# git rev-parse -q --verify 7312bd0c205dc9e6e30128ef9243d7bc8ba1187d^{commit} 7312bd0c205dc9e6e30128ef9243d7bc8ba1187d already have revision, skipping fetch # git checkout -q -f -B kisskb 7312bd0c205dc9e6e30128ef9243d7bc8ba1187d # git clean -qxdf # < git log -1 # commit 7312bd0c205dc9e6e30128ef9243d7bc8ba1187d # Author: Mahesh Salgaonkar # Date: Thu Aug 23 10:26:08 2018 +0530 # # powerpc/mce: Fix SLB rebolting during MCE recovery path. # # With the powerpc next commit e7e81847478b ("powerpc/64s: move machine # check SLB flushing to mm/slb.c"), the SLB error recovery is broken. # The new code now does not add the index value to RB[52-63] that # selects the SLB entry when rebolting, instead it assumes that the # shadow save area already has the index embeded correctly in the esid # field. # # While all valid bolted save areas do contain index value set # correctly, there is a case where 3rd (KSTACK_INDEX) entry for kernel # stack does not embed index for NULL esid entry. This patch fixes that. # # Without this patch the SLB rebolt code overwirtes the 1st entry of # kernel linear mapping and causes SLB recovery to fail. # # Fixes: e7e81847478b ("powerpc/64s: move machine check SLB flushing to mm/slb.c") # Signed-off-by: Mahesh Salgaonkar # Signed-off-by: Nicholas Piggin # Reviewed-by: Nicholas Piggin # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 7312bd0c205dc9e6e30128ef9243d7bc8ba1187d # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc6xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1819:6: warning: 'ret' 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/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence': /kisskb/src/drivers/dma-buf/reservation.c:225:6: warning: 'k' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2046:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:223:2: warning: 'speaker_vol' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/ppc/awacs.c:886:36: note: 'speaker_vol' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec': /kisskb/src/net/bridge/br_netlink.c:637:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1353:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1310:6: note: 'pwr_level_cisco' was declared here /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1835:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1745:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] arch/powerpc/boot/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@0:#interrupt-cells: size is (4), expected multiple of 8 arch/powerpc/boot/mpc832x_rdb.dtb: Warning (interrupts_property): /qe@e0100000/mdio@3120/ethernet-phy@4:#interrupt-cells: size is (4), expected multiple of 8 INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3aaa4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa4b1c8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3aaa4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897481 Bytes = 4782.70 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4872861 Bytes = 4758.65 kB = 4.65 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:01 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4896676 Bytes = 4781.91 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897875 Bytes = 4783.08 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b007a0 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897617 Bytes = 4782.83 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897145 Bytes = 4782.37 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897574 Bytes = 4782.79 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897557 Bytes = 4782.77 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.18.0-rc3+ Created: Thu Aug 23 20:13:02 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4897898 Bytes = 4783.10 kB = 4.67 MB Load Address: 00b00000 Entry Point: 00b007a0 Completed OK # rm -rf /kisskb/build/powerpc-next_ppc6xx_defconfig_powerpc # Build took: 0:02:50.517873