# git rev-parse -q --verify 558e8e27e73f53f8a512485be538b07115fe5f3c^{commit} 558e8e27e73f53f8a512485be538b07115fe5f3c already have revision, skipping fetch # git checkout -q -f -B kisskb 558e8e27e73f53f8a512485be538b07115fe5f3c # git clean -qxdf # git log -1 commit 558e8e27e73f53f8a512485be538b07115fe5f3c Author: Linus Torvalds Date: Thu Feb 16 12:19:18 2017 -0800 Revert "nohz: Fix collision between tick and other hrtimers" This reverts commit 24b91e360ef521a2808771633d76ebc68bd5604b and commit 7bdb59f1ad47 ("tick/nohz: Fix possible missing clock reprog after tick soft restart") that depends on it, Pavel reports that it causes occasional boot hangs for him that seem to depend on just how the machine was booted. In particular, his machine hangs at around the PCI fixups of the EHCI USB host controller, but only hangs from cold boot, not from a warm boot. Thomas Gleixner suspecs it's a CPU hotplug interaction, particularly since Pavel also saw suspend/resume issues that seem to be related. We're reverting for now while trying to figure out the root cause. Reported-bisected-and-tested-by: Pavel Machek Acked-by: Frederic Weisbecker Cc: Wanpeng Li Cc: Peter Zijlstra Cc: Rik van Riel Cc: Thomas Gleixner Cc: stable@kernel.org # reverted commits were marked for stable Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux-gcc --version # < git log --format=%s --max-count=1 558e8e27e73f53f8a512485be538b07115fe5f3c # < make -j 8 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- TCM-BF518_defconfig # make -j 8 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- make[1]: Entering directory '/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release GEN ./Makefile WRAP arch/blackfin/include/generated/asm/bitsperlong.h WRAP arch/blackfin/include/generated/asm/auxvec.h WRAP arch/blackfin/include/generated/asm/cputime.h WRAP arch/blackfin/include/generated/asm/div64.h WRAP arch/blackfin/include/generated/asm/device.h WRAP arch/blackfin/include/generated/asm/current.h WRAP arch/blackfin/include/generated/asm/fb.h WRAP arch/blackfin/include/generated/asm/bugs.h WRAP arch/blackfin/include/generated/asm/hw_irq.h WRAP arch/blackfin/include/generated/asm/emergency-restart.h WRAP arch/blackfin/include/generated/asm/irq_regs.h WRAP arch/blackfin/include/generated/asm/ipcbuf.h WRAP arch/blackfin/include/generated/asm/kdebug.h WRAP arch/blackfin/include/generated/asm/kmap_types.h WRAP arch/blackfin/include/generated/asm/errno.h WRAP arch/blackfin/include/generated/asm/ioctl.h WRAP arch/blackfin/include/generated/asm/futex.h WRAP arch/blackfin/include/generated/asm/irq_work.h WRAP arch/blackfin/include/generated/asm/local.h WRAP arch/blackfin/include/generated/asm/mm-arch-hooks.h CHK include/generated/uapi/linux/version.h WRAP arch/blackfin/include/generated/asm/kvm_para.h WRAP arch/blackfin/include/generated/asm/local64.h WRAP arch/blackfin/include/generated/asm/mcs_spinlock.h WRAP arch/blackfin/include/generated/asm/mman.h WRAP arch/blackfin/include/generated/asm/msgbuf.h WRAP arch/blackfin/include/generated/asm/param.h WRAP arch/blackfin/include/generated/asm/preempt.h WRAP arch/blackfin/include/generated/asm/sembuf.h WRAP arch/blackfin/include/generated/asm/pgalloc.h WRAP arch/blackfin/include/generated/asm/percpu.h WRAP arch/blackfin/include/generated/asm/setup.h WRAP arch/blackfin/include/generated/asm/shmbuf.h WRAP arch/blackfin/include/generated/asm/serial.h UPD include/generated/uapi/linux/version.h WRAP arch/blackfin/include/generated/asm/shmparam.h WRAP arch/blackfin/include/generated/asm/resource.h WRAP arch/blackfin/include/generated/asm/termios.h WRAP arch/blackfin/include/generated/asm/topology.h WRAP arch/blackfin/include/generated/asm/socket.h WRAP arch/blackfin/include/generated/asm/trace_clock.h WRAP arch/blackfin/include/generated/asm/types.h WRAP arch/blackfin/include/generated/asm/sockios.h WRAP arch/blackfin/include/generated/asm/unaligned.h WRAP arch/blackfin/include/generated/asm/statfs.h WRAP arch/blackfin/include/generated/asm/ucontext.h WRAP arch/blackfin/include/generated/asm/termbits.h WRAP arch/blackfin/include/generated/asm/word-at-a-time.h WRAP arch/blackfin/include/generated/asm/xor.h HOSTCC scripts/basic/bin2c WRAP arch/blackfin/include/generated/asm/user.h UPD include/config/kernel.release Using /home/kisskb/slave/src as source for kernel CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h HOSTCC scripts/conmakehash HOSTCC scripts/kallsyms CC scripts/mod/empty.o CC scripts/mod/devicetable-offsets.s HOSTCC scripts/mod/mk_elfconfig cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' /home/kisskb/slave/src/scripts/Makefile.build:154: recipe for target 'scripts/mod/devicetable-offsets.s' failed make[3]: *** [scripts/mod/devicetable-offsets.s] Error 1 make[3]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/scripts/Makefile.build:294: recipe for target 'scripts/mod/empty.o' failed make[3]: *** [scripts/mod/empty.o] Error 1 CC kernel/bounds.s CHK include/generated/timeconst.h cc1: error: -mcpu=bf518-0.1 has invalid silicon revision cc1: error: unrecognized command line option '-mcpu=bf518-0.1' UPD include/generated/timeconst.h /home/kisskb/slave/src/./Kbuild:45: recipe for target 'kernel/bounds.s' failed make[2]: *** [kernel/bounds.s] Error 1 make[2]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/Makefile:1033: recipe for target 'prepare0' failed make[1]: *** [prepare0] Error 2 make[1]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/scripts/Makefile.build:553: recipe for target 'scripts/mod' failed make[2]: *** [scripts/mod] Error 2 make[2]: *** Waiting for unfinished jobs.... /home/kisskb/slave/src/Makefile:560: recipe for target 'scripts' failed make[1]: *** [scripts] Error 2 make[1]: Leaving directory '/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin' Makefile:150: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Command 'make -j 8 ARCH=blackfin O=/home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/bfin-uclinux/bin/bfin-uclinux- ' returned non-zero exit status 2 # rm -rf /home/kisskb/slave/build/linus_TCM-BF518_defconfig_bfin # Build took: 0:00:07.591875