Heya,
That's what I see while I boot today's Rawhide Kernel.
If you need more info, just ping me here.
======================================================
...
[176092.303585] lock(&dev->device_lock);
[176092.307947]
[176092.307947] *** DEADLOCK ***
[176092.307947]
[176092.314943] 2 locks held by systemd/1:
[176092.319283] #0: (misc_mtx){+.+.+.}, at: [<ffffffff814534b8>] misc_open+0x28/0x1d0
[176092.328104] #1: (&wdd->lock){+.+...}, at: [<ffffffff81557f22>] watchdog_start+0x22/0x80
[176092.337532]
[176092.337532] stack backtrace:
[176092.342661] CPU: 1 PID: 1 Comm: systemd Not tainted 3.10.0-0.rc0.git23.1.fc20.x86_64 #1
[176092.351823] Hardware name: Intel Corporation Shark Bay Client platform/Flathead Creek
Crb, BIOS HSWLPTU1.86C.0109.R03.1301282055 01/28/2013
[176092.366101] ffffffff8257d070 ffff880241b1b9c0 ffffffff81719128 ffff880241b1ba00
[176092.374617] ffffffff81714d75 ffff880241b1ba50 ffff880241b80960 ffff880241b80000
[176092.383130] 0000000000000002 0000000000000002 ffff880241b80960 ffff880241b1bac0
[176092.391647] Call Trace:
[176092.394514] [<ffffffff81719128>] dump_stack+0x19/0x1b
2m OK ] Re[176092.400430] [<ffffffff81714d75>] print_circular_bug+0x201/0x210
[176092.408898] [<ffffffff810db094>] __lock_acquire+0x17c4/0x1b30
ached target Shu[176092.415602] [<ffffffff81720d7c>] ? _raw_spin_unlock_irq+0x2c/0x50
[176092.424276] [<ffffffff810dbbf2>] lock_acquire+0xa2/0x1f0
tdown.
[176092.430489] [<ffffffff8149028d>] ? mei_wd_ops_start+0x2d/0xf0
[176092.438070] [<ffffffff8171d590>] mutex_lock_nested+0x80/0x400
[176092.444772] [<ffffffff8149028d>] ? mei_wd_ops_start+0x2d/0xf0
[176092.451471] [<ffffffff8149028d>] ? mei_wd_ops_start+0x2d/0xf0
[176092.458172] [<ffffffff81557f22>] ? watchdog_start+0x22/0x80
[176092.464678] [<ffffffff81557f22>] ? watchdog_start+0x22/0x80
[176092.471182] [<ffffffff8149028d>] mei_wd_ops_start+0x2d/0xf0
[176092.477687] [<ffffffff81557f5d>] watchdog_start+0x5d/0x80
[176092.483994] [<ffffffff81558168>] watchdog_open+0x88/0xf0
[176092.490214] [<ffffffff81453547>] misc_open+0xb7/0x1d0
[176092.496128] [<ffffffff811e15d2>] chrdev_open+0x92/0x1d0
[176092.502240] [<ffffffff811da57b>] do_dentry_open+0x24b/0x300
[176092.508745] [<ffffffff812e8e7c>] ? security_inode_permission+0x1c/0x30
[176092.516330] [<ffffffff811e1540>] ? cdev_put+0x30/0x30
[176092.522243] [<ffffffff811da670>] finish_open+0x40/0x50
[176092.528256] [<ffffffff811ec139>] do_last+0x4d9/0xe40
[176092.534071] [<ffffffff811ecb53>] path_openat+0xb3/0x530
[176092.540193] [<ffffffff810acc1f>] ? local_clock+0x5f/0x70
[176092.546403] [<ffffffff8101fcf5>] ? native_sched_clock+0x15/0x80
[176092.553301] [<ffffffff810d5d9d>] ? trace_hardirqs_off+0xd/0x10
[176092.560099] [<ffffffff811ed658>] do_filp_open+0x38/0x80
[176092.566211] [<ffffffff81720c77>] ? _raw_spin_unlock+0x27/0x40
[176092.572913] [<ffffffff811fc39f>] ? __alloc_fd+0xaf/0x200
[176092.579123] [<ffffffff811db9a9>] do_sys_open+0xe9/0x1c0
[176092.585235] [<ffffffff811dba9e>] SyS_open+0x1e/0x20
[176092.590953] [<ffffffff8172a999>] system_call_fastpath+0x16/0x1b
Sending SIGTERM to remaining processes...
[176092.622745] systemd-journald[338]: Received SIGTERM
Sending SIGKILL to remaining processes...
Hardware watchdog 'INTCAMT', version 0
Unmounting file systems.
Unmounting /sys/kernel/config.
Unmounting /dev/mqueue.
Unmounting /dev/hugepages.
Unmounting /sys/kernel/debug.
[176094.363845] EXT4-fs (dm-1): re-mounted. Opts: (null)
[176094.548631] EXT4-fs (dm-1): re-mounted. Opts: (null)
[176094.554450] EXT4-fs (dm-1): re-mounted. Opts: (null)
All filesystems unmounted.
Deactivating swaps.
All swaps deactivated.
Detaching loop devices.
All loop devices detached.
Detaching DM devices.
Detaching DM 253:2.
Detaching DM 253:0.
Not all DM devices detached, 1 left.
Detaching DM devices.
Not all DM devices detached, 1 left.
Cannot finalize remaining file systems and devices, giving up.
Storage is finalized.
Successfully changed into root pivot.
Returning to initrd...
[176094.675812] dracut Warning: Killing all remaining processes
...
======================================================
/kashyap
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