The linux-next commit "PM / wakeup: Show wakeup sources stats in sysfs" [1] introduced some baddies during boot on several x86 servers. Reverted the commit fixed the issue.
[1] https://lore.kernel.org/lkml/[email protected]/ [ 39.195053][ T1] serio: i8042 KBD port at 0x60,0x64 irq 1 [ 39.197347][ T1] kobject_add_internal failed for wakeup (error: -2 parent: serio0) [ 39.199845][ T1] INFO: trying to register non-static key. [ 39.201582][ T1] the code is fine but needs lockdep annotation. [ 39.203477][ T1] turning off the locking correctness validator. [ 39.205399][ T1] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc4- next-20190813 #3 [ 39.207938][ T1] Hardware name: HP ProLiant XL420 Gen9/ProLiant XL420 Gen9, BIOS U19 12/27/2015 [ 39.210606][ T1] Call Trace: [ 39.210606][ T1] dump_stack+0x62/0x9a [ 39.210606][ T1] register_lock_class+0x95a/0x960 [ 39.210606][ T1] ? __platform_driver_probe+0xcd/0x230 [ 39.210606][ T1] ? __platform_create_bundle+0xc0/0xe0 [ 39.210606][ T1] ? i8042_init+0x4ec/0x578 [ 39.210606][ T1] ? do_one_initcall+0xfe/0x45a [ 39.219571][ T1] ? kernel_init_freeable+0x614/0x6a7 [ 39.219571][ T1] ? kernel_init+0x11/0x138 [ 39.219571][ T1] ? ret_from_fork+0x35/0x40 [ 39.219571][ T1] ? is_dynamic_key+0xf0/0xf0 [ 39.219571][ T1] ? rwlock_bug.part.0+0x60/0x60 [ 39.219571][ T1] ? __debug_check_no_obj_freed+0x8e/0x250 [ 39.219571][ T1] __lock_acquire.isra.13+0x5f/0x830 [ 39.229491][ T1] ? __debug_check_no_obj_freed+0x152/0x250 [ 39.229491][ T1] lock_acquire+0x107/0x220 [ 39.229491][ T1] ? __pm_relax.part.2+0x21/0xa0 [ 39.229491][ T1] _raw_spin_lock_irqsave+0x35/0x50 [ 39.229491][ T1] ? __pm_relax.part.2+0x21/0xa0 [ 39.229491][ T1] __pm_relax.part.2+0x21/0xa0 [ 39.239588][ T1] wakeup_source_destroy.part.3+0x18/0x190 [ 39.239588][ T1] wakeup_source_register+0x43/0x50 [ 39.239588][ T1] device_wakeup_enable+0x76/0x170 [ 39.239588][ T1] device_set_wakeup_enable+0x13/0x20 [ 39.239588][ T1] i80probe+0x921/0xa45 [ 39.339546][ T1] ? i8042_toggle_aux+0xeb/0xeb [ 39.349486][ T1] ? kernfs_create_link+0xce/0x100 [ 39.349486][ T1] ? sysfs_do_create_link_sd+0x7b/0xe0 [ 39.349486][ T1] ? acpi_dev_pm_attach+0x31/0xf0 [ 39.349486][ T1] platform_drv_probe+0x51/0xe0 [ 39.349486][ T1] really_probe+0x1a2/0x630 [ 39.349486][ T1] ? device_driver_attach+0xa0/0xa0 [ 39.349486][ T1] driver_probe_device+0xcd/0x1f0 [ 39.359562][ T1] ? device_driver_attach+0xa0/0xa0 [ 39.359562][ T1] device_driver_attach+0x8f/0xa0 [ 39.359562][ T1] __driver_attach+0xc7/0x1a0 [ 39.359562][ T1] bus_for_each_dev+0xfe/0x160 [ 39.359562][ T1] ? subsys_dev_iter_init+0x80/0x80 [ 39.359562][ T1] ? __kasan_check_read+0x11/0x20 [ 39.359562][ T1] ? _raw_spin_unlock+0x27/0x40 [ 39.369488][ T1] driver_attach+0x2b/0x30 [ 39.369488][ T1] bus_add_driver+0x298/0x350 [ 39.369488][ T1] driver_register+0xdc/0x1d0 [ 39.369488][ T1] ? i8042_toggle_aux+0xeb/0xeb [ 39.369488][ T1] __platform_driver_probe+0xcd/0x230 [ 39.3 __platform_create_bundle+0xc0/0xe0 [ 39.769489][ T1] ? i8042_toggle_aux+0xeb/0xeb [ 39.779556][ T1] ? i8042_probe+0xa45/0xa45 [ 39.779556][ T1] i8042_init+0x4ec/0x578 [ 39.779556][ T1] ? i8042_probe+0xa45/0xa45 [ 39.779556][ T1] ? netdev_run_todo+0x2f/0x4a0 [ 39.779556][ T1] ? qdisc_create_dflt+0xf0/0xf0 [ 39.779556][ T1] ? net_olddevs_init+0x67/0x67 [ 39.779556][ T1] ? i8042_probe+0xa45/0xa45 [ 39.789486][ T1] do_one_initcall+0xfe/0x45a [ 39.789486][ T1] ? initcall_blacklisted+0x150/0x150 [ 39.789486][ T1] ? __kasan_check_write+0x14/0x20 [ 39.789486][ T1] ? up_write+0xee/0x2a0 [ 39.789486][ T1] kernel_init_freeable+0x614/0x6a7 [ 39.789486][ T1] ? rest_init+0x188/0x188 [ 39.789486][ T1] kernel_init+0x11/0x138 [ 39.799563][ T1] ? rest_init+0x188/0x188 [ 39.799563][ T1] ret_from_fork+0x35/0x40 [ 39.803412][ T1] serio: i8042 AUX port at 0x60,0x64 irq 12
