[Bug 240221] sys.cddl.zfs.tests.atime.atime_test.atime_001_pos panics kernel

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240221

            Bug ID: 240221
           Summary: sys.cddl.zfs.tests.atime.atime_test.atime_001_pos
                    panics kernel
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: tests
          Assignee: testing at freebsd.org
          Reporter: lwhsu at FreeBSD.org

Starting from this build:
https://ci.freebsd.org/job/FreeBSD-head-amd64-test_zfs/3479/

The revisions included in this build are r351584 (looks most likely), r351585,
r351587

Panic message:

tests/atime/atime_test:atime_001_pos  ->  VNASSERT failed
0xfffff800802ac1e0: tag zfs, type VDIR
    usecount 0, writecount 0, refcount 1 mountedhere 0
    flags (VI_ACTIVE)
 VI_LOCKed    lock type zfs: UNLOCKED
        name = testsnap1211
        parent_id = 2
        id = 85
panic: No vop_need_inactive(0xfffff800802ac1e0, 0xfffffe004fca14d0)
cpuid = 1
time = 1567118769
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe004fca13f0
vpanic() at vpanic+0x19d/frame 0xfffffe004fca1440
panic() at panic+0x43/frame 0xfffffe004fca14a0
VOP_NEED_INACTIVE_APV() at VOP_NEED_INACTIVE_APV+0xf4/frame 0xfffffe004fca14c0
vputx() at vputx+0x1b0/frame 0xfffffe004fca1520
vfs_mount_destroy() at vfs_mount_destroy+0x14f/frame 0xfffffe004fca1550
dounmount() at dounmount+0x7eb/frame 0xfffffe004fca15b0
zfs_unmount_snap() at zfs_unmount_snap+0xbb/frame 0xfffffe004fca15d0
zfs_ioc_destroy_snaps() at zfs_ioc_destroy_snaps+0xda/frame 0xfffffe004fca1620
zfsdev_ioctl() at zfsdev_ioctl+0x783/frame 0xfffffe004fca16b0
devfs_ioctl() at devfs_ioctl+0xca/frame 0xfffffe004fca1700
VOP_IOCTL_APV() at VOP_IOCTL_APV+0x63/frame 0xfffffe004fca1720
vn_ioctl() at vn_ioctl+0x13d/frame 0xfffffe004fca1830
devfs_ioctl_f() at devfs_ioctl_f+0x1f/frame 0xfffffe004fca1850
kern_ioctl() at kern_ioctl+0x295/frame 0xfffffe004fca18b0
sys_ioctl() at sys_ioctl+0x15d/frame 0xfffffe004fca1980
amd64_syscall() at amd64_syscall+0x2b9/frame 0xfffffe004fca1ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe004fca1ab0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004b62ea, rsp =
0x7fffffffafa8, rbp = 0x7fffffffb020 ---


Full log is available at:
https://ci.freebsd.org/job/FreeBSD-head-amd64-test_zfs/3479/consoleFull

To reproduce:

```
mdconfig -t malloc -s 128m

cat <<EOF >> /usr/local/etc/kyua/kyua.conf
test_suites.FreeBSD.disks = '/dev/md0'
EOF

cd /usr/tests/sys/cddl/zfs/tests/atime

kyua debug atime_test:atime_001_pos
```

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