disabling journaling?
George Rosamond
george at ceetonetechnology.com
Tue Mar 3 01:41:29 UTC 2015
George Rosamond:
> Ian mentioned softupdates + journaling is a problem.
>
> https://marc.info/?l=freebsd-arm&m=142526289401012&w=2
>
>> IMO, there's your problem right there. People have been reporting for
>> years that softupdates + journaling = corruption. The freebsd project's
>> collective response to all those reports has been a rather silent yawn.
>> The only sane response, IMO, is to not use journaling.
>
> Should crochet be adjusted for it in lib/disk.sh?
>
> # Turn on Softupdates
> tunefs -n enable ${NEW_UFS_DEVICE}
> # Turn on SUJ with a minimally-sized journal.
> # This makes reboots tolerable if you just pull power
> # Note: A slow SDHC reads about 1MB/s, so a 30MB
> # journal can delay boot by 30s.
> tunefs -j enable -S 4194304 ${NEW_UFS_DEVICE}
> # Turn on NFSv4 ACLs
> tunefs -N enable ${NEW_UFS_DEVICE}
>
> I assume journaling should go first. Besides in build scripts, don't
> know how this would be done a system for the root partition when you
> can't go into single-user mode.
Let me qualify that. Should journaling be disabled by default on flash
media? This wouldn't necessarily apply to all Crochet builds.
g
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