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Message-ID: <aQt66zhfxSA80xwt@gentoo.org>
Date: Wed, 5 Nov 2025 17:27:23 +0100
From: Guilherme Amadio <amadio@...too.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: namhyung@...nel.org, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org
Subject: Crash when running perf top with perf-6.17.7
Hi Arnaldo,
After updating to perf-6.17.7, perf top crashes for me (seems to happen
since perf-6.17, but doesn't happen with perf-6.16):
gentoo perf $ perf top
perf: Segmentation fault
-------- backtrace --------
perf: Segmentation fault
-------- backtrace --------
Segmentation fault (core dumped) perf top
The stack trace from the crash is below. If this is not enough information,
please let me know what additional information you'd like to have.
Best regards,
-Guilherme
Core was generated by `perf top'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 close_one () at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:197
warning: 197 /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c: No such file or directory
[Current thread is 1 (Thread 0x7f8769c466c0 (LWP 144140))]
(gdb) bt
#0 close_one () at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:197
#1 0x00007f87885286dd in _bfd_cache_init_unlocked (abfd=abfd@...ry=0x5567f738eb40) at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:561
#2 0x00007f8788529021 in bfd_cache_init (abfd=abfd@...ry=0x5567f738eb40) at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:587
#3 0x00007f878853618a in bfd_fopen (filename=filename@...ry=0x7f8769c3fa98 "/usr/bin/perf", target=target@...ry=0x0, mode=0x7f878860c4b9 "r", fd=84)
at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/opncls.c:291
#4 0x00007f87885363c9 in bfd_fdopenr (filename=filename@...ry=0x7f8769c3fa98 "/usr/bin/perf", target=target@...ry=0x0, fd=<optimized out>)
at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/opncls.c:407
#5 0x00005567c5cf4436 in read_build_id (filename=filename@...ry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@...ry=0x7f8769c3d8f0, block=block@...ry=false)
at util/symbol-elf.c:886
#6 0x00005567c5cf7240 in filename__read_build_id (filename=filename@...ry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@...ry=0x7f8769c3d8f0, block=block@...ry=false)
at util/symbol-elf.c:968
#7 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@...ry=0x7f8769c3fa50, machine=machine@...ry=0x5567f7392a00, is_kernel=is_kernel@...ry=false)
at util/synthetic-events.c:404
#8 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@...ry=0x0, event=event@...ry=0x7f8769c3fa50, pid=pid@...ry=144076, tgid=tgid@...ry=144076,
process=process@...ry=0x5567c5c5d491 <mmap_handler>, machine=machine@...ry=0x5567f7392a00, mmap_data=true) at util/synthetic-events.c:536
#9 0x00005567c5c598fb in machine__init_live (machine=machine@...ry=0x5567f7392a00, pid=pid@...ry=144076) at util/machine.c:167
#10 0x00005567c5c5b987 in machine__new_live (host_env=host_env@...ry=0x7f8769c40b70, kernel_maps=kernel_maps@...ry=false, pid=pid@...ry=144076) at util/machine.c:178
#11 0x00005567c5c56b13 in __dump_stack (file=0x7f87887f25c0 <_IO_2_1_stdout_>, stackdump=stackdump@...ry=0x7f8769c40d90, stackdump_size=15) at util/debug.c:318
#12 0x00005567c5bfb299 in ui__signal_backtrace (sig=<optimized out>) at ui/tui/setup.c:111
#13 <signal handler called>
#14 close_one () at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:197
#15 0x00007f87885286dd in _bfd_cache_init_unlocked (abfd=abfd@...ry=0x5567f738e8c0) at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:561
#16 0x00007f8788529021 in bfd_cache_init (abfd=abfd@...ry=0x5567f738e8c0) at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/cache.c:587
#17 0x00007f878853618a in bfd_fopen (filename=filename@...ry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@...ry=0x0, mode=0x7f878860c4b9 "r", fd=63)
at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/opncls.c:291
#18 0x00007f87885363c9 in bfd_fdopenr (filename=filename@...ry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@...ry=0x0, fd=<optimized out>)
at /tmp/portage/sys-libs/binutils-libs-2.45-r1/work/binutils-2.45/bfd/opncls.c:407
#19 0x00005567c5cf4436 in read_build_id (filename=filename@...ry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@...ry=0x7f8769c425d0, block=block@...ry=false)
at util/symbol-elf.c:886
#20 0x00005567c5cf7240 in filename__read_build_id (filename=filename@...ry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@...ry=0x7f8769c425d0,
block=block@...ry=false) at util/symbol-elf.c:968
#21 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@...ry=0x5567f73ca000, machine=machine@...ry=0x5567f7280b18, is_kernel=is_kernel@...ry=false)
at util/synthetic-events.c:404
#22 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@...ry=0x0, event=event@...ry=0x5567f73ca000, pid=pid@...ry=5227, tgid=5227,
process=process@...ry=0x5567c5c19264 <perf_event__process>, machine=machine@...ry=0x5567f7280b18, mmap_data=false) at util/synthetic-events.c:536
#23 0x00005567c5cac2a5 in __event__synthesize_thread (comm_event=comm_event@...ry=0x5567f73c8060, mmap_event=mmap_event@...ry=0x5567f73ca000,
fork_event=fork_event@...ry=0x5567f73c8080, namespaces_event=namespaces_event@...ry=0x5567f7246870, pid=5227, full=full@...ry=1,
process=0x5567c5c19264 <perf_event__process>, tool=0x0, machine=0x5567f7280b18, needs_mmap=true, mmap_data=false) at util/synthetic-events.c:851
#24 0x00005567c5cac50d in __perf_event__synthesize_threads (tool=0x0, process=0x5567c5c19264 <perf_event__process>, machine=0x5567f7280b18, needs_mmap=true,
mmap_data=false, dirent=0x5567f7377400, start=475, num=19) at util/synthetic-events.c:986
#25 0x00005567c5cac5c4 in synthesize_threads_worker (arg=<optimized out>) at util/synthetic-events.c:1018
#26 0x00007f87886c0379 in start_thread (arg=<optimized out>) at pthread_create.c:448
#27 0x00007f8788728fac in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
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