# 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/s390x-linux/bin/s390x-linux-gcc --version # < git log --format=%s --max-count=1 558e8e27e73f53f8a512485be538b07115fe5f3c # < make -j 8 ARCH=s390 O=/home/kisskb/slave/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- allnoconfig # make -j 8 ARCH=s390 O=/home/kisskb/slave/build/linus_s390-allnoconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- make[1]: Entering directory '/home/kisskb/slave/build/linus_s390-allnoconfig_s390x' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release UPD include/config/kernel.release GEN ./Makefile WRAP arch/s390/include/generated/asm/asm-offsets.h WRAP arch/s390/include/generated/asm/mm-arch-hooks.h WRAP arch/s390/include/generated/asm/dma-contiguous.h WRAP arch/s390/include/generated/asm/preempt.h WRAP arch/s390/include/generated/asm/clkdev.h WRAP arch/s390/include/generated/asm/word-at-a-time.h WRAP arch/s390/include/generated/asm/export.h WRAP arch/s390/include/generated/asm/mcs_spinlock.h WRAP arch/s390/include/generated/asm/trace_clock.h WRAP arch/s390/include/generated/asm/irq_work.h CHK include/generated/uapi/linux/version.h UPD include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h Using /home/kisskb/slave/src as source for kernel HOSTCC scripts/sortextable CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig CC scripts/mod/devicetable-offsets.s GEN scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/sumversion.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/modpost.o HOSTLD scripts/mod/modpost HOSTCC arch/s390/tools/gen_facilities CHK include/generated/facilities.h UPD include/generated/facilities.h CHK include/generated/timeconst.h CC kernel/bounds.s UPD include/generated/timeconst.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/s390/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o CC init/noinitramfs.o CC init/init_task.o UPD include/generated/compile.h CC init/version.o LD usr/built-in.o CC arch/s390/mm/init.o CC arch/s390/kernel/traps.o CC kernel/fork.o CC kernel/exec_domain.o CC arch/s390/kernel/time.o CC kernel/panic.o CC arch/s390/mm/fault.o CC arch/s390/kernel/process.o CC kernel/cpu.o AS arch/s390/kernel/base.o CC arch/s390/kernel/early.o LD init/mounts.o LD init/built-in.o CC kernel/exit.o LD certs/built-in.o CC arch/s390/kernel/setup.o CC arch/s390/mm/extmem.o CC arch/s390/kernel/vtime.o CC arch/s390/kernel/idle.o CC mm/filemap.o CC mm/mempool.o CC kernel/softirq.o CC mm/oom_kill.o CC kernel/resource.o CC arch/s390/kernel/processor.o CC arch/s390/mm/mmap.o CC arch/s390/kernel/sys_s390.o CC mm/maccess.o CC arch/s390/kernel/ptrace.o CC arch/s390/kernel/signal.o CC arch/s390/mm/vmem.o CC mm/page_alloc.o CC kernel/sysctl.o CC kernel/sysctl_binary.o CC mm/page-writeback.o CC mm/readahead.o CC kernel/capability.o CC arch/s390/kernel/cpcmd.o CC arch/s390/mm/maccess.o CC arch/s390/mm/page-states.o CC arch/s390/kernel/ebcdic.o CC mm/swap.o CC kernel/ptrace.o CC arch/s390/kernel/nmi.o CC arch/s390/mm/gup.o CC arch/s390/kernel/debug.o CC mm/truncate.o CC arch/s390/kernel/irq.o CC arch/s390/kernel/ipl.o CC arch/s390/mm/pageattr.o CC arch/s390/mm/mem_detect.o CC mm/vmscan.o CC mm/shmem.o CC kernel/user.o CC arch/s390/kernel/dis.o