[LU-13222] sanity test 77k fails with 'test_77k returned 3'

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.14.0
• Labels: ppc
• Environment: PPC clients
• Severity: 3
• Assignee: WC Triage
• Reporter: James Nunez (Inactive)

Description

sanity test 77k fails with 'test_77k returned 3' fails 100% of the time for PPC client testing. Looking at a recent failure at https://testing.whamcloud.com/test_sets/84995f3c-492f-11ea-b69a-52540065bddc, the suite_log doesn’t have explicit errors, but it looks like the checksums parameter is not being updated or updated after 90 seconds

remount client, checksum should be 0
CMD: trevis-77vm3.trevis.whamcloud.com grep -c /mnt/lustre' ' /proc/mounts
Stopping client trevis-77vm3.trevis.whamcloud.com /mnt/lustre (opts:)
CMD: trevis-77vm3.trevis.whamcloud.com lsof -t /mnt/lustre
CMD: trevis-77vm3.trevis.whamcloud.com umount  /mnt/lustre 2>&1
Starting client: trevis-77vm3.trevis.whamcloud.com:  -o user_xattr,flock trevis-37vm12@tcp:/lustre /mnt/lustre
CMD: trevis-77vm3.trevis.whamcloud.com mkdir -p /mnt/lustre
CMD: trevis-77vm3.trevis.whamcloud.com mount -t lustre -o user_xattr,flock trevis-37vm12@tcp:/lustre /mnt/lustre
CMD: trevis-37vm12 /usr/sbin/lctl set_param -P osc.lustre*.checksums=1
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
Waiting 90 secs for update
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
…
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
Update not seen after 90s: wanted '1' got '0'
remount client, checksum should be 1

Then later, we see a similar issue. It looks like the checksums is now equal to 1, but we want to change it to 0

remount client with option nochecksum, checksum should be 0
10.9.3.144@tcp:/lustre /mnt/lustre lustre rw,flock,user_xattr,lazystatfs 0 0
CMD: trevis-77vm3.trevis.whamcloud.com grep -c /mnt/lustre' ' /proc/mounts
Stopping client trevis-77vm3.trevis.whamcloud.com /mnt/lustre (opts:)
…
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
CMD: trevis-77vm3.trevis.whamcloud.com /usr/sbin/lctl get_param -n osc.lustre*.checksums | head -n1
Update not seen after 90s: wanted '0' got '1'
test_77k returned 3
FAIL 77k (188s)

Logs for some of the sanity test 77k failures are at
https://testing.whamcloud.com/test_sets/938aedee-33fe-11ea-bb75-52540065bddc
https://testing.whamcloud.com/test_sets/6683367e-e757-11e9-b62b-52540065bddc