Miscellaneous parameters

Parameter	Dflt	Min	Max
ARG_MAX	10240	10240	1048576
FPKIND	0	0	3
INITFILE	/etc/inittab
MAXLINK	1000	1000	32767
MSETIMEOUT	60	10	100
NULLPTR	1	0	2
PRFMAX	4096	2048	10240
PROCTLLID	2	1	8
PUTBUFSZ	2000	2000	10000
SANITYCLK	0	0	1
SHLBMAX	3	2	6
SYSDUMP_SELECTIVE	1	0	2
SYSDUMP_ABORT_VERIFY	1	0	1
USER_RDPMC	0	0	1
USER_RDTSC	0	0	1
WS_MAXSTATION	17	1	17

ARG_MAX

This is the maximum number of characters (including NUL characters) allowed in the argument and environment strings passed to an exec system call. This can be increased to allow larger argument lists.

FPKIND

Type of floating-point support: ``0''=auto-detect, ``1''=software emulator, ``2''=Intel 287 coprocessor, ``3''=Intel 387 coprocessor.

INITFILE

Specifies the file to use as input to /sbin/init (default is /etc/inittab).

MAXLINK

Specifies the maximum number of links (directory entries) permitted in a single directory. Do not attempt to increase this value beyond ``32767''.

MSETIMEOUT

Specifies the timing window for the emulation of the middle mouse button on a 2 button mouse. The range is from 10ms to 100ms. If the user presses the left mouse button and the right mouse button within this timing window, a middle button event is generated.

NULLPTR

Controls the default state of the null pointer workaround and whether logging should occur. When the value is ``0'', the workaround is disabled by default, and logging is disabled; when the value is ``1'', the workaround is enabled by default, and logging is disabled; when the value if ``2'', the workaround is enabled by default, and logging is enabled.

When the workaround is enabled [either by default or through the nullptr(1) command], null pointer reads return zero instead of faulting with SIGSEGV. When logging is enabled and the workaround is enabled for a process, the first time an executable program in that process reads a null pointer, a message is sent to the console.

PRFMAX

Maximum number of kernel symbols for which the kernel profiler has space allocated.

PROCTLLID

Specifies the Level ID when you use MAC (Mandatory Access Control) for the control file in the processor filesystem.

PUTBUFSZ

Specifies the size of a circular buffer, putbuf, that is used to contain a copy of the last PUTBUFSZ characters written to the console by the operating system. The contents of putbuf can be viewed using the crash(1M) command panic option, or from kdb using putbuf number of characters dump.

SANITYCLK

Enable sanity clock on machines that support this feature.

SHLBMAX

Specifies the maximum number of static shared libraries that can be attached to a process at one time.

SYSDUMP_SELECTIVE

This parameter controls the size and type of information stored in a system memory dump. If the value is ``0'', then both kernel and user mapped memory are dumped (assuming the dump slice is large enough). If the value is ``1'', then only kernel mapped memory is dumped. If the value is ``2'', only a selected portion of kernel mapped memory pages are dumped. The crash(1M) command is used to examine the dumped system images.

SYSDUMP_ABORT_VERIFY

If set to ``1'', a prompt is issued which requires you to enter ``yes'' (case insensitive) to abort a dump. Pressing <Enter> instead of entering ``yes'' causes dump processing to continue. If set to ``0'', any key pressed during the dump processing will abort the dump.

USER_RDPMC

When non-zero, the user can use the rdpmc instruction, if available.

USER_RDTSC

When non-zero, the user can use the rdtsc instruction, if available.

WS_MAXSTATION

Maximum number of workstations.