From: Linus Torvalds <torvalds@linux-foundation.org>
To: Fengguang Wu <fengguang.wu@intel.com>
Cc: Network Development <netdev@vger.kernel.org>,
Phil Sutter <phil@nwl.cc>, Thomas Graf <tgraf@suug.ch>,
Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
Florian Westphal <fw@strlen.de>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
LKP <lkp@01.org>
Subject: Re: [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds.
Date: Mon, 27 Nov 2017 13:34:55 -0800 [thread overview]
Message-ID: <CA+55aFzouo1TKk9SOBL5Hht1p8R=MTn18wgW=0TmMDgBRUS23A@mail.gmail.com> (raw)
In-Reply-To: <20171121115228.v3z5vxaiirdh276q@wfg-t540p.sh.intel.com>
On Tue, Nov 21, 2017 at 3:52 AM, Fengguang Wu <fengguang.wu@intel.com> wrote:
> Here is a different call trace related to rhashtable.
>
> It occurs in 17 out of 90 boots.
>
> [ 342.666234] Writes: Total: 4 Max/Min: 0/0 Fail: 0
> [ 381.918047] INFO: task swapper/0:1 blocked for more than 120 seconds.
This looks very similar to the other lockup case: lock torture testing
and rhashtable testing at the same time, causing long long delays..
Linus
WARNING: multiple messages have this Message-ID (diff)
From: Linus Torvalds <torvalds@linux-foundation.org>
To: lkp@lists.01.org
Subject: Re: [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds.
Date: Mon, 27 Nov 2017 13:34:55 -0800 [thread overview]
Message-ID: <CA+55aFzouo1TKk9SOBL5Hht1p8R=MTn18wgW=0TmMDgBRUS23A@mail.gmail.com> (raw)
In-Reply-To: <20171121115228.v3z5vxaiirdh276q@wfg-t540p.sh.intel.com>
[-- Attachment #1: Type: text/plain, Size: 476 bytes --]
On Tue, Nov 21, 2017 at 3:52 AM, Fengguang Wu <fengguang.wu@intel.com> wrote:
> Here is a different call trace related to rhashtable.
>
> It occurs in 17 out of 90 boots.
>
> [ 342.666234] Writes: Total: 4 Max/Min: 0/0 Fail: 0
> [ 381.918047] INFO: task swapper/0:1 blocked for more than 120 seconds.
This looks very similar to the other lockup case: lock torture testing
and rhashtable testing at the same time, causing long long delays..
Linus
next prev parent reply other threads:[~2017-11-27 21:34 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-21 9:05 active bugs in the first week of 4.15 merge window Fengguang Wu
2017-11-21 10:04 ` [test_abba] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 10:04 ` Fengguang Wu
2017-11-21 10:54 ` [ata_port_detach] WARNING: CPU: 0 PID: 1 at drivers/ata/libata-core.c:6613 ata_port_detach+0x9b/0x180 Fengguang Wu
2017-11-21 10:54 ` Fengguang Wu
2017-11-21 11:30 ` Arnd Bergmann
2017-11-21 11:30 ` Arnd Bergmann
2017-11-21 11:07 ` [tracer_init_tracefs] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1] Fengguang Wu
2017-11-21 11:07 ` Fengguang Wu
2017-11-21 12:27 ` Fengguang Wu
2017-11-21 12:27 ` Fengguang Wu
2017-11-21 13:55 ` Thomas Gleixner
2017-11-21 13:55 ` Thomas Gleixner
2017-11-21 11:10 ` [rbtree_test_init] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] Fengguang Wu
2017-11-21 11:10 ` Fengguang Wu
2017-11-21 21:59 ` Andrew Morton
2017-11-21 21:59 ` Andrew Morton
2017-11-22 2:15 ` Fengguang Wu
2017-11-22 2:15 ` Fengguang Wu
2017-11-21 11:19 ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Fengguang Wu
2017-11-21 11:19 ` Fengguang Wu
2017-11-21 11:52 ` [test_rht_init] INFO: task swapper/0:1 blocked for more than 120 seconds Fengguang Wu
2017-11-21 11:52 ` Fengguang Wu
2017-11-27 21:34 ` Linus Torvalds [this message]
2017-11-27 21:34 ` Linus Torvalds
