PR_MCE_KILL_SET(2const) PR_MCE_KILL_SET(2const)
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_DE-
FAULT).
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 cor-
rupted page. See sigaction(2) for more information on the SIGBUS sig-
nal.
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)
Linux man-pages 6.9.1 2024-06-01 PR_MCE_KILL_SET(2const)
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