latest 8.0-BETA2 lost my zfs
Thomas Backman
serenity at exscape.org
Tue Aug 18 16:47:54 UTC 2009
On Aug 18, 2009, at 16:42, Danny Braniss wrote:
>> it seems that the latest changes to zfs prevents zpool to see/find
>> the pool in /dev/ad0p4 (BTW, the pool was created under 8.0)
>>
>> # gpart show
>> => 34 1953525101 ad0 GPT (932G)
>> 34 128 1 freebsd-boot (64K)
>> 162 4194304 2 freebsd-ufs (2.0G)
>> 4194466 8388608 3 freebsd-swap (4.0G)
>> 12583074 1940942061 4 freebsd-zfs (926G)
>>
>> # zpool list
>> no pools available
>> # zpool import -a
>> #
>>
>> under 7.2, the pool is still there:
>>
>> pundit-2> zfs list
>> NAME USED AVAIL REFER MOUNTPOINT
>> z 5.27G 900G 18K /z
>> z/home 5.21G 900G 5.21G /home
>> z/var 59.7M 900G 59.7M /var
>> pundit-2> zpool list
>> NAME SIZE USED AVAIL CAP HEALTH ALTROOT
>> z 920G 5.27G 915G 0% ONLINE -
>
> running 'truss zpool import -a' reveals the problem:
>
> open("ad0p4",O_RDONLY,00) ERR#2 'No such file
> or directory'
> open("/dev/ad0p4",O_RDONLY,05003312752) = 5 (0x5)
> ioctl(5,DIOCGSECTORSIZE,0xbfbfa1f4) = 0 (0x0)
> fstat(5,{ mode=crw-r----- ,inode=75,size=0,blksize=4096 }) = 0 (0x0)
> pread(0x5,0x2834a000,0x40000,0x0,0x0,0x805ab64) = 262144 (0x40000)
> pread(0x5,0x2834a000,0x40000,0x40000,0x0,0x1bfd8) = 262144 (0x40000)
> pread(0x5,0x2834a000,0x40000,0xfff80000,0xffffffff,0x1bfd8) ERR#5
> 'Input/output error'
> ********** offset is a bit too big :-)
> pread(0x5,0x2834a000,0x40000,0xfffc0000,0xffffffff,0x1bfd8) ERR#5
> 'Input/output error'
Glad I'm not the only one. I reported the same issue yesterday, in a
thread originally about something else zfs related (zfs send sends a
broken stream, or recv considers it broken despite it being fine; I
don't know which one it is): http://lists.freebsd.org/pipermail/freebsd-current/2009-August/010709.html
FWIW, my truss output (ggate142 is the ZFS pool device I *just*
created and then exported, and ad2s1b is my swap/dump device):
(from "truss -o outfile zpool import")
[...]
open("ad2s1b",O_RDONLY,00) ERR#2 'No such file
or directory'
open("/dev/ad2s1b",O_RDONLY,00) = 7 (0x7)
ioctl(7,DIOCGSECTORSIZE,0xffff9fc4) = 0 (0x0)
fstat(7,{ mode=crw-r----- ,inode=79,size=0,blksize=4096 }) = 0 (0x0)
pread(0x7,0x80128c000,0x40000,0x0,0x34004,0x801201340) = 262144
(0x40000)
pread(0x7,0x80128c000,0x40000,0x40000,0x1,0x801201340) = 262144
(0x40000)
pread(0x7,0x80128c000,0x40000,0xfffffffffff80000,0x1,0x801201340)
ERR#5 'Input/output error'
pread(0x7,0x80128c000,0x40000,0xfffffffffffc0000,0x1,0x801201340)
ERR#5 'Input/output error'
close(7) = 0 (0x0)
open("ggate142",O_RDONLY,00) ERR#2 'No such file
or directory'
open("/dev/ggate142",O_RDONLY,00) = 7 (0x7)
ioctl(7,DIOCGSECTORSIZE,0xffff9fc4) = 0 (0x0)
fstat(7,{ mode=crw-r----- ,inode=93,size=0,blksize=4096 }) = 0 (0x0)
pread(0x7,0x80128c000,0x40000,0x0,0x34004,0x801201340) = 262144
(0x40000)
pread(0x7,0x80128c000,0x40000,0x40000,0x1,0x801201340) = 262144
(0x40000)
pread(0x7,0x80128c000,0x40000,0xfffffffffff80000,0x1,0x801201340)
ERR#5 'Input/output error'
pread(0x7,0x80128c000,0x40000,0xfffffffffffc0000,0x1,0x801201340)
ERR#5 'Input/output error'
close(7) = 0 (0x0)
close(4) = 0 (0x0)
close(5) = 0 (0x0)
close(6) = 0 (0x0)
...
sigprocmask(...)
process exit, rval = 1
Regards,
Thomas
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