2017-11-27 21:32 ` [rht_deferred_worker] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 62s! Linus Torvalds
2017-11-27 21:32 ` Linus Torvalds
2017-11-21 11:53 ` [vga_arb_device_init] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 11:53 ` Fengguang Wu
2017-11-21 16:52 ` Lukas Wunner
2017-11-21 16:52 ` Lukas Wunner
2017-11-21 16:52 ` Lukas Wunner
2017-11-22 9:07 ` Daniel Vetter
2017-11-22 9:07 ` Daniel Vetter
2017-11-22 9:07 ` Daniel Vetter
2017-11-21 17:08 ` [char-misc] " Daniel Vetter
2017-11-21 17:08 ` Daniel Vetter
2017-11-21 12:04 ` [migration_cpu_stop] WARNING: CPU: 0 PID: 11 at kernel/sched/core.c:1187 set_task_cpu+0x257/0x6b6 Fengguang Wu
2017-11-21 12:04 ` Fengguang Wu
2017-11-21 13:34 ` Peter Zijlstra
2017-11-21 13:34 ` Peter Zijlstra
2017-11-21 13:51 ` Fengguang Wu
2017-11-21 13:51 ` Fengguang Wu
2017-11-21 16:13 ` Paul E. McKenney
2017-11-21 16:13 ` Paul E. McKenney
2017-11-22 12:18 ` Fengguang Wu
2017-11-22 12:18 ` Fengguang Wu
2017-11-21 14:01 ` Rafael J. Wysocki
2017-11-21 14:01 ` Rafael J. Wysocki
2017-11-21 12:09 ` [ata_port_probe] BUG: unable to handle kernel NULL pointer dereference at 0000000000000350 Fengguang Wu
2017-11-21 12:09 ` Fengguang Wu
2017-11-21 12:19 ` Fengguang Wu
2017-11-21 12:19 ` Fengguang Wu
2017-11-21 12:54 ` Arnd Bergmann
2017-11-21 12:54 ` Arnd Bergmann
2017-11-21 14:57 ` Tejun Heo
2017-11-21 14:57 ` Tejun Heo
2017-11-21 15:30 ` Arnd Bergmann
2017-11-21 15:30 ` Arnd Bergmann
2017-11-21 12:12 ` [RING_BUFFER_BENCHMARK] INFO: task rb_producer:73 blocked for more than 120 seconds Fengguang Wu
2017-11-21 13:28 ` Fengguang Wu
2017-11-21 13:28 ` Fengguang Wu
2017-11-21 12:33 ` [serial8250_interrupt] RIP: 0010:arch_local_irq_restore+0x2/0x8 Fengguang Wu
2017-11-21 12:33 ` Fengguang Wu
2017-11-21 12:33 ` Fengguang Wu
2017-11-21 13:31 ` Fengguang Wu
2017-11-21 13:31 ` Fengguang Wu
2017-11-21 14:39 ` Andy Shevchenko
2017-11-21 14:39 ` Andy Shevchenko
2017-11-21 21:14 ` Andy Shevchenko
2017-11-21 21:14 ` Andy Shevchenko
2017-11-22 23:36 ` Fengguang Wu
2017-11-22 23:36 ` Fengguang Wu
2017-11-22 23:43 ` Fengguang Wu
2017-11-22 23:43 ` Fengguang Wu
2017-11-21 12:41 ` [e1000_shutdown] e1000 0000:00:03.0: disabling already-disabled device Fengguang Wu
2017-11-21 12:41 ` Fengguang Wu
2017-11-21 12:41 ` [Intel-wired-lan] " Fengguang Wu
2017-11-21 22:10 ` Tushar Dave
2017-11-21 22:10 ` Tushar Dave
2017-11-21 22:10 ` [Intel-wired-lan] " Tushar Dave
2017-11-22 23:13 ` Fengguang Wu
2017-11-22 23:13 ` Fengguang Wu
2017-11-22 23:13 ` [Intel-wired-lan] " Fengguang Wu
2017-11-27 19:31 ` Tushar Dave
2017-11-27 19:31 ` Tushar Dave
2017-11-27 19:31 ` [Intel-wired-lan] " Tushar Dave
2017-12-04 11:33 ` Fengguang Wu
2017-12-04 11:33 ` Fengguang Wu
2017-12-04 11:33 ` [Intel-wired-lan] " Fengguang Wu
2017-12-05 19:19 ` Tushar Dave
2017-12-05 19:19 ` Tushar Dave
2017-12-05 19:19 ` [Intel-wired-lan] " Tushar Dave
2017-11-21 12:50 ` [test_cycle_work] WARNING: possible circular locking dependency detected Fengguang Wu
2017-11-21 12:50 ` Fengguang Wu
2017-11-21 13:01 ` [hrtimer_active] INFO: trying to register non-static key Fengguang Wu
2017-11-21 13:01 ` Fengguang Wu
2017-11-22 14:37 ` [hrtimer_active ^W ata_port_wait_eh] " Thomas Gleixner
2017-11-22 14:37 ` Thomas Gleixner
2017-11-24 12:49 ` Tejun Heo
2017-11-24 12:49 ` Tejun Heo
2017-11-24 13:41 ` Fengguang Wu
2017-11-24 13:41 ` Fengguang Wu
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