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Udev is running udev-rule action upon 'resume'. However lvm2 in special case is doing replacement of 'soon-to-be-removed' device with 'error' target for resuming and then follows actual removal - the sequence is usually quick, so when udev start action - it can result in 'strange' error message in kernel log like: Process '/usr/sbin/dmsetup info -j 253 -m 17 -c --nameprefixes --noheadings --rows -o name,uuid,suspended' failed with exit code 1. To avoid this - we need to ensure there is synchronization wait for udev between 'resume' and 'remove' part of this process. However existing code put strict requirement to avoid synchronizing with udev inside critical section - but this originally came from requirement to not do anything special while there could be devices in suspend-state. Now we are able to see differnce between critical section with or without suspended devices. For udev synchronization only suspended devices are prohibited to be there - so slightly relax condition and allow calling and using 'fs_sync()' even inside critical section - but there must not be any suspended device.
This tree contains the LVM2 and device-mapper tools and libraries. For more information about LVM2 read the changelog in the WHATS_NEW file. Installation instructions are in INSTALL. There is no warranty - see COPYING and COPYING.LIB. Tarballs are available from: ftp://sourceware.org/pub/lvm2/ ftp://sources.redhat.com/pub/lvm2/ https://github.com/lvmteam/lvm2/releases The source code is stored in git: https://sourceware.org/git/?p=lvm2.git git clone git://sourceware.org/git/lvm2.git mirrored to: https://github.com/lvmteam/lvm2 git clone https://github.com/lvmteam/lvm2.git git clone git@github.com:lvmteam/lvm2.git Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing lists for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/lvm-devel lvm2-commits@lists.fedorahosted.org (Read-only archive of commits) Subscribe from https://fedorahosted.org/mailman/listinfo/lvm2-commits Mailing list for device-mapper development, including kernel patches and multipath-tools: dm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/dm-devel Website: https://sourceware.org/lvm2/ Report upstream bugs at: https://bugzilla.redhat.com/enter_bug.cgi?product=LVM%20and%20device-mapper or open issues at: https://github.com/lvmteam/lvm2/issues The source code repository used until 7th June 2012 is accessible here: http://sources.redhat.com/cgi-bin/cvsweb.cgi/LVM2/?cvsroot=lvm2.