* Crash when running perf top with perf-6.17.7
@ 2025-11-05 16:27 Guilherme Amadio
2025-11-05 17:07 ` Ian Rogers
0 siblings, 1 reply; 3+ messages in thread
From: Guilherme Amadio @ 2025-11-05 16:27 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo; +Cc: namhyung, linux-kernel, linux-perf-users
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@entry=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@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
at util/symbol-elf.c:886
#6 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
at util/symbol-elf.c:968
#7 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x7f8769c3fa50, machine=machine@entry=0x5567f7392a00, is_kernel=is_kernel@entry=false)
at util/synthetic-events.c:404
#8 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x7f8769c3fa50, pid=pid@entry=144076, tgid=tgid@entry=144076,
process=process@entry=0x5567c5c5d491 <mmap_handler>, machine=machine@entry=0x5567f7392a00, mmap_data=true) at util/synthetic-events.c:536
#9 0x00005567c5c598fb in machine__init_live (machine=machine@entry=0x5567f7392a00, pid=pid@entry=144076) at util/machine.c:167
#10 0x00005567c5c5b987 in machine__new_live (host_env=host_env@entry=0x7f8769c40b70, kernel_maps=kernel_maps@entry=false, pid=pid@entry=144076) at util/machine.c:178
#11 0x00005567c5c56b13 in __dump_stack (file=0x7f87887f25c0 <_IO_2_1_stdout_>, stackdump=stackdump@entry=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@entry=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@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0, block=block@entry=false)
at util/symbol-elf.c:886
#20 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0,
block=block@entry=false) at util/symbol-elf.c:968
#21 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x5567f73ca000, machine=machine@entry=0x5567f7280b18, is_kernel=is_kernel@entry=false)
at util/synthetic-events.c:404
#22 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x5567f73ca000, pid=pid@entry=5227, tgid=5227,
process=process@entry=0x5567c5c19264 <perf_event__process>, machine=machine@entry=0x5567f7280b18, mmap_data=false) at util/synthetic-events.c:536
#23 0x00005567c5cac2a5 in __event__synthesize_thread (comm_event=comm_event@entry=0x5567f73c8060, mmap_event=mmap_event@entry=0x5567f73ca000,
fork_event=fork_event@entry=0x5567f73c8080, namespaces_event=namespaces_event@entry=0x5567f7246870, pid=5227, full=full@entry=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
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Crash when running perf top with perf-6.17.7
2025-11-05 16:27 Crash when running perf top with perf-6.17.7 Guilherme Amadio
@ 2025-11-05 17:07 ` Ian Rogers
2025-11-06 19:19 ` Namhyung Kim
0 siblings, 1 reply; 3+ messages in thread
From: Ian Rogers @ 2025-11-05 17:07 UTC (permalink / raw)
To: Guilherme Amadio
Cc: Arnaldo Carvalho de Melo, namhyung, linux-kernel,
linux-perf-users
On Wed, Nov 5, 2025 at 8:36 AM Guilherme Amadio <amadio@gentoo.org> wrote:
>
> 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.
This is a BUILD_NONDISTRO=1 build that is default off and
non-distributable as libbfd is incompatible with perf's GPLv2 license.
I think the perf libbfd code should just be deleted so we can focus
energy on distributable code.
Most recently the libbfd code was factored into its own file:
https://lore.kernel.org/lkml/20250929190805.201446-5-irogers@google.com/
we still don't have the dlopen support:
https://lore.kernel.org/lkml/20251007163835.3152881-1-irogers@google.com/
even though shipping with libLLVM/capstone linked (ie not dlopen)
isn't possible in distributions like SuSE:
https://lore.kernel.org/linux-perf-users/aPkivW2WoySU1Zkc@suse.de/
For addr2line the fallback options are fairly clear (LLVM first, then
libbfd then the forked command):
https://web.git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/util/srcline.c?h=perf-tools-next#n117
there should probably be a similar clean up for read build id. That
said, the symbol-minimal.c code:
https://web.git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/util/symbol-minimal.c?h=perf-tools-next#n33
has no library or forked tool dependencies, so perhaps we can just use
this for all our build ID needs.
