DMA u sata (was: nereagujici aplikace pri spouste volneho cpu)

[Aleš Kozumplík]

zdravim,

mam sata disk WD pripojeny na Silicon Image 3512A radici (sata_sil). kdyz se 
pokusim zapnout dma pres:
hdparm -d1 /dev/sda

dostanu:
/dev/sda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Inappropriate ioctl for device


na http://www.abclinuxu.cz/forum/show/75149 je vlakno na podobne tema 
vyvozujici, ze hdparm pro sata preci nemuze fungovat. jenze jak tedy nastavit 
dma - a jsem si jist, ze nefunguje, jezto pri kopirovani velkeho souboru 
stoupne vytizeni procesoru temer na 100% po celou dobu kdy disk pracuje - pro 
disk sata?

navic:

v poslednich jadrech (i distribucnich!) mi uz dokonce nejde zapnout dma ani 
pro cd mechaniku:
hdparm -d1 /dev/hda

/dev/hda:
 setting using_dma to 1 (on)
 HDIO_SET_DMA failed: Operation not permitted
 using_dma    =  0 (off)


problem jsem zatim pozoroval na vsech jadrech, ktere jsem mel doposud sanci 
pouzivat: tj. debiani 2.6.7 az 2.6.9 a ted vanilla 2.6.10.

mozna to cele souvisi s necim "brutalne shnilym" *nekde* uvnitr systemu - viz 
me vlakno z predvcerejska: "nereagujici aplikace pri spouste volneho cpu".

za vsechna zamysleni, navrhy a vlastni zkusenosti budu velmi vdecny.
Ales Kozumplikli

(pripojuji dmesg)

 AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x1fff3000
ACPI: FADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x1fff3040
ACPI: MADT (v001 Nvidia AWRDACPI 0x42302e31 AWRD 0x01010101) @ 0x1fff7740
ACPI: DSDT (v001 NVIDIA AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000
ACPI: PM-Timer IO Port: 0x1008
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 6:10 APIC version 16
ACPI: LAPIC_NMI (acpi_id[0x00] dfl dfl lint[0x1])
ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
ACPI: BIOS IRQ0 pin2 override ignored.
ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
ACPI: IRQ9 used by override.
Enabling APIC mode:  Flat.  Using 1 I/O APICs
Using ACPI (MADT) for SMP configuration information
Built 1 zonelists
Kernel command line: root=/dev/sda2 ro
mapped APIC to ffffd000 (fee00000)
mapped IOAPIC to ffffc000 (fec00000)
Initializing CPU#0
PID hash table entries: 2048 (order: 11, 32768 bytes)
Detected 1830.259 MHz processor.
Using pmtmr for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 515648k/524224k available (1863k kernel code, 8036k reserved, 818k 
data, 180k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay loop... 3620.86 BogoMIPS (lpj=1810432)
Security Framework v1.0.0 initialized
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
CPU: After generic identify, caps: 0383fbff c1c3fbff 00000000 00000000
CPU: After vendor identify, caps:  0383fbff c1c3fbff 00000000 00000000
CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line)
CPU: L2 Cache: 512K (64 bytes/line)
CPU: After all inits, caps:        0383fbff c1c3fbff 00000000 00000020
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: AMD Athlon(tm) XP 2500+ stepping 00
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
ENABLING IO-APIC IRQs
..TIMER: vector=0x31 pin1=0 pin2=-1
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfafc0, last bus=2
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20041105
ACPI: Interpreter enabled
ACPI: Using IOAPIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.HUB0._PRT]
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.AGPB._PRT]
ACPI: PCI Interrupt Link [LNK1] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LNK2] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LNK3] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LNK4] (IRQs 3 4 *5 6 7 9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LNK5] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LUBA] (IRQs 3 4 *5 6 7 9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LUBB] (IRQs 3 4 5 6 7 9 *10 11 12 14 15)
ACPI: PCI Interrupt Link [LMAC] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LAPU] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LACI] (IRQs 3 4 5 6 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LMCI] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LSMB] (IRQs 3 4 5 6 7 *9 10 11 12 14 15)
ACPI: PCI Interrupt Link [LUB2] (IRQs 3 4 5 6 7 9 10 *11 12 14 15)
ACPI: PCI Interrupt Link [LFIR] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [L3CM] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [LIDE] (IRQs 3 4 5 6 7 9 10 11 12 14 15) *0, 
disabled.
ACPI: PCI Interrupt Link [APC1] (IRQs *16), disabled.
ACPI: PCI Interrupt Link [APC2] (IRQs *17), disabled.
ACPI: PCI Interrupt Link [APC3] (IRQs *18), disabled.
ACPI: PCI Interrupt Link [APC4] (IRQs *19), disabled.
ACPI: PCI Interrupt Link [APC5] (IRQs *16), disabled.
ACPI: PCI Interrupt Link [APCF] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCG] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCH] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCI] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCJ] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCK] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCS] (IRQs *23), disabled.
ACPI: PCI Interrupt Link [APCL] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCM] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [AP3C] (IRQs 20 21 22) *0, disabled.
ACPI: PCI Interrupt Link [APCZ] (IRQs 20 21 22) *0, disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI init
pnp: PnP ACPI: found 15 devices
PnPBIOS: Disabled by ACPI
SCSI subsystem initialized
PCI: Using ACPI for IRQ routing
** PCI interrupts are no longer routed automatically.  If this
** causes a device to stop working, it is probably because the
** driver failed to call pci_enable_device().  As a temporary
** workaround, the "pci=routeirq" argument restores the old
** behavior.  If this argument makes the device work again,
** please email the output of "lspci" to bjorn.helgaas na hp.com
** so I can fix the driver.
pnp: 00:00: ioport range 0x1000-0x107f could not be reserved
pnp: 00:00: ioport range 0x1080-0x10ff has been reserved
pnp: 00:00: ioport range 0x1400-0x147f has been reserved
pnp: 00:00: ioport range 0x1480-0x14ff could not be reserved
pnp: 00:00: ioport range 0x1800-0x187f has been reserved
pnp: 00:00: ioport range 0x1880-0x18ff has been reserved
pnp: 00:01: ioport range 0x1c00-0x1c3f has been reserved
pnp: 00:01: ioport range 0x2000-0x203f has been reserved
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
devfs: 2004-01-31 Richard Gooch (rgooch na atnf.csiro.au)
devfs: boot_options: 0x0
Initializing Cryptographic API
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 48 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
libata version 1.10 loaded.
sata_sil version 0.8
ACPI: PCI Interrupt Link [APC3] enabled at IRQ 18
ACPI: PCI interrupt 0000:01:0d.0[A] -> GSI 18 (level, high) -> IRQ 177
ata1: SATA max UDMA/100 cmd 0xE0802080 ctl 0xE080208A bmdma 0xE0802000 irq 177