CC kernel/signal.o CC arch/s390/mm/pgtable.o CC arch/s390/mm/pgalloc.o CC mm/util.o CC mm/mmzone.o CC mm/vmstat.o CC arch/s390/kernel/diag.o CC arch/s390/kernel/sclp.o LD arch/s390/mm/built-in.o LD arch/s390/net/built-in.o CC arch/s390/kernel/vdso.o CC mm/backing-dev.o CC arch/s390/kernel/als.o CC mm/mm_init.o CC arch/s390/kernel/sysinfo.o CC mm/mmu_context.o CC arch/s390/kernel/jump_label.o CC mm/percpu.o CC mm/slab_common.o CC mm/compaction.o CC arch/s390/kernel/lgr.o CC arch/s390/kernel/os_info.o CC arch/s390/kernel/machine_kexec.o CC mm/vmacache.o CC kernel/sys.o CC mm/interval_tree.o AS arch/s390/kernel/pgm_check.o CC mm/list_lru.o CC mm/workingset.o CC arch/s390/kernel/runtime_instr.o CC mm/debug.o CC arch/s390/kernel/cache.o CC mm/gup.o CC arch/s390/kernel/fpu.o CC mm/highmem.o CC mm/memory.o CC mm/mincore.o CC arch/s390/kernel/dumpstack.o CC mm/mlock.o AS arch/s390/kernel/entry.o AS arch/s390/kernel/reipl.o CC fs/open.o CC mm/mmap.o AS arch/s390/kernel/relocate_kernel.o CC kernel/kmod.o AS arch/s390/kernel/head.o LDS arch/s390/kernel/vdso64/vdso64.lds AS arch/s390/kernel/head64.o VDSO64A arch/s390/kernel/vdso64/gettimeofday.o LDS arch/s390/kernel/vmlinux.lds VDSO64A arch/s390/kernel/vdso64/clock_getres.o VDSO64A arch/s390/kernel/vdso64/clock_gettime.o VDSO64A arch/s390/kernel/vdso64/note.o CC mm/mprotect.o CC mm/mremap.o VDSO64A arch/s390/kernel/vdso64/getcpu.o VDSO64L arch/s390/kernel/vdso64/vdso64.so.dbg OBJCOPY arch/s390/kernel/vdso64/vdso64.so AS arch/s390/kernel/vdso64/vdso64_wrapper.o LD arch/s390/kernel/vdso64/built-in.o LD arch/s390/kernel/built-in.o CC mm/msync.o LD arch/s390/built-in.o LD ipc/built-in.o CC kernel/workqueue.o CC security/commoncap.o CC mm/rmap.o CC mm/vmalloc.o CC security/min_addr.o CC fs/read_write.o CC kernel/pid.o LD security/built-in.o LD crypto/built-in.o CC mm/pagewalk.o LD block/built-in.o CC kernel/task_work.o CC mm/pgtable-generic.o CC mm/init-mm.o CC mm/nobootmem.o CC mm/memblock.o CC fs/file_table.o CC kernel/extable.o CC kernel/params.o LD drivers/amba/built-in.o LD drivers/auxdisplay/built-in.o LD drivers/block/built-in.o LD drivers/bus/built-in.o LD drivers/cdrom/built-in.o CC drivers/base/component.o CC drivers/char/mem.o CC fs/super.o CC kernel/kthread.o CC mm/dmapool.o CC fs/char_dev.o CC fs/stat.o CC fs/exec.o CC drivers/base/core.o CC drivers/char/random.o CC kernel/sys_ni.o CC kernel/nsproxy.o CC mm/sparse.o CC fs/pipe.o LD sound/built-in.o LD drivers/char/ipmi/built-in.o LD firmware/built-in.o CC drivers/base/bus.o LD drivers/s390/block/built-in.o CC drivers/s390/char/ctrlchar.o CC kernel/notifier.o CC mm/sparse-vmemmap.o CC drivers/s390/char/keyboard.o CC fs/namei.o CC drivers/base/dd.o CC drivers/base/syscore.o CC drivers/base/driver.o CC drivers/char/misc.o CC kernel/ksysfs.o CC mm/slub.o CC fs/fcntl.o CC fs/ioctl.o CC kernel/cred.o CC drivers/base/class.o LD drivers/char/agp/built-in.o LD drivers/char/built-in.o CC drivers/s390/char/defkeymap.o LD drivers/clk/bcm/built-in.o LD drivers/clk/mvebu/built-in.o LD drivers/clk/ti/built-in.o LD drivers/clk/built-in.o LD drivers/clocksource/built-in.o LD drivers/firewire/built-in.o LD drivers/firmware/broadcom/built-in.o LD drivers/firmware/meson/built-in.o CC