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SubjectRe: regression: disk error loop (panic?) ide_do_rw_disk-bad:
Linus Torvalds wrote:
>
> On Tue, 17 Jul 2007, Bartlomiej Zolnierkiewicz wrote:
>> ide-disk driver and type 2 (REQ_TYPE_BLOCK_PC) requests don't mix well
>>
>> Probably some dumb application is sending packet commands without
>> checking the device type...
>
> Ok, we should definitely try to just translate the things, and instead of
> having user apps that have to know about the (generally not very
> interesting) differences between IDE and SCSI command set, and when the
> IDE driver gets a SCSI request (whether from the new generic SG layer or
> obviously the older SCSI-ioctl layer) it should "just work".
>
> So I object to that "dumb application" statement. It's the kernel that has
> traditionally been dumb in not smoothing over the differences between
> devices well enough.

BTW I found the application: it is hddtemp

Debian description:
Utility to monitor the temperature of your hard drive
.
hddtemp will give you the temperature of your PATA, SATA or SCSI hard
drive by reading Self-Monitoring Analysis and Reporting Technology
(S.M.A.R.T.) information (on drives that support this feature). Only
modern hard drives have a temperature sensor.

See http://www.guzu.net/linux/hddtemp.php , CCed to author.

ciao
cate


PS: more info about /dev/hdc:

# hdparm -i /dev/hdc

/dev/hdc:

Model=HDS722525VLAT80, FwRev=V36OA6EA, SerialNo=VN69TECFDDLE3A
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=7938kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: ATA/ATAPI-2,3,4,5,6
* signifies the current active mode


# hdparm -I /dev/hdc

/dev/hdc:

ATA device, with non-removable media
powers-up in standby; SET FEATURES subcmd spins-up.
Model Number: HDS722525VLAT80
Serial Number: VN69TECFDDLE3A
Firmware Revision: V36OA6EA
Standards:
Used: ATA/ATAPI-6 T13 1410D revision 3a
Supported: 6 5 4
Configuration:
Logical max current
cylinders 16383 65535
heads 16 1
sectors/track 63 63
--
CHS current addressable sectors: 4128705
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 488397168
device size with M = 1024*1024: 238475 MBytes
device size with M = 1000*1000: 250059 MBytes (250 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 = 0
Advanced power management level: unknown setting (0x0000)
Recommended acoustic management value: 128, current value: 254
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
* Release interrupt
* Host Protected Area feature set
* WRITE_BUFFER command
* READ_BUFFER command
* NOP cmd
* READ/WRITE_DMA_QUEUED
Advanced Power Management feature set
Power-Up In Standby feature set
SET_FEATURES required to spinup after power up
Address Offset Reserved Area Boot
SET_MAX security extension
Automatic Acoustic Management feature set
* 48-bit Address feature set
* Device Configuration Overlay feature set
* Mandatory FLUSH_CACHE
* FLUSH_CACHE_EXT
* SMART error logging
* SMART self-test
Security:
Master password revision code = 65534
supported
not enabled
not locked
frozen
not expired: security count
not supported: enhanced erase
120min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
* General Purpose Logging feature set
-
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