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From: Qian Cai <qcai@redhat.com>
To: Valentin Schneider <valentin.schneider@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	tglx@linutronix.de, mingo@kernel.org,
	linux-kernel@vger.kernel.org, bigeasy@linutronix.de,
	qais.yousef@arm.com, swood@redhat.com, juri.lelli@redhat.com,
	vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de,
	bristot@redhat.com, vincent.donnefort@arm.com, tj@kernel.org,
	ouwen210@hotmail.com
Subject: Re: [PATCH v4 11/19] sched/core: Make migrate disable and CPU hotplug cooperative
Date: Thu, 03 Dec 2020 19:23:33 -0500	[thread overview]
Message-ID: <e17c3fb24cdad2fec1dc10da5ef6f5e37cfe7c03.camel@redhat.com> (raw)
In-Reply-To: <jhjpn4bwznx.mognet@arm.com>

FYI, it did crash on arm64 (Thunder X2) as well, so I'll re-run to gather more
information too.

.config: https://cailca.coding.net/public/linux/mm/git/files/master/arm64.config

[20370.682747][T77637] psci: CPU123 killed (polled 0 ms) 
[20370.823651][  T635] IRQ 43: no longer affine to CPU124 
[20370.828862][  T635] IRQ 49: no longer affine to CPU124 
[20370.834072][  T635] IRQ 60: no longer affine to CPU124 
[20370.839517][  T635] IRQ 94: no longer affine to CPU124 
[20370.845778][T77637] CPU124: shutdown 
[20370.861891][T77637] psci: CPU124 killed (polled 10 ms) 
[20371.425434][T77637] CPU125: shutdown 
[20371.441464][T77637] psci: CPU125 killed (polled 10 ms) 
[20371.984072][T77637] CPU126: shutdown 
[20372.000057][T77637] psci: CPU126 killed (polled 10 ms) 
[20372.223858][  T650] ------------[ cut here ]------------ 
[20372.229599][  T650] kernel BUG at kernel/sched/core.c:7594! 
[20372.235165][  T650] Internal error: Oops - BUG: 0 [#1] SMP 
[20372.240643][  T650] Modules linked in: vfio_pci vfio_virqfd vfio_iommu_type1
vfio loop processor ip_tables x_tables sd_mod mlx5_core firmware_class ahci
libahci libata dm_mirror dm_region_hash dm_log dm_mod efivarfs 
[20372.259814][  T650] CPU: 127 PID: 650 Comm: migration/127 Tainted: G             L    5.10.0-rc6-next-20201203+ #5 
[20372.270152][  T650] Hardware name: HPE Apollo 70             /C01_APACHE_MB         , BIOS L50_5.13_1.16 07/29/2020 
[20372.280579][  T650] Stopper: multi_cpu_stop+0x0/0x390 <- 0x0 
[20372.286230][  T650] pstate: 20400089 (nzCv daIf +PAN -UAO -TCO BTYPE=--) 
[20372.292923][  T650] pc : sched_cpu_dying+0x198/0x1b8 
[20372.297879][  T650] lr : sched_cpu_dying+0x68/0x1b8 
[20372.302748][  T650] sp : ffff00001076fba0 
[20372.306747][  T650] x29: ffff00001076fba0 x28: 0000000000000000  
[20372.312751][  T650] x27: 0000000000000001 x26: ffff800011db3000  
[20372.318753][  T650] x25: ffff000e7bdd16a8 x24: 000000000000005a  
[20372.324754][  T650] x23: 000000000000007f x22: 0000000000000080  
[20372.330756][  T650] x21: 000000000000fab7 x20: ffff000e7be63818  
[20372.336757][  T650] x19: ffff000e7be63800 x18: 1fffe001cf7cb3ed  
[20372.342758][  T650] x17: 0000000000001308 x16: 0000000000000000  
[20372.348759][  T650] x15: 000000000001053f x14: 000000000001053f  
[20372.354761][  T650] x13: ffff6000020edf65 x12: 1fffe000020edf64  
[20372.360763][  T650] x11: 1fffe000020edf64 x10: ffff6000020edf64  
[20372.366764][  T650] x9 : dfff800000000000 x8 : ffff00001076fb23  
[20372.372766][  T650] x7 : 0000000000000001 x6 : 0000000000000001  
[20372.378767][  T650] x5 : 1fffe000020b9a0a x4 : dfff800000000000  
[20372.384769][  T650] x3 : dfff800000000000 x2 : 0000000000000003  
[20372.390770][  T650] x1 : ffff000e7be63840 x0 : 0000000000000002  
[20372.396771][  T650] Call trace: 
[20372.399905][  T650]  sched_cpu_dying+0x198/0x1b8 
[20372.404514][  T650]  cpuhp_invoke_callback+0x208/0x2bf0 
[20372.409730][  T650]  take_cpu_down+0x11c/0x1f0 
[20372.414165][  T650]  multi_cpu_stop+0x184/0x390 
[20372.418687][  T650]  cpu_stopper_thread+0x1f0/0x430 
[20372.423557][  T650]  smpboot_thread_fn+0x3a8/0x9c8 
[20372.428339][  T650]  kthread+0x3a0/0x448 
[20372.432253][  T650]  ret_from_fork+0x10/0x1c 
[20372.436517][  T650] Code: d65f03c0 911a82a2 140004fb 17ffffd9 (d4210000)  
[20372.443298][  T650] ---[ end trace c51d5b6889ec29a8 ]--- 
[20372.448602][  T650] Kernel panic - not syncing: Oops - BUG: Fatal exception 


