Bug 13672
| Summary: | Cannot get a snapshot from an logical volume | ||
|---|---|---|---|
| Product: | IO/Storage | Reporter: | Jean-Luc Coulon (jean.luc.coulon) |
| Component: | LVM2/DM | Assignee: | Alasdair G Kergon (agk) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | agk, rjw |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.31-rc1-git3 | Subsystem: | |
| Regression: | Yes | Bisected commit-id: | |
| Bug Depends on: | |||
| Bug Blocks: | 13615 | ||
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Description
Jean-Luc Coulon
2009-06-29 13:11:08 UTC
Check mesg/kernel log file for slightly more information and post it here. (There's one known regression in snapshots - failing to recognise the snapshot type N or P - it might be related. There's a patch for that in -mm.) I tried to boot 2.6.31-git4. It failed to moount /usr (which is also on xfs over lvm). Here are some relevant parts of the boot log. Linux version 2.6.31-rc1-git4-k8-1 (jean-luc@tangerine) (gcc version 4.3.3 (Debian 4.3.3-13) ) #1 SMP PREEMPT Mon Jun 29 13:29:10 CEST 2009 Command line: BOOT_IMAGE=/vmlinuz-2.6.31-rc1-git4-k8-1 root=/dev/mapper/vg0-root_lv ro video=radeonfb:1024x768@100 quiet KERNEL supported cpus: Intel GenuineIntel AMD AuthenticAMD Centaur CentaurHauls .... .... md: raid1 personality registered for level 1 md: md0 stopped. md: md1 stopped. md: md2 stopped. md: bind<sdc3> md: bind<sdb3> raid1: raid set md2 active with 2 out of 2 mirrors md2: unknown partition table md: bind<sdc2> md: bind<sdb2> raid1: raid set md1 active with 2 out of 2 mirrors md1: unknown partition table md: bind<sdc1> md: bind<sdb1> raid1: raid set md0 active with 2 out of 2 mirrors mdusb 3-1: New USB device found, idVendor=0463, idProduct=ffff usb 3-1: New USB device strings: Mfr=4, Product=12, SerialNumber=0 usb 3-1: Product: ELLIPSE usb 3-1: Manufacturer: MGE usb 3-1: configuration #1 chosen from 1 choice device-mapper: table: 254:0: target device md1 is misaligned device-mapper: table: 254:0: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:1: target device md1 is misaligned device-mapper: table: 254:2: target device md1 is misaligned .... .... device-mapper: snapshot exception stores: Module for exstore type "P`<D1>o^A" not found. device-mapper: table: 254:5: snapshot: Couldn't create exception store device-mapper: ioctl: error adding target to table device-mapper: table: 254:6: target device md1 is misaligned device-mapper: table: 254:6: target device md1 is misaligned .... .... device-mapper: table: 254:7: target device md2 is misaligned device-mapper: table: 254:7: target device md2 is misaligned device-mapper: table: 254:7: target device md2 is misaligned device-mapper: table: 254:7: target device md2 is misaligned device-mapper: table: 254:8: target device dm-7 is misaligned device-mapper: table: 254:8: target device dm-7 is misaligned device-mapper: table: 254:8: target device dm-7 is misaligned device-mapper: table: 254:8: target device dm-7 is misaligned ... ... device-mapper: table: 254:9: target device dm-7 is misaligned device-mapper: table: 254:9: target device dm-7 is misaligned device-mapper: table: 254:9: target device dm-7 is misaligned device-mapper: table: 254:10: target device dm-7 is misaligned device-mapper: table: 254:10: target device dm-7 is misaligned device-mapper: table: 254:11: target device dm-7 is misaligned device-mapper: table: 254:11: target device dm-7 is misaligned device-mapper: table: 254:11: target device dm-7 is misaligned .... .... device-mapper: table: 254:16: target device dm-7 is misaligned device-mapper: table: 254:16: target device dm-7 is misaligned device-mapper: snapshot exception stores: Module for exstore type "P`<F1>t^B" not found. device-mapper: table: 254:17: snapshot: Couldn't create exception store device-mapper: ioctl: error adding target to table device-mapper: table: 254:18: target device dm-7 is misaligned device-mapper: table: 254:18: target device dm-7 is misaligned device-mapper: table: 254:18: target device dm-7 is misaligned device-mapper: table: 254:18: target device dm-7 is misaligned device-mapper: snapshot exception stores: Module for exstore type "P`<B1><AB>^B" not found. device-mapper: table: 254:5: snapshot: Couldn't create exception store device-mapper: ioctl: error adding target to table fuse init (API version 7.11) kjournald starting. Commit interval 5 seconds EXT3 FS on md0, internal journal EXT3-fs: mounted filesystem with writeback data mode. XFS: SB read failed XFS mounting filesystem dm-1 Ending clean XFS mount for filesystem: dm-1 XFS: SB read failed XFS mounting filesystem dm-8 Ending clean XFS mount for filesystem: dm-8 XFS mounting filesystem dm-13 Ending clean XFS mount for filesystem: dm-13 XFS mounting filesystem dm-11 Ending clean XFS mount for filesystem: dm-11 XFS mounting filesystem dm-12 Ending clean XFS mount for filesystem: dm-12 XFS mounting filesystem dm-10 Ending clean XFS mount for filesystem: dm-10 Then the boot process ends because /usr was not mounted. J-L bugzilla-daemon@bugzilla.kernel.org wrote: > --- Comment #2 from Jean-Luc Coulon <jean.luc.coulon@gmail.com> 2009-06-30 > 12:04:28 --- > device-mapper: snapshot exception stores: Module for exstore type "P`<D1>o^A" > not found. This is problem and there is bug in exception store type name handling which must be fixed, introduced by commit f6bd4eb73cdf2a5bf954e497972842f39cabb7e3 (I'll send patch later here). Thanks for reporting it. Milan bugzilla-daemon@bugzilla.kernel.org wrote: > device-mapper: table: 254:0: target device md1 is misaligned Fixed by upstream commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ea9df47cc92573b159ef3b4fda516c32cba9c4fd > device-mapper: snapshot exception stores: Module for exstore type "P`<D1>o^A" > not found. and this one by http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=874d2f61d31e596c36af7732dc1b3aa2dc233824 Milan |