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Message-ID: <CAKecwXBZrjTcLO62CMh_zDCX1iSC_zN5GLCthAVqs-nw346A-g@mail.gmail.com> Date: Tue, 3 Dec 2019 10:23:05 -0300 From: Santiago Pastorino <spastorino@...il.com> To: linux-kernel@...r.kernel.org Subject: Re: perf trace segfault I'm attaching `valgrind -v perf trace` log below ... ==5275== Memcheck, a memory error detector ==5275== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==5275== Using Valgrind-3.15.0-608cb11914-20190413X and LibVEX; rerun with -h for copyright info ==5275== Command: perf trace ==5275== Parent PID: 5134 ==5275== --5275-- --5275-- Valgrind options: --5275-- --log-file=valgrind.log --5275-- -v --5275-- Contents of /proc/version: --5275-- Linux version 5.4.1-arch1-1 (linux@...hlinux) (gcc version 9.2.0 (GCC)) #1 SMP PREEMPT Fri, 29 Nov 2019 13:37:24 +0000 --5275-- --5275-- Arch and hwcaps: AMD64, LittleEndian, amd64-cx16-lzcnt-rdtscp-sse3-ssse3-avx-avx2-bmi-f16c-rdrand --5275-- Page sizes: currently 4096, max supported 4096 --5275-- Valgrind library directory: /usr/lib/valgrind --5275-- Reading syms from /usr/bin/perf --5275-- Reading syms from /usr/lib/ld-2.30.so --5275-- Reading syms from /usr/lib/valgrind/memcheck-amd64-linux --5275-- object doesn't have a dynamic symbol table --5275-- Scheduler: using generic scheduler lock implementation. --5275-- Reading suppressions file: /usr/lib/valgrind/default.supp ==5275== embedded gdbserver: reading from /tmp/vgdb-pipe-from-vgdb-to-5275-by-root-on-??? ==5275== embedded gdbserver: writing to /tmp/vgdb-pipe-to-vgdb-from-5275-by-root-on-??? ==5275== embedded gdbserver: shared mem /tmp/vgdb-pipe-shared-mem-vgdb-5275-by-root-on-??? ==5275== ==5275== TO CONTROL THIS PROCESS USING vgdb (which you probably ==5275== don't want to do, unless you know exactly what you're doing, ==5275== or are doing some strange experiment): ==5275== /usr/lib/valgrind/../../bin/vgdb --pid=5275 ...command... ==5275== ==5275== TO DEBUG THIS PROCESS USING GDB: start GDB like this ==5275== /path/to/gdb perf ==5275== and then give GDB the following command ==5275== target remote | /usr/lib/valgrind/../../bin/vgdb --pid=5275 ==5275== --pid is optional if only one valgrind process is running ==5275== --5275-- REDIR: 0x40203a0 (ld-linux-x86-64.so.2:strlen) redirected to 0x580c7532 (vgPlain_amd64_linux_REDIR_FOR_strlen) --5275-- REDIR: 0x4020170 (ld-linux-x86-64.so.2:index) redirected to 0x580c754c (vgPlain_amd64_linux_REDIR_FOR_index) --5275-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so --5275-- Reading syms from /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so ==5275== WARNING: new redirection conflicts with existing -- ignoring it --5275-- old: 0x040203a0 (strlen ) R-> (0000.0) 0x580c7532 vgPlain_amd64_linux_REDIR_FOR_strlen --5275-- new: 0x040203a0 (strlen ) R-> (2007.0) 0x0483bda0 strlen --5275-- REDIR: 0x401cb80 (ld-linux-x86-64.so.2:strcmp) redirected to 0x483cc90 (strcmp) --5275-- REDIR: 0x4020900 (ld-linux-x86-64.so.2:mempcpy) redirected to 0x4840670 (mempcpy) --5275-- Reading syms from /usr/lib/libpthread-2.30.so --5275-- Reading syms from /usr/lib/librt-2.30.so --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libm-2.30.so --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libdl-2.30.so --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libelf-0.177.so --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libdw-0.177.so --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libunwind-x86_64.so.8.0.1 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libunwind.so.8.0.1 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/liblzma.so.5.2.4 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libslang.so.2.3.2 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libz.so.1.2.11 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libzstd.so.1.4.3 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libcap.so.2.27 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libnuma.so.1.0.0 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libc-2.30.so --5275-- Reading syms from /usr/lib/libbz2.so.1.0.8 --5275-- object doesn't have a symbol table --5275-- Reading syms from /usr/lib/libgcc_s.so.1 --5275-- REDIR: 0x5103c60 (libc.so.6:memmove) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102fe0 (libc.so.6:strncpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103f90 (libc.so.6:strcasecmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102900 (libc.so.6:strcat) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103040 (libc.so.6:rindex) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5105330 (libc.so.6:rawmemchr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511d800 (libc.so.6:wmemchr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511d340 (libc.so.6:wcscmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103dc0 (libc.so.6:mempcpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103bf0 (libc.so.6:bcmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102f70 (libc.so.6:strncmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x51029b0 (libc.so.6:strcmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103d20 (libc.so.6:memset) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511d300 (libc.so.6:wcschr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102ed0 (libc.so.6:strnlen) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102a90 (libc.so.6:strcspn) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103fe0 (libc.so.6:strncasecmp) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102a30 (libc.so.6:strcpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5104130 (libc.so.6:memcpy@@GLIBC_2.14) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511ea50 (libc.so.6:wcsnlen) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511d380 (libc.so.6:wcscpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103080 (libc.so.6:strpbrk) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102960 (libc.so.6:index) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5102e90 (libc.so.6:strlen) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5109760 (libc.so.6:memrchr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5104030 (libc.so.6:strcasecmp_l) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103bb0 (libc.so.6:memchr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x511d450 (libc.so.6:wcslen) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103340 (libc.so.6:strspn) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103f30 (libc.so.6:stpncpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103ed0 (libc.so.6:stpcpy) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5105370 (libc.so.6:strchrnul) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5104080 (libc.so.6:strncasecmp_l) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5180ed0 (libc.so.6:__memcpy_chk) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x5103ad0 (libc.so.6:strstr) redirected to 0x482e1c0 (_vgnU_ifunc_wrapper) --5275-- REDIR: 0x51d5510 (libc.so.6:__strrchr_avx2) redirected to 0x483b7b0 (rindex) --5275-- REDIR: 0x50fee10 (libc.so.6:malloc) redirected to 0x4838710 (malloc) --5275-- REDIR: 0x51037f0 (libc.so.6:__GI_strstr) redirected to 0x48408c0 (__strstr_sse2) --5275-- REDIR: 0x51d1540 (libc.so.6:__memchr_avx2) redirected to 0x483cd10 (memchr) --5275-- REDIR: 0x51d86f0 (libc.so.6:__memcpy_avx_unaligned_erms) redirected to 0x483f690 (memmove) --5275-- REDIR: 0x50ff450 (libc.so.6:free) redirected to 0x4839940 (free) --5275-- REDIR: 0x50ffb90 (libc.so.6:calloc) redirected to 0x483aab0 (calloc) --5275-- REDIR: 0x51d5320 (libc.so.6:__strchrnul_avx2) redirected to 0x48401e0 (strchrnul) --5275-- REDIR: 0x51d86d0 (libc.so.6:__mempcpy_avx_unaligned_erms) redirected to 0x48402f0 (mempcpy) --5275-- REDIR: 0x51047a0 (libc.so.6:strcasestr) redirected to 0x4840b70 (strcasestr) --5275-- REDIR: 0x511bfa0 (libc.so.6:__strstr_sse2_unaligned) redirected to 0x4840850 (strstr) --5275-- REDIR: 0x51d56e0 (libc.so.6:__strlen_avx2) redirected to 0x483bc80 (strlen) --5275-- REDIR: 0x50ff6c0 (libc.so.6:realloc) redirected to 0x483ad00 (realloc) --5275-- REDIR: 0x51d1020 (libc.so.6:__strncmp_avx2) redirected to 0x483c370 (strncmp) --5275-- REDIR: 0x50b22f0 (libc.so.6:setenv) redirected to 0x4841040 (setenv) --5275-- REDIR: 0x51d50f0 (libc.so.6:__strchr_avx2) redirected to 0x483b930 (index) --5275-- REDIR: 0x51d8b70 (libc.so.6:__memset_avx2_unaligned_erms) redirected to 0x483f580 (memset) --5275-- REDIR: 0x51d0be0 (libc.so.6:__strcmp_avx2) redirected to 0x483cb90 (strcmp) --5275-- REDIR: 