problem with list

[muzyk10]

I got it working on python 2.7 :)
I've two machines (with different zfs datasests). On one of them "vm.py list" works as expected but on the other i doesn't - the output:
backup zfs-vm # ./vm.py list Traceback (most recent call last): File "./vm.py", line 931, in <module> main(sys.argv) File "./vm.py", line 928, in main do_fun(args[1:]) File "./vm.py", line 543, in cmd_list filesystems = FS.list(None if len(args) < 1 else args[0]) File "./vm.py", line 251, in list fs = filesystems[fsname] KeyError: 'rpool/DATA/kvm/mail/data'
and the strace:
read(4, "/packages@auto_daily-2016-07-03-"..., 10473) = 10473 fstat(4, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 lseek(4, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(4, "6-09-15-2132\tguid\t10462043519166"..., 11782) = 11782 fstat(4, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 lseek(4, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(4, "TOO/portage@auto_daily-2016-07-2"..., 13255) = 13255 fstat(4, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 lseek(4, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(4, "\nrpool/ROOT/gentoo@auto_daily-20"..., 14911) = 11825 read(4, "73313714281\nrpool/ROOT/gentoo@au"..., 3086) = 3086 fstat(4, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0 lseek(4, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) read(4, "rpool/ROOT/gentoo@auto_daily-201"..., 16775) = 328 read(4, "", 16447) = 0 --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=25594, si_uid=0, si_status=0, si_utime=38, si_stime=371} --- close(4) = 0 wait4(25594, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 25594 mmap(NULL, 262144, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3985615000 brk(0x790000) = 0x790000 write(2, "Traceback (most recent call last"..., 35Traceback (most recent call last): ) = 35 write(2, " File \"./vm.py\", line 931, in <"..., 40 File "./vm.py", line 931, in <module> ) = 40 open("./vm.py", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0755, st_size=32080, ...}) = 0 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f39857db000 read(4, "#!/usr/bin/env python\nfrom __fut"..., 32256) = 32080 write(2, " ", 4 ) = 4 write(2, "main(sys.argv)\n", 15main(sys.argv) ) = 15 close(4) = 0 munmap(0x7f39857db000, 32768) = 0 write(2, " File \"./vm.py\", line 928, in m"..., 36 File "./vm.py", line 928, in main ) = 36 open("./vm.py", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0755, st_size=32080, ...}) = 0 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f39857db000 read(4, "#!/usr/bin/env python\nfrom __fut"..., 32256) = 32080 write(2, " ", 4 ) = 4 write(2, "do_fun(args[1:])\n", 17do_fun(args[1:]) ) = 17 close(4) = 0 munmap(0x7f39857db000, 32768) = 0 write(2, " File \"./vm.py\", line 543, in c"..., 40 File "./vm.py", line 543, in cmd_list ) = 40 open("./vm.py", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0755, st_size=32080, ...}) = 0 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f39857db000 read(4, "#!/usr/bin/env python\nfrom __fut"..., 32256) = 32080 write(2, " ", 4 ) = 4 write(2, "filesystems = FS.list(None if le"..., 58filesystems = FS.list(None if len(args) < 1 else args[0]) ) = 58 close(4) = 0 munmap(0x7f39857db000, 32768) = 0 write(2, " File \"./vm.py\", line 251, in l"..., 36 File "./vm.py", line 251, in list ) = 36 open("./vm.py", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0755, st_size=32080, ...}) = 0 mmap(NULL, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f39857db000 read(4, "#!/usr/bin/env python\nfrom __fut"..., 32256) = 32080 write(2, " ", 4 ) = 4 write(2, "fs = filesystems[fsname]\n", 25fs = filesystems[fsname] ) = 25 close(4) = 0 munmap(0x7f39857db000, 32768) = 0 write(2, "KeyError", 8KeyError) = 8 write(2, ": ", 2: ) = 2 write(2, "'rpool/DATA/kvm/mail/data'", 26'rpool/DATA/kvm/mail/data') = 26 write(2, "\n", 1 ) = 1 rt_sigaction(SIGINT, {SIG_DFL, [], SA_RESTORER, 0x7f3985007a00}, {0x7f398531059b, [], SA_RESTORER, 0x7f3985007a00}, 8) = 0 brk(0x78e000) = 0x78e000 close(3) = 0 munmap(0x7f3985615000, 262144) = 0 close(6) = 0 exit_group(1) = ? +++ exited with 1 +++
The list of them values, listing with zfs only have proper output:
backup zfs-vm # zfs get -H -p -o name,property,value guid,createtxg rpool/DATA/kvm/mail/data rpool/DATA/kvm/mail/data guid 17624858773064996153 rpool/DATA/kvm/mail/data createtxg 2360436

What could be wrong, something with dataset name ?

[mkhon]

Can you provide the output of the following command:

zfs get -H -p -o name,property,value -t filesystem origin,mountpoint