Comment # 13 on bug 1175893 from Ruediger Oertel

looks like qualcomm centriq qdf2400 is also affected:

ibs-centriq-3, all workers (qemu processes) stopped:
load stays at >650 (with the CPUs being at 0%)

top - 16:37:17 up 6 days, 22:42,  1 user,  load average: 668.99, 755.45, 800.31
Tasks: 482 total,   1 running, 481 sleeping,   0 stopped,   0 zombie
%Cpu(s):  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem : 96213.84+total, 1096.566 free, 82666.77+used, 12450.50+buff/cache
MiB Swap: 1003.902 total,  954.340 free,   49.562 used. 12136.80+avail Mem 

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND    
 1104 root      20   0    9100   3808   2828 R 0.660 0.004   0:00.40 top        
   10 root      20   0       0      0      0 I 0.330 0.000  10:15.34 rcu_sched  
    1 root      20   0  162872   6508   4592 S 0.000 0.007  19:06.77 systemd    
    2 root      20   0       0      0      0 S 0.000 0.000   0:09.05 kthreadd   
    3 root       0 -20       0      0      0 I 0.000 0.000   0:00.00 rcu_gp     
    4 root       0 -20       0      0      0 I 0.000 0.000   0:00.00 rcu_par_gp 
    6 root       0 -20       0      0      0 I 0.000 0.000   0:00.00
kworker/0:0H-kblockd                                                            
    8 root       0 -20       0      0      0 I 0.000 0.000   0:00.00
mm_percpu_wq