I'll see if there's a cleanup for read build id similar to the
addr2line cleanup that can be done and try to fix the libbfd
implementation in the process. However, as I said at the top, this
would be less work if we just delete the code. Do people really care
if a build ID, line number of objdump was provided to them by libbfd?
I suspect I've introduced this regression by making build ID mmaps the
default, anyway...
Thanks,
Ian
> 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@entry=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@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
> at util/symbol-elf.c:886
> #6 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
> at util/symbol-elf.c:968
> #7 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x7f8769c3fa50, machine=machine@entry=0x5567f7392a00, is_kernel=is_kernel@entry=false)
> at util/synthetic-events.c:404
> #8 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x7f8769c3fa50, pid=pid@entry=144076, tgid=tgid@entry=144076,
> process=process@entry=0x5567c5c5d491 <mmap_handler>, machine=machine@entry=0x5567f7392a00, mmap_data=true) at util/synthetic-events.c:536
> #9 0x00005567c5c598fb in machine__init_live (machine=machine@entry=0x5567f7392a00, pid=pid@entry=144076) at util/machine.c:167
> #10 0x00005567c5c5b987 in machine__new_live (host_env=host_env@entry=0x7f8769c40b70, kernel_maps=kernel_maps@entry=false, pid=pid@entry=144076) at util/machine.c:178
> #11 0x00005567c5c56b13 in __dump_stack (file=0x7f87887f25c0 <_IO_2_1_stdout_>, stackdump=stackdump@entry=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@entry=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@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0, block=block@entry=false)
> at util/symbol-elf.c:886
> #20 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0,
> block=block@entry=false) at util/symbol-elf.c:968
> #21 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x5567f73ca000, machine=machine@entry=0x5567f7280b18, is_kernel=is_kernel@entry=false)
> at util/synthetic-events.c:404
> #22 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x5567f73ca000, pid=pid@entry=5227, tgid=5227,
> process=process@entry=0x5567c5c19264 <perf_event__process>, machine=machine@entry=0x5567f7280b18, mmap_data=false) at util/synthetic-events.c:536
> #23 0x00005567c5cac2a5 in __event__synthesize_thread (comm_event=comm_event@entry=0x5567f73c8060, mmap_event=mmap_event@entry=0x5567f73ca000,
> fork_event=fork_event@entry=0x5567f73c8080, namespaces_event=namespaces_event@entry=0x5567f7246870, pid=5227, full=full@entry=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
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Crash when running perf top with perf-6.17.7
2025-11-05 17:07 ` Ian Rogers
@ 2025-11-06 19:19 ` Namhyung Kim
0 siblings, 0 replies; 3+ messages in thread
From: Namhyung Kim @ 2025-11-06 19:19 UTC (permalink / raw)
To: Ian Rogers
Cc: Guilherme Amadio, Arnaldo Carvalho de Melo, linux-kernel,
linux-perf-users
On Wed, Nov 05, 2025 at 09:07:23AM -0800, Ian Rogers wrote:
> On Wed, Nov 5, 2025 at 8:36 AM Guilherme Amadio <amadio@gentoo.org> wrote:
> >
> > 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.
>
> This is a BUILD_NONDISTRO=1 build that is default off and
> non-distributable as libbfd is incompatible with perf's GPLv2 license.
> I think the perf libbfd code should just be deleted so we can focus
> energy on distributable code.
