Hey
All,
Having an
interesting problem with a FC6 server regarding host bus errors - every now and
again in the messages log there are the following:
Apr 20 04:58:05
lftvm01 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0
Apr 20 04:58:05 lftvm01 kernel: ata2.00: (BMDMA stat 0x6)
Apr 20 04:58:05 lftvm01 kernel: ata2.00: cmd 25/00:f8:d7:ef:61/00:00:1c:00:00/e0 tag 0 cdb 0x0 data 126976 in
Apr 20 04:58:05 lftvm01 kernel: res 51/84:a7:28:f0:61/84:00:1c:00:00/e0 Emask 0x20 (host bus error)
Apr 20 04:58:05 lftvm01 kernel: ata2.00: configured for UDMA/133
Apr 20 04:58:05 lftvm01 kernel: ata2.01: configured for UDMA/133
Apr 20 04:58:05 lftvm01 kernel: ata2: EH complete
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
Apr 20 04:58:05 lftvm01 kernel: sdc: Write Protect is off
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)
Apr 20 04:58:05 lftvm01 kernel: sdd: Write Protect is off
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Apr 20 04:58:05 lftvm01 kernel: ata2.00: (BMDMA stat 0x6)
Apr 20 04:58:05 lftvm01 kernel: ata2.00: cmd 25/00:f8:d7:ef:61/00:00:1c:00:00/e0 tag 0 cdb 0x0 data 126976 in
Apr 20 04:58:05 lftvm01 kernel: res 51/84:a7:28:f0:61/84:00:1c:00:00/e0 Emask 0x20 (host bus error)
Apr 20 04:58:05 lftvm01 kernel: ata2.00: configured for UDMA/133
Apr 20 04:58:05 lftvm01 kernel: ata2.01: configured for UDMA/133
Apr 20 04:58:05 lftvm01 kernel: ata2: EH complete
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: 625142448 512-byte hdwr sectors (320073 MB)
Apr 20 04:58:05 lftvm01 kernel: sdc: Write Protect is off
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdc: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: 625142448 512-byte hdwr sectors (320073 MB)
Apr 20 04:58:05 lftvm01 kernel: sdd: Write Protect is off
Apr 20 04:58:05 lftvm01 kernel: SCSI device sdd: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
and then every now
and again
Apr 20 04:54:32
lftvm01 kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2
frozen
Apr 20 04:54:32 lftvm01 kernel: ata2.00: cmd 25/00:08:ff:3d:8c/00:01:1d:00:00/e0 tag 0 cdb 0x0 data 135168 in
Apr 20 04:54:32 lftvm01 kernel: res 40/00:c7:d0:61:84/84:00:1d:00:00/e0 Emask 0x4 (timeout)
Apr 20 04:54:39 lftvm01 kernel: ata2: port is slow to respond, please be patient (Status 0xd0)
Apr 20 04:55:02 lftvm01 kernel: ata2: port failed to respond (30 secs, Status 0xd0)
Apr 20 04:55:02 lftvm01 kernel: ata2: soft resetting port
Apr 20 04:55:02 lftvm01 kernel: ata2.00: configured for UDMA/133
Apr 20 04:55:02 lftvm01 kernel: ata2.01: configured for UDMA/133
Apr 20 04:55:02 lftvm01 kernel: ata2: EH complete
Apr 20 04:54:32 lftvm01 kernel: ata2.00: cmd 25/00:08:ff:3d:8c/00:01:1d:00:00/e0 tag 0 cdb 0x0 data 135168 in
Apr 20 04:54:32 lftvm01 kernel: res 40/00:c7:d0:61:84/84:00:1d:00:00/e0 Emask 0x4 (timeout)
Apr 20 04:54:39 lftvm01 kernel: ata2: port is slow to respond, please be patient (Status 0xd0)
Apr 20 04:55:02 lftvm01 kernel: ata2: port failed to respond (30 secs, Status 0xd0)
Apr 20 04:55:02 lftvm01 kernel: ata2: soft resetting port
Apr 20 04:55:02 lftvm01 kernel: ata2.00: configured for UDMA/133
Apr 20 04:55:02 lftvm01 kernel: ata2.01: configured for UDMA/133
Apr 20 04:55:02 lftvm01 kernel: ata2: EH complete
Doesn't always cause
a crash but looks like sometimes it might. Have had a look around at various
places and haven't found a definitive cause let alone an
answer.
If anyone has any
ideas or theories please throw em out there. Curiously these errors only occur
on ata2, we have 2 drives sitting on ata1 without an issue. ata1 drives are the
"os" and ata2 drives are the "data"
Some more detail
about the machine / OS.
Kernel:
2.6.20-1.2933.fc6PAE
Drives:
4x WD 320Gb SATA Drives
ATA
Module: ata_piix
CPU:
Dual-Core Intel Xeon 3.0Ghz
Mem:
6Gb
Not exactly sure
what the motherboard is - it's a "whitebox" server not Tier1
(IBM,HP,Dell)
Cheers
Dave
Brown
IT Consultant
RHCE, MCP, CCA
IT Consultant
RHCE, MCP, CCA
175 Fullarton Rd
Dulwich
SA 5065
Ph: (08) 8304
8888
Fax: (08) 8364 2910
Mob: 0414 494 802
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