Date: Sat, 19 Mar 2016 20:13:20 -0700 From: Paul Vixie <paul@redbarn.org> To: "Russell L. Carter" <rcarter@pinyon.org> Cc: freebsd-virtualization@freebsd.org Subject: Re: UFS vs. ZFS inside bhyve hosted on ZFS Message-ID: <56EE1550.4060403@redbarn.org> In-Reply-To: <56EE1468.5050503@pinyon.org> References: <56ECAFEB.8060305@pinyon.org> <56EE1468.5050503@pinyon.org>
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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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