# git rev-parse -q --verify ba422731316dde1e22dcc84b83c7349dc0ce1c3c^{commit}
ba422731316dde1e22dcc84b83c7349dc0ce1c3c
already have revision, skipping fetch
# git checkout -q -f -B kisskb ba422731316dde1e22dcc84b83c7349dc0ce1c3c
# git clean -qxdf
# < git log -1
# commit ba422731316dde1e22dcc84b83c7349dc0ce1c3c
# Author: Sean Christopherson <sean.j.christopherson@intel.com>
# Date:   Wed Jan 9 16:51:17 2019 -0800
# 
#     mm/mmu_notifier: mm/rmap.c: Fix a mmu_notifier range bug in try_to_unmap_one
#     
#     The conversion to use a structure for mmu_notifier_invalidate_range_*()
#     unintentionally changed the usage in try_to_unmap_one() to init the
#     'struct mmu_notifier_range' with vma->vm_start instead of @address,
#     i.e. it invalidates the wrong address range.  Revert to the correct
#     address range.
#     
#     Manifests as KVM use-after-free WARNINGs and subsequent "BUG: Bad page
#     state in process X" errors when reclaiming from a KVM guest due to KVM
#     removing the wrong pages from its own mappings.
#     
#     Reported-by: leozinho29_eu@hotmail.com
#     Reported-by: Mike Galbraith <efault@gmx.de>
#     Reported-and-tested-by: Adam Borowski <kilobyte@angband.pl>
#     Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
#     Reviewed-by: Pankaj gupta <pagupta@redhat.com>
#     Cc: Christian König <christian.koenig@amd.com>
#     Cc: Jan Kara <jack@suse.cz>
#     Cc: Matthew Wilcox <mawilcox@microsoft.com>
#     Cc: Ross Zwisler <zwisler@kernel.org>
#     Cc: Dan Williams <dan.j.williams@intel.com>
#     Cc: Paolo Bonzini <pbonzini@redhat.com>
#     Cc: Radim Krčmář <rkrcmar@redhat.com>
#     Cc: Michal Hocko <mhocko@kernel.org>
#     Cc: Felix Kuehling <felix.kuehling@amd.com>
#     Cc: Ralph Campbell <rcampbell@nvidia.com>
#     Cc: John Hubbard <jhubbard@nvidia.com>
#     Cc: Andrew Morton <akpm@linux-foundation.org>
#     Fixes: ac46d4f3c432 ("mm/mmu_notifier: use structure for invalidate_range_start/end calls v2")
#     Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 ba422731316dde1e22dcc84b83c7349dc0ce1c3c
# < make -s -j 48 ARCH=sh O=/kisskb/build/linus_polaris_defconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  polaris_defconfig
# make -s -j 48 ARCH=sh O=/kisskb/build/linus_polaris_defconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1318:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1321:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1324:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1327:2: warning: #warning syscall statx not implemented [-Wcpp]
<stdin>:1333:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1336:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/cpu/sh3/../../entry-common.S: Assembler messages:
/kisskb/src/arch/sh/kernel/cpu/sh3/../../entry-common.S:385: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh3/../../entry-common.S:388: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
In file included from /kisskb/src/arch/sh/math-emu/math.c:23:0:
/kisskb/src/include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from /kisskb/src/arch/sh/math-emu/math.c:24:0:
/kisskb/src/include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
/kisskb/src/arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
/kisskb/src/include/linux/kernel.h:66:0: note: this is the location of the previous definition
/kisskb/src/arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
/kisskb/src/include/linux/kernel.h:65:0: note: this is the location of the previous definition
/kisskb/src/arch/sh/math-emu/math.c: In function 'ffloat':
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c: In function 'ftrc':
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c: At top level:
/kisskb/src/arch/sh/math-emu/math.c:505:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:133:34: warning: 'levelspread[<U28c0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U28c0>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:339:21: note: 'pdeo' was declared here
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r8':
/kisskb/src/drivers/sh/clk/cpg.c:41:2: warning: passing argument 1 of 'ioread8' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:29:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r16':
/kisskb/src/drivers/sh/clk/cpg.c:46:2: warning: passing argument 1 of 'ioread16' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:30:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r32':
/kisskb/src/drivers/sh/clk/cpg.c:51:2: warning: passing argument 1 of 'ioread32' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:32:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c:885:14: note: 'extra_uref' was declared here
  Kernel: arch/sh/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_polaris_defconfig_sh4
# Build took: 0:00:44.604359