  parent reply	other threads:[~2020-12-04  0:25 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-23 10:11 [PATCH v4 00/19] sched: Migrate disable support Peter Zijlstra
2020-10-23 10:11 ` [PATCH v4 01/19] stop_machine: Add function and caller debug info Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 02/19] sched: Fix balance_callback() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-11-11 20:30     ` Paul Bolle
2020-11-11 20:45       ` Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 03/19] sched/hotplug: Ensure only per-cpu kthreads run during hotplug Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 04/19] sched/core: Wait for tasks being pushed away on hotplug Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2020-10-23 10:12 ` [PATCH v4 05/19] workqueue: Manually break affinity " Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 06/19] sched/hotplug: Consolidate task migration on CPU unplug Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2020-10-23 10:12 ` [PATCH v4 07/19] sched: Fix hotplug vs CPU bandwidth control Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 08/19] sched: Massage set_cpus_allowed() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 09/19] sched: Add migrate_disable() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 10/19] sched: Fix migrate_disable() vs set_cpus_allowed_ptr() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-11-12 16:38   ` [PATCH v4 10/19] " Qian Cai
2020-11-12 17:26     ` Valentin Schneider
2020-11-12 18:01       ` Qian Cai
2020-11-12 19:31         ` Valentin Schneider
2020-11-12 19:41           ` Qian Cai
2020-11-12 20:37           ` Qian Cai
2020-11-12 21:26             ` Valentin Schneider
2020-11-13 10:27           ` Peter Zijlstra
2020-11-12 18:35       ` Qian Cai
2020-11-20 12:34     ` [tip: sched/core] sched/core: Add missing completion for affine_move_task() waiters tip-bot2 for Valentin Schneider
2020-10-23 10:12 ` [PATCH v4 11/19] sched/core: Make migrate disable and CPU hotplug cooperative Peter Zijlstra
2020-10-29 16:27   ` Valentin Schneider
2020-10-29 17:34     ` Peter Zijlstra
2020-10-29 17:55       ` Valentin Schneider
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Thomas Gleixner
2020-11-13 15:06   ` [PATCH v4 11/19] " Qian Cai
2020-11-17 19:28     ` Valentin Schneider
2020-11-18 14:44       ` Qian Cai
2020-11-23 18:13         ` Sebastian Andrzej Siewior
2020-12-02 21:59           ` Qian Cai
2020-12-03 12:31           ` Qian Cai
2020-12-04  0:23       ` Qian Cai [this message]
2020-12-04 21:19       ` Qian Cai
2020-12-05 18:37         ` Valentin Schneider
2020-12-06  1:17           ` Qian Cai
2020-12-07 19:27         ` Valentin Schneider
2020-12-08 13:46           ` Qian Cai
2020-12-09 19:16             ` Valentin Schneider
2020-10-23 10:12 ` [PATCH v4 12/19] sched,rt: Use cpumask_any*_distribute() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 13/19] sched,rt: Use the full cpumask for balancing Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 14/19] sched, lockdep: Annotate ->pi_lock recursion Peter Zijlstra
2020-10-29 16:27   ` Valentin Schneider
2020-10-29 17:38     ` Peter Zijlstra
2020-10-29 18:09       ` Valentin Schneider
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 15/19] sched: Fix migrate_disable() vs rt/dl balancing Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-12-26 13:54   ` [PATCH v4 15/19] " Qais Yousef
2021-03-05 14:56     ` Peter Zijlstra
2021-03-05 15:41       ` Valentin Schneider
2021-03-05 17:11         ` Qais Yousef
2021-03-10 14:44         ` Qais Yousef
2021-03-05 16:48       ` Qais Yousef
2020-10-23 10:12 ` [PATCH v4 16/19] sched/proc: Print accurate cpumask vs migrate_disable() Peter Zijlstra
2020-11-11  8:23   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 17/19] sched: Add migrate_disable() tracepoints Peter Zijlstra
2020-10-29 16:27   ` Valentin Schneider
2020-10-29 17:43     ` Peter Zijlstra
2020-10-29 17:56       ` Valentin Schneider
2020-10-29 17:59         ` Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 18/19] sched: Deny self-issued __set_cpus_allowed_ptr() when migrate_disable() Peter Zijlstra
2020-10-23 10:12 ` [PATCH v4 19/19] sched: Comment affine_move_task() Peter Zijlstra
2020-10-29 16:27   ` Valentin Schneider
2020-10-29 17:44     ` Peter Zijlstra
2020-10-29 19:03 ` [PATCH v4 00/19] sched: Migrate disable support Valentin Schneider
2020-11-09 16:39 ` Daniel Bristot de Oliveira

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