kern/55426: New zfs test failures

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         55426
>Category:       kern
>Synopsis:       New zfs test failures
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 27 16:15:00 +0000 2020
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2020.06.24.16.29.34
>Organization:
>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

About 60 zfs test cases are failing on real amd64 hardware since these commits:

  2020.06.24.16.16.01 jdolecek src/external/cddl/osnet/dist/uts/common/fs/zfs/vdev_queue.c 1.2
  2020.06.24.16.23.16 jdolecek src/external/cddl/osnet/dist/uts/common/fs/zfs/dsl_scan.c 1.2
  2020.06.24.16.29.34 jdolecek src/external/cddl/osnet/dist/uts/common/fs/zfs/dsl_scan.c 1.3

Logs:

  http://www.gson.org/netbsd/bugs/build/amd64-baremetal/commits-2020.06.html#2020.06.24.16.29.34

>How-To-Repeat:

>Fix: