[Bug 2073673] Re: pyalsa segfaults on loading alsaseq

Sat Jul 20 16:57:46 UTC 2024

The attachment "Add upstream commit cb75f5c" seems to be a debdiff.  The
ubuntu-sponsors team has been subscribed to the bug report so that they
can review and hopefully sponsor the debdiff.  If the attachment isn't a
patch, please remove the "patch" flag from the attachment, remove the
"patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe
the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issue please contact him.]

-- 
You received this bug notification because you are a member of Ubuntu
Sponsors, which is subscribed to the bug report.
https://bugs.launchpad.net/bugs/2073673

Title:
  pyalsa segfaults on loading alsaseq

Status in python-pyalsa package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu 24.04 with python3-pyalsa 1.2.7-1build5. I noticed that solfege
  (3.23.4-12) crashes with segmentation fault while launching, after
  installing the python3-pyalsa package.

  It can be reproduced by simply loading pyalsa and its alsaseq module:

  $ python3 -c 'from pyalsa import alsaseq'
  Segmentation fault (core dumped)
  $

  Full stack trace:

  Program received signal SIGSEGV, Segmentation fault.
  Download failed: Invalid argument.  Continuing without source file ./string/../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S.
  __memset_evex_unaligned_erms () at ../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S:170
  warning: 170	../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: No such file or directory
  (gdb) bt
  #0  __memset_evex_unaligned_erms () at ../sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S:170
  #1  0x0000000000597aca in memset (__len=56, __ch=0, __dest=0x7ffff7e2746c) at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:59
  #2  _PyType_AllocNoTrack (nitems=1, type=0x7ffff7e2fde0 <ConstantType>) at ../Objects/typeobject.c:1708
  #3  PyType_GenericAlloc (type=0x7ffff7e2fde0 <ConstantType>, nitems=1) at ../Objects/typeobject.c:1722
  #4  0x0000000000568128 in long_subtype_new (obase=<optimized out>, x=<optimized out>, type=0x7ffff7e2fde0 <ConstantType>) at ../Objects/longobject.c:5623
  #5  long_new_impl (obase=<optimized out>, x=<optimized out>, type=0x7ffff7e2fde0 <ConstantType>) at ../Objects/longobject.c:5562
  #6  long_new (type=0x7ffff7e2fde0 <ConstantType>, args=<optimized out>, kwargs=<optimized out>) at ../Objects/clinic/longobject.c.h:65
  #7  0x00007ffff7e1f5e8 in Constant_create (name=name at entry=0x7ffff7e2747c "SEQ_OPEN_INPUT", value=value at entry=2) at pyalsa/alsaseq.c:387
  #8  0x00007ffff7e239a5 in PyInit_alsaseq () at pyalsa/alsaseq.c:3337
  #9  0x00000000006a9521 in _PyImport_LoadDynamicModuleWithSpec (spec=spec at entry=0x7ffff748a5d0, fp=fp at entry=0x0) at ../Python/importdl.c:169
  #10 0x00000000006a8c72 in _imp_create_dynamic_impl (module=<optimized out>, file=0x0, spec=0x7ffff748a5d0) at ../Python/import.c:3775
  #11 _imp_create_dynamic (module=<optimized out>, args=<optimized out>, nargs=<optimized out>) at ../Python/clinic/import.c.h:506
  #12 0x00000000005820b7 in cfunction_vectorcall_FASTCALL (func=0x7ffff75972e0, args=0x7ffff7448b38, nargsf=<optimized out>, kwnames=<optimized out>) at ../Include/cpython/methodobject.h:50
  #13 0x00000000005db593 in _PyEval_EvalFrameDefault (tstate=<optimized out>, frame=<optimized out>, throwflag=<optimized out>) at Python/bytecodes.c:3254
  #14 0x0000000000549d27 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=2, args=0x7fffffffd350, callable=0x7ffff75a4040, tstate=0xba5048 <_PyRuntime+459656>)
      at ../Include/internal/pycore_call.h:92
  #15 object_vacall (tstate=tstate at entry=0xba5048 <_PyRuntime+459656>, base=<optimized out>, callable=0x7ffff75a4040, vargs=0x7fffffffd3d8) at ../Objects/call.c:850
  #16 0x000000000054b5b3 in PyObject_CallMethodObjArgs (obj=<optimized out>, name=<optimized out>) at ../Objects/call.c:911
  #17 0x00000000005fde85 in import_find_and_load (abs_name=0x7ffff75f9f30, tstate=0xba5048 <_PyRuntime+459656>) at ../Python/import.c:2779
