linux-stable/arch/x86/mm
Roland Dreier e23a8b6a8f x86: Reduce verbosity of "PAT enabled" kernel message
On modern systems, the kernel prints the message

    x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106

once for every CPU.

This gets kind of ridiculous on huge systems; for example, on a
64-thread system I was lucky enough to get:

    dmesg| grep 'PAT enabled' | wc
         64     704    5174

There is already a BUG() if non-boot CPUs have PAT capabilities
that don't match the boot CPU, so just print the message on the
boot CPU. (I kept the print after the wrmsrl() that enables PAT,
so that the log output continues to mean that the system survived
enabling PAT on the boot CPU)

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
LKML-Reference: <adavdj92sso.fsf@cisco.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-09-24 11:35:19 +02:00
..
kmemcheck includecheck fix: x86, shadow.c 2009-09-20 16:00:38 +05:30
dump_pagetables.c x86: remove (null) in /sys kernel_page_tables 2009-04-14 11:50:22 +02:00
extable.c x86: uaccess: introduce try and catch framework 2009-01-23 17:17:36 -08:00
fault.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-14 07:59:32 -07:00
gup.c Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-06-20 11:29:32 -07:00
highmem_32.c Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2009-09-14 17:43:43 -07:00
hugetlbpage.c x86: ignore VM_LOCKED when determining if hugetlb-backed page tables can be shared or not 2009-05-29 08:40:03 -07:00
init.c x86: split NX setup into separate file to limit unstack-protected code 2009-09-21 13:56:58 -07:00
init_32.c Merge commit 'linus/master' into HEAD 2009-06-15 15:50:49 +02:00
init_64.c x86: Fix an incorrect argument of reserve_bootmem() 2009-08-24 20:22:55 +02:00
iomap_32.c x86, pat: Add PAT reserve free to io_mapping* APIs 2009-08-26 15:41:16 -07:00
ioremap.c Merge branch 'x86-pat-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-15 09:19:38 -07:00
k8topology_64.c x86: k8 numa register active regions later 2009-01-06 13:21:21 +01:00
kmmio.c Merge branch 'linus' into tracing/core 2009-05-07 11:17:34 +02:00
Makefile x86: split NX setup into separate file to limit unstack-protected code 2009-09-21 13:56:58 -07:00
memtest.c x86: memtest: use pointers of equal type for comparison 2009-06-11 16:26:35 +02:00
mmap.c x86: Increase MIN_GAP to include randomized stack 2009-09-10 17:00:12 -07:00
mmio-mod.c tracing: x86, mmiotrace: only register for die notifier when tracer active 2009-04-29 11:33:34 +02:00
numa.c cpumask: convert node_to_cpumask_map[] to cpumask_var_t 2009-03-13 14:35:31 +01:00
numa_32.c x86: mm/numa_32.c calculate_numa_remap_pages should use __init 2009-04-17 22:43:13 +02:00
numa_64.c x86, mm: Fix node_possible_map logic 2009-05-18 09:21:04 +02:00
pageattr-test.c x86: make sure the CPA test code's use of _PAGE_UNUSED1 is obvious 2008-09-05 17:09:57 +02:00
pageattr.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-09-15 09:39:44 -07:00
pat.c x86: Reduce verbosity of "PAT enabled" kernel message 2009-09-24 11:35:19 +02:00
pf_in.c x86: fix mmiotrace 8-bit register decoding 2008-10-14 10:33:50 +02:00
pf_in.h x86 mmiotrace: move files into arch/x86/mm/. 2008-05-24 11:25:37 +02:00
pgtable.c x86, 32-bit: Fix double accounting in reserve_top_address() 2009-08-04 16:27:29 +02:00
pgtable_32.c x86/32: no need to use set_pte_present in set_pte_vaddr 2009-03-19 14:04:18 +01:00
physaddr.c x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
physaddr.h x86: split __phys_addr out into separate file 2009-09-10 11:48:55 -07:00
setup_nx.c x86: split NX setup into separate file to limit unstack-protected code 2009-09-21 13:56:58 -07:00
srat_32.c x86: Decrease the level of some NUMA messages to KERN_DEBUG 2009-09-06 06:32:23 +02:00
srat_64.c x86-64: Fix bad_srat() to clear all state 2009-07-21 15:20:01 -07:00
testmmiotrace.c x86: add far read test to testmmiotrace 2009-03-02 10:20:35 +01:00
tlb.c x86: don't call '->send_IPI_mask()' with an empty mask 2009-08-21 09:48:10 -07:00