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Greetings Ross,

The problem is that the requirements of ACPI is to have a
"taskfile register access", but that will not be accepted until 2.5.
Therefore, the short nice answer is that you and everyone else with a
laptop of system using ACPI are "HOSED".

I will be happy to provide you the TASKFILE code, however ACPI does not
yet have a method to call the kernel direct access.

Maybe when there are enough people screaming and raise general hell over
the issue it may happen earlier.

You can attempt the noisy reset additions to some versions of hdparm, and
then issuing the the checkpower commands until staus is reported as ready,
but that is very messy and you have to have that app in an accessible
location and that is not usable. The obvious reason is that the app is on
the disk that is spundown.

This is not the answer you wanted, but it is the cold bloody truth.


Andre Hedrick
Linux ATA Development
ASL, Inc. Tel: (510) 857-0055 x103
38875 Cherry Street Fax: (510) 857-0010
Newark, CA 94560 Web:

On Sat, 25 Aug 2001, Ross Boylan wrote:

> Most times when I go away from my system for an extended period and
> come back, my hard disk hangs up and I must power down the system to
> get it back (hardware reset is insufficient). It seems the attempt to
> power the disk back up doesn't quite work.
> I sent a note to Andre Hedrick awhile ago, but haven't heard anything
> back. Because of that, and because it seems the problem has something
> to do with power management, and because it's getting worse, I'm
> writing to you. I'll also try a few other addresses for Andre!
> The problem repeats often, but I can't quite get it at will. I tried
> going away for half an hour to see if the system would hang and it did
> not. I don't know if this is because half an hour is too little, or the
> system needs more total uptime to misbehave (I did the test first
> thing in the morning), or it needs to get hotter, or something else.
> I do not see this problem when running other OS's on the same
> hardware.
> This problem is making it difficult to use the system, and disaster
> recovery is taking an increasing amount of time, so I'd really like to
> isolate it and fix it.
> Here, with some possible transcription errors, is the console log from
> a recent incident:
> hda irq timeout: status 0xd0 { Busy }
> ide 0: reset success
> end_request: I/O error dev 03:06 (hda)
> sector 13976
> hda: status timeout: status = 0xd0 { Busy }
> hda: drive_not_ready for command
> Ext-fs error: (device ?? 16772
> device ide0(3,6))
> ext: write_inode:
> unable to read inode 3384 block 8369
> [more like that]
> remount fs read only
> When I hit hardware reset the BIOS start sequence appears and then I
> get Pri Master HDD Error.
> Power off, wait, power on, all's well (except, of course, that it
> fsck's the disks on restart).
> Can anyone suggest a diagnosis or cure? Could enabling the AMD Viper
> chipset support be causing trouble?
> Thanks.
> Details:
> Kernel 2.4.7 under Debian woody, built from source. The problem has
> been occuring for several generations of 2.4 kernels.
> /hda6 is my root partition, on an ATA2 Maxtor drive. /hdb is another
> Maxtor drive, ATA4. /hdc is a Sony ATA CD-Writer, CDU 928E. I have
