[LU-11665] sanity test 101c: FAIL: Small 4k read IO 240 !

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.13.0, Lustre 2.12.7
• Affects Version/s: Lustre 2.12.0, Lustre 2.12.6
• Labels: arm ppc
• Environment: Arch: aarch64 (client)
• Severity: 3
• Assignee: Andreas Dilger
• Reporter: Jian Yu

Description

sanity test 101c failed as follows:

== sanity test 101c: check stripe_size aligned read-ahead ============================================ 02:36:43 (1540521403)
CMD: trevis-66vm1 /usr/sbin/lctl set_param -n obdfilter.lustre-OST*.read_cache_enable=0 		osd-*.lustre-OST*.read_cache_enable=0 2>&1
CMD: trevis-66vm1 /usr/sbin/lctl set_param -n obdfilter.lustre-OST*.writethrough_cache_enable=0 		osd-*.lustre-OST*.writethrough_cache_enable=0 2>&1
osc.lustre-OST0000-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0001-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0002-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0003-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0004-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0005-osc-ffff80002ec4d800.rpc_stats=0
osc.lustre-OST0006-osc-ffff80002ec4d800.rpc_stats=0

10.977066s, 59.7027MB/s
 sanity test_101c: @@@@@@ FAIL: Small 4k read IO 240 ! 

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