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 Service Pack 3 (SLES 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

For the respective architecture :
x86_64: https://download.suse.com/Download?buildid=YS7EWcgGchs~
ppc64 : https://download.suse.com/Download?buildid=s57IyOa_Iw8~
aarch64 : http://download.novell.com/Download?buildid=dt_GGBRyDbo~ 





Cause


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:03-Mar-2020
    • SUSE Linux Enterprise Server

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