Re: mmots build error (2)

From: Dmitry Vyukov
Date: Thu Dec 28 2017 - 02:35:21 EST

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In reply to: syzbot: "mmots build error (2)"
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On Thu, Dec 28, 2017 at 8:32 AM, syzbot
<syzbot+29c5e7133d56d150a59e@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Hello,
>
> syzkaller hit the following crash on
> 253f36c7c1aee654871b4f0c5e16ee6c396bff9a
> git://git.cmpxchg.org/linux-mmots.git/master
> compiler: gcc (GCC) 7.1.1 20170620
> .config is attached
> Raw console output is attached.
> Unfortunately, I don't have any reproducer for this bug yet.
>
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: <syzbot+29c5e7133d56d150a59e@xxxxxxxxxxxxxxxxxxxxxxxxx>
> It will help syzbot understand when the bug is fixed. See footer for
> details.
> If you forward the report, please keep this part and the footer.

+mm
the build is broken as:

failed to run /usr/bin/make [make bzImage -j 32
CC=/syzkaller/gcc/bin/gcc]: exit status 2
scripts/kconfig/conf --silentoldconfig Kconfig
CHK include/config/kernel.release
CHK include/generated/uapi/linux/version.h
UPD include/config/kernel.release
CHK include/generated/utsrelease.h
UPD include/generated/utsrelease.h
CC kernel/bounds.s
CHK include/generated/timeconst.h
CC scripts/mod/empty.o
CC scripts/mod/devicetable-offsets.s
MKELF scripts/mod/elfconfig.h
HOSTCC scripts/mod/modpost.o
HOSTCC scripts/mod/sumversion.o
CHK scripts/mod/devicetable-offsets.h
HOSTCC scripts/mod/file2alias.o
HOSTLD scripts/mod/modpost
CHK include/generated/bounds.h
CC arch/x86/kernel/asm-offsets.s
In file included from ./arch/x86/include/asm/pgtable_types.h:250:0,
from ./arch/x86/include/asm/paravirt_types.h:45,
from ./arch/x86/include/asm/ptrace.h:92,
from ./arch/x86/include/asm/math_emu.h:5,
from ./arch/x86/include/asm/processor.h:12,
from ./arch/x86/include/asm/cpufeature.h:5,
from ./arch/x86/include/asm/thread_info.h:53,
from ./include/linux/thread_info.h:38,
from ./arch/x86/include/asm/preempt.h:7,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/pgtable_64_types.h:97:1: error: version control
conflict marker in file
<<<<<<< HEAD
^~~~~~~
In file included from ./arch/x86/include/asm/paravirt_types.h:45:0,
from ./arch/x86/include/asm/ptrace.h:92,
from ./arch/x86/include/asm/math_emu.h:5,
from ./arch/x86/include/asm/processor.h:12,
from ./arch/x86/include/asm/cpufeature.h:5,
from ./arch/x86/include/asm/thread_info.h:53,
from ./include/linux/thread_info.h:38,
from ./arch/x86/include/asm/preempt.h:7,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/pgtable_types.h:266:47: warning: data
definition has no type or storage class
typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
^~~~~~~~
./arch/x86/include/asm/pgtable_types.h:266:47: error: type defaults to
âintâ in declaration of âpgprot_tâ [-Werror=implicit-int]
In file included from ./arch/x86/include/asm/paravirt_types.h:45:0,
from ./arch/x86/include/asm/ptrace.h:92,
from ./arch/x86/include/asm/math_emu.h:5,
from ./arch/x86/include/asm/processor.h:12,
from ./arch/x86/include/asm/cpufeature.h:5,
from ./arch/x86/include/asm/thread_info.h:53,
from ./include/linux/thread_info.h:38,
from ./arch/x86/include/asm/preempt.h:7,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/pgtable_types.h:441:24: error: expected â=â,
â,â, â;â, âasmâ or â__attribute__â before âcachemode2pgprotâ
static inline pgprot_t cachemode2pgprot(enum page_cache_mode pcm)
^~~~~~~~~~~~~~~~
./arch/x86/include/asm/pgtable_types.h:445:53: error: expected
declaration specifiers or â...â before âpgprot_tâ
static inline enum page_cache_mode pgprot2cachemode(pgprot_t pgprot)
^~~~~~~~
./arch/x86/include/asm/pgtable_types.h:454:24: error: expected â=â,
â,â, â;â, âasmâ or â__attribute__â before âpgprot_4k_2_largeâ
