CONFIG_IDEDISK_MULTI_MODE: Use multiple sector mode for Programmed Input/Output by default

General informations

The Linux kernel configuration item CONFIG_IDEDISK_MULTI_MODE has multiple definitions:

Use multiple sector mode for Programmed Input/Output by default found in drivers/ide/Kconfig

The configuration item CONFIG_IDEDISK_MULTI_MODE:

• prompt: Use multiple sector mode for Programmed Input/Output by default
• type: bool
• depends on: (none)
• defined in drivers/ide/Kconfig
• found in Linux kernels: 2.6.24–2.6.27

Help text

This setting is irrelevant for most IDE disks, with direct memory access, to which multiple sector mode does not apply. Multiple sector mode is a feature of most modern IDE hard drives, permitting the transfer of multiple sectors per Programmed Input/Output interrupt, rather than the usual one sector per interrupt. When this feature is enabled, it can reduce operating system overhead for disk Programmed Input/Output. On some systems, it also can increase the data throughput of Programmed Input/Output. Some drives, however, seemed to run slower with multiple sector mode enabled. Some drives claimed to support multiple sector mode, but lost data at some settings. Under rare circumstances, such failures could result in massive filesystem corruption.

If you get the following error, try to say Y here:

hda: set_multmode: status=0x51 { DriveReady SeekComplete Error } hda: set_multmode: error=0x04 { DriveStatusError }

If in doubt, say N.

Use multi-mode by default found in drivers/ide/Kconfig

The configuration item CONFIG_IDEDISK_MULTI_MODE:

• prompt: Use multi-mode by default
• type: bool
• depends on: (none)
• defined in drivers/ide/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.23

Help text

If you get this error, try to say Y here:

hda: set_multmode: status=0x51 { DriveReady SeekComplete Error } hda: set_multmode: error=0x04 { DriveStatusError }

If in doubt, say N.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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