On Sat, Feb 27, 2016 at 10:06:06AM -0800, Liu Bo wrote:
> Can you grep this message since btrfs dev scan has a "printf("Scanning for Btrfs filesystems\n");"?
> And if a scan failed somehow, it may print an error after this message
> and we then know what was happening..
I'm not seeing anything in my console boot log outside of this posted in
my previous message:
Fri Feb 26 14:55:17 2016: raid0d1 (started)...raid0d2 (starting)...
Fri Feb 26 14:55:18 2016: raid0d2 (started)...done.
> > I'm looking at my boot:
> > [ 112.063677] BTRFS: device label btrfs_space devid 1 transid 776782 /dev/mapper/raid0d1
> > [ 112.090192] BTRFS info (device dm-6): disk space caching is enabled
> > [ 112.111740] BTRFS: failed to read the system array on dm-6
> > [ 112.160047] BTRFS: open_ctree failed
> > [ 112.269710] BTRFS info (device dm-6): disk space caching is enabled
> > [ 112.291430] BTRFS: failed to read the system array on dm-6
> > [ 112.320104] BTRFS: open_ctree failed
> >
> > So dm-6 is: raid0d1 -> ../dm-6
btrfs dev scan didn't output any messages from what I can tell, outside
of the dmesg stuff here.
The total messages around that time:
[ 110.182362] bcache: bch_journal_replay() journal replay done, 92 keys in 6 entries, seq 8855
[ 110.208992] bcache: register_cache() registered cache device dm-4
[ 110.236345] bcache: register_bdev() registered backing device dm-1
[ 110.316129] bcache: bch_cached_dev_attach() Caching dm-1 as bcache1 on set 0226553a-37cf-41d5-b3ce-8b1e944543a8
[ 110.348350] bcache: register_bcache() error opening /dev/md5: device already registered
[ 110.445200] Adding 15616764k swap on /dev/mapper/eswap1. Priority:-1 extents:1 across:15616764k FS
[ 111.585812] EXT4-fs (md11): mounted filesystem with ordered data mode. Opts: (null)
[ 112.063677] BTRFS: device label btrfs_space devid 1 transid 776782 /dev/mapper/raid0d1
[ 112.090192] BTRFS info (device dm-6): disk space caching is enabled
[ 112.111740] BTRFS: failed to read the system array on dm-6
[ 112.160047] BTRFS: open_ctree failed
[ 112.269710] BTRFS info (device dm-6): disk space caching is enabled
[ 112.291430] BTRFS: failed to read the system array on dm-6
[ 112.320104] BTRFS: open_ctree failed
[ 112.332567] BTRFS: device label dshelf1 devid 1 transid 25903 /dev/bcache1
[ 112.333076] BTRFS info (device bcache1): disk space caching is enabled
[ 112.333077] BTRFS: has skinny extents
[ 115.185582] BTRFS: detected SSD devices, enabling SSD mode
[ 115.216381] BTRFS: device label dshelf2 devid 1 transid 444834 /dev/mapper/dshelf2
[ 115.241607] BTRFS info (device dm-2): disk space caching is enabled
[ 115.591923] BTRFS info (device dm-2): bdev /dev/mapper/dshelf2 errs: wr 0, rd 0, flush 0, corrupt 65, gen 0
Marc
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