:24 ` Heiko Carstens
2019-01-29 10:35 ` Peter Zijlstra
2019-01-29 13:03 ` Thomas Gleixner
2019-01-29 13:23 ` Heiko Carstens
[not found] ` <20190129151058.GG26906@osiris>
2019-01-29 17:16 ` Sebastian Sewior
2019-01-29 21:45 ` Thomas Gleixner
[not found] ` <20190130094913.GC5299@osiris>
2019-01-30 12:15 ` Thomas Gleixner
[not found] ` <20190130125955.GD5299@osiris>
2019-01-30 13:24 ` Sebastian Sewior
2019-01-30 13:29 ` Thomas Gleixner [this message]
2019-01-30 14:33 ` Thomas Gleixner
2019-01-30 17:56 ` Thomas Gleixner
2019-01-30 21:07 ` Sebastian Sewior
2019-01-30 23:13 ` WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggerede Thomas Gleixner
2019-01-30 23:35 ` Paul E. McKenney
2019-01-30 23:55 ` Thomas Gleixner
2019-01-31 0:27 ` Thomas Gleixner
2019-01-31 1:45 ` Paul E. McKenney
2019-01-31 16:52 ` Heiko Carstens
2019-01-31 17:06 ` Sebastian Sewior
2019-01-31 20:42 ` Heiko Carstens
2019-02-01 16:12 ` Heiko Carstens
2019-02-01 21:59 ` Thomas Gleixner
[not found] ` <20190202091043.GA3381@osiris>
2019-02-02 10:14 ` Thomas Gleixner
2019-02-02 11:20 ` Heiko Carstens
2019-02-03 16:30 ` Thomas Gleixner
2019-02-04 11:40 ` Heiko Carstens
2019-01-31 1:44 ` Paul E. McKenney
2019-01-30 13:25 ` WARN_ON_ONCE(!new_owner) within wake_futex_pi() triggered Thomas Gleixner
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