Bug#659762: lvm2: LVM commands freeze after snapshot delete fails

Paul LeoNerd Evans leonerd at leonerd.org.uk
Sun Oct 7 11:33:31 UTC 2012


On Tue, Feb 14, 2012 at 06:20:57PM +0000, Paul LeoNerd Evans wrote:
> On Mon, Feb 13, 2012 at 05:40:34PM +0000, Alasdair G Kergon wrote:
> > dmsetup info -c 
> > dmsetup table
> > dmsetup status
> > 
> > will show the current device-mapper state

It appears to have happened again:

root at cel:~
# lvremove --force vg_cel/backups-20120117
  /dev/vg_cel/backups-20120117: read failed after 0 of 4096 at 161061208064: Input/output error
  /dev/vg_cel/backups-20120117: read failed after 0 of 4096 at 161061265408: Input/output error
  /dev/vg_cel/backups-20120117: read failed after 0 of 4096 at 0: Input/output error
  /dev/vg_cel/backups-20120117: read failed after 0 of 4096 at 4096: Input/output error
  Unable to deactivate open vg_cel-backups--20120117-cow (254:31)
  Failed to resume backups-20120117.
libdevmapper exiting with 3 device(s) still suspended.

root at cel:~
# lvs

[at this point the process is hard dead, no SIGTERM etc.. can wake it]

[on another terminal...]

root at cel:~
# ps -lp 26009
F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
4 D     0 26009 25789  0  80   0 -  6384 ?      pts/9    00:00:00 lvs

root at cel:~
# kill -9 26009

root at cel:~
# ps -lp 26009
F S   UID   PID  PPID  C PRI  NI ADDR SZ WCHAN  TTY          TIME CMD
4 D     0 26009 25789  0  80   0 -  6384 -      pts/9    00:00:00 lvs



> > dmsetup info -c 
> > dmsetup table
> > dmsetup status

Fortunately even in this state these three commands still work OK. Find
attached current outputs from them.

