NAME

PR_MCE_KILL_SET - set the machine check memory corruption kill policy

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <linux/prctl.h>  /* Definition of PR_* constants */
#include <sys/prctl.h>

int prctl(PR_MCE_KILL, PR_MCE_KILL_SET, long pol, 0L, 0L);

DESCRIPTION

Use a thread-specific memory corruption kill policy.

pol defines whether the policy is early kill (PR_MCE_KILL_EARLY), late kill (PR_MCE_KILL_LATE), or the system-wide default (PR_MCE_KILL_DEFAULT).

Early kill means that the thread receives a SIGBUS signal as soon as hardware memory corruption is detected inside its address space.

In late kill mode, the process is killed only when it accesses a corrupted page. See sigaction(2) for more information on the SIGBUS signal.

RETURN VALUE

On success, 0 is returned. On error, -1 is returned, and errno is set to indicate the error.

ERRORS

EINVAL

pol is not a valid value.

STANDARDS

Linux.

HISTORY

Linux 2.6.32.

SEE ALSO

prctl(2), PR_MCE_KILL(2const)