More analysis. I grep-ed out just the handle_inotify reports. In this
5-minute log there were 777. Analysing them for uniqueness I get:
sort boot-udev-storm-handle_inotify.log | uniq -c
1 [829] handle_inotify: [1385] util_run_program: '/lib/udev/watershed'
(stdout) ' Reading all physical volumes. This may take a while...'
61 [829] handle_inotify: device
/sys/devices/pci0000:00/0000:00:09.0/host0/target0:0:0/0:0:0:0/block/sda
closed, synthesising 'change'
92 [829] handle_inotify: device
/sys/devices/pci0000:00/0000:00:09.0/host0/target0:0:0/0:0:0:0/block/sda/sda1
closed, synthesising 'change'
59 [829] handle_inotify: device
/sys/devices/pci0000:00/0000:00:09.0/host0/target0:0:0/0:0:0:0/block/sda/sda2
closed, synthesising 'change'
81 [829] handle_inotify: device
/sys/devices/pci0000:00/0000:00:09.0/host0/target0:0:0/0:0:0:0/block/sda/sda3
closed, synthesising 'change'
97 [829] handle_inotify: device
/sys/devices/pci0000:00/0000:00:09.0/host0/target0:0:0/0:0:0:0/block/sda/sda4
closed, synthesising 'change'
148 [829] handle_inotify: device /sys/devices/virtual/block/dm-0 closed,
synthesising 'change'
141 [829] handle_inotify: device /sys/devices/virtual/block/dm-1 closed,
synthesising 'change'
97 [829] handle_inotify: device /sys/devices/virtual/block/dm-2 closed,
synthesising 'change'
** Attachment added: "handle_inotify log messages"
http://launchpadlibrarian.net/22986231/boot-udev-storm-handle_inotify.log
--
udev repeatedly generates "change" events for the same block device(s)
https://bugs.launchpad.net/bugs/332270
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