-- 
Paul "LeoNerd" Evans

leonerd at leonerd.org.uk
ICQ# 4135350       |  Registered Linux# 179460
http://www.leonerd.org.uk/
-------------- next part --------------
Name                         Maj Min Stat Open Targ Event  UUID                                                                     
vg_cel-swap_b                254   4 L--w    2    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HI16iR35iOEcTzvQkP5FiB3gEM6j7xnFz     
vg_cel-usr32                 254   5 L--w    0    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H1Z1LYecBeVkgyNiDO9NWwav7Mlz3yaPZ     
vg_cel-usr64                 254  37 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HA0GN0FOMeOQcnoSSyfqQTP1pO3l0tTnp     
vg_cel-backups--20120219-cow 254  33 L-sw    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HOk3zIGteF4ZW8RMx6gK278OeQhx4XxVK-cow 
vg_cel-home_mlog             254  49 L--w    0    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hxv6VYfC1GdWVa1iY27oJbrIlNJL7OkM5     
vg_cel-backups_mlog          254  24 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H5c1VA0oGWdEkXfJ1YGEzbT3dQQN4IxM4     
vg_cel-swap_a                254   3 L--w    2    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HS56oauHoAv4bKEvbNYDY19g3ggwmZURp     
vg_cel-home_mimage_3         254  20 L--w    1    2      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HLYoMacTflKmk0K651ABTvfZoeA7MZQ0c     
vg_cel-var64_mimage_1        254  42 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HqoDJcke6dwNryJtgQ3Qx5O3BiPrN3I5f     
vg_cel-backups-real          254  27 L--w    2    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H6rPj6EdEYtrNDpD5PJAT0Rcda62AfMKM-real
vg_cel-home_mimage_2         254  19 L--w    1    2      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H2uhR9DbUE2KndNqe9VUxfVnODnKHwDB2     
vg_cel-var64_mimage_0        254  41 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hl3MBXMQsrY28guo9JFwIaRgMqe25jHTL     
vg_cel-backups_mimage_1      254  26 L--w    1    2      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HPWt0LqTzySg5Fxl4xULR4XY4KoR1yqGb     
vg_cel-root32_mimage_3       254  11 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HULW60XnmaFAf3M119FLhnfsplFiqHxSl     
vg_cel-backups_mimage_0      254  25 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H0l57MXC4SeQMiDyWRoqRLOoQiUDIN0PY     
vg_cel-root32_mimage_2       254  10 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HyRF0QSO3X1RhgF4tcELhwKtXrrPxq08a     
vg_cel-var32                 254  18 L--w    0    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HEbzCGZhM0COhWRT4ouh7NHm3Jlk2nfH1     
vg_cel-var64                 254  43 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H5ykOO1tSch01sjuvKUA00ztOVjRxmSfY     
vg_cel-backups--20120117-cow 254  31 L--w    0    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hhaj2TQMEr2opc41ZmmfyKvbptO2hm2oI-cow 
vg_cel-var_mlog_mimage_1     254  14 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HO0jSYUkILFzJOZE0t94wHUha3xxRpDPQ     
vg_cel-usr64_mlog_mimage_1   254  51 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HI3mQKNiPg2xc5g66Yk85kkEqYiFkpopJ     
vg_cel-var64_mlog_mimage_1   254  39 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H0OemESnDTo95rCmeJYI0dBhYqXHHayfF     
vg_cel-var_mlog_mimage_0     254  13 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HddToiFoW4yVX1f64FIk8fJw23BETCbaI     
