Sorry, disregard this report. The qemu version actually running was an old version that had this bug (in debian 10). The 5.2 version does not have this issue. I was confused by binfmt + docker.
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1912790 Title: qemu-aarch64-static segfaults python3 Status in QEMU: Invalid Bug description: qemu-aarch64-static is segfaulting in a debian build process using debootstrap. ``` Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/qemu-aarch64-static... Reading symbols from /usr/lib/debug/.build-id/30/efd3930fb9519b21470b113679376f2ffbb41a.debug... [New LWP 21817] [New LWP 21819] warning: Corrupted shared library list: 0xd5f140 != 0x0 Warning: couldn't activate thread debugging using libthread_db: Cannot find new threads: debugger service failed Core was generated by `/usr/bin/qemu-aarch64-static /usr/bin/python3.9 -c import imp; print(imp.get_ta'. Program terminated with signal SIGSEGV, Segmentation fault. #0 have_mmap_lock () at ../../linux-user/mmap.c:43 43 return mmap_lock_count > 0 ? true : false; [Current thread is 1 (LWP 21817)] (gdb) bt #0 have_mmap_lock () at ../../linux-user/mmap.c:43 #1 0x000000000058eb2c in page_set_flags (start=start@entry=4194304, end=end@entry=26451968, flags=flags@entry=8) at ../../accel/tcg/translate-all.c:2568 #2 0x00000000005638cd in target_mmap (start=start@entry=4194304, len=<optimized out>, len@entry=22257160, target_prot=target_prot@entry=0, flags=16434, fd=fd@entry=-1, offset=offset@entry=0) at ../../linux-user/mmap.c:602 #3 0x000000000057042d in load_elf_image (image_name=0x7ffff7b7e8d8 "/usr/bin/python3.9", image_fd=3, info=info@entry=0x7ffff7b7ce70, pinterp_name=pinterp_name@entry=0x7ffff7b7cbd0, bprm_buf=bprm_buf@entry=0x7ffff7b7d080 "\177ELF\002\001\001") at ../../linux-user/elfload.c:2700 #4 0x0000000000570b9c in load_elf_binary (bprm=bprm@entry=0x7ffff7b7d080, info=info@entry=0x7ffff7b7ce70) at ../../linux-user/elfload.c:3104 #5 0x00000000005c2fdb in loader_exec (fdexec=fdexec@entry=3, filename=<optimized out>, argv=argv@entry=0x2622910, envp=envp@entry=0x2686340, regs=regs@entry=0x7ffff7b7cf70, infop=infop@entry=0x7ffff7b7ce70, bprm=<optimized out>) at ../../linux-user/linuxload.c:147 #6 0x00000000004027f7 in main (argc=<optimized out>, argv=0x7ffff7b7d638, envp=<optimized out>) at ../../linux-user/main.c:810 (gdb) i r rax 0x0 0 rbx 0x400000 4194304 rcx 0x7a95d2 8033746 rdx 0x8 8 rsi 0x193a000 26451968 rdi 0x400000 4194304 rbp 0x400000 0x400000 rsp 0x7ffff7b7c978 0x7ffff7b7c978 r8 0xffffffff 4294967295 r9 0x0 0 r10 0x4032 16434 r11 0x206 518 r12 0x193a000 26451968 r13 0x8 8 r14 0x8 8 r15 0x193a000 26451968 rip 0x562f20 0x562f20 <have_mmap_lock> eflags 0x10206 [ PF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 ``` Python3.9 is run as part of the installation of python3-minimal and the segfaults happens reliably here. Debian versionn bullseye (testing) Version: qemu-aarch64 version 5.2.0 (Debian 1:5.2+dfsg-3) Host is a qemu-system-x86_64: Linux runner 4.19.0-13-amd64 #1 SMP Debian 4.19.160-2 (2020-11-28) x86_64 GNU/Linux. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1912790/+subscriptions
