toolchain/59796: sh3 libpthread dlopen tests are crashing

[martin%NetBSD.org@localhost]

>Number:         59796
>Category:       toolchain
>Synopsis:       sh3 libpthread dlopen tests are crashing
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 27 09:50:00 +0000 2025
>Originator:     Martin Husemann
>Release:        NetBSD 11.99.4
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD last-of-the-heroes.duskware.de 11.99.4 NetBSD 11.99.4 (GENERIC) #366: Wed Nov 26 09:38:04 CET 2025 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/landisk/compile/GENERIC landisk
Architecture: sh3el
Machine: landisk
>Description:

Libpthread dlopen tests are failing on sh3

https://netbsd.org/~martin/landisk-atf/288_atf.html#lib_libpthread_dlopen_t_dlopen_dlopen

>How-To-Repeat:
(gdb) run dlopen
Starting program: /usr/tests/lib/libpthread/dlopen/t_dlopen dlopen
t_dlopen: WARNING: Running test cases without atf-run(1) is unsupported
t_dlopen: WARNING: No isolation nor timeout control is being applied; you may ge                                                 t unexpected failures; see atf-test-case(4)
passed

Program received signal SIGSEGV, Segmentation fault.
0x6ec69cb8 in ?? ()
(gdb) bt
#0  0x6ec69cb8 in ?? ()
#1  0x6ea38b64 in __gthread_mutex_lock.constprop.0.isra.0 ()
   from /usr/lib/libgcc_s.so.1
#2  0x6ea39260 in __deregister_frame_info_bases () from /usr/lib/libgcc_s.so.1
#3  0x6ea392f0 in __deregister_frame_info () from /usr/lib/libgcc_s.so.1
#4  0x6ea3236a in __do_global_dtors_aux () from /usr/lib/libgcc_s.so.1
#5  0x6ea395cc in _fini () from /usr/lib/libgcc_s.so.1
#6  0x7dd55e38 in _rtld_call_initfini_function (mask=0x7ff326f8, 
    func=0x6ea395b8 <_fini>) at /work/src/libexec/ld.elf_so/rtld.c:152
#7  _rtld_call_fini_function (obj=<optimized out>, mask=0x7ff326f8, 
    cur_objgen=4) at /work/src/libexec/ld.elf_so/rtld.c:167
#8  0x7dd56830 in _rtld_call_fini_functions (force=1, mask=0x7ff326f8)
    at /work/src/libexec/ld.elf_so/rtld.c:213
#9  _rtld_exit () at /work/src/libexec/ld.elf_so/rtld.c:431
#10 0x6edcda62 in __cxa_finalize (dso=0x0)
    at /work/src/lib/libc/stdlib/atexit.c:237
#11 0x6edcd64a in exit (status=0) at /work/src/lib/libc/stdlib/exit.c:60
#12 0x6eea8c8c in pass (ctx=0x6eec4494 <Current>)
    at /work/src/external/bsd/atf/dist/atf-c/tc.c:337
#13 0x6eea950e in atf_tc_run (tc=0x412524 <atfu_dlopen_tc>, 
    resfile=<optimized out>) at /work/src/external/bsd/atf/dist/atf-c/tc.c:1041
#14 0x6eea64e8 in atf_tp_run (tp=<optimized out>, tcname=<optimized out>, 
    resfile=0x6eeca000 "/dev/stdout")
>Fix:
n/a