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#1 2018-08-12 17:55:04

soylens
Member
Registered: 2018-08-12
Posts: 7

[SOLVED]Systemtap does not find some symbols correctly

Hello.
I have follow the wiki page to rebuild the kernel with debug information and reinstalled all 3 packages, but however, several functions do not work as supposed.
I will take the probes kernel.function("kbd_event") and syscall.* as my instance
With the official kernel,

$ stap -L 'kernel.function("kbd_event")'

give the correct results(exact 1 match), whereas

semantic error: no match(similar functions: kbd_event, ......)

is given with the newly built kernel, which does not make sense at all(for failing and suggesting a similar match which is completely identical to the failed one).
Interestingly, kbd_event does however show up in /proc/kallsyms

Alongside,

$ stap -L 'syscall.*'

gives no other probes than those which were given with the official kernel:

syscall.clone __nr:long name:string clone_flags:long stack_start:long parent_tid_uaddr:long child_tid_uaddr:long argstr:string $clone_flags:long unsigned int $stack_start:long unsigned int $stack_size:long unsigned int $parent_tidptr:int* $child_tidptr:int* $tls:long unsigned int $vfork:struct completion $nr:long int
syscall.ni_syscall name:string argstr:string
syscall.rt_sigreturn name:string argstr:string $set:sigset_t
syscall.sigreturn name:string argstr:string $set:sigset_t

I wonder if stap is reading an incorrect symbol table left behind from official kernel. I do not know very much about the underlying details, so I have come here to seek help.

Last edited by soylens (2018-08-13 09:56:28)

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#2 2018-08-12 18:12:43

soylens
Member
Registered: 2018-08-12
Posts: 7

Re: [SOLVED]Systemtap does not find some symbols correctly

Following up verbose outputs of stap

$ stap -vv -L 'kernel.function("kbd_event")'
Systemtap translator/driver (version 3.2/0.171, non-git sources)
Copyright (C) 2005-2017 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
tested kernel versions: 2.6.18 ... 4.11
enabled features: AVAHI PYTHON2 PYTHON3 LIBSQLITE3 LIBXML2 NLS NSS READLINE
Created temporary directory "/tmp/stapHRrlcN"
Session arch: x86_64 release: 4.17.14-arch1-1-ARCH
Searched for library macro files: "/usr/share/systemtap/tapset/linux", found: 6, processed: 6
Searched for library macro files: "/usr/share/systemtap/tapset", found: 9, processed: 9
Searched: "/usr/share/systemtap/tapset/linux/x86_64", found: 20, processed: 20
Searched: "/usr/share/systemtap/tapset/linux", found: 403, processed: 403
Searched: "/usr/share/systemtap/tapset/x86_64", found: 1, processed: 1
Searched: "/usr/share/systemtap/tapset", found: 30, processed: 30
Pass 1: parsed user script and 469 library scripts using 115808virt/51268res/7136shr/44168data kb, in 80usr/10sys/93real ms.
Attempting to extract kernel debuginfo build ID from /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux.id
Attempting to extract kernel debuginfo build ID from /sys/kernel/notes
focused on module 'kernel' = [0xffffffff81000000-0xffffffff8268d000, bias 0 file /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux ELF machine |x86_64 (code 62)
semantic error: while resolving probe point: identifier 'kernel' at <input>:1:7
   thrown from: elaborate.cxx:1080
        source: probe kernel.function("kbd_event") {}
                      ^

