Confirm xfstest + nfs generic/568 failure issue

Confirm xfstest + nfs generic/568 failure issue

[Zhenyu Zhang]

Hello all,

Sorry to bother you.
When I run generic/568 on 64k kernel, I hit the following error:
 Sending command: ./check -virtiofs generic/568
 2023-06-05 05:33:10,297 avocado.test INFO | FSTYP         -- virtiofs
 PLATFORM      -- Linux/aarch64 localhost 5.14.0-319.el9.aarch64+64k #1 SMP PREEMPT_DYNAMIC Thu May 25 18:43:04 EDT 2023
 MKFS_OPTIONS  -- myfs2
 MOUNT_OPTIONS -- -o context=system_u:object_r:root_t:s0 myfs2 /mnt/myfs2
 
 generic/568       - output mismatch (see /home/xfstests-dev/results//generic/568.out.bad)
     --- tests/generic/568.out 2023-06-05 17:31:17.248857480 +0800
     +++ /home/xfstests-dev/results//generic/568.out.bad 2023-06-05 17:33:10.348857480 +0800
     @@ -1,4 +1,4 @@
      QA output created by 568
      wrote 2/2 bytes at offset block_size - 1
      XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
     -OK: File did not grow.
     +ERROR: File grew from 8192 B to 69632 B when writing to the fallocated range.
     ...
     (Run 'diff -u /home/xfstests-dev/tests/generic/568.out /home/xfstests-dev/results//generic/568.out.bad'  to see the entire diff)
 Ran: generic/568
 Failures: generic/568
 Failed 1 of 1 tests

My host and guest pagesize is 64k:
# getconf PAGESIZE
65536

I'm not sure if this is a product cache issue or a script issue.
I use --cache=never|always|none|auto both hit this issue

Best regards 
Zhenyu Zhang