0x51d6c20 (libc.so.6:__strcpy_avx2) redirected to 0x483bdd0 (strcpy) --5275-- REDIR: 0x51d5ba0 (libc.so.6:__strcat_avx2) redirected to 0x483b960 (strcat) --5275-- REDIR: 0x51d6fb0 (libc.so.6:__strncpy_avx2) redirected to 0x483bf70 (strncpy) --5275-- REDIR: 0x51d20b0 (libc.so.6:__strcasecmp_avx) redirected to 0x483c530 (strcasecmp) --5275-- memcheck GC: 1000 nodes, 23 survivors (2.3%) --5275-- REDIR: 0x51d0ab0 (libc.so.6:__strspn_sse42) redirected to 0x4840ae0 (strspn) --5275-- REDIR: 0x51d0830 (libc.so.6:__strcspn_sse42) redirected to 0x4840a00 (strcspn) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- memcheck GC: 1000 nodes, 44 survivors (4.4%) --5275-- REDIR: 0x51d5880 (libc.so.6:__strnlen_avx2) redirected to 0x483bc20 (strnlen) --5275-- REDIR: 0x51d0970 (libc.so.6:__strpbrk_sse42) redirected to 0x48409a0 (strpbrk) --5275-- REDIR: 0x51d1810 (libc.so.6:__rawmemchr_avx2) redirected to 0x4840210 (rawmemchr) --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- WARNING: unhandled amd64-linux syscall: 308 ==5275== at 0x517411B: setns (in /usr/lib/libc-2.30.so) ==5275== by 0x3EC29A: nsinfo__mountns_enter (namespaces.c:233) ==5275== by 0x3C0575: open_dso (dso.c:526) ==5275== by 0x3C2D61: try_to_open_dso (dso.c:661) ==5275== by 0x3C2D61: dso__data_get_fd (dso.c:690) ==5275== by 0x3C2D61: dso__type (dso.c:1321) ==5275== by 0x413EBB: machine__thread_dso_type (vdso.c:151) ==5275== by 0x413EBB: machine__find_vdso (vdso.c:294) ==5275== by 0x413EBB: machine__findnew_vdso (vdso.c:332) ==5275== by 0x3E1EAD: map__new (map.c:198) ==5275== by 0x3E00EF: machine__process_mmap2_event (machine.c:1697) ==5275== by 0x4210A0: perf_tool__process_synth_event (synthetic-events.c:63) ==5275== by 0x4210A0: perf_event__synthesize_mmap_events (synthetic-events.c:403) ==5275== by 0x4217A7: __event__synthesize_thread (synthetic-events.c:548) ==5275== by 0x421BE3: __perf_event__synthesize_threads (synthetic-events.c:681) ==5275== by 0x422126: perf_event__synthesize_threads.part.0 (synthetic-events.c:750) ==5275== by 0x3601E9: trace__symbols_init (builtin-trace.c:1418) ==5275== by 0x3601E9: trace__run (builtin-trace.c:3340) ==5275== by 0x3601E9: cmd_trace (builtin-trace.c:4423) --5275-- You may be able to write your own handler. --5275-- Read the file README_MISSING_SYSCALL_OR_IOCTL. --5275-- Nevertheless we consider this a bug. Please report --5275-- it at http://valgrind.org/support/bug_reports.html. --5275-- REDIR: 0x51d7910 (libc.so.6:__stpcpy_avx2) redirected to 0x483efa0 (stpcpy) ==5275== Invalid write of size 8 ==5275== at 0x35775D: syscall__set_arg_fmts (builtin-trace.c:1490) ==5275== by 0x35775D: trace__read_syscall_info.isra.0 (builtin-trace.c:1552) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae0 is 0 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== Invalid read of size 8 ==5275== at 0x3586C1: syscall__mask_val (builtin-trace.c:1685) ==5275== by 0x3586C1: syscall__scnprintf_args (builtin-trace.c:1744) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae8 is 8 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== Invalid read of size 8 ==5275== at 0x358798: syscall__scnprintf_val (builtin-trace.c:1694) ==5275== by 0x358798: syscall__scnprintf_args (builtin-trace.c:1765) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae0 is 0 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== Invalid read of size 8 ==5275== at 0x3587A0: syscall__scnprintf_val (builtin-trace.c:1696) ==5275== by 0x3587A0: syscall__scnprintf_args (builtin-trace.c:1765) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424af0 is 16 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== Jump to the invalid address stated on the next line ==5275== at 0xFFFFFFFF: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0xffffffff is not stack'd, malloc'd or (recently) free'd ==5275== ==5275== Warning: invalid file descriptor -1 in syscall close() ==5275== at 0x48926F7: close (in /usr/lib/libpthread-2.30.so) ==5275== by 0x4A89CDB: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A897F2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8A0C2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A88F5F: backtrace (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x3DACC3: dump_stack (debug.c:263) ==5275== by 0x3DACC3: