[LU-11597] sanityn test 16a failed with direct I/O

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.15.0
• Affects Version/s: Lustre 2.12.0, Lustre 2.13.0, Lustre 2.12.2, Lustre 2.12.3, Lustre 2.14.0, Lustre 2.12.4, Lustre 2.12.5
• Labels: arm ppc
• Environment: Lustre Build: https://build.whamcloud.com/job/lustre-master/3811 ; Distro/Arch: RHEL7.5/aarch64 (client), RHEL7.5/x86_64 (server)
• Severity: 3
• Assignee: Jian Yu
• Reporter: Jian Yu

Description

sanity test 241b failed with direct I/O:

== sanity test 241b: dio vs dio ====================================================================== 08:45:10 (1540543510)
1+0 records in
1+0 records out
40960 bytes (41 kB) copied, 0.00274397 s, 14.9 MB/s
-rw-r--r-- 1 root root 40960 Oct 26 08:45 /mnt/lustre/f241b.sanity
 sanity test_241b: @@@@@@ FAIL: test_241b failed with 1 

Maloo report: https://testing.whamcloud.com/test_sets/88bbf5c2-d9d0-11e8-b46b-52540065bddc

sanity tests 270a, 315, and sanityn test 16a also failed with the same issue:
https://testing.whamcloud.com/test_sets/88bbf5c2-d9d0-11e8-b46b-52540065bddc
https://testing.whamcloud.com/test_sets/8b2f4282-d9d0-11e8-b46b-52540065bddc

Issue Links

• is related to: LU-10929 skip sanity/315 if IO accounting is not supported
• is related to: LU-10300 Can the Lustre 2.10.x clients support 64K kernel page?
• is related to: LU-11527 sanity test_270a failed with O_DIRECT on ARM