# git rev-parse -q --verify b92d1aabe9aace6ffd3399cae2ba52b6a927f7d7^{commit} b92d1aabe9aace6ffd3399cae2ba52b6a927f7d7 already have revision, skipping fetch # git checkout -q -f -B kisskb b92d1aabe9aace6ffd3399cae2ba52b6a927f7d7 # git clean -qxdf # < git log -1 # commit b92d1aabe9aace6ffd3399cae2ba52b6a927f7d7 # Author: Nicholas Piggin # Date: Wed Nov 10 12:50:56 2021 +1000 # # powerpc/watchdog: read TB close to where it is used # # When taking watchdog actions, printing messages, comparing and # re-setting wd_smp_last_reset_tb, etc., read TB close to the point of use # and under wd_smp_lock or printing lock (if applicable). # # This should keep timebase mostly monotonic with kernel log messages, and # could prevent (in theory) a laggy CPU updating wd_smp_last_reset_tb to # something a long way in the past, and causing other CPUs to appear to be # stuck. # # These additional TB reads are all slowpath (lockup has been detected), # so performance does not matter. # # Signed-off-by: Nicholas Piggin # Reviewed-by: Laurent Dufour # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20211110025056.2084347-5-npiggin@gmail.com # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 b92d1aabe9aace6ffd3399cae2ba52b6a927f7d7 # < make -s -j 8 ARCH=x86 O=/kisskb/build/powerpc-next_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # < make -s -j 8 ARCH=x86 O=/kisskb/build/powerpc-next_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 8 ARCH=x86 O=/kisskb/build/powerpc-next_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 8 ARCH=x86 O=/kisskb/build/powerpc-next_x86-allmodconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- vmlinux.o: warning: objtool: __do_fast_syscall_32()+0xa: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: do_syscall_64()+0x9: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: do_int80_syscall_32()+0x9: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: xen_get_debugreg()+0xb: call to HYPERVISOR_get_debugreg() leaves .noinstr.text section vmlinux.o: warning: objtool: xen_set_debugreg()+0x15: call to HYPERVISOR_set_debugreg.isra.0() leaves .noinstr.text section vmlinux.o: warning: objtool: exc_general_protection()+0x22: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: fixup_bad_iret()+0x20: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: mce_setup()+0x18: call to memset() leaves .noinstr.text section vmlinux.o: warning: objtool: do_machine_check()+0x27: call to stackleak_track_stack() leaves .noinstr.text section vmlinux.o: warning: objtool: .entry.text+0x10e6: call to stackleak_erase() leaves .noinstr.text section vmlinux.o: warning: objtool: .entry.text+0x143: call to stackleak_erase() leaves .noinstr.text section vmlinux.o: warning: objtool: .entry.text+0x17d9: call to stackleak_erase() leaves .noinstr.text section Completed OK # rm -rf /kisskb/build/powerpc-next_x86-allmodconfig_x86_64-gcc11 # Build took: 0:57:19.766059