static inline pgprot_t pgprot_4k_2_large(pgprot_t pgprot)
^~~~~~~~~~~~~~~~~
./arch/x86/include/asm/pgtable_types.h:463:24: error: expected â=â,
â,â, â;â, âasmâ or â__attribute__â before âpgprot_large_2_4kâ
static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot)
^~~~~~~~~~~~~~~~~
./arch/x86/include/asm/pgtable_types.h:481:29: error: expected â=â,
â,â, â;â, âasmâ or â__attribute__â before âpgprot_writecombineâ
#define pgprot_writecombine pgprot_writecombine
^
./arch/x86/include/asm/pgtable_types.h:482:17: note: in expansion of
macro âpgprot_writecombineâ
extern pgprot_t pgprot_writecombine(pgprot_t prot);
^~~~~~~~~~~~~~~~~~~
./arch/x86/include/asm/pgtable_types.h:484:29: error: expected â=â,
â,â, â;â, âasmâ or â__attribute__â before âpgprot_writethroughâ
#define pgprot_writethrough pgprot_writethrough
^
./arch/x86/include/asm/pgtable_types.h:485:17: note: in expansion of
macro âpgprot_writethroughâ
extern pgprot_t pgprot_writethrough(pgprot_t prot);
^~~~~~~~~~~~~~~~~~~
./arch/x86/include/asm/pgtable_types.h:492:1: error: unknown type name
âpgprot_tâ; did you mean âpgprotval_tâ?
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
^~~~~~~~
pgprotval_t
./arch/x86/include/asm/pgtable_types.h:493:51: error: expected
declaration specifiers or â...â before âpgprot_tâ
unsigned long size, pgprot_t vma_prot);
^~~~~~~~
In file included from ./arch/x86/include/asm/ptrace.h:92:0,
from ./arch/x86/include/asm/math_emu.h:5,
from ./arch/x86/include/asm/processor.h:12,
from ./arch/x86/include/asm/cpufeature.h:5,
from ./arch/x86/include/asm/thread_info.h:53,
from ./include/linux/thread_info.h:38,
from ./arch/x86/include/asm/preempt.h:7,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/paravirt_types.h:296:25: error: expected
declaration specifiers or â...â before âpgprot_tâ
phys_addr_t phys, pgprot_t flags);
^~~~~~~~
./arch/x86/include/asm/paravirt_types.h:297:1: warning: no semicolon
at end of struct or union
} __no_randomize_layout;
^
In file included from ./arch/x86/include/asm/msr.h:236:0,
from ./arch/x86/include/asm/processor.h:21,
from ./arch/x86/include/asm/cpufeature.h:5,
from ./arch/x86/include/asm/thread_info.h:53,
from ./include/linux/thread_info.h:38,
from ./arch/x86/include/asm/preempt.h:7,
from ./include/linux/preempt.h:81,
from ./include/linux/spinlock.h:51,
from ./include/linux/mmzone.h:8,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/paravirt.h:658:23: error: expected declaration
specifiers or â...â before âpgprot_tâ
phys_addr_t phys, pgprot_t flags)
^~~~~~~~
In file included from ./include/asm-generic/io.h:767:0,
from ./arch/x86/include/asm/io.h:401,
from ./arch/x86/include/asm/realmode.h:15,
from ./arch/x86/include/asm/acpi.h:33,
from ./arch/x86/include/asm/fixmap.h:19,
from ./arch/x86/include/asm/apic.h:10,
from ./arch/x86/include/asm/smp.h:13,
from ./arch/x86/include/asm/mmzone_64.h:11,
from ./arch/x86/include/asm/mmzone.h:5,
from ./include/linux/mmzone.h:912,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./include/linux/vmalloc.h:60:15: error: expected declaration
specifiers or â...â before âpgprot_tâ
int node, pgprot_t prot);
^~~~~~~~
./include/linux/vmalloc.h:79:60: error: expected declaration
specifiers or â...â before âpgprot_tâ
extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
^~~~~~~~
./include/linux/vmalloc.h:82:4: error: expected declaration specifiers
or â...â before âpgprot_tâ
pgprot_t prot, unsigned long vm_flags, int node,
^~~~~~~~
./include/linux/vmalloc.h:100:25: error: expected declaration
specifiers or â...â before âpgprot_tâ
unsigned long flags, pgprot_t prot);
^~~~~~~~
./include/linux/vmalloc.h:137:48: error: expected declaration
specifiers or â...â before âpgprot_tâ
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
^~~~~~~~
