2602773 - Enabling I/O fencing on VMWare may crash server or get signal 11 on function decode_dev_ids - SAP ASE CE | SAP Knowledge Base Article

SAP Knowledge Base Article - Preview

2602773 - Enabling I/O fencing on VMWare may crash server or get signal 11 on function decode_dev_ids - SAP ASE CE

Symptom

  • During installation or restarting the ASE Cluster Edition the signal 11 on function decode_dev_ids may reported and even at time the server may crash.
  • This is noticed only when enabling “enable i/o fencing” flag on and from OS the I/O fencing is enabled.
  • In the ASE Errorlog we can notice the below errors

kernel  XXXX module: decode_dev_ids: Warning guid is too long. It will be truncated.
kernel  XXXX module: decode_dev_ids: Warning guid is too long. It will be truncated.
kernel  XXXX module: scsi_pgr_reserve: ioctl failed(Success)
kernel  XXXX module: xxxx_reserve_device: Error(-2) while reserving key(4bc96680)
kernel  XXXX module: xxxx_reserve_device: Unregistering host key(4bc96680)
kernel  iof_reserve_device: Error(-9) while reserving fence device /dev/sg4
kernel  udactivate: error -8 while reserving virtual device 2 for I/O fencing
server  Disk initialization for logical device 'temp_log_dev1' (physical path '/dev/raw/raw5') failed due to I/O fencing error and prevented instance 'ase1' (1) from joining the cluster. Refer to the instance error log for additional information.
kernel  ueshutdown: exiting

  • When signal 11 occurs, the following calls are reported:

decode_dev_ids
uc_stack:ss_size:ss_flags
nthrd_backtrace
 
Note: The more complete stack is avaialable undert Attachments


Read more...

Environment

  • SAP Adaptive Server Enterprise Cluster Edition (ASE CE) 15.7
  • SAP Adaptive Server Enterprise Cluster Edition (ASE CE) 16.0
  • VM-Ware configuration

Product

SAP Adaptive Server Enterprise 15.7 Cluster Edition ; SAP Adaptive Server Enterprise 16.0 Cluster Edition

Keywords

SEGV, segmentation, storage, access, violation, fault, segfault, kisignal, stacktrace,  stack, registers, CR#813411, 813411, CR813411, VM-Ware, iofencing, fencing , KBA , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , Bug Filed

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.