semantic error: no match (similar functions: kbd_event, pps_event, put_event, bd_mount, dock_event)
   thrown from: tapsets.cxx:8685
Pass 2: analyzed script: 0 probes, 0 functions, 0 embeds, 0 globals using 179120virt/115948res/8460shr/107480data kb, in 610usr/30sys/653real ms.
Running rm -rf /tmp/stapHRrlcN
Spawn waitpid result (0x0): 0
Removed temporary directory "/tmp/stapHRrlcN"
stap -vvv -L 'kernel.function("kbd_event")'
Systemtap translator/driver (version 3.2/0.171, non-git sources)
Copyright (C) 2005-2017 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
tested kernel versions: 2.6.18 ... 4.11
enabled features: AVAHI PYTHON2 PYTHON3 LIBSQLITE3 LIBXML2 NLS NSS READLINE
Created temporary directory "/tmp/stapKcC4W6"
Session arch: x86_64 release: 4.17.14-arch1-1-ARCH
Parsed kernel "/lib/modules/4.17.14-arch1-1-ARCH/build/.config", containing 7519 tuples
Parsed kernel "/lib/modules/4.17.14-arch1-1-ARCH/build/Module.symvers", containing 9085 vmlinux exports
Parsed kernel "/lib/modules/4.17.14-arch1-1-ARCH/build/System.map", containing 43538 symbols
Processing tapset "/usr/share/systemtap/tapset/linux/context.stpm"
Processing tapset "/usr/share/systemtap/tapset/linux/inet.stpm"
Processing tapset "/usr/share/systemtap/tapset/linux/json.stpm"
Processing tapset "/usr/share/systemtap/tapset/linux/nfs_proc.stpm"
Processing tapset "/usr/share/systemtap/tapset/linux/syscalls.stpm"
Processing tapset "/usr/share/systemtap/tapset/linux/task.stpm"
Searched for library macro files: "/usr/share/systemtap/tapset/linux", found: 6, processed: 6
Processing tapset "/usr/share/systemtap/tapset/choose_defined.stpm"
Processing tapset "/usr/share/systemtap/tapset/container_of.stpm"
Processing tapset "/usr/share/systemtap/tapset/macros.stpm"
Processing tapset "/usr/share/systemtap/tapset/offsetof.stpm"
Processing tapset "/usr/share/systemtap/tapset/print_stats.stpm"
Processing tapset "/usr/share/systemtap/tapset/private30.stpm"
Processing tapset "/usr/share/systemtap/tapset/sizeof.stpm"
Processing tapset "/usr/share/systemtap/tapset/try_assign.stpm"
Processing tapset "/usr/share/systemtap/tapset/type_defined.stpm"
Searched for library macro files: "/usr/share/systemtap/tapset", found: 9, processed: 9
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/aux_syscalls.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_arch_prctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_execve.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_fadvise64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_fallocate.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_ftruncate64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_lookup_dcookie.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_readahead.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_compat_truncate64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_execve.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_get_thread_area.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_iopl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_mmap.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_mmap2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_pipe32.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_set_thread_area.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_sigaltstack.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_sysctl32.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/sysc_vm86_warning.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/x86_64/syscall_num.stp"
Searched: "/usr/share/systemtap/tapset/linux/x86_64", found: 20, processed: 20
Processing tapset "/usr/share/systemtap/tapset/linux/atomic.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/aux_syscalls.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/context-caller.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/context-envvar.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/context-symbols.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/context-unwind.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/context.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/conversions-guru.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/conversions.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ctime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/dentry.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/dev.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/endian.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/guru-delay.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/guru-signal.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/inet.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/inet_sock.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ioblock.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ioscheduler.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ip.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ipmib-filter-default.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ipmib.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/irq.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/json.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/kprocess.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/kretprobe.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/linuxmib-filter-default.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/linuxmib.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/loadavg.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/logging.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/memory.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/netfilter.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/networking.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/nfs.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/nfs_proc.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/nfsd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/nfsderrno.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/panic.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/perf.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/proc_mem.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/pstrace.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/rcu.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/rlimit.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/rpc.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/scheduler.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/scsi.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/signal.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/socket.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_accept.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_accept4.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_access.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_acct.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_add_key.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_adjtimex.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_alarm.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_bdflush.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_bind.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_bpf.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_brk.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_capget.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_capset.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_chdir.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_chmod.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_chown.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_chown16.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_chroot.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clock_adjtime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clock_getres.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clock_gettime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clock_nanosleep.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clock_settime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_clone.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_close.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_connect.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_copy_file_range.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_creat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_delete_module.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_dup.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_dup2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_dup3.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_epoll_create.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_epoll_ctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_epoll_pwait.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_epoll_wait.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_eventfd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_execve.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_execveat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_exit.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_exit_group.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_faccessat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fadvise64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fallocate.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fanotify_init.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fanotify_mark.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchdir.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchmod.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchmodat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchown.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchown16.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fchownat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fcntl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fdatasync.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fgetxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_finit_module.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_flistxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_flock.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fork.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fremovexattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fsetxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fstat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fstatat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fstatfs.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fstatfs64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_fsync.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ftruncate.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_futex.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_futimesat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_get_mempolicy.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_get_robust_list.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getcpu.