> the ide-scsi driver loaded so I can write to it. /hdd non-existent.
> Gigabyte GA-71XE4 motherboard with an AMD 750 Chipset, including AMD
> 756 ISA controller. This is said to provide PIO and Bus Master
> (Ultra DMA33/ATA 66) operations. It has power management.
> I experience the problem with the BIOS setting for power management on
> or off.
> AMD Athlon 800Mhz CPU. 384Mg Ram.
> Here are excerpts of the kernel build options:
> /bin/sh scripts/Configure -d arch/i386/
> #
> # Using defaults found in .config
> #
> *
> * Code maturity level options
> *
> Prompt for development and/or incomplete code/drivers (CONFIG_EXPERIMENTAL) [N/y/?]
> *
> * Loadable module support
> *
> Enable loadable module support (CONFIG_MODULES) [Y/n/?]
> Set version information on all module symbols (CONFIG_MODVERSIONS) [Y/n/?]
> Kernel module loader (CONFIG_KMOD) [Y/n/?]
> *
> * Processor type and features
> *
> Processor family (386, 486, 586/K5/5x86/6x86/6x86MX, Pentium-Classic, Pentium-MMX, Pentium-Pro/Celeron/Pentium-II, Pentium-III/Celeron(Coppermine), Pentium-4, K6/K6-II/K6-III, Athlon/Duron/K7, Crusoe, Winchip-C6, Winchip-2, Winchip-2A/Winchip-3, CyrixIII/C3) [Athlon/Duron/K7]
> defined CONFIG_MK7
> Toshiba Laptop support (CONFIG_TOSHIBA) [N/y/m/?]
> /dev/cpu/microcode - Intel IA32 CPU microcode support (CONFIG_MICROCODE) [N/y/m/?]
> /dev/cpu/*/msr - Model-specific register support (CONFIG_X86_MSR) [N/y/m/?]
> /dev/cpu/*/cpuid - CPU information support (CONFIG_X86_CPUID) [N/y/m/?]
> High Memory Support (off, 4GB, 64GB) [off]
> Math emulation (CONFIG_MATH_EMULATION) [N/y/?]
> MTRR (Memory Type Range Register) support (CONFIG_MTRR) [N/y/?]
> Symmetric multi-processing support (CONFIG_SMP) [N/y/?]
> APIC and IO-APIC support on uniprocessors (CONFIG_X86_UP_IOAPIC) [N/y/?]
> *
> * General setup
> *
> Networking support (CONFIG_NET) [Y/n/?]
> SGI Visual Workstation support (CONFIG_VISWS) [N/y/?]
> PCI support (CONFIG_PCI) [Y/n/?]
> PCI access mode (BIOS, Direct, Any) [Any]
> PCI device name database (CONFIG_PCI_NAMES) [Y/n/?]
> EISA support (CONFIG_EISA) [Y/n/?]
> MCA support (CONFIG_MCA) [N/y/?]
> Support for hot-pluggable devices (CONFIG_HOTPLUG) [Y/n/?]
> *
> * PCMCIA/CardBus support
> *
> PCMCIA/CardBus support (CONFIG_PCMCIA) [N/y/m/?]
> System V IPC (CONFIG_SYSVIPC) [Y/n/?]
> BSD Process Accounting (CONFIG_BSD_PROCESS_ACCT) [Y/n/?]
> Sysctl support (CONFIG_SYSCTL) [Y/n/?]
> Kernel core (/proc/kcore) format (ELF, A.OUT) [ELF]
> Kernel support for a.out binaries (CONFIG_BINFMT_AOUT) [M/n/y/?]
> Kernel support for ELF binaries (CONFIG_BINFMT_ELF) [Y/m/n/?]
> Kernel support for MISC binaries (CONFIG_BINFMT_MISC) [M/n/y/?]
> Power Management support (CONFIG_PM) [Y/n/?]
> Advanced Power Management BIOS support (CONFIG_APM) [Y/m/n/?]
> Enable PM at boot time (CONFIG_APM_DO_ENABLE) [Y/n/?]
> Make CPU Idle calls when idle (CONFIG_APM_CPU_IDLE) [Y/n/?]
> Enable console blanking using APM (CONFIG_APM_DISPLAY_BLANK) [N/y/?]
> RTC stores time in GMT (CONFIG_APM_RTC_IS_GMT) [N/y/?]
> Allow interrupts during APM BIOS calls (CONFIG_APM_ALLOW_INTS) [N/y/?]
> Use real mode APM BIOS call to power off (CONFIG_APM_REAL_MODE_POWER_OFF) [N/y/?]
> *
> * Plug and Play configuration
> *
