shmsys:shminfo_shmseg

Description

Limit on the number of shared memory segments that any one process can attach.

Data Type

Signed short

Default

6

Range

0 to 32,767

Dynamic?

No. Loaded into shmseg field of shminfo structure.

Validation

The amount of space consumed by the maximum possible number of data structures to support system V shared memory is checked against 25% of the currently available kernel memory at the time the module is loaded. If the memory consumed is too large, the attempt to load the module fails.

When to Change

When the system limits are too low. Generally changed on the recommendation of software vendors.

Commitment Level

Unstable

Changes From Previous Release

shmsys:shminfo_shmseg