./include/linux/vmalloc.h:141:9: error: expected declaration
specifiers or â...â before âpgprot_tâ
pgprot_t prot, struct page **pages);
^~~~~~~~
In file included from ./arch/x86/include/asm/apic.h:10:0,
from ./arch/x86/include/asm/smp.h:13,
from ./arch/x86/include/asm/mmzone_64.h:11,
from ./arch/x86/include/asm/mmzone.h:5,
from ./include/linux/mmzone.h:912,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/fixmap.h:151:28: error: expected declaration
specifiers or â...â before âpgprot_tâ
phys_addr_t phys, pgprot_t flags);
^~~~~~~~
In file included from ./arch/x86/include/asm/apic.h:10:0,
from ./arch/x86/include/asm/smp.h:13,
from ./arch/x86/include/asm/mmzone_64.h:11,
from ./arch/x86/include/asm/mmzone.h:5,
from ./include/linux/mmzone.h:912,
from ./include/linux/gfp.h:6,
from ./include/linux/slab.h:15,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/fixmap.h:187:22: error: expected declaration
specifiers or â...â before âpgprot_tâ
phys_addr_t phys, pgprot_t flags);
^~~~~~~~
In file included from ./include/linux/kasan.h:17:0,
from ./include/linux/slab.h:129,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./arch/x86/include/asm/pgtable.h:519:42: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pgprotval_t massage_pgprot(pgprot_t pgprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:529:52: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:535:52: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:541:52: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pud_t pfn_pud(unsigned long page_nr, pgprot_t pgprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:547:43: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:561:43: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
^~~~~~~~
./arch/x86/include/asm/pgtable.h:572:23: error: expected â=â, â,â,
â;â, âasmâ or â__attribute__â before âpgprot_modifyâ
#define pgprot_modify pgprot_modify
^
./arch/x86/include/asm/pgtable.h:573:24: note: in expansion of macro
âpgprot_modifyâ
static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
^~~~~~~~~~~~~
In file included from ./arch/x86/include/asm/pgtable.h:630:0,
from ./include/linux/kasan.h:17,
from ./include/linux/slab.h:129,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./include/linux/mm_types.h:297:2: error: expected
specifier-qualifier-list before âpgprot_tâ
pgprot_t vm_page_prot; /* Access permissions of this VMA. */
^~~~~~~~
In file included from ./arch/x86/include/asm/pgtable.h:1292:0,
from ./include/linux/kasan.h:17,
from ./include/linux/slab.h:129,
from ./include/linux/crypto.h:24,
from arch/x86/kernel/asm-offsets.c:9:
./include/asm-generic/pgtable.h:773:56: error: expected declaration
specifiers or â...â before âpgprot_tâ
extern int track_pfn_remap(struct vm_area_struct *vma, pgprot_t *prot,
^~~~~~~~
./include/asm-generic/pgtable.h:776:58: error: expected declaration
specifiers or â...â before âpgprot_tâ
extern void track_pfn_insert(struct vm_area_struct *vma, pgprot_t *prot,
^~~~~~~~
./include/asm-generic/pgtable.h:972:62: error: expected declaration
specifiers or â...â before âpgprot_tâ
static inline int p4d_set_huge(p4d_t *p4d, phys_addr_t addr, pgprot_t prot)
^~~~~~~~
./include/asm-generic/pgtable.h:982:48: error: expected declaration
specifiers or â...â before âpgprot_tâ
int pud_set_huge(pud_t *pud, phys_addr_t addr, pgprot_t prot);
^~~~~~~~
./include/asm-generic/pgtable.h:983:48: error: expected declaration
specifiers or â...â before âpgprot_tâ
int pmd_set_huge(pmd_t *pmd, phys_addr_t addr, pgprot_t prot);
^~~~~~~~
./include/asm-generic/pgtable.h:1034:24: error: expected declaration
specifiers or â...â before âpgprot_tâ
unsigned long size, pgprot_t *vma_prot);
^~~~~~~~
In file included from ./include/linux/irq.h:25:0,
from ./arch/x86/include/asm/hardirq.h:6,
from ./include/linux/hardirq.h:9,