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getcwd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getdents.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getegid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_geteuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getgroups.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_gethostname.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getitimer.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getpeername.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getpgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getpgrp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getpid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getppid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getpriority.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getrandom.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getresgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getresuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getrlimit.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getrusage.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getsid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getsockname.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getsockopt.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_gettid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_gettimeofday.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_getxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_init_module.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_inotify_add_watch.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_inotify_init.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_inotify_rm_watch.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_io_cancel.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_io_destroy.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_io_getevents.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_io_setup.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_io_submit.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ioctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ioperm.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ioprio_get.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ioprio_set.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_kcmp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_kexec_file_load.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_kexec_load.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_keyctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_kill.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lchown.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lchown16.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lgetxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_link.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_linkat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_listen.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_listxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_llistxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_llseek.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lookup_dcookie.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lremovexattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lseek.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lsetxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_lstat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_madvise.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mbind.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_membarrier.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_memfd_create.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_migrate_pages.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mincore.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mkdir.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mkdirat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mknod.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mknodat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mlock.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mlock2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mlockall.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mmap2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_modify_ldt.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mount.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_move_pages.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mprotect.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_getsetattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_notify.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_open.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_timedreceive.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_timedsend.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mq_unlink.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_mremap.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_msgctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_msgget.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_msgrcv.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_msgsnd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_msync.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_munlock.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_munlockall.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_munmap.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_name_to_handle_at.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_nanosleep.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_nfsservctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ni_syscall.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_nice.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_open.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_open_by_handle_at.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_openat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pause.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_perf_event_open.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_personality.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pipe.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pivot_root.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_poll.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ppoll.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_prctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pread.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_preadv.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_preadv2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_prlimit64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_process_vm_readv.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_process_vm_writev.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pselect6.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pselect7.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ptrace.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pwrite.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pwritev.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_pwritev2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_quotactl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_read.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_readahead.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_readdir.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_readlink.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_readlinkat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_readv.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_reboot.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_recv.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_recvfrom.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_recvmmsg.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_recvmsg.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_remap_file_pages.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_removexattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rename.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_renameat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_renameat2.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_request_key.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_restart_syscall.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rmdir.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigaction.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigpending.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigprocmask.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigqueueinfo.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigreturn.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigsuspend.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_sigtimedwait.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_rt_tgsigqueueinfo.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_get_priority_max.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_get_priority_min.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_getaffinity.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_getattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_getparam.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_getscheduler.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_rr_get_interval.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_setaffinity.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_setattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_setparam.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_setscheduler.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sched_yield.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_seccomp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_select.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_semctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_semget.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_semop.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_semtimedop.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_send.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sendfile.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sendmmsg.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sendmsg.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sendto.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_set_mempolicy.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_set_robust_list.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_set_tid_address.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setdomainname.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setfsgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setfsuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setgroups.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sethostname.