[ale] Software RAID Problems

Jason Vinson vinson.lists at charter.net
Sun Feb 29 20:18:49 EST 2004


I recently purchased a Promise IDE controller and I am trying to set up 
a 2 drive RAID set on it, but it's not cooperating.  I have tried to to 
build the raid a few times and this is what I see, followed by a hard 
lockup.

Feb 29 20:05:31 shosta md0: max total readahead window set to 508k
Feb 29 20:05:31 shosta md0: 1 data-disks, max readahead per data-disk: 
508k
Feb 29 20:05:31 shosta raid1: device ide/host2/bus1/target0/lun0/part1 
operational as mirror 1
Feb 29 20:05:31 shosta raid1: device ide/host2/bus0/target0/lun0/part1 
operational as mirror 0
Feb 29 20:05:31 shosta raid1: raid set md0 not clean; reconstructing 
mirrors
Feb 29 20:05:31 shosta raid1: raid set md0 active with 2 out of 2 
mirrors
Feb 29 20:05:31 shosta md: updating md0 RAID superblock on device
Feb 29 20:05:31 shosta md: ide/host2/bus1/target0/lun0/part1 [events: 
00000001]<6>(write) ide/host2/bus1/target0/lun0/part1's sb offset: 
78148096
Feb 29 20:05:31 shosta md: ide/host2/bus0/target0/lun0/part1 [events: 
00000001]<6>(write) ide/host2/bus0/target0/lun0/part1's sb offset: 
78150592
Feb 29 20:05:31 shosta md: syncing RAID array md0
Feb 29 20:05:31 shosta md: minimum _guaranteed_ reconstruction speed: 
100 KB/sec/disc.
Feb 29 20:05:31 shosta md: using maximum available idle IO bandwith 
(but not more than 100000 KB/sec) for reconstruction.
Feb 29 20:05:31 shosta md: using 508k window, over a total of 78148096 
blocks.
Feb 29 20:05:57 shosta hde: dma_intr: status=0x51 { DriveReady 
SeekComplete Error }
Feb 29 20:05:57 shosta hde: dma_intr: error=0x40 { UncorrectableError 
}, LBAsect=1139948, sector=1139840
Feb 29 20:05:57 shosta end_request: I/O error, dev 21:01 (hde), sector 
1139840
Feb 29 20:05:57 shosta raid1: Disk failure on 
ide/host2/bus0/target0/lun0/part1, disabling device.
Feb 29 20:05:57 shosta  Operation continuing on 1 devices
Feb 29 20:05:57 shosta raid1: mirror resync was not fully finished, 
restarting next time.
Feb 29 20:05:57 shosta md: updating md0 RAID superblock on device
Feb 29 20:05:57 shosta md: ide/host2/bus1/target0/lun0/part1 [events: 
00000002]<6>(write) ide/host2/bus1/target0/lun0/part1's sb offset: 
78148096
Feb 29 20:05:57 shosta md: recovery thread got woken up ...
Feb 29 20:05:57 shosta md0: no spare disk to reconstruct array! -- 
continuing in degraded mode
Feb 29 20:05:57 shosta md: recovery thread finished ...
Feb 29 20:05:57 shosta md: (skipping faulty 
ide/host2/bus0/target0/lun0/part1 )
Feb 29 20:06:01 shosta hde: dma_intr: status=0x51 { DriveReady 
SeekComplete Error }
Feb 29 20:06:01 shosta hde: dma_intr: error=0x40 { UncorrectableError 
}, LBAsect=1139948, sector=1139848
Feb 29 20:06:01 shosta end_request: I/O error, dev 21:01 (hde), sector 
1139848
Feb 29 20:06:05 shosta hde: dma_intr: status=0x51 { DriveReady 
SeekComplete Error }
Feb 29 20:06:05 shosta hde: dma_intr: error=0x40 { UncorrectableError 
}, LBAsect=1139948, sector=1139856
Feb 29 20:06:05 shosta end_request: I/O error, dev 21:01 (hde), sector 
1139856
Feb 29 20:06:25 shosta hde: dma_timer_expiry: dma status == 0x21
Feb 29 20:06:35 shosta hde: error waiting for DMA
Feb 29 20:06:35 shosta hde: dma timeout retry: status=0x51 { DriveReady 
SeekComplete Error }
Feb 29 20:06:35 shosta hde: dma timeout retry: error=0x40 { 
UncorrectableError }, LBAsect=1139948, sector=1139864
Feb 29 20:06:35 shosta end_request: I/O error, dev 21:01 (hde), sector 
1139864
Feb 29 20:06:45 shosta hde: irq timeout: status=0xd0 { Busy }
Feb 29 20:06:45 shosta
Feb 29 20:06:45 shosta PDC202XX: Primary channel reset.
Feb 29 20:06:45 shosta ide2: reset: success

The ide2: reset is what is most likely causing the hard lockup, but I 
have no idea what to do to fix this.  I have tried multiple drives and 
different ribbon cables, and no luck.  Has anyone else seen this?

Jason



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