[hi-press] mode=1 eof=1, 1024 reads, preclose=0
[*] opened /dev/vbd0 fd=3; nreads=1024 mode=1
[1] DIOCRECLUSTER ok (sv_kern=4 sv_us=5)
[2] wrote 1024 BLK_READ|CREATE messages
[3] closing sv_us -> reader EOF -> teardown race
[4] waiting 4s for teardown to complete...