from arch/x86/kernel/asm-offsets.c:12:
./include/linux/io.h:37:33: error: expected declaration specifiers or
â...â before âpgprot_tâ
phys_addr_t phys_addr, pgprot_t prot);
^~~~~~~~
In file included from ./include/linux/cgroup.h:17:0,
from ./include/linux/memcontrol.h:22,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/fs.h: In function âvma_is_daxâ:
./include/linux/fs.h:3200:12: error: âstruct vm_area_structâ has no
member named âvm_fileâ
return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);
^~
In file included from ./include/linux/cgroup.h:17:0,
from ./include/linux/memcontrol.h:22,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/fs.h:3200:35: error: âstruct vm_area_structâ has no
member named âvm_fileâ
return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);
^
./include/linux/fs.h:1901:26: note: in definition of macro âIS_DAXâ
#define IS_DAX(inode) ((inode)->i_flags & S_DAX)
^~~~~
In file included from ./include/linux/cgroup.h:17:0,
from ./include/linux/memcontrol.h:22,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/fs.h: In function âvma_is_fsdaxâ:
./include/linux/fs.h:3207:10: error: âstruct vm_area_structâ has no
member named âvm_fileâ
if (!vma->vm_file)
^~
./include/linux/fs.h:3211:24: error: âstruct vm_area_structâ has no
member named âvm_fileâ
inode = file_inode(vma->vm_file);
^~
In file included from ./include/linux/memcontrol.h:29:0,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/mm.h: At top level:
./include/linux/mm.h:294:17: error: expected â=â, â,â, â;â, âasmâ or
â__attribute__â before âprotection_mapâ
extern pgprot_t protection_map[16];
^~~~~~~~~~~~~~
In file included from ./include/linux/mm.h:463:0,
from ./include/linux/memcontrol.h:29,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/huge_mm.h:47:24: error: expected declaration
specifiers or â...â before âpgprot_tâ
unsigned long addr, pgprot_t newprot,
^~~~~~~~
./include/linux/huge_mm.h: In function âtransparent_hugepage_enabledâ:
./include/linux/huge_mm.h:97:11: error: âstruct vm_area_structâ has no
member named âvm_flagsâ; did you mean âvm_startâ?
if (vma->vm_flags & VM_NOHUGEPAGE)
^~~~~~~~
vm_start
./include/linux/huge_mm.h:114:18: error: âstruct vm_area_structâ has
no member named âvm_flagsâ; did you mean âvm_startâ?
return !!(vma->vm_flags & VM_HUGEPAGE);
^~~~~~~~
vm_start
In file included from ./arch/x86/include/asm/atomic.h:5:0,
from ./include/linux/atomic.h:5,
from ./include/linux/crypto.h:20,
from arch/x86/kernel/asm-offsets.c:9:
./include/linux/mm.h: In function âmaybe_mkwriteâ:
./include/linux/mm.h:683:18: error: âstruct vm_area_structâ has no
member named âvm_flagsâ; did you mean âvm_startâ?
if (likely(vma->vm_flags & VM_WRITE))
^
./include/linux/compiler.h:76:40: note: in definition of macro âlikelyâ
# define likely(x) __builtin_expect(!!(x), 1)
^
In file included from ./include/linux/memcontrol.h:29:0,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/mm.h: In function âvma_is_anonymousâ:
./include/linux/mm.h:1479:15: error: âstruct vm_area_structâ has no
member named âvm_opsâ; did you mean âvm_endâ?
return !vma->vm_ops;
^~~~~~
vm_end
./include/linux/mm.h: At top level:
./include/linux/mm.h:1499:29: error: expected declaration specifiers
or â...â before âpgprot_tâ
unsigned long end, pgprot_t newprot,
^~~~~~~~
./include/linux/mm.h:1618:55: error: expected declaration specifiers
or â...â before âpgprot_tâ
int vma_wants_writenotify(struct vm_area_struct *vma, pgprot_t vm_page_prot);
^~~~~~~~
In file included from ./include/linux/memcontrol.h:29:0,
from ./include/linux/swap.h:9,
from ./include/linux/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:13:
./include/linux/mm.h: In function âvm_start_gapâ:
./include/linux/mm.h:2347:11: error: âstruct vm_area_structâ has no
member named âvm_flagsâ; did you mean âvm_startâ?