vg_cel-usr64_mlog_mimage_0   254  50 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HvNf7hEo1zdi3QEreZuViYu6Whva4Ad3r     
vg_cel-var64_mlog_mimage_0   254  38 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HhsqXb6OOSOqtxUFfSfMJoL0hK6BIzC2C     
vg_cel-var32_mimage_3        254  17 L--w    1    2      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HJ5WKRVhn9xXOoXQTouET2hi0sGgjo08m     
vg_cel-usr64_mimage_1        254  36 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HsgeQlYNf4qSfVYNpm6mCByr1ccriY3qe     
vg_cel-var32_mimage_2        254  16 L--w    1    2      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HBh8rtUwqitorKB1r031fLGGcPzAy8xnR     
vg_cel-usr64_mlog            254  52 L--w    0    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HsMPOoAic0ixk8Q0LQo7SaM2PuzDIpIyN     
vg_cel-usr64_mimage_0        254  35 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H72wu1QHGObzj5SVb24LZibPFHTZ5xyA9     
vg_cel-backups--20120219     254  34 L-sw    0    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HOk3zIGteF4ZW8RMx6gK278OeQhx4XxVK     
vg_cel-media                 254   6 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HLMy9w5r2H8G4jT2H3sc7oe4N1fhH80FC     
vg_cel-root_mlog_mimage_1    254   8 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HI70eQlTIE3hKshsH7Vfe3dHXMNTxMmWS     
vg_cel-backups--20120117     254  32 L--w    0    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hhaj2TQMEr2opc41ZmmfyKvbptO2hm2oI     
vg_cel-var32_mlog            254  15 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hvoa8iNQ8jr8CGdV962B48QM33KshJpeq     
vg_cel-backups               254  28 L-sw    2    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H6rPj6EdEYtrNDpD5PJAT0Rcda62AfMKM     
vg_cel-home                  254  21 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HwKl20hMflw54FyWiW7Anlp2VT3PbVteo     
vg_cel-root32_mlog           254   9 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HWm1CNVJlMDB2qfcAyRvoMotnhxp0LMSR     
vg_cel-root_mlog_mimage_0    254   7 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HnaEO0f0whTij2M7q0nd8MXrSF8LKCMd5     
vg_cel-home_mlog_mimage_1    254  48 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HYnGdWrij3wpKRItU4Ukgs6Mja21tImpz     
vg_cel-backups_mlog_mimage_1 254  23 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HjPNl7Hkpj1U9VKCRb8OezEwFLRG6nunw     
vg_cel-root64_mlog_mimage_1  254  45 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HIgaoC3UUg1PSVu9vl5mYc5DjHsWEFHcj     
vg_cel-root64_mimage_1       254   1 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H5y6pEH2Ldq7enrrfhpMsWd72WEgXakhe     
vg_cel-home_mlog_mimage_0    254  47 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HULVJ0aZ4XxUXlKGi8okKeTla1zJD0fhC     
vg_cel-backups_mlog_mimage_0 254  22 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HjkMgpZLsv8INcb1NnAkpkKJUJMcqSsa2     
vg_cel-var64_mlog            254  40 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3H95o1GqVF1y1Ldp6h0uf7tz6n6v82bGdT     
vg_cel-root32                254  12 L--w    0    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HJrdE8A8CBsQRgdlrxDH3u9CUvbXWNtnU     
vg_cel-root64_mlog           254  46 L--w    0    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HjEZ9e7qgZXyvkCqupQ1MC5Iu4h5kWNV5     
vg_cel-root64_mlog_mimage_0  254  44 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HTgAWhPyLv9yxG6hhhFKeURdefLeS4UnJ     
