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Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index ec80358a9faf..5d10bc873b37 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -4881,6 +4881,21 @@ rcutorture.verbose= [KNL] Enable additional printk() statements. + rcupdate.android_rcu_boot_end_delay= [KNL] + Minimum time in milliseconds from the start of boot + that must elapse before the boot sequence can be marked + complete from RCU's perspective, after which RCU's + behavior becomes more relaxed. The default value is also + configurable via CONFIG_RCU_BOOT_END_DELAY. + Userspace can also mark the boot as completed + sooner by writing the time in milliseconds, say once + userspace considers the system as booted, to: + /sys/module/rcupdate/parameters/android_rcu_boot_end_delay + Or even just writing a value of 0 to this sysfs node. + The sysfs node can also be used to extend the delay + to be larger than the default, assuming the marking + of boot complete has not yet occurred. + rcupdate.rcu_cpu_stall_ftrace_dump= [KNL] Dump ftrace buffer after reporting RCU CPU stall warning. |