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z90crypt.service startup fails

This document (7022719) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 2 (SLES 12 SP2)
SUSE Linux Enterprise Server 12 Service Pack 3 (SLES 12 SP3)


boot.z90crypt a traditional sysV init script is loading a s390x specific crypto module
The systemd z90crypt.service and systemctl status information for z90crypt print that it failed to start during and after boot:

sles12 boot.z90crypt[1237]: Loading z90crypt module -  no device, maybe HW not found (see dmesg)..failed                      
sles12 systemd[1]: z90crypt.service: Control process exited, code=exited status=1                                           
sles12 systemd[1]: Failed to start LSB: Load the z90crypt module.                                                       
sles12 systemd[1]: z90crypt.service: Unit entered failed state.                                                          
sles12 systemd[1]: z90crypt.service: Failed with  result 'exit-code'.

sles12:~ # systemctl status z90crypt                                  
 z90crypt.service - LSB: Load the z90crypt module                     
  Loaded: loaded (/etc/init.d/boot.z90crypt; bad; vendor preset: disabled)                                                              
  Active: failed (Result: exit-code) since Tue 2018-03-06 08:57:49 PST; 2 days ago
  Docs: man:systemd-sysv-generator(8)                               
  Process: 1237 ExecStart=/etc/init.d/boot.z90crypt start (code=exited, status=1/FAILURE)                                                      

After restarting z90crypt service, the status shows then it was started:
sles12:~ # systemctl status z90crypt 
z90crypt.service - LSB: Load the z90crypt module                       
   Loaded: loaded (/etc/init.d/boot.z90crypt; bad; vendor preset: disabled)
   Active: active (exited) since Tue 2018-03-06 09:15:33 PST; 2 days ago        
     Docs: man:systemd-sysv-generator(8)                               
  Process: 2828 ExecStart=/etc/init.d/boot.z90crypt start (code=exited, status=0/SUCCESS)


For SLES12 SP3, the libica update, libica3-3.0.2-5.5.1 released November 2018 includes the patch to resolve the problem.

On SLES12 SP2 a future libica update will include the patch to resolve the problem. Customers affected by this issue can alternatively contact SUSE Customer Care to request a PTF (temporary fix).


The boot.z90crypt also prints:
boot.z90crypt[1237]: Loading z90crypt module -  no device, maybe HW not found (see dmesg)..failed  
It looks like the z90crypt module is trying to load but can't find the hardware due to the timing of udev events.

Additional Information


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  • Document ID:7022719
  • Creation Date: 08-Mar-2018
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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