Re: linux-next: Tree for Apr 30 (objtool warnings)
On Thu, Apr 30, 2020 at 07:40:52AM -0700, Randy Dunlap wrote: > On 4/30/20 7:31 AM, Randy Dunlap wrote: > > On 4/30/20 12:40 AM, Stephen Rothwell wrote: > >> Hi all, > >> > >> Changes since 20200429: > >> > > > > on x86_64: > > > > kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x2e: unreachable > > instruction > > kernel/cred.o: warning: objtool: copy_creds()+0x278: unreachable instruction > > net/core/skbuff.o: warning: objtool: skb_push()+0x9e: unreachable > > instruction > > > > > > Full randconfig file is attached. > > > > oops, forgot to Cc: Josh and Peter. These are all related to -flive-patching, for some reason it reduces GCC's ability to detect local noreturn functions. I had some patches for these (and more) I'll need to dig up. -- Josh
Re: linux-next: Tree for Apr 30 (objtool warnings)
On 4/30/20 7:31 AM, Randy Dunlap wrote: > On 4/30/20 12:40 AM, Stephen Rothwell wrote: >> Hi all, >> >> Changes since 20200429: >> > > on x86_64: > > kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x2e: unreachable > instruction > kernel/cred.o: warning: objtool: copy_creds()+0x278: unreachable instruction > net/core/skbuff.o: warning: objtool: skb_push()+0x9e: unreachable instruction > > > Full randconfig file is attached. > oops, forgot to Cc: Josh and Peter. -- ~Randy
Re: linux-next: Tree for Apr 30 (objtool warnings)
On 4/30/20 12:40 AM, Stephen Rothwell wrote: > Hi all, > > Changes since 20200429: > on x86_64: kernel/exit.o: warning: objtool: __x64_sys_exit_group()+0x2e: unreachable instruction kernel/cred.o: warning: objtool: copy_creds()+0x278: unreachable instruction net/core/skbuff.o: warning: objtool: skb_push()+0x9e: unreachable instruction Full randconfig file is attached. -- ~Randy Reported-by: Randy Dunlap # # Automatically generated file; DO NOT EDIT. # Linux/x86_64 5.7.0-rc3 Kernel Configuration # # # Compiler: gcc (SUSE Linux) 7.5.0 # CONFIG_CC_IS_GCC=y CONFIG_GCC_VERSION=70500 CONFIG_LD_VERSION=23200 CONFIG_CLANG_VERSION=0 CONFIG_CC_CAN_LINK=y CONFIG_CC_HAS_ASM_GOTO=y CONFIG_CC_HAS_ASM_INLINE=y CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y CONFIG_IRQ_WORK=y CONFIG_BUILDTIME_TABLE_SORT=y CONFIG_THREAD_INFO_IN_TASK=y # # General setup # CONFIG_INIT_ENV_ARG_LIMIT=32 # CONFIG_COMPILE_TEST is not set CONFIG_UAPI_HEADER_TEST=y CONFIG_LOCALVERSION="" CONFIG_LOCALVERSION_AUTO=y CONFIG_BUILD_SALT="" CONFIG_HAVE_KERNEL_GZIP=y CONFIG_HAVE_KERNEL_BZIP2=y CONFIG_HAVE_KERNEL_LZMA=y CONFIG_HAVE_KERNEL_XZ=y CONFIG_HAVE_KERNEL_LZO=y CONFIG_HAVE_KERNEL_LZ4=y # CONFIG_KERNEL_GZIP is not set # CONFIG_KERNEL_BZIP2 is not set # CONFIG_KERNEL_LZMA is not set # CONFIG_KERNEL_XZ is not set CONFIG_KERNEL_LZO=y # CONFIG_KERNEL_LZ4 is not set CONFIG_DEFAULT_HOSTNAME="(none)" CONFIG_SYSVIPC=y CONFIG_SYSVIPC_SYSCTL=y # CONFIG_POSIX_MQUEUE is not set CONFIG_WATCH_QUEUE=y CONFIG_CROSS_MEMORY_ATTACH=y CONFIG_USELIB=y CONFIG_AUDIT=y CONFIG_HAVE_ARCH_AUDITSYSCALL=y CONFIG_AUDITSYSCALL=y # # IRQ subsystem # CONFIG_GENERIC_IRQ_PROBE=y CONFIG_GENERIC_IRQ_SHOW=y CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y CONFIG_GENERIC_PENDING_IRQ=y