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setitimer.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setns.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setpgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setpriority.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setregid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setresgid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setresuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setreuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setrlimit.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setsid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setsockopt.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_settimeofday.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setuid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_setxattr.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sgetmask.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_shmat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_shmctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_shmdt.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_shmget.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_shutdown.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigaction.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigaltstack.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_signal.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_signalfd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigpending.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigprocmask.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigreturn.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sigsuspend.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_socket.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_socketpair.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_splice.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ssetmask.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_stat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_statfs.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_statfs64.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_statx.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_stime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_swapoff.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_swapon.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_symlink.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_symlinkat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sync.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sync_file_range.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_syncfs.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sysctl.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sysfs.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_sysinfo.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_syslog.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_tee.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_tgkill.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_time.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timer_create.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timer_delete.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timer_getoverrun.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timer_gettime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timer_settime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timerfd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timerfd_create.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timerfd_gettime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_timerfd_settime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_times.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_tkill.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_truncate.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_tux.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_umask.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_umount.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_uname.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_unlink.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_unlinkat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_unshare.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_uselib.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_userfaultfd.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_ustat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_utime.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_utimensat.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_utimes.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_vfork.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_vhangup.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_vmsplice.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_wait4.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_waitid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_waitpid.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_write.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/sysc_writev.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/syscall_table.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/syscalls_cfg_trunc.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/target_set.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/task.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/task_ancestry.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/task_time.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/tcp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/tcpmib-filter-default.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/tcpmib.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/timestamp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/timestamp_gtod.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/timestamp_monotonic.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/tty.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/tzinfo.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ucontext-symbols.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ucontext-unwind.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/ucontext.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/udp.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/utrace.stp"
Processing tapset "/usr/share/systemtap/tapset/linux/vfs.stp"
Searched: "/usr/share/systemtap/tapset/linux", found: 403, processed: 403
Processing tapset "/usr/share/systemtap/tapset/x86_64/registers.stp"
Searched: "/usr/share/systemtap/tapset/x86_64", found: 1, processed: 1
Processing tapset "/usr/share/systemtap/tapset/ansi.stp"
Processing tapset "/usr/share/systemtap/tapset/argv.stp"
Processing tapset "/usr/share/systemtap/tapset/context.stp"
Processing tapset "/usr/share/systemtap/tapset/errno.stp"
Processing tapset "/usr/share/systemtap/tapset/indent-default.stp"
Processing tapset "/usr/share/systemtap/tapset/indent.stp"
Processing tapset "/usr/share/systemtap/tapset/init.stp"
Processing tapset "/usr/share/systemtap/tapset/input.stp"
Processing tapset "/usr/share/systemtap/tapset/java.stp"
Processing tapset "/usr/share/systemtap/tapset/logging.stp"
Processing tapset "/usr/share/systemtap/tapset/null.stp"
Processing tapset "/usr/share/systemtap/tapset/oneshot.stp"
Processing tapset "/usr/share/systemtap/tapset/pn.stp"
Processing tapset "/usr/share/systemtap/tapset/python2.stp"
Processing tapset "/usr/share/systemtap/tapset/python3.stp"
Processing tapset "/usr/share/systemtap/tapset/queue_stats.stp"
Processing tapset "/usr/share/systemtap/tapset/random.stp"
Processing tapset "/usr/share/systemtap/tapset/regex.stp"
Processing tapset "/usr/share/systemtap/tapset/registers.stp"
Processing tapset "/usr/share/systemtap/tapset/speculative.stp"
Processing tapset "/usr/share/systemtap/tapset/stap_staticmarkers.stp"
Processing tapset "/usr/share/systemtap/tapset/stopwatch.stp"
Processing tapset "/usr/share/systemtap/tapset/string.stp"
Processing tapset "/usr/share/systemtap/tapset/switchfile.stp"
Processing tapset "/usr/share/systemtap/tapset/system.stp"
Processing tapset "/usr/share/systemtap/tapset/timers.stp"
Processing tapset "/usr/share/systemtap/tapset/tokenize.stp"
Processing tapset "/usr/share/systemtap/tapset/tzinfo.stp"
Processing tapset "/usr/share/systemtap/tapset/uconversions-guru.stp"
Processing tapset "/usr/share/systemtap/tapset/uconversions.stp"
Searched: "/usr/share/systemtap/tapset", found: 30, processed: 30
Pass 1: parsed user script and 469 library scripts using 115808virt/51324res/7188shr/44168data kb, in 90usr/10sys/99real ms.
Attempting to extract kernel debuginfo build ID from /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux.id
Attempting to extract kernel debuginfo build ID from /sys/kernel/notes
blacklist regexps:
blfn: ^(atomic_notifier_call_chain|default_do_nmi|__die|die_nmi|do_debug|do_general_protection|do_int3|do_IRQ|do_page_fault|do_sparc64_fault|do_trap|dummy_nmi_callback|flush_icache_range|ia64_bad_break|ia64_do_page_fault|ia64_fault|io_check_error|mem_parity_error|nmi_watchdog_tick|notifier_call_chain|oops_begin|oops_end|program_check_exception|single_step_exception|sync_regs|unhandled_fault|unknown_nmi_error|xen_[gs]et_debugreg|xen_irq_.*|xen_.*_fl_direct.*|check_events|xen_adjust_exception_frame|xen_iret.*|xen_sysret64.*|test_ti_thread_flag.*|inat_get_opcode_attribute|system_call_after_swapgs|HYPERVISOR_[gs]et_debugreg|HYPERVISOR_event_channel_op|hash_64|hash_ptr|native_set_pte|.*raw_.*_lock.*|.*raw_.*_unlock.*|.*raw_.*_trylock.*|.*read_lock.*|.*read_unlock.*|.*read_trylock.*|.*write_lock.*|.*write_unlock.*|.*write_trylock.*|.*write_seqlock.*|.*write_sequnlock.*|.*spin_lock.*|.*spin_unlock.*|.*spin_trylock.*|.*spin_is_locked.*|rwsem_.*lock.*|.*mutex_.*lock.*|atomic_.*|atomic64_.*|get_bh|put_bh|.*apic.*|.*APIC.*|.*softirq.*|.*IRQ.*|.*_intr.*|__delay|.*kernel_text.*|get_current|current_.*|.*exception_tables.*|.*setup_rt_frame.*|.*preempt_count.*|preempt_schedule|__switch_to|special_mapping_.*|.*_pte_.*)$
blfn_ret: ^(do_exit|sys_exit|sys_exit_group)$
blfile: ^(kernel/kprobes\.c|arch/.*/kernel/kprobes\.c|.*/include/asm/io\.h|.*/include/asm/io-defs\.h|.*/include/asm/io_64\.h|.*/include/asm/bitops\.h|drivers/ide/ide-iops\.c|arch/.*/kernel/paravirt\.c|.*/include/asm/paravirt\.h|fs/seq_file\.c)$
blsection: ^(\.init\.|\.exit\.|\.devinit\.|\.devexit\.|\.cpuinit\.|\.cpuexit\.|\.meminit\.|\.memexit\.)
parse 'kbd_event', func 'kbd_event'
focused on module 'kernel' = [0xffffffff81000000-0xffffffff8268d000, bias 0 file /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux ELF machine |x86_64 (code 62)
focused on module 'kernel'
selected function kbd_event
suggesting 60564 dwarf functions from modules:
kernel
semantic error: while resolving probe point: identifier 'kernel' at <input>:1:7
   thrown from: elaborate.cxx:1080
        source: probe kernel.function("kbd_event") {}
                      ^

