On Tuesday 27 October 2015 12:04:46 Stefan G. Weichinger wrote: > Am 26.10.2015 um 15:47 schrieb Peter Humphrey: > > I keep the portage tree under /usr-bits. > > > > # dmesg | grep sdb3 > > [ 1.753508] sdb: sdb1 sdb2 sdb3 sdb4 < sdb5 sdb6 sdb7 sdb8 sdb9 > > > [ 4.833460] EXT4-fs (sdb3): mounted filesystem with ordered data mode. > > Opts: (null) > > [ 107.205918] EXT4-fs (sdb3): mounted filesystem with ordered data mode. > > Opts: (null) > > > > You can see the successful mount at 4.8 s; the entry at 107 s is me > > mounting it again manually. > > > > I've rewritten the partition label, and I've run a smartctl test which > > reported no faults found. I've also just reduced the speed of the chipset, > > which has three settings: good performance, better performance and turbo. > > It adopts the turbo setting by default and I've now set it to "better". > > It's too early yet to see if that will help. > > interesting ... > > What init-system? openrc or systemd?
Openrc. > No trace of the actual unmount in any logs? Not that I can find, no. > Maybe also look/grep for the LABEL of the fs. Nope, nor that. > Maybe test if using the device-name itself ( /dev/sdb3 ) or the UUID in > fstab changes the behavior. I'll try reverting to /dev/sdb3 and see if that helps. > I use UUIDs here without problems (with systemd). The only thing I use UUIDs for here is in mdadm.conf to get the LVs started reliably for the main system*. Those live in partitions /dev/sd[ab][5789]. Three more things: I've had the cover off and checked the seating of the SATA cables; while the lid was off I watched the MB LEDs during startup, which seemed okay; and today the kernel was upgraded from 4.0.5 to 4.0.9; that may help too. (Hm ... too many changes at once.) * Now that I think of it, one of the LVs came up as inactive the other day, and nothing I could think of would activate it (consulting man mdadm of course). In the end I had to reboot. This machine has shown some bizarre behaviour over the last few months. Something is definitely wrong; I just can't figure out what it is. -- Rgds Peter