> Plug and Play support (CONFIG_PNP) [M/n/y/?]
> ISA Plug and Play support (CONFIG_ISAPNP) [M/n/?]
> *
> * Block devices
> *
> Normal PC floppy disk support (CONFIG_BLK_DEV_FD) [M/n/y/?]
> XT hard disk support (CONFIG_BLK_DEV_XD) [N/y/m/?]
> Parallel port IDE device support (CONFIG_PARIDE) [N/m/?]
> Compaq SMART2 support (CONFIG_BLK_CPQ_DA) [N/y/m/?]
> Compaq Smart Array 5xxx support (CONFIG_BLK_CPQ_CISS_DA) [N/y/m/?]
> Mylex DAC960/DAC1100 PCI RAID Controller support (CONFIG_BLK_DEV_DAC960) [N/y/m/?]
> Loopback device support (CONFIG_BLK_DEV_LOOP) [M/n/y/?]
> Network block device support (CONFIG_BLK_DEV_NBD) [N/y/m/?]
> RAM disk support (CONFIG_BLK_DEV_RAM) [N/y/m/?]
> *
> * Multi-device support (RAID and LVM)
> *
> Multiple devices driver support (RAID and LVM) (CONFIG_MD) [N/y/?]
> *
> * ATA/IDE/MFM/RLL support
> *
> ATA/IDE/MFM/RLL support (CONFIG_IDE) [Y/m/n/?]
> *
> * IDE, ATA and ATAPI Block devices
> *
> Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support (CONFIG_BLK_DEV_IDE) [Y/m/n/?]
> *
> * Please see Documentation/ide.txt for help/info on IDE drives
> *
> Use old disk-only driver on primary interface (CONFIG_BLK_DEV_HD_IDE) [N/y/?]
> Include IDE/ATA-2 DISK support (CONFIG_BLK_DEV_IDEDISK) [Y/m/n/?]
> Use multi-mode by default (CONFIG_IDEDISK_MULTI_MODE) [N/y/?]
> Include IDE/ATAPI CDROM support (CONFIG_BLK_DEV_IDECD) [M/n/y/?]
> Include IDE/ATAPI TAPE support (CONFIG_BLK_DEV_IDETAPE) [N/y/m/?]
> SCSI emulation support (CONFIG_BLK_DEV_IDESCSI) [M/n/?]
> *
> * IDE chipset support/bugfixes
> *
> CMD640 chipset bugfix/support (CONFIG_BLK_DEV_CMD640) [Y/n/?]
> CMD640 enhanced support (CONFIG_BLK_DEV_CMD640_ENHANCED) [N/y/?]
> RZ1000 chipset bugfix/support (CONFIG_BLK_DEV_RZ1000) [Y/n/?]
> Generic PCI IDE chipset support (CONFIG_BLK_DEV_IDEPCI) [Y/n/?]
> Sharing PCI IDE interrupts support (CONFIG_IDEPCI_SHARE_IRQ) [Y/n/?]
> Generic PCI bus-master DMA support (CONFIG_BLK_DEV_IDEDMA_PCI) [Y/n/?]
> Boot off-board chipsets first support (CONFIG_BLK_DEV_OFFBOARD) [N/y/?]
> Use PCI DMA by default when available (CONFIG_IDEDMA_PCI_AUTO) [Y/n/?]
> AEC62XX chipset support (CONFIG_BLK_DEV_AEC62XX) [N/y/?]
> ALI M15x3 chipset support (CONFIG_BLK_DEV_ALI15X3) [N/y/?]
> AMD Viper support (CONFIG_BLK_DEV_AMD7409) [Y/n/?]
> CMD64X chipset support (CONFIG_BLK_DEV_CMD64X) [N/y/?]
> CY82C693 chipset support (CONFIG_BLK_DEV_CY82C693) [N/y/?]
> Cyrix CS5530 MediaGX chipset support (CONFIG_BLK_DEV_CS5530) [N/y/?]
> HPT34X chipset support (CONFIG_BLK_DEV_HPT34X) [N/y/?]
> HPT366 chipset support (CONFIG_BLK_DEV_HPT366) [N/y/?]
> Intel PIIXn chipsets support (CONFIG_BLK_DEV_PIIX) [N/y/?]
> NS87415 chipset support (EXPERIMENTAL) (CONFIG_BLK_DEV_NS87415) [N/y/?]
> PROMISE PDC20246/PDC20262/PDC20267 support (CONFIG_BLK_DEV_PDC202XX) [N/y/?]
> ServerWorks OSB4 chipset support (CONFIG_BLK_DEV_OSB4) [N/y/?]
> SiS5513 chipset support (CONFIG_BLK_DEV_SIS5513) [N/y/?]
> SLC90E66 chipset support (CONFIG_BLK_DEV_SLC90E66) [N/y/?]
> Tekram TRM290 chipset support (EXPERIMENTAL) (CONFIG_BLK_DEV_TRM290) [N/y/?]
> VIA82CXXX chipset support (CONFIG_BLK_DEV_VIA82CXXX) [N/y/?]
> Other IDE chipset support (CONFIG_IDE_CHIPSETS) [N/y/?]
> IGNORE word93 Validation BITS (CONFIG_IDEDMA_IVB) [N/y/?]

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