On 17.08.19 17:59, David Hildenbrand wrote: > Hi everybody, > > I was just trying to run qemu-s390x (linux-user) with a very simple > binary (gzip + lib/ld64.so.1, compiled under Fedora 27). This used to > work just fine a while ago (especially when I was working on vector > instructions using QEMU v3.1). However, now I can't get past a SEGFAULT > in the dynamic library loader (I assume it is trying to locate glibc). I > tried a couple of other binaries that definitely used to work (from > Fedora 30). > > I checked QEMU v4.1, v4.0 and v3.1. All are broken for me. Which is > weird - because it used to work :/ > > I remember that I was running Fedora 29 the last time I had it running, > so my gut feeling is that this is related to some other system library > (but which?). I am running on an up-to-date Fedora 30 x86-64 now. > > Any ideas? Has this been reported already? (not sure if this is a Fedora > 30 issue) > > LANG=C ~/git/qemu/s390x-linux-user/qemu-s390x -d in_asm -L . gzip --help > > ---------------- > IN: _dl_load_cache_lookup > 0x00000040008854c2: larl %r1,0x4000895030 > 0x00000040008854c8: lg %r8,264(%r11) > 0x00000040008854ce: mvghi 0(%r1),-1 > 0x00000040008854d4: la %r3,0(%r3,%r8) > 0x00000040008854d8: l %r7,12(%r8) > 0x00000040008854dc: llgfr %r2,%r7 > 0x00000040008854e0: sllg %r1,%r2,1 > 0x00000040008854e6: agr %r1,%r2 > 0x00000040008854ea: sllg %r1,%r1,2 > 0x00000040008854f0: la %r6,16(%r1,%r8) > 0x00000040008854f4: sgr %r3,%r6 > 0x00000040008854f8: stg %r3,256(%r11) > 0x00000040008854fe: ahi %r7,-1 > 0x0000004000885502: jl 0x40008850f0 > > ---------------- > IN: _dl_load_cache_lookup > 0x0000004000885506: srak %r10,%r7,1 > 0x000000400088550c: lgfr %r2,%r10 > 0x0000004000885510: sllg %r1,%r2,1 > 0x0000004000885516: agr %r1,%r2 > 0x000000400088551a: sllg %r1,%r1,2 > 0x0000004000885520: l %r1,20(%r1,%r8) > 0x0000004000885524: clrjhe %r1,%r3,0x40008850f0 > > Segmentation fault (Speicherabzug geschrieben) > > > Core was generated by > `/home/dhildenb/git/qemu/s390x-linux-user/qemu-s390x -d in_asm -L . gzip > --help'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00007fdc5d7c3232 in sigsuspend () from /lib64/libc.so.6 > [Current thread is 1 (Thread 0x7fdc5d7127c0 (LWP 31072))] > Missing separate debuginfos, use: dnf debuginfo-install > glib2-2.60.6-1.fc30.x86_64 glibc-2.29-15.fc30.x86_64 > libgcc-9.1.1-1.fc30.x86_64 libstdc++-9.1.1-1.fc30.x86_64 > pcre-8.43-2.fc30.x86_64 zlib-1.2.11-16.fc30.x86_64 > (gdb) bt > #0 0x00007fdc5d7c3232 in sigsuspend () from /lib64/libc.so.6 > #1 0x000055f826135a9c in dump_core_and_abort > (target_sig=target_sig@entry=11) > at /home/dhildenb/git/qemu/linux-user/signal.c:613 > #2 0x000055f826135e37 in handle_pending_signal > (cpu_env=cpu_env@entry=0x55f8292cec48, sig=sig@entry=11, > k=k@entry=0x55f8292d7df0) at > /home/dhildenb/git/qemu/linux-user/signal.c:877 > #3 0x000055f826136edd in process_pending_signals > (cpu_env=cpu_env@entry=0x55f8292cec48) > at /home/dhildenb/git/qemu/linux-user/signal.c:953 > #4 0x000055f82613a13a in cpu_loop (env=0x55f8292cec48) at > /home/dhildenb/git/qemu/linux-user/s390x/cpu_loop.c:150 > #5 0x000055f8260ce2ba in main (argc=<optimized out>, > argv=0x7fff587a69d8, envp=<optimized out>) > at /home/dhildenb/git/qemu/linux-user/main.c:819 > > Thanks! >
CCing QEMU-devel + use my proper dev mail address (I need more coffee :)) -- Thanks, David / dhildenb