kernel/reboot.o LD drivers/firmware/tegra/built-in.o LD drivers/firmware/built-in.o CC kernel/async.o CC drivers/base/platform.o LD drivers/gpu/drm/bridge/built-in.o LD drivers/gpu/drm/hisilicon/built-in.o LD drivers/gpu/drm/i2c/built-in.o CC drivers/s390/char/sclp.o LD drivers/gpu/drm/omapdrm/displays/built-in.o CC kernel/range.o LD drivers/gpu/drm/omapdrm/dss/built-in.o LD drivers/gpu/drm/omapdrm/built-in.o LD drivers/gpu/drm/panel/built-in.o LD drivers/gpu/drm/tilcdc/built-in.o LD drivers/gpu/drm/built-in.o LD drivers/gpu/vga/built-in.o LD drivers/gpu/built-in.o CC kernel/smpboot.o LD drivers/hwtracing/intel_th/built-in.o CC drivers/base/cpu.o CC kernel/ucount.o CC kernel/irq/irqdesc.o LD kernel/livepatch/built-in.o CC kernel/power/qos.o CC kernel/locking/mutex.o CC drivers/base/firmware.o LD mm/built-in.o CC drivers/s390/char/sclp_rw.o CC drivers/s390/char/sclp_quiesce.o LD net/built-in.o CC drivers/base/init.o CC drivers/base/map.o CC kernel/irq/handle.o CC fs/readdir.o CC lib/lockref.o CC drivers/s390/char/sclp_cmd.o CC kernel/locking/semaphore.o CC drivers/base/devres.o CC lib/bcd.o LD kernel/power/built-in.o CC lib/div64.o CC kernel/printk/printk.o CC lib/sort.o CC drivers/base/attribute_container.o CC kernel/irq/manage.o CC lib/parser.o CC kernel/locking/rwsem.o CC fs/select.o CC drivers/s390/char/sclp_config.o CC kernel/rcu/update.o CC kernel/locking/percpu-rwsem.o /home/kisskb/slave/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /home/kisskb/slave/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] CC drivers/base/transport_class.o CC kernel/rcu/sync.o CC drivers/s390/char/sclp_cpi_sys.o CC lib/halfmd4.o CC kernel/locking/rwsem-xadd.o LD kernel/printk/built-in.o CC drivers/s390/char/sclp_ocf.o CC lib/debug_locks.o CC drivers/base/topology.o CC lib/random32.o CC kernel/rcu/tiny.o LD kernel/locking/built-in.o CC drivers/base/container.o CC drivers/s390/char/sclp_ctl.o CC kernel/sched/core.o CC kernel/irq/spurious.o CC lib/bust_spinlocks.o CC drivers/base/property.o CC drivers/base/cacheinfo.o LD kernel/rcu/built-in.o CC kernel/irq/resend.o CC drivers/s390/char/sclp_early.o CC lib/kasprintf.o CC fs/dcache.o LD drivers/s390/char/built-in.o CC lib/bitmap.o CC drivers/s390/cio/airq.o LD drivers/base/power/built-in.o LD drivers/base/test/built-in.o CC drivers/base/dma-mapping.o CC fs/inode.o CC kernel/irq/chip.o CC fs/attr.o LD drivers/base/built-in.o LD drivers/i2c/algos/built-in.o LD drivers/i2c/busses/built-in.o LD drivers/i2c/muxes/built-in.o LD drivers/i2c/built-in.o LD drivers/idle/built-in.o LD drivers/irqchip/built-in.o LD drivers/lguest/built-in.o LD drivers/macintosh/built-in.o CC drivers/s390/cio/blacklist.o CC lib/scatterlist.o LD drivers/media/common/b2c2/built-in.o LD drivers/media/common/saa7146/built-in.o LD drivers/media/common/siano/built-in.o LD drivers/media/common/v4l2-tpg/built-in.o LD drivers/media/common/built-in.o CC kernel/sched/loadavg.o LD drivers/media/firewire/built-in.o CC kernel/irq/dummychip.o LD drivers/media/mmc/siano/built-in.o LD drivers/media/i2c/soc_camera/built-in.o LD drivers/media/mmc/built-in.o LD drivers/media/i2c/built-in.o CC lib/gcd.o LD drivers/media/platform/omap/built-in.o LD drivers/media/platform/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/rc/keymaps/built-in.o LD drivers/media/rc/built-in.o CC kernel/sched/clock.