>
> Most recently the libbfd code was factored into its own file:
> https://lore.kernel.org/lkml/20250929190805.201446-5-irogers@google.com/
> we still don't have the dlopen support:
> https://lore.kernel.org/lkml/20251007163835.3152881-1-irogers@google.com/
> even though shipping with libLLVM/capstone linked (ie not dlopen)
> isn't possible in distributions like SuSE:
> https://lore.kernel.org/linux-perf-users/aPkivW2WoySU1Zkc@suse.de/
> For addr2line the fallback options are fairly clear (LLVM first, then
> libbfd then the forked command):
> https://web.git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/util/srcline.c?h=perf-tools-next#n117
> there should probably be a similar clean up for read build id. That
> said, the symbol-minimal.c code:
> https://web.git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/util/symbol-minimal.c?h=perf-tools-next#n33
> has no library or forked tool dependencies, so perhaps we can just use
> this for all our build ID needs.
>
> I'll see if there's a cleanup for read build id similar to the
> addr2line cleanup that can be done and try to fix the libbfd
> implementation in the process. However, as I said at the top, this
> would be less work if we just delete the code. Do people really care
> if a build ID, line number of objdump was provided to them by libbfd?
> I suspect I've introduced this regression by making build ID mmaps the
> default, anyway...
Looks like a problem in libbfd. Why does it crash when reading
build-ID? A thread-safety problem?
Thanks,
Namhyung
> >
> > 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@entry=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@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", target=target@entry=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@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
> > at util/symbol-elf.c:886
> > #6 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x7f8769c3fa98 "/usr/bin/perf", bid=bid@entry=0x7f8769c3d8f0, block=block@entry=false)
> > at util/symbol-elf.c:968
> > #7 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x7f8769c3fa50, machine=machine@entry=0x5567f7392a00, is_kernel=is_kernel@entry=false)
> > at util/synthetic-events.c:404
> > #8 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x7f8769c3fa50, pid=pid@entry=144076, tgid=tgid@entry=144076,
> > process=process@entry=0x5567c5c5d491 <mmap_handler>, machine=machine@entry=0x5567f7392a00, mmap_data=true) at util/synthetic-events.c:536
> > #9 0x00005567c5c598fb in machine__init_live (machine=machine@entry=0x5567f7392a00, pid=pid@entry=144076) at util/machine.c:167
> > #10 0x00005567c5c5b987 in machine__new_live (host_env=host_env@entry=0x7f8769c40b70, kernel_maps=kernel_maps@entry=false, pid=pid@entry=144076) at util/machine.c:178
> > #11 0x00005567c5c56b13 in __dump_stack (file=0x7f87887f25c0 <_IO_2_1_stdout_>, stackdump=stackdump@entry=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@entry=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@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", target=target@entry=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@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0, block=block@entry=false)
> > at util/symbol-elf.c:886
> > #20 0x00005567c5cf7240 in filename__read_build_id (filename=filename@entry=0x5567f73ca048 "/usr/lib64/libfribidi.so.0.4.0", bid=bid@entry=0x7f8769c425d0,
> > block=block@entry=false) at util/symbol-elf.c:968
> > #21 0x00005567c5caaba4 in perf_record_mmap2__read_build_id (event=event@entry=0x5567f73ca000, machine=machine@entry=0x5567f7280b18, is_kernel=is_kernel@entry=false)
> > at util/synthetic-events.c:404
> > #22 0x00005567c5cabff2 in perf_event__synthesize_mmap_events (tool=tool@entry=0x0, event=event@entry=0x5567f73ca000, pid=pid@entry=5227, tgid=5227,
> > process=process@entry=0x5567c5c19264 <perf_event__process>, machine=machine@entry=0x5567f7280b18, mmap_data=false) at util/synthetic-events.c:536
> > #23 0x00005567c5cac2a5 in __event__synthesize_thread (comm_event=comm_event@entry=0x5567f73c8060, mmap_event=mmap_event@entry=0x5567f73ca000,
> > fork_event=fork_event@entry=0x5567f73c8080, namespaces_event=namespaces_event@entry=0x5567f7246870, pid=5227, full=full@entry=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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2025-11-05 16:27 Crash when running perf top with perf-6.17.7 Guilherme Amadio
2025-11-05 17:07 ` Ian Rogers
2025-11-06 19:19 ` Namhyung Kim
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