# git rev-parse -q --verify 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5^{commit} 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 already have revision, skipping fetch # git checkout -q -f -B kisskb 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # git clean -qxdf # < git log -1 # commit 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # Author: Nicholas Piggin # Date: Fri Apr 6 03:56:30 2018 +1000 # # KVM: PPC: Book3S HV: trace_tlbie must not be called in realmode # # This crashes with a "Bad real address for load" attempting to load # from the vmalloc region in realmode (faulting address is in DAR). # # Oops: Bad interrupt in KVM entry/exit code, sig: 6 [#1] # LE SMP NR_CPUS=2048 NUMA PowerNV # CPU: 53 PID: 6582 Comm: qemu-system-ppc Not tainted 4.16.0-01530-g43d1859f0994 # NIP: c0000000000155ac LR: c0000000000c2430 CTR: c000000000015580 # REGS: c000000fff76dd80 TRAP: 0200 Not tainted (4.16.0-01530-g43d1859f0994) # MSR: 9000000000201003 CR: 48082222 XER: 00000000 # CFAR: 0000000102900ef0 DAR: d00017fffd941a28 DSISR: 00000040 SOFTE: 3 # NIP [c0000000000155ac] perf_trace_tlbie+0x2c/0x1a0 # LR [c0000000000c2430] do_tlbies+0x230/0x2f0 # # I suspect the reason is the per-cpu data is not in the linear chunk. # This could be restored if that was able to be fixed, but for now, # just remove the tracepoints. # # Fixes: 0428491cba92 ("powerpc/mm: Trace tlbie(l) instructions") # Cc: stable@vger.kernel.org # v4.13+ # Signed-off-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 19ce7909ed11c49f7eddf59e7f49cd3062bf83d5 # < make -s -j 20 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc6xx_defconfig # make -s -j 20 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' 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/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:182:16: warning: 'old' 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:635:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /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/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:220:2: 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/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1352:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1309:6: note: 'pwr_level_cisco' was declared here /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2041:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1820:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1730:46: warning: 'linear' 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 arch/powerpc/boot/mpc8272ads.dtb: Warning (pci_bridge): /pci@f0010800: missing bus-range for PCI bridge arch/powerpc/boot/mpc8272ads.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/pq2fads.dtb: Warning (pci_bridge): /pci@f0010800: missing bus-range for PCI bridge arch/powerpc/boot/pq2fads.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' 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 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa2ae4c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa2ae4c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4837697 Bytes = 4724.31 kB = 4.61 MB Load Address: 00000000 Entry Point: 00000000 INFO: Uncompressed kernel (size 0xa3b570) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4862742 Bytes = 4748.77 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4861185 Bytes = 4747.25 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4862882 Bytes = 4748.91 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b007a0 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4861527 Bytes = 4747.58 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4862247 Bytes = 4748.29 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4863056 Bytes = 4749.08 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b007a0 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4862747 Bytes = 4748.78 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Image Name: Linux-4.16.0+ Created: Wed Apr 11 21:10:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4862748 Bytes = 4748.78 kB = 4.64 MB Load Address: 00b00000 Entry Point: 00b00230 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc # Build took: 0:03:52.115986