On Thu, 2007-09-27 at 13:35 -0700, Tejun Heo wrote:
> Benjamin Herrenschmidt wrote:
> > Saw that popping up in my log today on a brand new T61 thinkpad:
> >
> > [ 427.712000] ata1.00: exception Emask 0x2 SAct 0x18 SErr 0x0 action 0x2 frozen
> > [ 427.712000] ata1.00: (spurious completions during NCQ issue=0x0 SAct=0x18 FIS=004040a1:00000024)
> > [ 427.712000] ata1.00: cmd 61/08:18:f4:74:54/00:00:04:00:00/40 tag 3 cdb 0x0 data 4096 out
> > [ 427.712000] res 40/00:28:64:e4:51/00:00:04:00:00/40 Emask 0x2 (HSM violation)
> > [ 427.712000] ata1.00: cmd 61/08:20:84:10:81/00:00:04:00:00/40 tag 4 cdb 0x0 data 4096 out
> > [ 427.712000] res 40/00:28:64:e4:51/00:00:04:00:00/40 Emask 0x2 (HSM violation)
> > [ 428.024000] ata1: soft resetting port
> > [ 428.196000] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> > [ 428.204000] ata1.00: configured for UDMA/100
> > [ 428.204000] ata1: EH complete
> > [ 428.204000] sd 0:0:0:0: [sda] 234441648 512-byte hardware sectors (120034 MB)
> > [ 428.204000] sd 0:0:0:0: [sda] Write Protect is off
> > [ 428.204000] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
> > [ 428.204000] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> >
> > Kernel recovered just fine and things seem smooth so far. Is that something I need
> > to worry about ?
>
> Please post the result of 'hdparm -I /dev/sda' and you don't need to
> worry about it too much.
Allright. What is happening exactly ? A fluke on the link ?
> benh@pasglop:~/kernels/linux-2.6$ sudo hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: ST9120822AS
Serial Number: 5LZ50702
Firmware Revision: 3.CLF
Standards:
Supported: 7 6 5 4
Likely used: 7
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 234441648
LBA48 user addressable sectors: 234441648
device size with M = 1024*1024: 114473 MBytes
device size with M = 1000*1000: 120034 MBytes (120 GB)
Capabilities:
LBA, IORDY(can be disabled)
Queue depth: 32
Standby timer values: spec'd by Standard, no device specific
minimum
R/W multiple sector transfer: Max = 16 Current = ?
Advanced power management level: unknown setting (0x8080)
Recommended acoustic management value: 254, current value: 0
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=240ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* SMART feature set
Security Mode feature set
* Power Management feature set
* Write cache
* Look-ahead
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* DOWNLOAD_MICROCODE
* Advanced Power Management feature set
SET_MAX security extension
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
* General Purpose Logging feature set
* IDLE_IMMEDIATE with UNLOAD
* SATA-I signaling speed (1.5Gb/s)
* Native Command Queueing (NCQ)
* Phy event counters
* Device-initiated interface power management
* Software settings preservation
* SMART Command Transport (SCT) feature set
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
supported: enhanced erase
66min for SECURITY ERASE UNIT. 66min for ENHANCED SECURITY ERASE
UNIT.
Checksum: correct
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