if (vma->vm_flags & VM_GROWSDOWN) {
^~~~~~~~
vm_start
./include/linux/mm.h: In function âvm_end_gapâ:
./include/linux/mm.h:2359:11: error: âstruct vm_area_structâ has no
member named âvm_flagsâ; did you mean âvm_startâ?
if (vma->vm_flags & VM_GROWSUP) {
^~~~~~~~
vm_start
./include/linux/mm.h: At top level:
./include/linux/mm.h:2385:1: error: unknown type name âpgprot_tâ; did
you mean âpgprotval_tâ?
pgprot_t vm_get_page_prot(unsigned long vm_flags);
^~~~~~~~
pgprotval_t
./include/linux/mm.h:2405:43: error: expected declaration specifiers
or â...â before âpgprot_tâ
unsigned long pfn, unsigned long size, pgprot_t);
^~~~~~~~
./include/linux/mm.h:2410:23: error: expected declaration specifiers
or â...â before âpgprot_tâ
unsigned long pfn, pgprot_t pgprot);
^~~~~~~~
In file included from ./arch/x86/include/asm/desc.h:10:0,
from ./arch/x86/include/asm/suspend_64.h:10,
from ./arch/x86/include/asm/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:19:
./arch/x86/include/asm/cpu_entry_area.h:8:1: error: version control
conflict marker in file
<<<<<<< HEAD
^~~~~~~
In file included from ./arch/x86/include/asm/cpu_entry_area.h:10:0,
from ./arch/x86/include/asm/desc.h:10,
from ./arch/x86/include/asm/suspend_64.h:10,
from ./arch/x86/include/asm/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:19:
./arch/x86/include/asm/intel_ds.h:27:1: warning: empty declaration
} __aligned(PAGE_SIZE);
^
In file included from ./arch/x86/include/asm/desc.h:10:0,
from ./arch/x86/include/asm/suspend_64.h:10,
from ./arch/x86/include/asm/suspend.h:5,
from arch/x86/kernel/asm-offsets.c:19:
./arch/x86/include/asm/cpu_entry_area.h:11:1: error: version control
conflict marker in file
>>>>>>> linux-next/akpm-base
^~~~~~~
./arch/x86/include/asm/cpu_entry_area.h:70:58: error: expected
declaration specifiers or â...â before âpgprot_tâ
extern void cea_set_pte(void *cea_vaddr, phys_addr_t pa, pgprot_t flags);
^~~~~~~~
./arch/x86/include/asm/cpu_entry_area.h: In function âcpu_entry_stackâ:
./arch/x86/include/asm/cpu_entry_area.h:84:33: error: dereferencing
pointer to incomplete type âstruct cpu_entry_areaâ
return &get_cpu_entry_area(cpu)->entry_stack_page.stack;
^~
In file included from arch/x86/kernel/asm-offsets.c:20:0:
./arch/x86/include/asm/tlbflush.h: At top level:
./arch/x86/include/asm/tlbflush.h:13:1: error: version control
conflict marker in file
<<<<<<< HEAD
^~~~~~~
./arch/x86/include/asm/tlbflush.h:28:1: error: version control
conflict marker in file
=======
^~~~~~~
In file included from arch/x86/kernel/asm-offsets.c:20:0:
./arch/x86/include/asm/tlbflush.h:63:1: error: version control
conflict marker in file
>>>>>>> linux-next/akpm-base
^~~~~~~
./arch/x86/include/asm/tlbflush.h:92:1: warning: "/*" within comment [-Wcomment]
/*

./arch/x86/include/asm/tlbflush.h:97:0: warning: "MAX_ASID_AVAILABLE" redefined
#define MAX_ASID_AVAILABLE ((1 << CR3_AVAIL_PCID_BITS) - 2)

./arch/x86/include/asm/tlbflush.h:77:0: note: this is the location of
the previous definition
#define MAX_ASID_AVAILABLE ((1 << CR3_AVAIL_ASID_BITS) - 2)

cc1: some warnings being treated as errors
Kbuild:56: recipe for target 'arch/x86/kernel/asm-offsets.s' failed
make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
Makefile:1090: recipe for target 'prepare0' failed
make: *** [prepare0] Error 2

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