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Related bugs

Bug #802626: vgchange may deadlock in initramfs when VG present that's not used for rootfs	High	Fix Released
Bug #804577: make exact version match between libudev0 and udev	Medium	Fix Released
Bug #807306: [oneiric] Keyboard & mouse not working in X - incomplete migration to /run	High	Fix Released
Bug #815962: oneiric d-i based images kernel panic on boot	Critical	Fix Released
Bug #817443: d-i based images failed to install: mount: mounting /dev on /target/dev/ failed: Invalid argument	Critical	Fix Released
Bug #818177: boot failures as /dev is not transferred to /root (because 'udevadm exit' times out waiting for a deadlocked worker)	High	Fix Released
Bug #826662: PulseAudio jack detection patch	Undecided	Fix Released
Bug #827489: Bluetooth keyboards and mice stopped working in X server	Undecided	Fix Released
Bug #831516: udev missing input_id in initramfs	Low	Fix Released
Bug #1014460: Touchpad sometimes not working upon system startup	High	Fix Released
Bug #1017715: Serialization problem of udev events with DM_COOKIE set	Medium	Fix Released

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Related blueprints

2735. By Martin Pitt on 2012-07-16

releasing version 173-0ubuntu4.3

2734. By Martin Pitt on 2012-07-16

fix-race-condition-of-serio-driver-module-not-loading.patch:
Work around race condition in PS/2 keyboard/mouse handling. This resulted
in udev sometimes failing to load the psmouse driver, causing touchpads to
occasionally not work after boot up. (LP: #1014460)

2733. By Martin Pitt on 2012-07-16

Refresh debian/patches/avoid-exit-deadlock-for-dm_cookie.patch:
avoid serialization issues in handling of events with DM_COOKIE
set (LP: #1017715).

2732. By Steve Langasek on 2012-03-05

Add debian/patches/avoid-exit-deadlock-for-dm_cookie.patch,
debian/libudev0.symbols: do not exit across a pending DM_COOKIE
event to avoid vgchange deadlocks, thanks to Herton R. Krzesinski
(LP: #802626).

2731. By Steve Langasek on 2011-12-16

releasing version 173-0ubuntu4.1

2730. By Steve Langasek on 2011-12-16

tweaking the changelog text because I'm just like that

2729. By Andy Whitcroft on 2011-12-16

debian/udev.initramfs-bottom: increase the client side timeout to
better cope with potential timeout extension issues in udev. We very
much would prefer udev to time itself out and guarentee to have
completed than take action ourselves. Very worst case the timeout
may be doubled from the default of 60s so increase ours accordingly.
Note, we should only ever trip this timeout when we are already in
severe trouble. (LP: #818177)

2728. By Andy Whitcroft on 2011-12-16

avoid-exit-deadlock-for-timely-events: avoid deadlock when exiting
by continuing to handle events with timeliness requirements.
The timeliness requirement will be violated if we ignore them which
is highly undesirable. Also these events are typically dependant
events and may well block the events we are waiting on leading to
boot delays and uninitialised devices. (LP: #842560)

2727. By Andy Whitcroft on 2011-12-16

debian/udev.initramfs-bottom: ignore timeout errors from udevadm we
expect (and indeed requested) them in cirtain failure modes. If we
do not we will bail out early and not transfer /dev into /root which
is always fatal leading to unbootable machines. (LP: #818177)

2726. By Steve Langasek on 2011-10-08

releasing version 173-0ubuntu4