From: Matt Fleming <matt@codeblueprint.co.uk>
To: lkp@lists.01.org
Subject: Re: [sched/core] cb42c9a3eb WARNING: CPU: 0 PID: 40 at kernel/sched/sched.h:804 rq_clock_task
Date: Mon, 20 Feb 2017 22:21:33 +0000 [thread overview]
Message-ID: <20170220222133.GP28416@codeblueprint.co.uk> (raw)
In-Reply-To: <20170220015619.gnb6apcw3ahgw3rr@wfg-t540p.sh.intel.com>
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On Mon, 20 Feb, at 09:56:19AM, Fengguang Wu wrote:
>
> [ 83.791548] ------------[ cut here ]------------
> [ 83.793245] WARNING: CPU: 0 PID: 40 at kernel/sched/sched.h:804 rq_clock_task+0x126/0x290
> [ 83.796441] rq->clock_update_flags < RQCF_ACT_SKIP
> [ 83.796454] CPU: 0 PID: 40 Comm: torture_shuffle Not tainted 4.10.0-rc3-00256-gcb42c9a #3
> [ 83.800931] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
> [ 83.815146] Call Trace:
> [ 83.816232] dump_stack+0x2c6/0x39a
> [ 83.817461] __warn+0x23d/0x280
> [ 83.818643] ? rq_clock_task+0x126/0x290
> [ 83.819947] ? rq_clock_task+0x126/0x290
> [ 83.821244] warn_slowpath_fmt+0x57/0x70
> [ 83.831558] rq_clock_task+0x126/0x290
> [ 83.832837] set_next_entity+0x90/0xc0
> [ 83.834107] set_curr_task_fair+0x48/0x60
> [ 83.835414] do_set_cpus_allowed+0x26f/0x470
> [ 83.836768] __set_cpus_allowed_ptr+0x1e8/0x510
> [ 83.838161] set_cpus_allowed_ptr+0x1d/0x30
> [ 83.839498] torture_shuffle+0x21b/0x610
> [ 83.858854] kthread+0x224/0x240
> [ 83.860043] ? torture_shutdown+0x620/0x620
> [ 83.861375] ? __kthread_bind_mask+0xf0/0xf0
> [ 83.862748] ret_from_fork+0x19/0x30
> [ 83.864065] ---[ end trace 6227f0c8323ad65a ]---
> [ 86.016087] ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 11
Urgh, yeah. This is similar to the one that Peter fixed in
commit 1b1d62254df0f ("sched/core: Add missing update_rq_clock() call in sched_move_task()")
I'll take a closer look at submitting a fix in the morning.
prev parent reply other threads:[~2017-02-20 22:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-20 1:56 [sched/core] cb42c9a3eb WARNING: CPU: 0 PID: 40 at kernel/sched/sched.h:804 rq_clock_task Fengguang Wu
2017-02-20 22:21 ` Matt Fleming [this message]
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