PR_MCE_KILL_SET(2const) — Linux manual page

PR_MCE_KILL_SET(2const)                           PR_MCE_KILL_SET(2const)

NAME         top

       PR_MCE_KILL_SET - set the machine check memory corruption kill
       policy

LIBRARY         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #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         top

       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         top

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

ERRORS         top

       EINVAL pol is not a valid value.

STANDARDS         top

       Linux.

HISTORY         top

       Linux 2.6.32.

SEE ALSO         top

       prctl(2), PR_MCE_KILL(2const)

COLOPHON         top

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Linux man-pages 6.15            2025-05-17        PR_MCE_KILL_SET(2const)

Pages that refer to this page: PR_MCE_KILL(2const),  PR_MCE_KILL_GET(2const)

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