diff options
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 479f33204a37..10b8cc1bda8d 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1446,6 +1446,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted. disable Do not enable intel_pstate as the default scaling driver for the supported processors + force + Enable intel_pstate on systems that prohibit it by default + in favor of acpi-cpufreq. Forcing the intel_pstate driver + instead of acpi-cpufreq may disable platform features, such + as thermal controls and power capping, that rely on ACPI + P-States information being indicated to OSPM and therefore + should be used with caution. This option does not work with + processors that aren't supported by the intel_pstate driver + or on platforms that use pcc-cpufreq instead of acpi-cpufreq. + no_hwp + Do not enable hardware P state control (HWP) + if available. intremap= [X86-64, Intel-IOMMU] on enable Interrupt Remapping (default) @@ -2509,6 +2521,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. timeout < 0: reboot immediately Format: <timeout> + panic_on_warn panic() instead of WARN(). Useful to cause kdump + on a WARN(). + crash_kexec_post_notifiers Run kdump after running panic-notifiers and dumping kmsg. This only for the users who doubt kdump always @@ -2940,6 +2955,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted. quiescent states. Units are jiffies, minimum value is one, and maximum value is HZ. + rcutree.kthread_prio= [KNL,BOOT] + Set the SCHED_FIFO priority of the RCU + per-CPU kthreads (rcuc/N). This value is also + used for the priority of the RCU boost threads + (rcub/N). Valid values are 1-99 and the default + is 1 (the least-favored priority). + rcutree.rcu_nocb_leader_stride= [KNL] Set the number of NOCB kthread groups, which defaults to the square root of the number of @@ -3089,6 +3111,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. messages. Disable with a value less than or equal to zero. + rcupdate.rcu_self_test= [KNL] + Run the RCU early boot self tests + + rcupdate.rcu_self_test_bh= [KNL] + Run the RCU bh early boot self tests + + rcupdate.rcu_self_test_sched= [KNL] + Run the RCU sched early boot self tests + rdinit= [KNL] Format: <full_path> Run specified binary instead of /init from the ramdisk, @@ -3501,7 +3532,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. are saved. trace_buf_size=nn[KMG] - [FTRACE] will set tracing buffer size. + [FTRACE] will set tracing buffer size on each cpu. trace_event=[event-list] [FTRACE] Set and start specified trace events in order |