https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211381
--- Comment #7 from ***@hotmail.com ---
Yes it's on a geli
dtrace -n 'sdt:::l2arc-iodone /args[0]->io_error != 0/ { printf("io_error = %d
io_offset = %d io_size = %d", args[0]->io_error, args[0]->io_offset,
args[0]->io_size); }'
dtrace: description 'sdt:::l2arc-iodone ' matched 1 probe
dtrace: buffer size lowered to 512k
CPU ID FUNCTION:NAME
2 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
1 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
0 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
1 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
0 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
1 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
0 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
1 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
2 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
0 57400 none:l2arc-iodone io_error = 22 io_offset = 0 io_size
= 0
# diskinfo -v /dev/nvd0p3.eli
/dev/nvd0p3.eli
4096 # sectorsize
483117756416 # mediasize in bytes (450G)
117948671 # mediasize in sectors
0 # stripesize
0 # stripeoffset
7341 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
S2GMNCAGA01093W # Disk ident.
Oh 4k, this device is pretty deadset on being 512
# diskinfo -v /dev/nvd0p3
/dev/nvd0p3
512 # sectorsize
483117760512 # mediasize in bytes (450G)
943589376 # mediasize in sectors
512 # stripesize
0 # stripeoffset
58735 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
S2GMNCAGA01093W # Disk ident.
I dropped the cache and the dtrace errors stopped so that's the source alright.
I detached the geli, attached the geli and added cache and they started again.
Dropped the cache, detached geli, added nvd0p3 as cache without geli and no
errors and the cache started building.
capacity operations bandwidth
pool alloc free read write read write
cache - - - - - -
nvd0p3 514M 449G 0 0 0 0
I recreated geli with 512 Sectorsize, reattached and so far no errors, but it
worked the first time for a while too. Cache is building, no dtrace errors
yet, i'll watch.
# diskinfo -v /dev/nvd0p3.eli
/dev/nvd0p3.eli
512 # sectorsize
483117760000 # mediasize in bytes (450G)
943589375 # mediasize in sectors
0 # stripesize
0 # stripeoffset
58735 # Cylinders according to firmware.
255 # Heads according to firmware.
63 # Sectors according to firmware.
S2GMNCAGA01093W # Disk ident.
re r300039, yeah looks useful
------------------------------------------------------------------------
r300039 | avg | 2016-05-17 18:43:50 +1000 (Tue, 17 May 2016) | 5 lines
MFC r297848: l2arc: make sure that all writes honor ashift of a cache device
Note: no MFC stable/9 because it has become quite out of date with head,
so the merge would be quite labourious and, thus, risky.
------------------------------------------------------------------------
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