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| author | Thomas Gleixner <tglx@linutronix.de> | 2011-12-14 00:03:49 (GMT) |
|---|---|---|
| committer | Emil Medve <Emilian.Medve@Freescale.com> | 2013-05-26 07:14:03 (GMT) |
| commit | 7abc197e3fe79cc2ddcb11b78cab925287d812f3 (patch) | |
| tree | 0b7ef7f4ad244327483eb7a3b198b8c054f458d8 | |
| parent | 488a04215e10aedfab5d6aefba2a13eb3729062e (diff) | |
| download | linux-fsl-qoriq-7abc197e3fe79cc2ddcb11b78cab925287d812f3.tar.xz | |
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 8b866b2..989e191 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -775,7 +775,7 @@ config IOMMU_HELPER config MAXSMP bool "Enable Maximum number of SMP Processors and NUMA Nodes" depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL - 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 75cdb77..7669d65 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 |