search for: intel_cacheinfo

Just run into an odd DomU crash doing live migration of a 4-VCPU domain (with 3.0.4 but the code looks the same in 2.6.18/unstable to me) - the actual panic is attached at the end of this, but the bottom line is that the code in cache_remove_shared_cpu_map (in arch/i385/kernel/cpu/intel_cacheinfo.c) is attempting to clean up the cache info for a processor that does not yet have this info setup - the code is dereferencing a pointer in the cpuid4_info[] array and looking at the dump I can see that this is NULL. My working theory here is that we attempted the migration waaay early and the ini...

...c to use cpumask_var_t cpumask: fix bug in use cpumask_var_t in irq_desc SGI UV cpumask: use static temp cpumask in flush_tlb x86: cleanup remaining cpumask_t code in mce_amd_64.c x86: cleanup remaining cpumask_t code in microcode_core.c x86: reduce stack usage in init_intel_cacheinfo cpumask: use cpumask_var_t in dcdbas.c cpumask: reduce stack usage in find_lowest_rq Xen: reduce memory required for cpu_evtchn_mask Rusty Russell (5): cpumask: Use topology_core_cpumask()/topology_thread_cpumask() cpumask: convert misc driver functions cpumask:...

...c to use cpumask_var_t cpumask: fix bug in use cpumask_var_t in irq_desc SGI UV cpumask: use static temp cpumask in flush_tlb x86: cleanup remaining cpumask_t code in mce_amd_64.c x86: cleanup remaining cpumask_t code in microcode_core.c x86: reduce stack usage in init_intel_cacheinfo cpumask: use cpumask_var_t in dcdbas.c cpumask: reduce stack usage in find_lowest_rq Xen: reduce memory required for cpu_evtchn_mask Rusty Russell (5): cpumask: Use topology_core_cpumask()/topology_thread_cpumask() cpumask: convert misc driver functions cpumask:...

...== --- clean-start.orig/arch/x86_64/kernel/Makefile +++ clean-start/arch/x86_64/kernel/Makefile @@ -41,6 +41,8 @@ obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PCI) += early-quirks.o +obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-y += topology.o obj-y += intel_cacheinfo.o --

...== --- clean-start.orig/arch/x86_64/kernel/Makefile +++ clean-start/arch/x86_64/kernel/Makefile @@ -41,6 +41,8 @@ obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PCI) += early-quirks.o +obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-y += topology.o obj-y += intel_cacheinfo.o --

...entry-xen.o CC arch/x86_64/kernel/traps-xen.o CC arch/x86_64/kernel/irq-xen.o CC arch/x86_64/kernel/ptrace.o CC arch/x86_64/kernel/../../i386/kernel/alternative.o CC arch/x86_64/kernel/../../i386/kernel/bootflag.o CC arch/x86_64/kernel/../../i386/kernel/cpu/intel_cacheinfo.o CC arch/x86_64/kernel/../../i386/kernel/pci-dma-xen.o CC arch/x86_64/kernel/../../i386/kernel/quirks-xen.o CC arch/x86_64/kernel/../../i386/kernel/time-xen.o CC arch/x86_64/kernel/../../i386/kernel/topology.o LD arch/x86_64/kernel/time.o CC arch/x86_64/ke...

....6.19-quilt.orig/arch/x86_64/kernel/Makefile +++ linux-2.6.19-quilt/arch/x86_64/kernel/Makefile @@ -41,6 +41,8 @@ obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PCI) += early-quirks.o +obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-y += topology.o obj-y += intel_cacheinfo.o Index: linux-2.6.19-quilt/arch/x86_64/kernel/process.c =================================================================== --- linux-2.6.19-quilt.orig/arch/x86_64/kernel/process.c +++ linux-2.6.19-quilt/arch/x86_64/kernel/process.c @@ -334,10 +334,10 @@ void __show_regs(struct pt_regs * regs)...

....6.19-quilt.orig/arch/x86_64/kernel/Makefile +++ linux-2.6.19-quilt/arch/x86_64/kernel/Makefile @@ -41,6 +41,8 @@ obj-$(CONFIG_AUDIT) += audit.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_PCI) += early-quirks.o +obj-$(CONFIG_PARAVIRT) += paravirt.o + obj-y += topology.o obj-y += intel_cacheinfo.o Index: linux-2.6.19-quilt/arch/x86_64/kernel/process.c =================================================================== --- linux-2.6.19-quilt.orig/arch/x86_64/kernel/process.c +++ linux-2.6.19-quilt/arch/x86_64/kernel/process.c @@ -334,10 +334,10 @@ void __show_regs(struct pt_regs * regs)...