On Mon, 20 Jun 2016 23:09:30 +0530 Ritesh Raj Sarraf <r...@debian.org> wrote: > Control: tag -1 +moreinfo > > I was thinking about this bug again, and I think the bug must be elsewhere. > > Andrew: Are you able to consistently reproduce this bug on multiple setups ? > > > The reason I think this bug may not be valid is for 2 reasons: > > 1) If the bug was valid, it should have been reproducible in my virtual setup. > > 2) More than 1, the patch being proposed should not be needed. Because even > though a partition has an UUID with string "partN-mpath-*" the parent device > is > still owning the UUID with string "mpath-*". When the device is deleted, the > event will be generated for the device itself. Which, should be able to catch > the string regex of the latter I've exampled above. This is what is happening > in > my virtual setup. > > > If 2 is correct, why has the OP seen the issue? > We need confirmation if the issue was seen consistently on multiple setups. If > so, are there other components that may be silently locking the device ? > > > > On Mon, 2016-06-20 at 14:01 +0530, Ritesh Raj Sarraf wrote: > > Surprisingly, I am not able to reproduce this bug, now, on my virtual setup. > > Here, the updation to /dev/mapper/ entries are instant as and when > > partitions > > are deleted, without the patch proposed in this bug report. > > > > So inclusion of this patch will depend on the bug reporter's results. We > > also > > need to determine the cause of the bug because it is not just reproducible > > with > > in a partitioned block device environment. > > > --
Well. It seems that I can no longer reproduce this issue. Furthermore, it seems that that the patched rule is not even triggered. The rule is on line #47 of /lib/udev/rules.d/60-kpartx. Running udevadm trigger does not show that line being called. # ls -l /dev/mapper/mpatha* lrwxrwxrwx 1 root root 7 Jun 20 15:13 /dev/mapper/mpatha -> ../dm-0 lrwxrwxrwx 1 root root 7 Jun 20 15:13 /dev/mapper/mpatha-part1 -> ../dm-8 # ls -l /dev/disk/by-id/*mpath* lrwxrwxrwx 1 root root 10 Jun 20 15:13 /dev/disk/by-id/dm-name-mpatha -> ../../dm-0 lrwxrwxrwx 1 root root 10 Jun 20 15:13 /dev/disk/by-id/dm-name-mpatha-part1 -> ../../dm-8 lrwxrwxrwx 1 root root 10 Jun 20 15:13 /dev/disk/by-id/scsi-mpatha -> ../../dm-0 lrwxrwxrwx 1 root root 10 Jun 20 15:13 /dev/disk/by-id/scsi-mpatha-part1 -> ../../dm-8 udevadm test --action remote /sys/block/dm-8 calling: test version 230 This program is for debugging only, it does not run any program specified by a RUN key. It may show incorrect results, because some values may be different, or not available at a simulation run. === trie on-disk === tool version: 230 file size: 6944075 bytes header size 80 bytes strings 1780123 bytes nodes 5163872 bytes Load module index Found container virtualization none timestamp of '/etc/systemd/network' changed timestamp of '/lib/systemd/network' changed Parsed configuration file /lib/systemd/network/99-default.link Created link configuration context. timestamp of '/etc/udev/rules.d' changed timestamp of '/lib/udev/rules.d' changed Reading rules file: /lib/udev/rules.d/50-firmware.rules Reading rules file: /lib/udev/rules.d/50-udev-default.rules Reading rules file: /lib/udev/rules.d/55-dm.rules Reading rules file: /lib/udev/rules.d/55-scsi-sg3_id.rules Reading rules file: /lib/udev/rules.d/56-lvm.rules Reading rules file: /lib/udev/rules.d/58-scsi-sg3_symlink.rules Reading rules file: /lib/udev/rules.d/60-block.rules Reading rules file: /lib/udev/rules.d/60-cdrom_id.rules Reading rules file: /lib/udev/rules.d/60-drm.rules Reading rules file: /lib/udev/rules.d/60-evdev.rules Reading rules file: /lib/udev/rules.d/60-gnupg.rules Reading rules file: /lib/udev/rules.d/60-kpartx.rules Reading rules file: /lib/udev/rules.d/60-persistent-alsa.rules Reading rules file: /lib/udev/rules.d/60-persistent-input.rules Reading rules file: /lib/udev/rules.d/60-persistent-storage-dm.rules Reading rules file: /lib/udev/rules.d/60-persistent-storage-tape.rules Reading rules file: /lib/udev/rules.d/60-persistent-storage.rules Reading rules file: /lib/udev/rules.d/60-persistent-v4l.rules Reading rules file: /lib/udev/rules.d/60-serial.rules Reading rules file: /lib/udev/rules.d/64-btrfs.rules Reading rules file: /lib/udev/rules.d/69-lvm-metad.rules