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/pci/mantis/built-in.o LD drivers/media/spi/built-in.o LD drivers/media/pci/netup_unidvb/built-in.o LD drivers/media/tuners/built-in.o CC drivers/s390/cio/chsc.o CC drivers/s390/cio/cio.o LD drivers/media/pci/ngene/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/pci/pt1/built-in.o LD drivers/media/pci/pt3/built-in.o LD drivers/s390/crypto/built-in.o LD drivers/media/pci/saa7146/built-in.o LD drivers/s390/net/built-in.o LD drivers/media/pci/smipcie/built-in.o LD drivers/media/pci/ttpci/built-in.o CC drivers/s390/cio/css.o LD drivers/media/pci/built-in.o CC lib/lcm.o CC kernel/irq/devres.o CC lib/list_sort.o CC kernel/sched/cputime.o LD drivers/media/usb/b2c2/built-in.o LD drivers/media/usb/dvb-usb/built-in.o CC fs/bad_inode.o LD drivers/media/usb/dvb-usb-v2/built-in.o CC lib/uuid.o LD drivers/media/usb/s2255/built-in.o LD drivers/media/usb/siano/built-in.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o LD drivers/media/usb/ttusb-dec/built-in.o CC lib/flex_array.o LD drivers/media/usb/zr364xx/built-in.o LD drivers/media/usb/built-in.o LD kernel/irq/built-in.o LD drivers/media/built-in.o CC kernel/time/time.o CC fs/file.o LD drivers/mfd/built-in.o LD drivers/misc/cb710/built-in.o LD drivers/misc/eeprom/built-in.o CC kernel/sched/idle_task.o LD drivers/misc/lis3lv02d/built-in.o LD drivers/misc/mic/bus/built-in.o LD drivers/misc/mic/built-in.o LD drivers/misc/ti-st/built-in.o LD drivers/misc/built-in.o LD drivers/mmc/built-in.o CC lib/iov_iter.o LD drivers/net/built-in.o LD drivers/nfc/built-in.o LD drivers/platform/built-in.o LD drivers/nvme/host/built-in.o LD drivers/nvme/target/built-in.o LD drivers/power/built-in.o LD drivers/nvme/built-in.o LD drivers/ptp/built-in.o LD drivers/pwm/built-in.o CC drivers/s390/cio/chp.o CC kernel/up.o LD drivers/soc/bcm/built-in.o CC kernel/sched/fair.o LD drivers/soc/fsl/built-in.o LD drivers/soc/built-in.o CC kernel/time/timer.o CC lib/clz_ctz.o CC kernel/kexec_core.o CC drivers/tty/tty_io.o CC lib/bsearch.o CC lib/find_bit.o CC fs/filesystems.o CC drivers/tty/n_tty.o CC drivers/s390/cio/idset.o CC kernel/time/hrtimer.o CC kernel/sched/rt.o CC fs/namespace.o CC drivers/s390/cio/isc.o CC kernel/kexec.o CC kernel/sched/deadline.o CC lib/llist.o CC drivers/s390/cio/fcx.o CC lib/memweight.o CC kernel/time/timekeeping.o CC lib/kfifo.o CC lib/percpu-refcount.o CC lib/percpu_ida.o CC kernel/sched/stop_task.o CC lib/rhashtable.o CC drivers/s390/cio/itcw.o CC drivers/tty/tty_ioctl.o CC drivers/tty/tty_ldisc.o CC kernel/sched/wait.o CC lib/reciprocal_div.o CC lib/once.o CC drivers/s390/cio/crw.o CC kernel/sched/swait.o CC lib/string_helpers.o CC fs/seq_file.o CC drivers/tty/tty_buffer.o CC drivers/tty/tty_port.o CC kernel/time/ntp.o CC drivers/s390/cio/ccwreq.o CC kernel/sched/completion.o CC kernel/time/clocksource.o CC kernel/sched/idle.o CC drivers/s390/cio/trace.o CC lib/hexdump.o CC kernel/time/jiffies.o CC drivers/tty/tty_mutex.o CC kernel/time/timer_list.o CC drivers/s390/cio/ioasm.o CC lib/kstrtox.o CC fs/xattr.o LD kernel/sched/built-in.o CC lib/hweight.o CC