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Kernel update to version 4.4.156-94.57 breaks virtualization and multipath.

This document (7023431) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise Server 12 SP3

Situation

After applying SLES12 SP3 Kernel 4.4.156-94.57-default, any access to multipath devices is refused with an I/O error.
The errors may also be seen when accessing any type of filesystem for example:
 
kernel: [ 2596.496125] EXT4-fs error: 184 callbacks suppressed
kernel: [ 2596.496131] EXT4-fs error (device vda1) in ext4_reserve_inode_write:5439: Out of memory
kernel: [ 2596.497423] EXT4-fs error (device vda1):
 
or
 
kernel: [   36.224474] device-mapper: multipath: Reinstating path 65:16.
kernel: [   36.224743] device-mapper: multipath: Failing path 65:16.
kernel: [   36.224888] device-mapper: multipath: Reinstating path 66:32.
kernel: [   36.225046] device-mapper: multipath: Failing path 66:32.

Resolution

Resolution:
 
Patch SUSE-SLE-SERVER-12-SP3-2018-2203 was released to address this issue.
The solution to this problem will be to upgrade kernel 4.4.156-94.57, to kernel 4.4.156-94.61.1
 
 
 
 
 

Additional Information

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7023431
  • Creation Date: 10-Oct-2018
  • Modified Date:19-Feb-2021
    • SUSE Linux Enterprise Server

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