CC perf maintainers for the BUG in v4.14-rc6.

On Sun, Oct 29, 2017 at 11:51:55PM +0100, Fengguang Wu wrote:
>Hi Linus,
>
>Up to now we see the below boot error/warnings when testing v4.14-rc6.
>
>They hit the RC release mainly due to various imperfections in 0day's
>auto bisection. So I manually list them here and CC the likely easy to
>debug ones to the corresponding maintainers in the followup emails.
>
>boot_successes: 4700
>boot_failures: 247
>
>BUG:kernel_hang_in_test_stage: 152
>BUG:kernel_reboot-without-warning_in_test_stage: 10
>BUG:sleeping_function_called_from_invalid_context_at_kernel/locking/mutex.c: 1

The dmesg fragment is

[   40.886662] done
[   40.886686] 
[   40.905102] capability: warning: `turbostat' uses 32-bit capabilities (legacy support in use)
[   40.940087] IPMI Device Information
[   41.073351] 
[   41.076223] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97
[   41.076224] in_atomic(): 1, irqs_disabled(): 0, pid: 14, name: watchdog/0
[   41.076226] CPU: 0 PID: 14 Comm: watchdog/0 Tainted: G           O    4.8.0-01558-g21f54dd #1
[   41.076228] Hardware name: Dell Inc. PowerEdge R630/0CNCJW, BIOS 2.1.7 06/16/2016
[   41.076231]  ffffc900001bfd90 ffffffff813de3b9 ffff882062ab4b80 0000000000000061
[   41.076232]  ffffc900001bfda8 ffffffff810a7083 ffffffff81c6fa60 ffffc900001bfdd0
[   41.076233]  ffffffff810a711a ffff88206661d4a8 ffff882066037800 ffff88206661d4a8
[   41.076234] Call Trace:
[   41.076240]  [<ffffffff813de3b9>] dump_stack+0x63/0x8a
[   41.076246]  [<ffffffff810a7083>] ___might_sleep+0xd3/0x120
[   41.076248]  [<ffffffff810a711a>] __might_sleep+0x4a/0x80
[   41.076254]  [<ffffffff818c5550>] mutex_lock+0x20/0x50
[   41.076256]  [<ffffffff81179882>] perf_event_ctx_lock_nested+0x52/0xa0
[   41.076259]  [<ffffffff8117ca1f>] perf_event_disable+0xf/0x30
[   41.076261]  [<ffffffff81132056>] watchdog_nmi_disable+0x36/0x70
[   41.076263]  [<ffffffff810a3a24>] ? smpboot_thread_fn+0x34/0x1f0
[   41.076264]  [<ffffffff811320dd>] watchdog_disable+0x4d/0x60
[   41.076266]  [<ffffffff810a3b53>] smpboot_thread_fn+0x163/0x1f0
[   41.076267]  [<ffffffff810a39f0>] ? sort_range+0x30/0x30
[   41.076269]  [<ffffffff810a05f5>] kthread+0xd5/0xf0
[   41.076270]  [<ffffffff810a0520>] ? kthread_park+0x60/0x60
[   41.076272]  [<ffffffff818c8345>] ret_from_fork+0x25/0x30
[   41.339021] BMC ARP Control         : ARP Responses Enabled, Gratuitous ARP Disabled
[   41.911445] 2017-10-24 01:28:46 echo '
[   41.917457] [global]
[   41.921514] bs=2M
[   41.925459] ioengine=sync

The .config is attached.

Thanks,
Fengguang