AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-02-18 01:36:41 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
68fb18aacb
linux_dsm_epyc7002/arch/powerpc/mm
History
Srivatsa S. Bhat 68fb18aacb powerpc: Add debug checks to catch invalid cpu-to-node mappings 
There have been some weird bugs in the past where the kernel tried to associate
threads of the same core to different NUMA nodes, and things went haywire after
that point (as expected).

But unfortunately, root-causing such issues have been quite challenging, due to
the lack of appropriate debug checks in the kernel. These bugs usually lead to
some odd soft-lockups in the scheduler's build-sched-domain code in the CPU
hotplug path, which makes it very hard to trace it back to the incorrect
cpu-to-node mappings.

So add appropriate debug checks to catch such invalid cpu-to-node mappings
as early as possible.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-15 13:58:40 +11:00
..
40x_mmu.c
44x_mmu.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
dma-noncoherent.c mm/arch: use __free_reserved_page() to simplify the code 2013-11-13 12:09:03 +09:00
fault.c arch: mm: pass userspace fault flag to generic fault handler 2013-09-12 15:38:01 -07:00
fsl_booke_mmu.c powerpc/fsl-booke: Fixup calc_cam_sz to support MMU v2 2012-03-15 12:12:19 -05:00
gup.c powerpc: Fix __get_user_pages_fast() irq handling 2013-11-21 10:33:37 +11:00
hash_low_32.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
hash_low_64.S powerpc/mm: Free up _PAGE_COHERENCE for numa fault use later 2013-12-09 11:40:28 +11:00
hash_native_64.c powerpc: Book 3S MMU little endian support 2013-10-11 16:48:26 +11:00
hash_utils_64.c powerpc/mm: Free up _PAGE_COHERENCE for numa fault use later 2013-12-09 11:40:28 +11:00
highmem.c
hugepage-hash64.c powerpc/mm: Free up _PAGE_COHERENCE for numa fault use later 2013-12-09 11:40:28 +11:00
hugetlbpage-book3e.c powerpc/booke: Only check for hugetlb in flush if vma != NULL 2013-11-22 16:57:29 -06:00
hugetlbpage-hash64.c powerpc/mm: Free up _PAGE_COHERENCE for numa fault use later 2013-12-09 11:40:28 +11:00
hugetlbpage.c mm: remove obsolete comments about page table lock 2013-11-13 12:09:03 +09:00
icswx_pid.c powerpc: Split ICSWX ACOP and PID processing 2011-11-25 14:11:27 +11:00
icswx.c powerpc: Fix typo "CONFIG_ICSWX_PID" 2013-04-18 13:03:54 +10:00
icswx.h powerpc/icswx: Fix race condition with IPI setting ACOP 2012-03-07 17:06:09 +11:00
init_32.c powerpc/8xx: Fixing memory init issue with CONFIG_PIN_TLB 2013-10-28 21:11:22 -05:00
init_64.c powerpc: Prepare to support kernel handling of IOMMU map/unmap 2013-10-11 17:24:39 +11:00
Makefile powerpc/THP: Add code to handle HPTE faults for hugepages 2013-06-21 16:01:56 +10:00
mem.c powerpc: Fix memory hotplug with sparse vmemmap 2013-10-03 17:21:38 +10:00
mmap.c mm: remove free_area_cache 2013-07-10 18:11:34 -07:00
mmu_context_hash32.c
mmu_context_hash64.c powerpc: Reduce PTE table memory wastage 2013-04-30 16:00:07 +10:00
mmu_context_nohash.c powerpc: Delete __cpuinit usage from all users 2013-07-01 11:10:36 +10:00
mmu_decl.h
numa.c powerpc: Add debug checks to catch invalid cpu-to-node mappings 2014-01-15 13:58:40 +11:00
pgtable_32.c powerpc: handle pgtable_page_ctor() fail 2013-11-15 09:32:18 +09:00
pgtable_64.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
pgtable.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
ppc_mmu_32.c
slb_low.S powerpc: Rename USER_ESID_BITS* to ESID_BITS* 2013-03-17 12:45:44 +11:00
slb.c powerpc: Fix little endian lppaca, slb_shadow and dtl_entry 2013-08-14 15:33:35 +10:00
slice.c powerpc: ppc64 address space capped at 32TB, mmap randomisation disabled 2013-11-21 10:33:41 +11:00
stab.c powerpc/mm: Remove uses of abs_to_virt() and virt_to_abs() 2012-09-05 15:19:31 +10:00
subpage-prot.c powerpc: Fix a number of sparse warnings 2013-08-14 11:50:24 +10:00
tlb_hash32.c
tlb_hash64.c powerpc: Delete non-required instances of include <linux/init.h> 2014-01-15 13:46:44 +11:00
tlb_low_64e.S powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int 2012-09-05 15:35:52 +10:00
tlb_nohash_low.S powerpc/47x: Use the new ppc-opcode infrastructure 2012-11-15 12:59:24 +11:00
tlb_nohash.c powerpc: Move the patch_exception to a common place 2013-12-02 14:06:54 +11:00