# git rev-parse -q --verify a00196a272161338d4b1d66ec69e3d57c6b280e0^{commit} a00196a272161338d4b1d66ec69e3d57c6b280e0 already have revision, skipping fetch # git checkout -q -f -B kisskb a00196a272161338d4b1d66ec69e3d57c6b280e0 # git clean -qxdf # < git log -1 # commit a00196a272161338d4b1d66ec69e3d57c6b280e0 # Author: Nicholas Piggin # Date: Fri Jun 7 13:56:36 2019 +1000 # # powerpc/64s: __find_linux_pte() synchronization vs pmdp_invalidate() # # The change to pmdp_invalidate() to mark the pmd with _PAGE_INVALID # broke the synchronisation against lock free lookups, # __find_linux_pte()'s pmd_none() check no longer returns true for such # cases. # # Fix this by adding a check for this condition as well. # # Fixes: da7ad366b497 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit") # Cc: stable@vger.kernel.org # v4.20+ # Suggested-by: Aneesh Kumar K.V # Signed-off-by: Nicholas Piggin # Reviewed-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 a00196a272161338d4b1d66ec69e3d57c6b280e0 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc83xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc83xx_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc83xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here int oldval, ret; ^ INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x651250) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x661968) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3244156 Bytes = 3168.12 KiB = 3.09 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3274040 Bytes = 3197.30 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3273920 Bytes = 3197.19 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3273132 Bytes = 3196.42 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3273991 Bytes = 3197.26 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3273687 Bytes = 3196.96 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Image Name: Linux-5.2.0-rc2-ga00196a27216 Created: Fri Jun 7 20:11:23 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3274089 Bytes = 3197.35 KiB = 3.12 MiB Load Address: 00700000 Entry Point: 00700294 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc83xx_defconfig_powerpc-gcc5 # Build took: 0:00:27.695816