CONFIG_GENERIC_IRQ_MIGRATION=y CONFIG_HARDIRQS_SW_RESEND=y CONFIG_GENERIC_IRQ_CHIP=y CONFIG_IRQ_DOMAIN=y CONFIG_IRQ_SIM=y CONFIG_IRQ_DOMAIN_HIERARCHY=y CONFIG_GENERIC_MSI_IRQ=y CONFIG_GENERIC_MSI_IRQ_DOMAIN=y CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y CONFIG_GENERIC_IRQ_RESERVATION_MODE=y CONFIG_IRQ_FORCED_THREADING=y CONFIG_SPARSE_IRQ=y # CONFIG_GENERIC_IRQ_DEBUGFS is not set # end of IRQ subsystem CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_ARCH_CLOCKSOURCE_INIT=y CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y CONFIG_GENERIC_CMOS_UPDATE=y # # Timers subsystem # CONFIG_TICK_ONESHOT=y CONFIG_NO_HZ_COMMON=y # CONFIG_HZ_PERIODIC is not set CONFIG_NO_HZ_IDLE=y # CONFIG_NO_HZ_FULL is not set CONFIG_CONTEXT_TRACKING=y CONFIG_CONTEXT_TRACKING_FORCE=y # CONFIG_NO_HZ is not set CONFIG_HIGH_RES_TIMERS=y # end of Timers subsystem # CONFIG_PREEMPT_NONE is not set CONFIG_PREEMPT_VOLUNTARY=y # CONFIG_PREEMPT is not set CONFIG_PREEMPT_COUNT=y # # CPU/Task time and stats accounting # CONFIG_VIRT_CPU_ACCOUNTING=y # CONFIG_TICK_CPU_ACCOUNTING is not set CONFIG_VIRT_CPU_ACCOUNTING_GEN=y # CONFIG_IRQ_TIME_ACCOUNTING is not set CONFIG_SCHED_THERMAL_PRESSURE=y CONFIG_PSI=y # CONFIG_PSI_DEFAULT_DISABLED is not set # end of CPU/Task time and stats accounting # CONFIG_CPU_ISOLATION is not set # # RCU Subsystem # CONFIG_TREE_RCU=y CONFIG_RCU_EXPERT=y CONFIG_SRCU=y CONFIG_TREE_SRCU=y CONFIG_TASKS_RCU_GENERIC=y CONFIG_TASKS_RCU=y CONFIG_TASKS_RUDE_RCU=y CONFIG_TASKS_TRACE_RCU=y CONFIG_RCU_STALL_COMMON=y CONFIG_RCU_NEED_SEGCBLIST=y CONFIG_RCU_FANOUT=64 CONFIG_RCU_FANOUT_LEAF=16 # CONFIG_RCU_FAST_NO_HZ is not set # CONFIG_RCU_NOCB_CPU is not set # CONFIG_TASKS_TRACE_RCU_READ_MB is not set # end of RCU Subsystem CONFIG_IKCONFIG=m CONFIG_IKCONFIG_PROC=y CONFIG_IKHEADERS=m CONFIG_LOG_BUF_SHIFT=17 CONFIG_LOG_CPU_MAX_BUF_SHIFT=12 CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13 CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y # # Scheduler features # CONFIG_UCLAMP_TASK=y CONFIG_UCLAMP_BUCKETS_COUNT=5 # end of Scheduler features CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y CONFIG_CC_HAS_INT128=y CONFIG_ARCH_SUPPORTS_INT128=y CONFIG_CGROUPS=y CONFIG_PAGE_COUNTER=y CONFIG_MEMCG=y CONFIG_CGROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y CONFIG_CFS_BANDWIDTH=y # CONFIG_RT_GROUP_SCHED is not set # CONFIG_UCLAMP_TASK_GROUP is not set # CONFIG_CGROUP_PIDS is not set # CONFIG_CGROUP_RDMA is not set # CONFIG_CGROUP_FREEZER is not set # CONFIG_CGROUP_HUGETLB is not set CONFIG_CPUSETS=y # CONFIG_PROC_PID_CPUSET is not set # CONFIG_CGROUP_DEVICE is not set CONFIG_CGROUP_CPUACCT=y # CONFIG_CGROUP_PERF is not set # CONFIG_CGROUP_BPF is not set # CONFIG_CGROUP_DEBUG is not set CONFIG_SOCK_CGROUP_DATA=y CONFIG_CHECKPOINT_RESTORE=y CONFIG_SCHED_AUTOGROUP=y CONFIG_SYSFS_DEPRECATED=y # CONFIG_SYSFS_DEPRECATED_V2 is not set CONFIG_RELAY=y # CONFIG_BLK_DEV_INITRD is not set # CONFIG_BOOT_CONFIG is not set CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_SYSCTL=y CONFIG_SYSCTL_EXCEPTION_TRACE=y CONFIG_HAVE_PCSPKR_PLATFORM=y CONFIG_BPF=y CONFIG_EXPERT=y # CONFIG_MULTIUSER is not set #