vg_cel-root64                254   2 L--w    1    1      1 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3Hjcstwu6f81QcE8dIl3eSzoVeQXRRjU8D     
vg_cel-root64_mimage_0       254   0 L--w    1    1      0 LVM-85CFNaM1i2Op58cnR160cqLbFQ5pOb3HYXz0LoCmeSRxrL7IW9z2feppuUesKEpt     
-------------- next part --------------
vg_cel-swap_b: 0 1048576 linear 8:18 328204672
vg_cel-usr32: 0 6291456 striped 2 128 8:2 384 8:18 384
vg_cel-usr64: 0 9764864 mirror core 1 1024 2 254:35 0 254:36 0 1 handle_errors
vg_cel-backups--20120219-cow: 0 41943040 linear 8:18 1113596288
vg_cel-home_mlog: 0 8192 mirror core 1 1024 2 254:47 0 254:48 0 1 handle_errors
vg_cel-backups_mlog: 0 8192 mirror core 1 1024 2 254:22 0 254:23 0 1 handle_errors
vg_cel-swap_a: 0 1048576 linear 8:2 328221056
vg_cel-home_mimage_3: 0 146800640 linear 8:18 482345344
vg_cel-home_mimage_3: 146800640 167772160 linear 8:2 335585664
vg_cel-var64_mimage_1: 0 7806976 linear 8:18 1396711808
vg_cel-backups-real: 0 314572800 mirror disk 2 254:24 1024 2 254:25 0 254:26 0 1 handle_errors
vg_cel-home_mimage_2: 0 146800640 linear 8:18 335544704
vg_cel-home_mimage_2: 146800640 167772160 linear 8:18 629154176
vg_cel-var64_mimage_0: 0 7806976 linear 8:18 310411648
vg_cel-backups_mimage_1: 0 209715200 linear 8:2 503357824
vg_cel-backups_mimage_1: 209715200 104857600 linear 8:2 713081216
vg_cel-root32_mimage_3: 0 2097152 linear 8:2 329269632
vg_cel-backups_mimage_0: 0 314572800 linear 8:18 796926336
vg_cel-root32_mimage_2: 0 2097152 linear 8:18 329253248
vg_cel-var32: 0 6291456 mirror disk 2 254:15 1024 2 254:16 0 254:17 0 1 handle_errors
vg_cel-var64: 0 7806976 mirror disk 2 254:40 1024 2 254:41 0 254:42 0 1 handle_errors
vg_cel-backups--20120117-cow: 0 41943040 linear 8:18 1197482368
vg_cel-var_mlog_mimage_1: 0 8192 linear 8:2 328204672
vg_cel-usr64_mlog_mimage_1: 0 8192 linear 8:2 823935360
vg_cel-var64_mlog_mimage_1: 0 8192 linear 8:18 318226816
vg_cel-var_mlog_mimage_0: 0 8192 linear 8:2 335569280
vg_cel-usr64_mlog_mimage_0: 0 8192 linear 8:18 318235008
vg_cel-var64_mlog_mimage_0: 0 8192 linear 8:18 1291862400
vg_cel-var32_mimage_3: 0 4194304 linear 8:2 331374976
vg_cel-var32_mimage_3: 4194304 2097152 linear 8:2 817938816
vg_cel-usr64_mimage_1: 0 9764864 linear 8:2 296755584
vg_cel-var32_mimage_2: 0 4194304 linear 8:18 331350400
vg_cel-var32_mimage_2: 4194304 2097152 linear 8:18 1111499136
vg_cel-usr64_mlog: 0 8192 mirror core 1 1024 2 254:50 0 254:51 0 1 handle_errors
vg_cel-usr64_mimage_0: 0 9764864 linear 8:18 300646784
vg_cel-backups--20120219: 0 314572800 snapshot 254:27 254:33 P 8
vg_cel-media: 0 587202560 striped 2 128 8:2 3146112 8:18 3146112
vg_cel-root_mlog_mimage_1: 0 8192 linear 8:2 328212864
vg_cel-backups--20120117: 0 41943040 linear 8:18 1197482368
vg_cel-var32_mlog: 0 8192 mirror core 1 1024 2 254:13 0 254:14 0 1 handle_errors
vg_cel-backups: 0 314572800 snapshot-origin 254:27
vg_cel-home: 0 314572800 mirror core 1 1024 2 254:19 0 254:20 0 1 handle_errors
vg_cel-root32_mlog: 0 8192 mirror core 1 1024 2 254:7 0 254:8 0 1 handle_errors
vg_cel-root_mlog_mimage_0: 0 8192 linear 8:2 331366784
vg_cel-home_mlog_mimage_1: 0 8192 linear 8:18 629145984
vg_cel-backups_mlog_mimage_1: 0 8192 linear 8:2 296747392
vg_cel-root64_mlog_mimage_1: 0 8192 linear 8:18 318218624
vg_cel-root64_mimage_1: 0 3899392 linear 8:2 820035968
vg_cel-home_mlog_mimage_0: 0 8192 linear 8:2 335577472