ata2: SATA max UDMA/100 cmd 0xE08020C0 ctl 0xE08020CA bmdma 0xE0802008 irq 177
ata1: dev 0 cfg 49:2f00 82:346b 83:7f21 84:4003 85:3469 86:3c01 87:4003 
88:203f
ata1: dev 0 ATA, max UDMA/100, 234441648 sectors: lba48
ata1: dev 0 configured for UDMA/100
scsi0 : sata_sil
ata2: no device found (phy stat 00000000)
scsi1 : sata_sil
elevator: using anticipatory as default io scheduler
  Vendor: ATA       Model: WDC WD1200JD-00G  Rev: 02.0
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
SCSI device sda: drive cache: write back
SCSI device sda: 234441648 512-byte hdwr sectors (120034 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target0/lun0: p1 p2 p3
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
input: AT Translated Set 2 keyboard on isa0060/serio0
i2c /dev entries driver
i2c_adapter i2c-1: nForce2 SMBus adapter at 0x1c00
i2c_adapter i2c-2: nForce2 SMBus adapter at 0x2000
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET: Registered protocol family 8
NET: Registered protocol family 20
ACPI wakeup devices: 
HUB0 HUB1 USB0 USB1 USB2 F139 MMAC MMCI UAR1 
ACPI: (supports S0 S1 S4 S5)
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 180k freed
kjournald starting.  Commit interval 5 seconds
NET: Registered protocol family 1
Probing IDE interface ide0...
hda: CD-W58E, ATAPI CD/DVD-ROM drive
Probing IDE interface ide1...
Probing IDE interface ide2...
ide2: Wait for ready failed before probe !
Probing IDE interface ide3...
ide3: Wait for ready failed before probe !
Probing IDE interface ide4...
ide4: Wait for ready failed before probe !
Probing IDE interface ide5...
ide5: Wait for ready failed before probe !
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: ATAPI 32X CD-ROM CD-R/RW drive, 1280kB Cache
Uniform CD-ROM driver Revision: 3.20
EXT3 FS on sda2, internal journal
Generic RTC Driver v1.07
NTFS driver 2.1.22 [Flags: R/O MODULE].
NTFS volume version 3.1.
Linux agpgart interface v0.100 (c) Dave Jones
r8169 Gigabit Ethernet driver 1.2 loaded
ACPI: PCI Interrupt Link [APC1] enabled at IRQ 16
ACPI: PCI interrupt 0000:01:0b.0[A] -> GSI 16 (level, high) -> IRQ 185
eth0: Identified chip type is 'RTL8169s/8110s'.
eth0: RTL8169 at 0xe0836000, 00:0d:61:7e:8b:c2, IRQ 185
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ohci_hcd: 2004 Nov 08 USB 1.1 'Open' Host Controller (OHCI) Driver (PCI)
ACPI: PCI Interrupt Link [APCF] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:02.0[A] -> GSI 22 (level, high) -> IRQ 193
ohci_hcd 0000:00:02.0: nVidia Corporation nForce2 USB Controller
PCI: Setting latency timer of device 0000:00:02.0 to 64
ohci_hcd 0000:00:02.0: irq 193, pci mem 0xe8003000
ohci_hcd 0000:00:02.0: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
ACPI: PCI Interrupt Link [APCG] enabled at IRQ 21
ACPI: PCI interrupt 0000:00:02.1[B] -> GSI 21 (level, high) -> IRQ 201
ohci_hcd 0000:00:02.1: nVidia Corporation nForce2 USB Controller (#2)
PCI: Setting latency timer of device 0000:00:02.1 to 64
ohci_hcd 0000:00:02.1: irq 201, pci mem 0xe8004000
ohci_hcd 0000:00:02.1: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
ACPI: PCI Interrupt Link [APCL] enabled at IRQ 20
ACPI: PCI interrupt 0000:00:02.2[C] -> GSI 20 (level, high) -> IRQ 209
ehci_hcd 0000:00:02.2: nVidia Corporation nForce2 USB Controller
PCI: Setting latency timer of device 0000:00:02.2 to 64
ehci_hcd 0000:00:02.2: irq 209, pci mem 0xe8005000
ehci_hcd 0000:00:02.2: new USB bus registered, assigned bus number 3
PCI: cache line size of 64 is not supported by device 0000:00:02.2
ehci_hcd 0000:00:02.2: USB 2.0 initialized, EHCI 1.00, driver 26 Oct 2004
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 6 ports detected
input: PC Speaker
inserting floppy driver for 2.6.10ww
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
parport_pc: Ignoring new-style parameters in presence of obsolete ones
parport: PnPBIOS parport detected.
parport0: PC-style at 0x378 (0x778), irq 7, dma 3 
[PCSPP,TRISTATE,COMPAT,ECP,DMA]
input: GenPS/2 Genius Wheel Mouse on isa0060/serio1
mice: PS/2 mouse device common for all mice
ts: Compaq touchscreen protocol output
agpgart: Detected NVIDIA nForce2 chipset
agpgart: Maximum main memory to use for agp memory: 439M
agpgart: AGP aperture is 64M @ 0xe0000000
ACPI: PCI Interrupt Link [APCJ] enabled at IRQ 22
ACPI: PCI interrupt 0000:00:06.0[A] -> GSI 22 (level, high) -> IRQ 193
PCI: Setting latency timer of device 0000:00:06.0 to 64
intel8x0_measure_ac97_clock: measured 49900 usecs
intel8x0: clocking to 47429
cpci_hotplug: CompactPCI Hot Plug Core version: 0.2
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
Evaluate _OSC Set fails. Status = 0x0005
pciehp: add_host_bridge: status 5
pciehp: Fails to gain control of native hot-plug
shpchp: shpc_init : shpc_cap_offset == 0
shpchp: shpc_init : shpc_cap_offset == 0
shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
NFORCE2: IDE controller at PCI slot 0000:00:09.0
NFORCE2: chipset revision 162
NFORCE2: not 100% native mode: will probe irqs later
NFORCE2: 0000:00:09.0 (rev a2) UDMA133 controller
NFORCE2: port 0x01f0 already claimed by ide0
    ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
Probing IDE interface ide1...
Evaluate _OSC Set fails. Status = 0x0005
pciehp: add_host_bridge: status 5
pciehp: Fails to gain control of native hot-plug
r8169: eth0: link up
NET: Registered protocol family 17
ip_tables: (C) 2000-2002 Netfilter core team
ip_conntrack version 2.1 (4095 buckets, 32760 max) - 300 bytes per conntrack
NET: Registered protocol family 10
Disabled Privacy Extensions on device c036c920(lo)
IPv6 over IPv4 tunneling driver