Why this bug was marked "No longer marked as found in versions 2.6.26-13lenny2. " ?
I have newest lenny kernel and problem is stil present.
(It is annoying, but becuase I have most of data on scsi disks,
IDE performance isn't very important currently beyond booting system)
r...@noisy:~# hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 2 MB in 3.25 seconds = 630.59 kB/sec
Timing buffered disk reads: 2 MB in 3.43 seconds = 597.07 kB/sec
r...@noisy:~# hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 24 MB in 2.02 seconds = 11.89 MB/sec
Timing buffered disk reads: 4 MB in 3.56 seconds = 1.12 MB/sec
r...@noisy:~# hdparm -tT /dev/hda
/dev/hda:
Timing cached reads: 16 MB in 2.06 seconds = 7.78 MB/sec
Timing buffered disk reads: 4 MB in 3.14 seconds = 1.27 MB/sec
r...@noisy:~# hdparm --direct -tT /dev/hda
/dev/hda:
Timing O_DIRECT cached reads: 4 MB in 2.87 seconds = 1.39 MB/sec
Timing O_DIRECT disk reads: 6 MB in 4.36 seconds = 1.38 MB/sec
r...@noisy:~# hdparm --direct -tT /dev/hda
/dev/hda:
Timing O_DIRECT cached reads: 4 MB in 2.74 seconds = 1.46 MB/sec
Timing O_DIRECT disk reads: 6 MB in 4.37 seconds = 1.37 MB/sec
#
As one can see it is even worse than it was (my previous reports given about
1.5 MB/s buffered disk read).
r...@noisy:~# hdparm -d /dev/hda
/dev/hda:
using_dma = 0 (off)
r...@noisy:~# hdparm -d1 /dev/hda
/dev/hda:
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Input/output error
using_dma = 0 (off)
# dmesg | tail
[6545265.490382] hda: no DMA mode selected
[6545265.490485] hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
#
r...@noisy:~# dpkg -l | grep linux-image
ii linux-image-2.6-686 2.6.26+17+lenny1 Linux 2.6
image on PPro/Celeron/PII/PIII/P4
ii linux-image-2.6-686-smp 2.6.18+6etch3 Linux 2.6
image on PPro/Celeron/PII/PIII/P4
ii linux-image-2.6-xen-686 2.6.26+17+lenny1 Linux 2.6
image on i686, oldstyle Xen suppor
ii linux-image-2.6.18-6-686 2.6.18.dfsg.1-23etch1 Linux
2.6.18 image on PPro/Celeron/PII/PIII/
ii linux-image-2.6.18-6-xen-686 2.6.18.dfsg.1-23etch1 Linux
2.6.18 image on i686
ii linux-image-2.6.18-6-xen-vserver-686 2.6.18.dfsg.1-23etch1 Linux
2.6.18 image on i686
ii linux-image-2.6.26-1-686 2.6.26-13lenny2 Linux
2.6.26 image on PPro/Celeron/PII/PIII/
ii linux-image-2.6.26-1-xen-686 2.6.26-13lenny2 Linux
2.6.26 image on i686, oldstyle Xen sup
ii linux-image-2.6.26-2-686 2.6.26-26lenny1 Linux
2.6.26 image on PPro/Celeron/PII/PIII/
ii linux-image-2.6.26-2-xen-686 2.6.26-26lenny1 Linux
2.6.26 image on i686, oldstyle Xen sup
r...@noisy:~# uname -a
Linux noisy 2.6.26-2-xen-686 #1 SMP Mon Aug 30 10:02:38 UTC 2010 i686 GNU/Linux
r...@noisy:~# hdparm -iI /dev/hda
/dev/hda:
Model=IBM-DTLA-307030, FwRev=XXXXXXXXX, SerialNo=XXXXXXXXX
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60036480
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-5 T13 1321D revision 1: ATA/ATAPI-2,3,4,5
* signifies the current active mode
ATA device, with non-removable media
powers-up in standby; SET FEATURES subcmd spins-up.
Model Number: IBM-DTLA-307030
Serial Number: XXXXXXXXXXX
Firmware Revision: TXXXXXXXXX
Standards:
Used: ATA/ATAPI-5 T13 1321D revision 1
Supported: 5 4 3 & some of 6
Configuration:
Logical max current
cylinders1 6383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 60036480
device size with M = 1024*1024: 29314 MBytes
device size with M = 1000*1000: 30738 MBytes (30 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 40 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: disabled
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
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
26min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct
r...@noisy:~#
Relevant part of dmesg
[ 0.000000] Linux version 2.6.26-2-xen-686 (Debian 2.6.26-25)
(da...@debian.org) (gcc version 4.1.3 20080704 (
prerelease) (Debian 4.1.2-25)) #1 SMP Mon Aug 30 10:02:38 UTC 2010
...
[ 3.670702] SCSI subsystem initialized
...
[ 3.779661] Uniform Multi-Platform E-IDE driver
[ 3.779882] ide: Assuming 33MHz system bus speed for PIO modes; override
with idebus=xx
[ 3.826060] piix: 450NX errata present, disabling IDE DMA.
[ 3.826060] piix: A BIOS update may resolve this.
[ 3.826338] PIIX4: IDE controller (0x8086:0x7111 rev 0x01) at PCI slot
0000:00:0c.1
[ 3.826421] PIIX4: not 100% native mode: will probe irqs later
[ 3.826629] PIIX4: IDE port disabled
[ 3.826828] ide0: BM-DMA at 0x2c20-0x2c27
[ 3.827081] Probing IDE interface ide0...
...
[ 4.119428] hda: IBM-DTLA-307030, ATA DISK drive
[ 4.796760] hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
[ 4.797030] hda: no DMA mode selected
[ 4.797244] hda: host max PIO4 wanted PIO255(auto-tune) selected PIO4
...
[ 4.811725] PIIX4: IDE controller (0x8086:0x84ca rev 0x03) at PCI slot
0000:00:10.0
[ 4.812005] PIIX4: device not capable of full native PCI mode
[ 4.812209] PIIX4: device disabled (BIOS)
...
[ 5.202827] libata version 3.00 loaded.
...
[ 5.877421] hda: max request size: 128KiB
[ 5.905570] hda: 60036480 sectors (30738 MB) w/1916KiB Cache, CHS=59560/16/63
[ 5.906121] hda: cache flushes not supported
[ 5.906606] hda: hda1 hda3
...
I can try kernel from squeeze.
I installed 2.6.32-5-686-xen from squeeze (and few dependencies),
but will it work with xen 3.2-1 ?
Regards,
Witek.
--
Witold Baryluk
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