Comment # 13 on bug 1044294 from Johannes Thumshirn

(In reply to Ruediger Meier from comment #9)
> Seems I have the same issue
> 
> [   72.229523] BUG: sleeping function called from invalid context at
> ../kernel/locking/mutex.c:97
> [   72.229538] in_atomic(): 1, irqs_disabled(): 0, pid: 2387, name: mdadm
> [   72.229544] CPU: 2 PID: 2387 Comm: mdadm Not tainted 4.4.73-18.17-default
> #1
> [   72.229547] Hardware name: LENOVO 346034G/346034G, BIOS G6ETB5WW (2.75 )
> 09/01/2016
> 
> 
> I can reproduce it 100%, but only on that Lenovo machine above
> not on Qemu (I haven't tested other real machines yet.)
> 
> For me this kernel needs to run to trigger the bug:
> kernel-default-4.4.73-18.17.1.x86_64
> 
> The previous kernel 4.4.72 works
> 
> I run util-linux test-suite:
> 
> $ cd util-linux/
> $ make -j4 fdisk blkid losetup
> $ sudo ./tests/ts/blkid/md-raid1-whole
> 
> 
> Mostly the system freezes completely.


Do I understand you correctly that there is no FCoE involved?