Reading rules file: /lib/udev/rules.d/70-debian-uaccess.rules Reading rules file: /lib/udev/rules.d/70-mouse.rules Reading rules file: /lib/udev/rules.d/70-power-switch.rules Reading rules file: /lib/udev/rules.d/70-uaccess.rules Reading rules file: /lib/udev/rules.d/71-seat.rules Reading rules file: /lib/udev/rules.d/73-seat-late.rules Reading rules file: /lib/udev/rules.d/73-special-net-names.rules Reading rules file: /lib/udev/rules.d/73-usb-net-by-mac.rules Reading rules file: /lib/udev/rules.d/75-net-description.rules Reading rules file: /lib/udev/rules.d/75-probe_mtd.rules Reading rules file: /lib/udev/rules.d/78-sound-card.rules Reading rules file: /lib/udev/rules.d/80-debian-compat.rules Reading rules file: /lib/udev/rules.d/80-drivers.rules Reading rules file: /lib/udev/rules.d/80-ifupdown.rules Reading rules file: /lib/udev/rules.d/80-net-setup-link.rules Reading rules file: /lib/udev/rules.d/85-hdparm.rules Reading rules file: /lib/udev/rules.d/85-hwclock.rules Reading rules file: /lib/udev/rules.d/90-console-setup.rules Reading rules file: /lib/udev/rules.d/99-systemd.rules rules contain 49152 bytes tokens (4096 * 12 bytes), 14495 bytes strings 2224 strings (27633 bytes), 1511 de-duplicated (13852 bytes), 714 trie nodes used IMPORT 'dmsetup_env 254 8' /lib/udev/rules.d/60-kpartx.rules:12 starting 'dmsetup_env 254 8' 'dmsetup_env 254 8'(out) 'DM_UUID=part1-mpath-360002ac00000000000001904000028be' 'dmsetup_env 254 8'(out) 'DM_TABLE_STATE=LIVE' 'dmsetup_env 254 8'(out) 'DM_STATE=ACTIVE' 'dmsetup_env 254 8'(out) 'DM_NAME=mpatha-part1' Process 'dmsetup_env 254 8' succeeded. IMPORT 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be' /lib/udev/rules.d/60-kpartx.rules:17 starting 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be' 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be'(out) 'DM_MPATH=mpatha' 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be'(out) 'DM_PART=1' 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be'(out) 'DM_TYPE=scsi' 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be'(out) 'DM_WWN=0xpatha' Process 'kpartx_id 254 8 part1-mpath-360002ac00000000000001904000028be' succeeded. LINK 'disk/by-id/scsi-mpatha-part1' /lib/udev/rules.d/60-kpartx.rules:22 LINK 'disk/by-id/wwn-0xpatha-part1' /lib/udev/rules.d/60-kpartx.rules:30 update old name, '/dev/disk/by-id/dm-name-mpatha-part1' no longer belonging to '/devices/virtual/block/dm-8' no reference left, remove '/dev/disk/by-id/dm-name-mpatha-part1' update old name, '/dev/disk/by-id/dm-uuid-part1-mpath-360002ac00000000000001904000028be' no longer belonging to '/devices/virtual/block/dm-8' no reference left, remove '/dev/disk/by-id/dm-uuid-part1-mpath-360002ac00000000000001904000028be' update old name, '/dev/disk/by-uuid/f3cf40d9-e78e-425b-b88c-807535188ea8' no longer belonging to '/devices/virtual/block/dm-8' no reference left, remove '/dev/disk/by-uuid/f3cf40d9-e78e-425b-b88c-807535188ea8' update old name, '/dev/mapper/mpatha-part1' no longer belonging to '/devices/virtual/block/dm-8' no reference left, remove '/dev/mapper/mpatha-part1' handling device node '/dev/dm-8', devnum=b254:8, mode=0600, uid=0, gid=0 preserve already existing symlink '/dev/block/254:8' to '../dm-8' found 'b254:8' claiming '/run/udev/links/\x2fdisk\x2fby-id\x2fscsi-mpatha-part1' creating link '/dev/disk/by-id/scsi-mpatha-part1' to '/dev/dm-8' preserve already existing symlink '/dev/disk/by-id/scsi-mpatha-part1' to '../../dm-8' found 'b254:8' claiming '/run/udev/links/\x2fdisk\x2fby-id\x2fwwn-0xpatha-part1' creating link '/dev/disk/by-id/wwn-0xpatha-part1' to '/dev/dm-8' preserve already existing symlink '/dev/disk/by-id/wwn-0xpatha-part1' to '../../dm-8' created db file '/run/udev/data/b254:8' for '/devices/virtual/block/dm-8' .ID_FS_TYPE_NEW= ACTION=remote DEVLINKS=/dev/disk/by-id/wwn-0xpatha-part1 /dev/disk/by-id/scsi-mpatha-part1 DEVNAME=/dev/dm-8 DEVPATH=/devices/virtual/block/dm-8 DEVTYPE=disk DM_MPATH=mpatha DM_NAME=mpatha-part1 DM_PART=1 DM_STATE=ACTIVE DM_TABLE_STATE=LIVE DM_TYPE=scsi DM_UUID=part1-mpath-360002ac00000000000001904000028be DM_WWN=0xpatha ID_FS_TYPE= MAJOR=254 MINOR=8 SUBSYSTEM=block TAGS=:systemd: USEC_INITIALIZED=363164888098 Unload module index Unloaded link configuration context. -- Andrew Patterson Hewlett-Packard Enterprise
