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Message-ID: <20181124035803.GX3065@bombadil.infradead.org>
Date:   Fri, 23 Nov 2018 19:58:03 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     kernel test robot <lkp@...el.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>, LKP <lkp@...org>,
        linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org,
        linux-input@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        intel-gfx@...ts.freedesktop.org, linuxppc-dev@...ts.ozlabs.org,
        linux-parisc@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: dad4f140ed ("Merge branch 'xarray' of .."):  Mem-Info:

On Sat, Nov 24, 2018 at 09:20:38AM +0800, kernel test robot wrote:
> Greetings,
> 
> 0day kernel testing robot got the below dmesg and the first bad commit is
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> 
> commit dad4f140edaa3f6bb452b6913d41af1ffd672e45

I think you've got the wrong bisection point, confused by other messages.
Here's the messages I think you intend to chase:

[  155.389297] BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck
 for 52s!
[  155.409004] BUG: workqueue lockup - pool cpus=0 flags=0x4 nice=0 stuck for 40
s!
[  155.420377] Showing busy workqueues and worker pools:
[  155.428445] workqueue events: flags=0x0
[  155.434634]   pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256
[  155.437904]     pending: cache_reap
[  155.449671] workqueue events_power_efficient: flags=0x82
[  155.458000]   pwq 2: cpus=0 flags=0x4 nice=0 active=3/256
[  155.461269]     pending: neigh_periodic_work, do_cache_clean, check_lifetime


but you're getting hung up on the testsuite problems.


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