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The cluster log daemon (cmirrord) is not multi-threaded and can handle only one request at a time. When a log is stacked on top of a mirror (which itself contains a 'core' log), it creates a situation that cannot be solved without threading. When the top level mirror issues a "resume", the log daemon attempts to read from the log device to retrieve the log state. However, the log is a mirror which, before issuing the read, attempts to determine the 'sync' status of the region of the mirror which is to be read. This sync status request cannot be completed by the daemon because it is blocked on a read I/O to the very mirror requesting the sync status.
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://sources.redhat.com/pub/lvm2/ To access the CVS tree use: cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 login CVS password: cvs cvs -d :pserver:cvs@sources.redhat.com:/cvs/lvm2 co LVM2 Mailing list for general discussion related to LVM2: linux-lvm@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm Mailing list for LVM2 development, patches and commits: lvm-devel@redhat.com Subscribe from https://www.redhat.com/mailman/listinfo/linux-lvm 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