Russell L. Carter wrote:
... I have two bhyve VMs configured
identically, both running r297047, each configured with 15G of RAM and
3 cpus, verified by examining 'sysctl hw' from within the running
guest. One has the default ZFS install, the other UFS. However,

# cd /usr/src && make buildworld -j <anything>

after 15 minutes or so freezes the -current-UFS guest with the
following console output:

root@vm1:~ # ahcich0: Timeout on slot 29 port 0
ahcich0: is 00000008 cs 00000000 ss 00000000 rs bfffffff tfd 50 serr
00000000 cmd 0001dd17
(ada0:ahcich0:0:0:0): WRITE_FPDMA_QUEUED. ACB: 61 40 70 dc 3a 40 00 00
00 00 00 00
(ada0:ahcich0:0:0:0): CAM status: Command timeout
(ada0:ahcich0:0:0:0): Retrying command

two questions:

why ada rather than vtblk?

is the host's backing store made with 'zfs create -V', or is it 'truncate'?

P Vixie
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