  #18 PyImport_ImportModuleLevelObject (name=name at entry=0x7ffff75f9f30, globals=globals at entry=0x0, locals=locals at entry=0x0, fromlist=fromlist at entry=0x0, level=0) at ../Python/import.c:2862
  #19 0x00000000005d3874 in builtin___import___impl (level=<optimized out>, fromlist=0x0, locals=0x0, globals=0x0, name=0x7ffff75f9f30, module=<optimized out>) at ../Python/bltinmodule.c:275
  #20 builtin___import__ (module=<optimized out>, args=<optimized out>, nargs=<optimized out>, kwnames=<optimized out>) at ../Python/clinic/bltinmodule.c.h:107
  #21 0x0000000000581e9d in cfunction_vectorcall_FASTCALL_KEYWORDS (func=0x7ffff75959e0, args=0x7ffff75e0928, nargsf=<optimized out>, kwnames=0x0) at ../Include/cpython/methodobject.h:50
  #22 0x00000000005db593 in _PyEval_EvalFrameDefault (tstate=<optimized out>, frame=<optimized out>, throwflag=<optimized out>) at Python/bytecodes.c:3254
  #23 0x0000000000549d27 in _PyObject_VectorcallTstate (kwnames=0x0, nargsf=3, args=0x7fffffffd7c0, callable=0x7ffff75a4180, tstate=0xba5048 <_PyRuntime+459656>)
      at ../Include/internal/pycore_call.h:92
  #24 object_vacall (tstate=tstate at entry=0xba5048 <_PyRuntime+459656>, base=<optimized out>, callable=0x7ffff75a4180, vargs=0x7fffffffd848) at ../Objects/call.c:850
  #25 0x000000000054b5b3 in PyObject_CallMethodObjArgs (obj=<optimized out>, name=<optimized out>) at ../Objects/call.c:911
  #26 0x00000000005fe0db in PyImport_ImportModuleLevelObject (name=name at entry=0x7ffff75fd920, globals=<optimized out>, locals=locals at entry=0x7ffff75f9d80, 
      fromlist=fromlist at entry=0x7ffff759b190, level=0) at ../Python/import.c:2931
  #27 0x00000000005dc8ee in import_name (level=0xb35988 <_PyRuntime+3272>, fromlist=0x7ffff759b190, name=0x7ffff75fd920, frame=<optimized out>, tstate=<optimized out>)
      at ../Python/ceval.c:2482
  #28 _PyEval_EvalFrameDefault (tstate=tstate at entry=0xba5048 <_PyRuntime+459656>, frame=<optimized out>, frame at entry=0x7ffff7fb2020, throwflag=throwflag at entry=0) at Python/bytecodes.c:2135
  #29 0x00000000005d59ab in _PyEval_EvalFrame (throwflag=0, frame=0x7ffff7fb2020, tstate=0xba5048 <_PyRuntime+459656>) at ../Include/internal/pycore_ceval.h:89
  #30 _PyEval_Vector (kwnames=0x0, argcount=0, args=0x0, locals=0x7ffff75f9d80, func=0x7ffff74413a0, tstate=0xba5048 <_PyRuntime+459656>) at ../Python/ceval.c:1683
  #31 PyEval_EvalCode (co=co at entry=0x7ffff7484ed0, globals=globals at entry=0x7ffff75f9d80, locals=locals at entry=0x7ffff75f9d80) at ../Python/ceval.c:578
  #32 0x00000000006089a3 in run_eval_code_obj (locals=0x7ffff75f9d80, globals=0x7ffff75f9d80, co=0x7ffff7484ed0, tstate=0xba5048 <_PyRuntime+459656>) at ../Python/pythonrun.c:1722
  #33 run_mod (arena=0x7ffff751be50, flags=0x7ffff751be50, locals=0x7ffff75f9d80, globals=0x7ffff75f9d80, filename=<optimized out>, mod=<optimized out>) at ../Python/pythonrun.c:1743
  #34 PyRun_StringFlags (str=str at entry=0x7ffff75f9ed0 "from pyalsa import alsaseq\n", start=start at entry=257, globals=0x7ffff75f9d80, locals=0x7ffff75f9d80, flags=flags at entry=0x7fffffffdc80)
      at ../Python/pythonrun.c:1618
  #35 0x00000000006b3d8e in PyRun_SimpleStringFlags (command=0x7ffff75f9ed0 "from pyalsa import alsaseq\n", flags=flags at entry=0x7fffffffdc80) at ../Python/pythonrun.c:480
  #36 0x00000000006bca91 in pymain_run_command (command=<optimized out>) at ../Modules/main.c:255
  #37 pymain_run_python (exitcode=0x7fffffffdc4c) at ../Modules/main.c:620
  #38 Py_RunMain () at ../Modules/main.c:709
  #39 0x00000000006bc4ad in Py_BytesMain (argc=<optimized out>, argv=<optimized out>) at ../Modules/main.c:763
  #40 0x00007ffff7c2a1ca in __libc_start_call_main (main=main at entry=0x518a50 <main>, argc=argc at entry=3, argv=argv at entry=0x7fffffffde98) at ../sysdeps/nptl/libc_start_call_main.h:58
  #41 0x00007ffff7c2a28b in __libc_start_main_impl (main=0x518a50 <main>, argc=3, argv=0x7fffffffde98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
      stack_end=0x7fffffffde88) at ../csu/libc-start.c:360
  #42 0x0000000000657925 in _start ()
  (gdb)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/python-pyalsa/+bug/2073673/+subscriptions