[Bug 45858] Re: hibernate fails on machine with (software) raid 1 devices

[Tony Austin]

Almost the same problem here on HP nx8220.  Resuming from hibernate does
not give back the saved state and md1 is marked as not clean and
immediately starts to resync.

Extract from log:-

Oct 11 16:30:49 localhost kernel: [17179574.012000] md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27
Oct 11 16:30:49 localhost kernel: [17179574.016000] md: bitmap version 4.39
Oct 11 16:30:49 localhost kernel: [17179574.020000] md: raid1 personality registered as nr 3
Oct 11 16:30:49 localhost kernel: [17179574.264000] md: md0 stopped.
Oct 11 16:30:49 localhost kernel: [17179574.308000] md: bind<hdb1>
Oct 11 16:30:49 localhost kernel: [17179574.308000] md: bind<hda1>
Oct 11 16:30:49 localhost kernel: [17179574.312000] raid1: raid set md0 active with 2 out of 2 mirrors
Oct 11 16:30:49 localhost kernel: [17179574.328000] md: md1 stopped.
Oct 11 16:30:49 localhost kernel: [17179574.380000] md: bind<hdb3>
Oct 11 16:30:49 localhost kernel: [17179574.380000] md: bind<hda3>
Oct 11 16:30:49 localhost kernel: [17179574.384000] md: md1: raid array is not clean -- starting background reconstruction
Oct 11 16:30:49 localhost kernel: [17179574.388000] raid1: raid set md1 active with 2 out of 2 mirrors
Oct 11 16:30:49 localhost kernel: [17179574.392000] md: syncing RAID array md1
Oct 11 16:30:49 localhost kernel: [17179574.396000] md: minimum _guaranteed_ reconstruction speed: 1000 KB/sec/disc.
Oct 11 16:30:49 localhost kernel: [17179574.396000] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for reconstruction.
Oct 11 16:30:49 localhost kernel: [17179574.404000] md: using 128k window, over a total of 76878976 blocks.
Oct 11 16:30:49 localhost kernel: [17179574.532000] Attempting manual resume
Oct 11 16:30:49 localhost kernel: [17179574.536000] Stopping tasks: ============
Oct 11 16:30:49 localhost kernel: [17179580.540000] stopping tasks failed (1 tasks remaining)
Oct 11 16:30:49 localhost kernel: [17179580.544000] Restarting tasks...<6> Strange, md1_resync not stopped
Oct 11 16:30:49 localhost kernel: [17179580.548000] done
Oct 11 16:30:49 localhost kernel: [17179580.924000] EXT3-fs: INFO: recovery required on readonly filesystem.
Oct 11 16:30:49 localhost kernel: [17179580.928000] EXT3-fs: write access will be enabled during recovery.
Oct 11 16:30:49 localhost kernel: [17179584.268000] EXT3-fs: recovery complete.
Oct 11 16:30:49 localhost kernel: [17179584.268000] kjournald starting. Commit interval 5 seconds
Oct 11 16:30:49 localhost kernel: [17179584.276000] EXT3-fs: mounted filesystem with ordered data mode.
Oct 11 16:30:49 localhost kernel: [17179593.324000] Linux agpgart interface v0.101 (c) Dave Jones

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hibernate fails on machine with (software) raid 1 devices
https://launchpad.net/bugs/45858