RC=0
hammer2_mount: "vbd0s1d": no recovery needed
hammer2: enable read/write
HAMMER2: VOLDATA DUMP
HAMMER2: INITIATE SPANs
swap low/high-water marks set to 41940/62910
[df5177] timer 0xfffff8008dfaf6a0 size 216
[df5177] callback now running on cpu0's taskqueue (cb_done=0)
[df5177] re-armed from cpu1 (50ms) while cb in flight
[df5177] hrtimer_cancel() returned ret=1, cb_done=1 (Linux API requires cb_done==1 here!)
[df5177] timer freed and reallocated: victim=0xfffff8008dfaf6a0 same=1; waiting 600ms for the in-flight epilogue...
[df5177] after wait: cb_done=1; scanning victim for post-free writes
[df5177] victim[152] still 0x5A (no write)
[df5177] victim[153] still 0x5A (no write)
[df5177] changed=0 cancel_saw_cb_done=1