Rusty Conover wrote:
Hello Linux IDE Guys,
I'm encountering this error after a few days of decent load on the disks:
ata4.00: exception Emask 0x40 SAct 0x1 SErr 0x80800 action 0x6 frozen
ata4: SError: { HostInt 10B8B }
ata4.00: cmd 61/58:00:8d:40:08/00:00:01:00:00/40 tag 0 ncq 45056 out
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x44 (timeout)
ata4.00: status: { DRDY }
ata4: hard resetting link
ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata4.00: configured for UDMA/133
ata4: EH complete
sd 3:0:0:0: [sdd] 976773168 512-byte hardware sectors (500108 MB)
sd 3:0:0:0: [sdd] Write Protect is off
sd 3:0:0:0: [sdd] Mode Sense: 00 3a 00 00
sd 3:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
ata4.00: exception Emask 0x50 SAct 0x1 SErr 0x480900 action 0x6 frozen
ata4.00: irq_stat 0x08000000, interface fatal error
ata4: SError: { UnrecovData HostInt 10B8B Handshk }
ata4.00: cmd 61/08:00:fd:41:08/00:00:01:00:00/40 tag 0 ncq 4096 out
res 40/00:00:fd:41:08/00:00:01:00:00/40 Emask 0x50 (ATA bus error)
ata4.00: status: { DRDY }
ata4: hard resetting link
..
Its always on the same device sdd, I've swapped out the physical disks
and the error persists. Do you have any ideas what the cause could be?
I've checked connections, could it be a bad SATA cable?
Quite possibly. The errors indicate a bunch of problems on the SATA link
between the disk and the controller.
The full dmesg output is available at:
http://www.infogears.com/disk-failure.log
Kernel is:
Linux version 2.6.26.6-79.fc9.i686.PAE (mockbuild@) (gcc version 4.3.0
20080428 (Red Hat 4.3.0-8) (GCC) ) #1 SMP Fri Oct 17 1
4:38:28 EDT 2008
The FAQ mentions power issues being a possibility but I'm not sure if
there is a way to tell if that is the cause since it it always the same
device in a 6 device array.
If it's always the same device that seems a bit less likely, but I
wouldn't rule that out either (maybe that drive is more sensitive, or
it's on the end of the chain from the power supply, etc.)
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