# git rev-parse -q --verify 7f2444d38f6bbfa12bc15e2533d8f9daa85ca02b^{commit} 7f2444d38f6bbfa12bc15e2533d8f9daa85ca02b already have revision, skipping fetch # git checkout -q -f -B kisskb 7f2444d38f6bbfa12bc15e2533d8f9daa85ca02b # git clean -qxdf # < git log -1 # commit 7f2444d38f6bbfa12bc15e2533d8f9daa85ca02b # Merge: c5f12fdb8bd8 77b4b5420422 # Author: Linus Torvalds # Date: Tue Sep 17 12:35:15 2019 -0700 # # Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip # # Pull core timer updates from Thomas Gleixner: # "Timers and timekeeping updates: # # - A large overhaul of the posix CPU timer code which is a preparation # for moving the CPU timer expiry out into task work so it can be # properly accounted on the task/process. # # An update to the bogus permission checks will come later during the # merge window as feedback was not complete before heading of for # travel. # # - Switch the timerqueue code to use cached rbtrees and get rid of the # homebrewn caching of the leftmost node. # # - Consolidate hrtimer_init() + hrtimer_init_sleeper() calls into a # single function # # - Implement the separation of hrtimers to be forced to expire in hard # interrupt context even when PREEMPT_RT is enabled and mark the # affected timers accordingly. # # - Implement a mechanism for hrtimers and the timer wheel to protect # RT against priority inversion and live lock issues when a (hr)timer # which should be canceled is currently executing the callback. # Instead of infinitely spinning, the task which tries to cancel the # timer blocks on a per cpu base expiry lock which is held and # released by the (hr)timer expiry code. # # - Enable the Hyper-V TSC page based sched_clock for Hyper-V guests # resulting in faster access to timekeeping functions. # # - Updates to various clocksource/clockevent drivers and their device # tree bindings. # # - The usual small improvements all over the place" # # * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (101 commits) # posix-cpu-timers: Fix permission check regression # posix-cpu-timers: Always clear head pointer on dequeue # hrtimer: Add a missing bracket and hide `migration_base' on !SMP # posix-cpu-timers: Make expiry_active check actually work correctly # posix-timers: Unbreak CONFIG_POSIX_TIMERS=n build # tick: Mark sched_timer to expire in hard interrupt context # hrtimer: Add kernel doc annotation for HRTIMER_MODE_HARD # x86/hyperv: Hide pv_ops access for CONFIG_PARAVIRT=n # posix-cpu-timers: Utilize timerqueue for storage # posix-cpu-timers: Move state tracking to struct posix_cputimers # posix-cpu-timers: Deduplicate rlimit handling # posix-cpu-timers: Remove pointless comparisons # posix-cpu-timers: Get rid of 64bit divisions # posix-cpu-timers: Consolidate timer expiry further # posix-cpu-timers: Get rid of zero checks # rlimit: Rewrite non-sensical RLIMIT_CPU comment # posix-cpu-timers: Respect INFINITY for hard RTTIME limit # posix-cpu-timers: Switch thread group sampling to array # posix-cpu-timers: Restructure expiry array # posix-cpu-timers: Remove cputime_expires # ... # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 7f2444d38f6bbfa12bc15e2533d8f9daa85ca02b # < make -s -j 80 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allmodconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # yes \n | make -s -j 80 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 oldconfig yes: standard output: Broken pipe # make -s -j 80 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 /kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler': /kisskb/src/arch/um/os-Linux/signal.c:93:1: warning: the frame size of 2960 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common': /kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2976 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/security/apparmor/policy_unpack.c: In function 'unpack_profile': /kisskb/src/security/apparmor/policy_unpack.c:523:9: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized] str[pos] = ':'; ^ /kisskb/src/security/apparmor/policy_unpack.c:494:14: note: 'pos' was declared here int c, j, pos, size2 = unpack_strdup(e, &str, NULL); ^ /kisskb/src/lib/lz4/lz4hc_compress.c: In function 'LZ4HC_compress_generic': /kisskb/src/lib/lz4/lz4hc_compress.c:579:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/mm/hmm.c: In function 'hmm_vma_walk_pud': /kisskb/src/mm/hmm.c:753:9: error: implicit declaration of function 'pud_pfn' [-Werror=implicit-function-declaration] pfn = pud_pfn(pud) + ((addr & ~PUD_MASK) >> PAGE_SHIFT); ^ cc1: some warnings being treated as errors make[2]: *** [/kisskb/src/scripts/Makefile.build:281: mm/hmm.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1087: mm] Error 2 make[1]: *** Waiting for unfinished jobs.... /kisskb/src/drivers/misc/lkdtm/bugs.c: In function 'lkdtm_UNSET_SMEP': /kisskb/src/drivers/misc/lkdtm/bugs.c:279:8: error: implicit declaration of function 'native_read_cr4' [-Werror=implicit-function-declaration] cr4 = native_read_cr4(); ^ /kisskb/src/drivers/misc/lkdtm/bugs.c:281:13: error: 'X86_CR4_SMEP' undeclared (first use in this function) if ((cr4 & X86_CR4_SMEP) != X86_CR4_SMEP) { ^ /kisskb/src/drivers/misc/lkdtm/bugs.c:281:13: note: each undeclared identifier is reported only once for each function it appears in /kisskb/src/drivers/misc/lkdtm/bugs.c:288:2: error: implicit declaration of function 'native_write_cr4' [-Werror=implicit-function-declaration] native_write_cr4(cr4); ^ cc1: some warnings being treated as errors make[4]: *** [/kisskb/src/scripts/Makefile.build:280: drivers/misc/lkdtm/bugs.o] Error 1 make[3]: *** [/kisskb/src/scripts/Makefile.build:497: drivers/misc/lkdtm] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:497: drivers/misc] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1087: drivers] Error 2 make: *** [Makefile:179: sub-make] Error 2 Command 'make -s -j 80 ARCH=um O=/kisskb/build/linus_um-allmodconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_um-allmodconfig_um-x86_64 # Build took: 0:04:57.063201