lib/syscall.o CC kernel/time/timeconv.o CC kernel/time/timecounter.o CC drivers/tty/tty_ldsem.o CC drivers/s390/cio/device.o LD drivers/tty/ipwireless/built-in.o CC kernel/time/alarmtimer.o LD drivers/tty/serial/built-in.o LD drivers/tty/vt/built-in.o LD drivers/s390/scsi/built-in.o CC lib/argv_split.o CC kernel/time/posix-stubs.o LD drivers/s390/virtio/built-in.o CC fs/libfs.o CC kernel/time/clockevents.o CC lib/chacha20.o LD drivers/tty/built-in.o LD drivers/video/backlight/built-in.o LD drivers/video/fbdev/core/built-in.o CC fs/fs-writeback.o LD drivers/video/fbdev/omap2/omapfb/displays/built-in.o LD drivers/video/fbdev/omap2/omapfb/dss/built-in.o LD drivers/video/fbdev/omap2/omapfb/built-in.o LD drivers/video/fbdev/omap2/built-in.o LD drivers/video/fbdev/built-in.o LD drivers/video/built-in.o LD drivers/built-in.o CC fs/pnode.o CC fs/splice.o CC lib/cmdline.o CC kernel/time/tick-common.o CC lib/ctype.o CC fs/sync.o CC lib/dec_and_lock.o AS arch/s390/lib/mem.o CC arch/s390/lib/xor.o CC lib/decompress.o CC lib/dma-noop.o CC fs/utimes.o CC drivers/s390/cio/device_fsm.o CC arch/s390/lib/delay.o LD kernel/time/built-in.o CC fs/stack.o LD kernel/built-in.o CC lib/dump_stack.o CC arch/s390/lib/find.o LD virt/lib/built-in.o LD virt/built-in.o CC lib/earlycpio.o CC arch/s390/lib/string.o CC fs/fs_struct.o CC arch/s390/lib/uaccess.o CC fs/statfs.o CC lib/extable.o CC lib/flex_proportions.o CC lib/idr.o CC fs/fs_pin.o CC fs/nsfs.o AR arch/s390/lib/lib.a CC drivers/s390/cio/device_ops.o EXPORTS arch/s390/lib/lib-ksyms.o CC lib/int_sqrt.o LD arch/s390/lib/built-in.o CC drivers/s390/cio/device_id.o CC lib/ioremap.o CC fs/no-block.o CC lib/irq_regs.o CC lib/is_single_threaded.o LD fs/devpts/built-in.o LD fs/exofs/built-in.o LD fs/quota/built-in.o CC lib/klist.o CC fs/ramfs/inode.o LD fs/notify/dnotify/built-in.o LD fs/notify/fanotify/built-in.o LD fs/notify/inotify/built-in.o CC lib/kobject.o LD fs/notify/built-in.o CC drivers/s390/cio/device_pgid.o CC lib/md5.o CC lib/kobject_uevent.o CC drivers/s390/cio/device_status.o CC lib/nmi_backtrace.o CC lib/nodemask.o CC lib/plist.o CC fs/ramfs/file-mmu.o CC drivers/s390/cio/cmf.o CC lib/radix-tree.o CC lib/ratelimit.o CC lib/rbtree.o LD fs/ramfs/ramfs.o LD fs/ramfs/built-in.o LD fs/built-in.o CC lib/seq_buf.o CC lib/sha1.o LD drivers/s390/cio/ccw_device.o CC lib/show_mem.o CC lib/timerqueue.o CC lib/string.o CC lib/vsprintf.o CC lib/win_minmax.o LD drivers/s390/cio/built-in.o LD drivers/s390/built-in.o AR lib/lib.a EXPORTS lib/lib-ksyms.o LD lib/built-in.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD vmlinux.o MODPOST vmlinux.o LD vmlinux SORTEX vmlinux SYSMAP System.map OBJCOPY arch/s390/boot/image LDS arch/s390/boot/compressed/vmlinux.lds GEN arch/s390/boot/compressed/sizes.h OBJCOPY arch/s390/boot/compressed/vmlinux.bin GZIP arch/s390/boot/compressed/vmlinux.bin.gz AS arch/s390/boot/compressed/head.o CC arch/s390/boot/compressed/misc.o LD arch/s390/boot/compressed/piggy.o LD arch/s390/boot/compressed/vmlinux OBJCOPY arch/s390/boot/bzImage make[1]: Leaving directory '/home/kisskb/slave/build/linus_s390-allnoconfig_s390x' Completed OK # rm -rf /home/kisskb/slave/build/linus_s390-allnoconfig_s390x # Build took: 0:00:22.442380