Lines Matching +full:enforce +full:- +full:video +full:- +full:mode
5 .. See scripts/check-sysctl-docs to keep this up to date
13 Documentation/admin-guide/sysctl/index.rst.
15 ------------------------------------------------------------------------------
39 If BSD-style process accounting is enabled these values control
58 See Documentation/power/video.rst. This allows the video resume mode to be set,
71 The machine hardware name, the same output as ``uname -m``
129 Ctrl-Alt-Delete). Writing a value to this file which doesn't
130 correspond to a running process will result in ``-ESRCH``.
132 See also `ctrl-alt-del`_.
170 %d dump mode, matches ``PR_SET_DUMPABLE`` and
225 ctrl-alt-del
228 When the value in this file is 0, ctrl-alt-del is trapped and
236 mode, the ctrl-alt-del is intercepted by the program before it
281 See Documentation/driver-api/firmware/fallback-mechanisms.rst.
311 the dump mode (1/2/orig_cpu) first for global buffer.
335 debug information. If enabled, arch-specific all-CPU stack dumping
355 See Documentation/admin-guide/lockup-watchdogs.rst for more information.
367 modern systems rely exclusively on the netlink-based uevent source and
381 1: Will non-maskably interrupt all CPUs and dump their backtraces when
447 -1: report an infinite number of warnings.
453 Controls whether the panic kmsg data should be reported to Hyper-V.
461 ignore-unaligned-usertrap
475 See also `unaligned-trap`_.
487 -EPERM) for unprivileged processes not in the io_uring_group group.
491 always fails with -EPERM. Existing io_uring instances can still be
501 to create an io_uring instance. If io_uring_group is set to -1 (the
529 -1 Unlimited calls to kexec. This is the default setting.
558 The correct long-term solution is to do the permission checks at
634 By default they are equal to -1, which means generic allocation logic.
640 2) Toggle with non-default value will be set back to -1 by kernel after
642 fails, it is undefined if the value remains unmodified or is reset to -1.
666 that are programmed to generate Non-Maskable Interrupts (NMIs) periodically
675 Documentation/admin-guide/kernel-parameters.rst).
726 promotion throughput. The per-node max promotion throughput in MB/s
744 1: Will non-maskably interrupt all CPUs and dump their backtraces when
774 The only way to tune these values is to rebuild the kernel :-)
780 if your architecture did not always support 32-bit UIDs (i.e. arm,
782 applications that use the old 16-bit UID/GID system calls, if the
826 1 Panic immediately. If the `panic` sysctl is also non-zero then the
928 1-100 Attempt to throttle perf's sample rate to this
951 -1 Allow use of (almost) all events by all users.
972 '``perf record -g``' or '``perf trace --call-graph fp``'.
975 enabled, otherwise writing to this file will return ``-EBUSY``.
983 Control size of per-cpu ring buffer not counted against mlock limit.
993 instance, when using '``perf record -g``' or '``perf trace --call-graph fp``'.
996 enabled, otherwise writing to this file will return ``-EBUSY``.
1025 When set to 2, which enables legacy mode (user space has direct access to cycle
1047 powersave-nap (PPC only)
1050 If set, Linux-PPC will use the 'nap' mode of powersaving,
1051 otherwise the 'doze' mode will be used.
1083 Value from 0 - 10000 is allowed.
1099 While long term we enforce one message per `printk_ratelimit`_
1119 a one-time setting until next reboot: once set, it cannot be changed by
1171 loaded to random addresses. Also for PIE-linked binaries, the
1182 non-legacy applications that would be broken this way, so for most
1191 real-root-dev
1194 See Documentation/admin-guide/initrd.rst.
1197 reboot-cmd (SPARC only)
1213 this value to 0. On Non-EAS platforms, write operation fails and
1220 Documentation/accounting/delay-accounting.rst. Enabling this feature incurs
1281 range of [0:600]. This could happen for instance if a powersave mode will
1289 See Documentation/userspace-api/seccomp_filter.rst.
1292 sg-big-buff
1367 -1 Legacy per-write sysctl value handling, with no printk warnings.
1433 On x86, each "split lock" imposes a system-wide performance penalty. On larger
1435 denials of service to well-behaved and potentially more important users.
1446 0 Disable the mitigation mode - just warns the split lock on kernel log
1448 1 Enable the mitigation mode (this is the default) - penalizes the split
1471 stop-a (SPARC only)
1474 Controls Stop-A:
1477 0 Stop-A has no effect.
1478 1 Stop-A breaks to the PROM (default).
1481 Stop-A is always enabled on a panic, so that the user can return to
1488 See Documentation/admin-guide/sysrq.rst.
1494 Non-zero if the kernel has been tainted. Numeric values, which can be
1510 4096 `(O)` externally-built ("out-of-tree") module was loaded
1518 See Documentation/admin-guide/tainted-kernels.rst for more information.
1525 See Documentation/admin-guide/kernel-parameters.rst for more details on
1529 threads-max
1539 The minimum value that can be written to ``threads-max`` is 1.
1541 The maximum value that can be written to ``threads-max`` is given by the
1544 If a value outside of this range is written to ``threads-max`` an
1571 See Documentation/admin-guide/kernel-parameters.rst and
1572 Documentation/trace/boottime-trace.rst.
1575 unaligned-trap
1588 See also `ignore-unaligned-usertrap`_.
1595 value is non-zero, unknown NMI is trapped and then panic occurs. At
1607 will return ``-EPERM``. Once set to 1, this can't be cleared from the
1666 to re-enable cores that by default were not running the watchdog,
1673 echo 0,2-4 > /proc/sys/kernel/watchdog_cpumask