vg_cel-backups_mlog_mimage_0: 0 8192 linear 8:2 713073024
vg_cel-var64_mlog: 0 8192 mirror core 1 1024 2 254:38 0 254:39 0 1 handle_errors
vg_cel-root32: 0 2097152 mirror disk 2 254:9 1024 2 254:10 0 254:11 0 1 handle_errors
vg_cel-root64_mlog: 0 8192 mirror core 1 1024 2 254:44 0 254:45 0 1 handle_errors
vg_cel-root64_mlog_mimage_0: 0 8192 linear 8:18 1291854208
vg_cel-root64: 0 3899392 mirror core 1 1024 2 254:0 0 254:1 0 1 handle_errors
vg_cel-root64_mimage_0: 0 3899392 linear 8:18 296747392
-------------- next part --------------
vg_cel-swap_b: 0 1048576 linear 
vg_cel-usr32: 0 6291456 striped 2 8:2 8:18 1 AA
vg_cel-usr64: 0 9764864 mirror 2 254:35 254:36 9536/9536 1 AA 1 core
vg_cel-backups--20120219-cow: 0 41943040 linear 
vg_cel-home_mlog: 0 8192 mirror 2 254:47 254:48 8/8 1 AA 1 core
vg_cel-backups_mlog: 0 8192 mirror 2 254:22 254:23 8/8 1 AA 1 core
vg_cel-swap_a: 0 1048576 linear 
vg_cel-home_mimage_3: 0 146800640 linear 
vg_cel-home_mimage_3: 146800640 167772160 linear 
vg_cel-var64_mimage_1: 0 7806976 linear 
vg_cel-backups-real: 0 314572800 mirror 2 254:25 254:26 307200/307200 1 AA 3 disk 254:24 A
vg_cel-home_mimage_2: 0 146800640 linear 
vg_cel-home_mimage_2: 146800640 167772160 linear 
vg_cel-var64_mimage_0: 0 7806976 linear 
vg_cel-backups_mimage_1: 0 209715200 linear 
vg_cel-backups_mimage_1: 209715200 104857600 linear 
vg_cel-root32_mimage_3: 0 2097152 linear 
vg_cel-backups_mimage_0: 0 314572800 linear 
vg_cel-root32_mimage_2: 0 2097152 linear 
vg_cel-var32: 0 6291456 mirror 2 254:16 254:17 6144/6144 1 AA 3 disk 254:15 A
vg_cel-var64: 0 7806976 mirror 2 254:41 254:42 7624/7624 1 AA 3 disk 254:40 A
vg_cel-backups--20120117-cow: 0 41943040 linear 
vg_cel-var_mlog_mimage_1: 0 8192 linear 
vg_cel-usr64_mlog_mimage_1: 0 8192 linear 
vg_cel-var64_mlog_mimage_1: 0 8192 linear 
vg_cel-var_mlog_mimage_0: 0 8192 linear 
vg_cel-usr64_mlog_mimage_0: 0 8192 linear 
vg_cel-var64_mlog_mimage_0: 0 8192 linear 
vg_cel-var32_mimage_3: 0 4194304 linear 
vg_cel-var32_mimage_3: 4194304 2097152 linear 
vg_cel-usr64_mimage_1: 0 9764864 linear 
vg_cel-var32_mimage_2: 0 4194304 linear 
vg_cel-var32_mimage_2: 4194304 2097152 linear 
vg_cel-usr64_mlog: 0 8192 mirror 2 254:50 254:51 8/8 1 AA 1 core
vg_cel-usr64_mimage_0: 0 9764864 linear 
vg_cel-backups--20120219: 0 314572800 snapshot 36017496/41943040 140160
vg_cel-media: 0 587202560 striped 2 8:2 8:18 1 AA
vg_cel-root_mlog_mimage_1: 0 8192 linear 
vg_cel-backups--20120117: 0 41943040 linear 
vg_cel-var32_mlog: 0 8192 mirror 2 254:13 254:14 8/8 1 AA 1 core
vg_cel-backups: 0 314572800 snapshot-origin 
vg_cel-home: 0 314572800 mirror 2 254:19 254:20 307200/307200 1 AA 1 core
vg_cel-root32_mlog: 0 8192 mirror 2 254:7 254:8 8/8 1 AA 1 core
vg_cel-root_mlog_mimage_0: 0 8192 linear 
vg_cel-home_mlog_mimage_1: 0 8192 linear 
vg_cel-backups_mlog_mimage_1: 0 8192 linear 
vg_cel-root64_mlog_mimage_1: 0 8192 linear 
vg_cel-root64_mimage_1: 0 3899392 linear 
vg_cel-home_mlog_mimage_0: 0 8192 linear 
vg_cel-backups_mlog_mimage_0: 0 8192 linear 
vg_cel-var64_mlog: 0 8192 mirror 2 254:38 254:39 8/8 1 AA 1 core
vg_cel-root32: 0 2097152 mirror 2 254:10 254:11 2048/2048 1 AA 3 disk 254:9 A
vg_cel-root64_mlog: 0 8192 mirror 2 254:44 254:45 8/8 1 AA 1 core
vg_cel-root64_mlog_mimage_0: 0 8192 linear 
vg_cel-root64: 0 3899392 mirror 2 254:0 254:1 3808/3808 1 AA 1 core
vg_cel-root64_mimage_0: 0 3899392 linear 
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