Kernel Parameters

Linux
The number of kernel parameters is not limited, but the length of the complete command
line (parameters including spaces etc.) is limited to a fixed number of characters. This
limit depends on the architecture and is between 256 and 4096 characters. It is defined
in the file
./include/asm/setup.h as COMMAND_LINE_SIZE.
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53c7xx=
[HW,SCSI] Amiga SCSI controllers
See header of drivers/scsi/53c7xx.c.
See also Documentation/scsi/ncr53c7xx.txt.
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acpi=
[HW,ACPI,X86-64,i386]
Advanced Configuration and Power Interface
Format: { force | off | ht | strict | noirq }
force -- enable ACPI if default was off
off -- disable ACPI if default was on
noirq -- do not use ACPI for IRQ routing
BKernel Parameters
ht -- run only enough ACPI to enable Hyper Threading
strict -- Be less tolerant of platforms that are not
strictly ACPI specification compliant.
See also Documentation/pm.txt, pci=noacpi
acpi_apic_instance=
[ACPI, IOAPIC]
Format:
2: use 2nd APIC table, if available
1,0: use 1st APIC table
default: 0
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