Am 01.12.2020 um 16:34 schrieb Ian Lepore:: : : : >> You can define these in /boot/loader.conf: >> #kern.cam.boot_delay="10000" # Delay (in ms) of root mount for CAM >> bus >> #kern.cam.scsi_delay="2000" # Delay (in ms) before probing SCSI >> >> Maybe that helps. >> >> Ronald. >> > Those settings control waiting before mounting root. Harry's problem > is that root is mounted quickly, before other drives are ready for zfs. > > The zpool script waits for 'disks'. It would be nice if the cam > subsystem had something like a sysctl it set to indicate when initial > probing for disks was done, then there could be an rc.d/camprobe script > with 'PROVIDE: disks' which waits for the probing to complete. > > -- Ian Until something described above is available, or anybody is aware of any other trick, here's a tested workaround: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=251610 It turned out that also swapon and dumpon suffer from early root_hold_wait() release. For dumpon, cam(4) doesn't even start probing. Luckily all target:LUNs are visible at that earliest stage in rc.d/dumpon. So that's the point where I check if any real target is in state unattached (()) or probing ((aprobe)). I don't know details of the involved vfs.root_mount_hold sysctl, but assume this is dead end currently... Best regards, -harryReceived on Sat Dec 05 2020 - 16:46:35 UTC
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