semantic error: no match (similar functions: kbd_event, pps_event, put_event, bd_mount, dock_event)
   thrown from: tapsets.cxx:8685
Pass 2: analyzed script: 0 probes, 0 functions, 0 embeds, 0 globals using 179128virt/115992res/8496shr/107488data kb, in 610usr/10sys/618real ms.
Running rm -rf /tmp/stapKcC4W6
Spawn waitpid result (0x0): 0
Removed temporary directory "/tmp/stapKcC4W6"
$ stap -vv -L "syscall.read"
Systemtap translator/driver (version 3.2/0.171, non-git sources)
Copyright (C) 2005-2017 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
tested kernel versions: 2.6.18 ... 4.11
enabled features: AVAHI PYTHON2 PYTHON3 LIBSQLITE3 LIBXML2 NLS NSS READLINE
Created temporary directory "/tmp/stapm7mCg2"
Session arch: x86_64 release: 4.17.14-arch1-1-ARCH
Searched for library macro files: "/usr/share/systemtap/tapset/linux", found: 6, processed: 6
Searched for library macro files: "/usr/share/systemtap/tapset", found: 9, processed: 9
Searched: "/usr/share/systemtap/tapset/linux/x86_64", found: 20, processed: 20
Searched: "/usr/share/systemtap/tapset/linux", found: 403, processed: 403
Searched: "/usr/share/systemtap/tapset/x86_64", found: 1, processed: 1
Searched: "/usr/share/systemtap/tapset", found: 30, processed: 30
Pass 1: parsed user script and 469 library scripts using 115800virt/51404res/7272shr/44160data kb, in 80usr/10sys/96real ms.
Attempting to extract kernel debuginfo build ID from /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux.id
Attempting to extract kernel debuginfo build ID from /sys/kernel/notes
focused on module 'kernel' = [0xffffffff81000000-0xffffffff8268d000, bias 0 file /lib/modules/4.17.14-arch1-1-ARCH/build/vmlinux ELF machine |x86_64 (code 62)
semantic error: resolution failed in alias expansion builder
   thrown from: elaborate.cxx:1092
semantic error: while resolving probe point: identifier 'syscall' at <input>:1:7
   thrown from: elaborate.cxx:1080
        source: probe syscall.read {}
                      ^

semantic error: no match
   thrown from: elaborate.cxx:1043
Pass 2: analyzed script: 0 probes, 0 functions, 0 embeds, 0 globals using 178856virt/115820res/8644shr/107216data kb, in 640usr/30sys/674real ms.
Running rm -rf /tmp/stapm7mCg2
Spawn waitpid result (0x0): 0
Removed temporary directory "/tmp/stapm7mCg2"

Last edited by soylens (2018-08-12 18:21:14)

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#3 2018-08-13 09:56:11

soylens
Member
Registered: 2018-08-12
Posts: 7

Re: [SOLVED]Systemtap does not find some symbols correctly

The problem is likely a BUG influencing Systemtap 3.2, same issues cannot be reproduced with Systemtap built on git source

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