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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.

  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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