• Pi3B+ illegal instruction in python3 STUR

    From Marco Moock@3:770/3 to All on Wed Feb 7 15:05:50 2024
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    --
    kind regards
    Marco

    Spam und Werbung bitte an ichwillgesperrtwerden@nirvana.admins.ws

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  • From Andy Burns@3:770/3 to Marco Moock on Wed Feb 7 15:00:44 2024
    Marco Moock wrote:

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    Mine isn't a 3B+ so the following may be of no use ...

    andy@raspberrypi:~ $ dmesg | grep -i machine
    [ 0.000000] Machine model: Raspberry Pi 3 Model B Rev 1.2

    andy@raspberrypi:~ $ uname -a
    Linux raspberrypi 5.15.61-v8+ #1579 SMP PREEMPT Fri Aug 26 11:16:44 BST
    2022 aarch64 GNU/Linux

    andy@raspberrypi:~ $ python3 -V
    Python 3.9.2

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  • From druck@3:770/3 to Marco Moock on Wed Feb 7 21:11:02 2024
    On 07/02/2024 14:05, Marco Moock wrote:
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    Are you running just the 64 bit kernel or the 64 bit userland too?
    If it's the latter I don't recommend that with only 1GB of memory.

    I'm only running full 64 bit Bookworm on Pi 4s and 5s, and there are no
    Python issues on those.

    ---druck

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  • From Richard Kettlewell@3:770/3 to Marco Moock on Thu Feb 8 11:44:48 2024
    Marco Moock <mm+usenet-es@dorfdsl.de> writes:
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    “It works on my computer”

    richard@chulka:~ $ cat /proc/cpuinfo
    [...]
    Revision : a02082
    Serial : 0000000068bf39e8
    Model : Raspberry Pi 3 Model B Rev 1.2

    richard@chulka:~ $ uname -a
    Linux chulka 6.1.0-rpi8-rpi-v8 #1 SMP PREEMPT Debian 1:6.1.73-1+rpt1 (2024-01-25) aarch64 GNU/Linux

    richard@chulka:~ $ dpkg -l linux-image-* python3-minimal libpython3.11 libc6
    Desired=Unknown/Install/Remove/Purge/Hold
    | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
    |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
    ||/ Name Version Architecture Description
    +++-=============================-===================-============-===============================================================
    ii libc6:arm64 2.36-9+rpt2+deb12u4 arm64 GNU C Library: Shared libraries
    ii libpython3.11:arm64 3.11.2-6 arm64 Shared Python runtime library (version 3.11)
    ii linux-image-6.1.0-rpi7-rpi-v8 1:6.1.63-1+rpt1 arm64 Linux 6.1 for Raspberry Pi v8, Raspberry Pi
    ii linux-image-6.1.0-rpi8-rpi-v8 1:6.1.73-1+rpt1 arm64 Linux 6.1 for Raspberry Pi v8, Raspberry Pi
    ii linux-image-rpi-v8 1:6.1.73-1+rpt1 arm64 Linux for Raspberry Pi v8 (meta-package)
    ii python3-minimal 3.11.2-1+b1 arm64 minimal subset of the Python language (default python3 version)

    richard@chulka:~ $ file -L /usr/bin/python3
    /usr/bin/python3: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, BuildID[sha1]=15a1b7b17a3e246ca60bac3646ced99af27ca711, for GNU/Linux 3.7.0, stripped

    richard@chulka:~ $ sha256sum /usr/bin/python3
    37e79c476a2b3feb191fb4af8012363bbde2461fce10418a569bed0765f86e95 /usr/bin/python3

    richard@chulka:~ $ python3
    Python 3.11.2 (main, Mar 13 2023, 12:18:29) [GCC 12.2.0] on linux
    Type "help", "copyright", "credits" or "license" for more information.
    >>>