sighandler_dump_stack (debug.c:281) ==5275== by 0x50AFFAF: ??? (in /usr/lib/libc-2.30.so) ==5275== by 0xFFFFFFFE: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== Warning: invalid file descriptor -1 in syscall close() ==5275== at 0x48926F7: close (in /usr/lib/libpthread-2.30.so) ==5275== by 0x4A89CEE: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A897F2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8A0C2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A88F5F: backtrace (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x3DACC3: dump_stack (debug.c:263) ==5275== by 0x3DACC3: sighandler_dump_stack (debug.c:281) ==5275== by 0x50AFFAF: ??? (in /usr/lib/libc-2.30.so) ==5275== by 0xFFFFFFFE: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== Syscall param write(buf) points to uninitialised byte(s) ==5275== at 0x516DE9D: syscall (in /usr/lib/libc-2.30.so) ==5275== by 0x4A89B62: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A89913: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8E60D: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8EB0B: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8A951: _ULx86_64_step (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8B5B2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A88F74: backtrace (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x3DACC3: dump_stack (debug.c:263) ==5275== by 0x3DACC3: sighandler_dump_stack (debug.c:281) ==5275== by 0x50AFFAF: ??? (in /usr/lib/libc-2.30.so) ==5275== by 0xFFFFFFFE: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== Address 0x1ffeffb000 is on thread 1's stack ==5275== in frame #5, created by _ULx86_64_step (???:) ==5275== ==5275== ==5275== Process terminating with default action of signal 11 (SIGSEGV): dumping core ==5275== at 0x4893793: raise (in /usr/lib/libpthread-2.30.so) ==5275== by 0x3DAD2A: sighandler_dump_stack (debug.c:283) ==5275== by 0x50AFFAF: ??? (in /usr/lib/libc-2.30.so) ==5275== by 0xFFFFFFFE: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== HEAP SUMMARY: ==5275== in use at exit: 2,945,429 bytes in 20,148 blocks ==5275== total heap usage: 108,615 allocs, 88,467 frees, 151,839,107 bytes allocated ==5275== ==5275== Searching for pointers to 20,148 not-freed blocks ==5275== Checked 12,224,960 bytes ==5275== ==5275== LEAK SUMMARY: ==5275== definitely lost: 96 bytes in 11 blocks ==5275== indirectly lost: 0 bytes in 0 blocks ==5275== possibly lost: 426,466 bytes in 8,502 blocks ==5275== still reachable: 2,518,867 bytes in 11,635 blocks ==5275== suppressed: 0 bytes in 0 blocks ==5275== Rerun with --leak-check=full to see details of leaked memory ==5275== ==5275== Use --track-origins=yes to see where uninitialised values come from ==5275== ERROR SUMMARY: 1502 errors from 6 contexts (suppressed: 0 from 0) ==5275== ==5275== 1 errors in context 1 of 6: ==5275== Jump to the invalid address stated on the next line ==5275== at 0xFFFFFFFF: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0xffffffff is not stack'd, malloc'd or (recently) free'd ==5275== ==5275== ==5275== 2 errors in context 2 of 6: ==5275== Syscall param write(buf) points to uninitialised byte(s) ==5275== at 0x516DE9D: syscall (in /usr/lib/libc-2.30.so) ==5275== by 0x4A89B62: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A89913: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8E60D: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8EB0B: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8A951: _ULx86_64_step (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A8B5B2: ??? (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x4A88F74: backtrace (in /usr/lib/libunwind.so.8.0.1) ==5275== by 0x3DACC3: dump_stack (debug.c:263) ==5275== by 0x3DACC3: sighandler_dump_stack (debug.c:281) ==5275== by 0x50AFFAF: ??? (in /usr/lib/libc-2.30.so) ==5275== by 0xFFFFFFFE: ??? ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== Address 0x1ffeffb000 is on thread 1's stack ==5275== in frame #5, created by _ULx86_64_step (???:) ==5275== ==5275== ==5275== 5 errors in context 3 of 6: ==5275== Invalid write of size 8 ==5275== at 0x35775D: syscall__set_arg_fmts (builtin-trace.c:1490) ==5275== by 0x35775D: trace__read_syscall_info.isra.0 (builtin-trace.c:1552) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae0 is 0 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== ==5275== 498 errors in context 4 of 6: ==5275== Invalid read of size 8 ==5275== at 0x3587A0: syscall__scnprintf_val (builtin-trace.c:1696) ==5275== by 0x3587A0: syscall__scnprintf_args (builtin-trace.c:1765) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424af0 is 16 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== ==5275== 498 errors in context 5 of 6: ==5275== Invalid read of size 8 ==5275== at 0x358798: syscall__scnprintf_val (builtin-trace.c:1694) ==5275== by 0x358798: syscall__scnprintf_args (builtin-trace.c:1765) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae0 is 0 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== ==5275== 498 errors in context 6 of 6: ==5275== Invalid read of size 8 ==5275== at 0x3586C1: syscall__mask_val (builtin-trace.c:1685) ==5275== by 0x3586C1: syscall__scnprintf_args (builtin-trace.c:1744) ==5275== by 0x35A311: trace__sys_enter (builtin-trace.c:1994) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== Address 0x5424ae8 is 8 bytes after a block of size 0 alloc'd ==5275== at 0x483AB65: calloc (vg_replace_malloc.c:762) ==5275== by 0x3571A2: syscall__alloc_arg_fmts (builtin-trace.c:1443) ==5275== by 0x3571A2: trace__read_syscall_info.isra.0 (builtin-trace.c:1532) ==5275== by 0x357875: trace__syscall_info (builtin-trace.c:1825) ==5275== by 0x35A1D6: trace__sys_enter (builtin-trace.c:1955) ==5275== by 0x356BDB: trace__handle_event (builtin-trace.c:2707) ==5275== by 0x356BDB: __trace__deliver_event (builtin-trace.c:3218) ==5275== by 0x36120B: trace__deliver_event (builtin-trace.c:3245) ==5275== by 0x36120B: trace__run (builtin-trace.c:3459) ==5275== by 0x36120B: cmd_trace (builtin-trace.c:4423) ==5275== by 0x390162: run_builtin (perf.c:312) ==5275== by 0x30B32B: handle_internal_command (perf.c:364) ==5275== by 0x30B32B: run_argv (perf.c:408) ==5275== by 0x30B32B: main (perf.c:538) ==5275== ==5275== ERROR SUMMARY: 1502 errors from 6 contexts (suppressed: 0 from 0) On Mon, Nov 18, 2019 at 9:33 AM Santiago Pastorino <spastorino@...il.com> wrote: > > Hi, > > I'm currently running Linux kernel 5.3.11-arch1-1 and I'm getting a segfault > when I run `perf trace` after some seconds. > Here I'm pasting the backtrace: > > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00007fdbb2615a40 in main_arena () from /usr/lib/libc.so.6 > (gdb) bt > #0 0x00007fdbb2615a40 in main_arena () from /usr/lib/libc.so.6 > #1 0x0000562fc44e22d7 in syscall__scnprintf_val (sc=0x562fc50cc4a0, > val=6, arg=0x7ffd10440870, size=2021, bf=0x562fc52b722b "") at > builtin-trace.c:1649 > #2 syscall__scnprintf_args (sc=sc@...ry=0x562fc50cc4a0, > bf=0x562fc52b721b "fd: 223, level: ", size=2037, > args=args@...ry=0x7fdbb21a118c <error: Cannot access memory at address > 0x7fdbb21a118c>, augmented_args=augmented_args@...ry=0x0, > augmented_args_size=augmented_args_size@...ry=0, trace=0x7ffd10440fa0, > thread=0x562fc51da000) at builtin-trace.c:1716 > #3 0x0000562fc44e3e22 in trace__sys_enter (trace=0x7ffd10440fa0, > evsel=<optimized out>, event=<optimized out>, sample=0x7ffd10440990) > at builtin-trace.c:1935 > #4 0x0000562fc44e11ac in trace__handle_event (sample=0x7ffd10440990, > event=0x7fdbb21a1140, trace=0x7ffd10440fa0) at builtin-trace.c:2645 > #5 __trace__deliver_event (trace=trace@...ry=0x7ffd10440fa0, > event=0x7fdbb21a1140) at builtin-trace.c:2899 > #6 0x0000562fc44ea7dc in trace__deliver_event (event=<optimized out>, > trace=0x7ffd10440fa0) at builtin-trace.c:2926 > #7 trace__run (argv=<optimized out>, argc=<optimized out>, > trace=0x7ffd10440fa0) at builtin-trace.c:3124 > #8 cmd_trace (argc=<optimized out>, argv=<optimized out>) at > builtin-trace.c:4060 > #9 0x0000562fc4519043 in run_builtin (p=0x562fc4a026c0 <commands+576>, > argc=1, argv=0x7ffd10444560) at perf.c:304 > #10 0x0000562fc44952fc in handle_internal_command (argv=<optimized > out>, argc=<optimized out>) at perf.c:356 > #11 run_argv (argcp=<optimized out>, argv=<optimized out>) at perf.c:400 > #12 main (argc=1, argv=0x7ffd10444560) at perf.c:522 > (gdb) quit > > # perf --version > perf version 5.3.g4d856f72c10e > > Thanks for reading and feel free to cc me in replies since I'm not > subscribed to lkml.
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