diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-12-14 01:03:49 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@rostedt.homelinux.com> | 2013-12-03 21:13:38 -0500 |
| commit | 84eb315bc39fea20fc31d1c69794dbc00510039a (patch) | |
| tree | c494f38ee56acca66768c3f314d69b62626db82c | |
| parent | 41aea7c83756edbd007f105ecd5d557de636aead (diff) | |
cpumask: Disable CONFIG_CPUMASK_OFFSTACK for RT
We can't deal with the cpumask allocations which happen in atomic
context (see arch/x86/kernel/apic/io_apic.c) on RT right now.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/Kconfig | 2 | ||||
| -rw-r--r-- | lib/Kconfig | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 16dfa9c255fe..3168f4f0bb09 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -799,7 +799,7 @@ config IOMMU_HELPER config MAXSMP bool "Enable Maximum number of SMP Processors and NUMA Nodes" depends on X86_64 && SMP && DEBUG_KERNEL - select CPUMASK_OFFSTACK + select CPUMASK_OFFSTACK if !PREEMPT_RT_FULL ---help--- Enable maximum number of CPUS and NUMA Nodes for this architecture. If unsure, say N. diff --git a/lib/Kconfig b/lib/Kconfig index fe01d418b09a..8bc306809d55 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -315,6 +315,7 @@ config CHECK_SIGNATURE config CPUMASK_OFFSTACK bool "Force CPU masks off stack" if DEBUG_PER_CPU_MAPS + depends on !PREEMPT_RT_FULL help Use dynamic allocation for cpumask_var_t, instead of putting them on the stack. This is a bit more expensive, but avoids |