    However there is an inconsistency with the material in the bug report.
    Stefano quotes a STUR insn but if I disassemble it I get LDP at that
    location:

    richard@chulka:~ $ gdb /usr/bin/python3 junk/python3_core_dump.34704
    [..]
    Reading symbols from /usr/bin/python3...
    Reading symbols from /usr/lib/debug/.build-id/15/a1b7b17a3e246ca60bac3646ced99af27ca711.debug...
    [New LWP 34704]

    warning: Build-id of /lib/aarch64-linux-gnu/libm.so.6 does not match core file.

    warning: Build-id of /lib/aarch64-linux-gnu/libc.so.6 does not match core file.

    warning: Build-id of /lib/ld-linux-aarch64.so.1 does not match core file.
    [Thread debugging using libthread_db enabled]
    Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
    Core was generated by `python3'.
    Program terminated with signal SIGILL, Illegal instruction.
    #0 0x0000000000510d48 in _PyObject_GC_UNTRACK (op=<optimized out>) at ../Include/internal/pycore_object.h:169
    169 ../Include/internal/pycore_object.h: No such file or directory.
    (gdb) disassemble 0x0000000000510d48
    Dump of assembler code for function gen_dealloc:
    0x0000000000510d40 <+0>: stp x29, x30, [sp, #-96]!
    0x0000000000510d44 <+4>: mov x29, sp
    => 0x0000000000510d48 <+8>: ldp x3, x2, [x0, #-16]
    0x0000000000510d4c <+12>: stp x19, x20, [sp, #16]

    This could reflect the libc-level differences, but gen_dealloc is part
    of the Python implementation, not the C library.

    --
    https://www.greenend.org.uk/rjk/

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  • From Marco Moock@3:770/3 to All on Thu Feb 8 20:30:08 2024
    On 07.02.2024 um 21:11 Uhr druck wrote:

    On 07/02/2024 14:05, Marco Moock wrote:
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12? 3.11.2-1+b1
    Python3 is completely broken on that machine.

    Are you running just the 64 bit kernel or the 64 bit userland too?
    If it's the latter I don't recommend that with only 1GB of memory.

    All the packages are arm64.

    I am aware that they need more RAM, but does that create such errors?

    --
    kind regards
    Marco

    Send spam to muell456@cartoonies.org

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  • From druck@3:770/3 to Marco Moock on Thu Feb 8 21:24:34 2024
    On 08/02/2024 19:30, Marco Moock wrote:
    On 07.02.2024 um 21:11 Uhr druck wrote:

    On 07/02/2024 14:05, Marco Moock wrote:
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    Are you running just the 64 bit kernel or the 64 bit userland too?
    If it's the latter I don't recommend that with only 1GB of memory.

    All the packages are arm64.

    I am aware that they need more RAM, but does that create such errors?

    It doesn't, you've got some configuration problem that will probably
    only be installed by a reinstall. If you are going down that route I'm suggesting that for machines which only have 1GB and function worse with
    a 64 bit OS and programs, you reinstall a 32 bit OS.

    ---druck

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  • From Robert Riches@3:770/3 to Marco Moock on Fri Feb 9 04:10:22 2024
    On 2024-02-08, Marco Moock <mm+usenet-es@dorfdsl.de> wrote:
    On 07.02.2024 um 21:11 Uhr druck wrote:

    On 07/02/2024 14:05, Marco Moock wrote:
    Hello!

    https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1063253

    Can people here confirm that problem with their Pi and Debian 12?
    3.11.2-1+b1
    Python3 is completely broken on that machine.

    Are you running just the 64 bit kernel or the 64 bit userland too?
    If it's the latter I don't recommend that with only 1GB of memory.

    All the packages are arm64.

    I am aware that they need more RAM, but does that create such errors?

    Just a wild guess on my part, but in theory if the program in
    question called malloc() and neglected to check whether the
    result was NULL, lack of RAM could be a contributing factor to a
    number of segmentation faults or similar. There might be a
    scenario where it could end up in an illegal instruction fault.

    --
    Robert Riches
    spamtrap42@jacob21819.net
    (Yes, that is one of my email addresses.)

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