RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1325795 - GObject's Frame filter causes GDB to raise RuntimeError - "Cannot locate object file for block."
Summary: GObject's Frame filter causes GDB to raise RuntimeError - "Cannot locate obje...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: gdb
Version: 7.2
Hardware: Unspecified
OS: Linux
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Jan Kratochvil
QA Contact: Martin Cermak
URL:
Whiteboard:
: 1348209 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-04-11 08:39 UTC by Jakub Filak
Modified: 2016-12-01 00:50 UTC (History)
7 users (show)

Fixed In Version: gdb-7.6.1-88.el7
Doc Type: No Doc Update
Doc Text:
undefined
Clone Of:
Environment:
Last Closed: 2016-11-04 03:51:00 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2016:2328 0 normal SHIPPED_LIVE gdb bug fix and enhancement update 2016-11-03 13:44:08 UTC
Sourceware 16485 0 None None None 2019-01-02 07:38:44 UTC

Description Jakub Filak 2016-04-11 08:39:03 UTC 
Description of problem:
Getting backtrace from coredump file generated for glade3 produces the following unexpected Python exception:
Python Exception <type 'exceptions.RuntimeError'> Cannot locate object file for block.:

glib2-devel package ships two gdb python files:
/usr/share/glib-2.0/gdb/glib.py
/usr/share/glib-2.0/gdb/gobject.py

If I remove the latter, the exception is gone. If I disable GFrameFilter (enabled = False), the exception is gone too.

Version-Release number of selected component (if applicable):
gdb-7.6.1-80.el7.x86_64
glib2-devel-2.46.2-3.el7.x86_64
glade3-3.8.3-5.el7.x86_64

How reproducible:
always with a coredump file of glade3

Steps to Reproduce:
1. # yum install glade3
2. $ glade-3
3. $ ulimit -c unlimited
4. $ killall -ABRT glade-3
5. $ gdb `which glade-3` -c core.*
6. $ t a a bt

Actual results:
Thread 4 (Thread 0x7f870f7fe700 (LWP 13300)):
Python Exception <type 'exceptions.RuntimeError'> Cannot locate object file for block.:
#0  0x00007f8732f1da09 in syscall#1  0x00007f87337ffa6e in g_cond_wait_until (cond=cond@entry=0x2494d88, mutex=mutex@entry=0x2494d80, end_time=end_time@entry=7399150521)
    at gthread-posix.c:1444

Expected results:
Thread 4 (Thread 0x7f870f7fe700 (LWP 13300)):
#0  0x00007f8732f1da09 in syscall#1  0x00007f87337ffa6e in g_cond_wait_until (cond=cond@entry=0x2494d88, mutex=mutex@entry=0x2494d80, end_time=end_time@entry=7399150521)
    at gthread-posix.c:1444
Comment 2 Jan Kratochvil 2016-04-16 20:35:53 UTC 
Jakub, BTW cannot ABRT use DTS GDB if available?  It should always provide better results and it should be fully compatible with the target RHEL (modulo unexpected regressions).  On a retrace server we could make DTS GDB even a requirement but I guess this Bug needs to be fixed even for non-retrace server use cases.


Both GDBs call PyErr_SetString (PyExc_RuntimeError, ...) but Python then returns a different result.  The same Python on the same OS, just with different GDB.  There is some Python magic context I do not understand.

7.6.1-87.el7
gdb -ex 'set width 0' -ex 'set pagination off' -ex 'b py-frame.c:255' -ex r -ex bt -ex 'frame 12' -ex 'fini' --args ./gdb -batch glade-3 -ex 'set env DISPLAY=host2s:0' -ex start -ex 'b start_thread' -ex c -ex 't a a bt'
317	      PyObject *result = PyObject_CallMethod (filter, func, NULL);
Value returned is $1 = 0x0

7.11-69.el7
gdb -ex 'set width 0' -ex 'set pagination off' -ex 'b py-frame.c:317' -ex r -ex bt -ex 'frame 12' -ex 'fini' --args ./gdb -batch glade-3 -ex 'set env DISPLAY=host2s:0' -ex start -ex 'b start_thread' -ex c -ex 't a a bt'
324	      PyObject *result = PyObject_CallMethod (filter, func, NULL);
Value returned is $1 = []

in detail:
python-2.7.5-34.el7.x86_64

7.6.1-87.el7
Breakpoint 1, frapy_block (self=<gdb.Frame at remote 0x556aab0>, args=0x0) at ../../gdb/python/py-frame.c:255
255	      PyErr_SetString (PyExc_RuntimeError,
#0  frapy_block (self=<gdb.Frame at remote 0x556aab0>, args=0x0) at ../../gdb/python/py-frame.c:255
#1  0x00007ffff66fe8e0 in call_function (oparg=<optimized out>, pp_stack=0x7fffffffc980) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4082
#2  PyEval_EvalFrameEx (f=f@entry=Frame 0x5779c40, for file /usr/share/gdb/python/gdb/FrameDecorator.py, line 273, in fetch_frame_args (self=<FrameVars(frame=<gdb.Frame at remote 0x556aab0>, symbol_class={2: True, 3: True, 4: True, 5: True, 6: True, 7: True, 14: True}) at remote 0x556ab10>, args=[]), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#3  0x00007ffff66fe860 in fast_function (nk=<optimized out>, na=1, n=1, pp_stack=0x7fffffffcae0, func=<function at remote 0x7ffff7e8c398>) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4184
#4  call_function (oparg=<optimized out>, pp_stack=0x7fffffffcae0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4119
#5  PyEval_EvalFrameEx (f=f@entry=Frame 0x5232ce0, for file /usr/share/gdb/python/gdb/FrameDecorator.py, line 152, in frame_args (self=<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>, frame=<gdb.Frame at remote 0x556aab0>, args=<FrameVars(frame=<gdb.Frame at remote 0x556aab0>, symbol_class={2: True, 3: True, 4: True, 5: True, 6: True, 7: True, 14: True}) at remote 0x556ab10>), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#6  0x00007ffff67000bd in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=args@entry=0x7ffff7e62e68, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330
#7  0x00007ffff668cf68 in function_call (func=<function at remote 0x7ffff7e7ce60>, arg=(<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>,), kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/funcobject.c:526
#8  0x00007ffff66680b3 in PyObject_Call (func=func@entry=<function at remote 0x7ffff7e7ce60>, arg=arg@entry=(<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>,), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#9  0x00007ffff66770a5 in instancemethod_call (func=<function at remote 0x7ffff7e7ce60>, arg=(<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>,), kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/classobject.c:2602
#10 0x00007ffff66680b3 in PyObject_Call (func=func@entry=<instancemethod at remote 0x7ffff7f23280>, arg=arg@entry=(), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#11 0x00007ffff6668195 in call_function_tail (callable=<instancemethod at remote 0x7ffff7f23280>, args=()) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2561
#12 0x00007ffff666867b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0x922ab2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
#13 0x000000000056783b in get_py_iter_from_func (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>, func=0x922ab2 "frame_args") at ../../gdb/python/py-framefilter.c:317
#14 0x0000000000568bfc in py_print_args (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>, out=0x105def0, args_type=CLI_SCALAR_VALUES, frame=0x5125e58) at ../../gdb/python/py-framefilter.c:948
#15 0x000000000056972d in py_print_frame (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>, flags=7, args_type=CLI_SCALAR_VALUES, out=0x105def0, indent=0, levels_printed=0x15f75c0) at ../../gdb/python/py-framefilter.c:1232
#16 0x000000000056a119 in apply_frame_filter (frame=0x5124ff8, flags=7, args_type=CLI_SCALAR_VALUES, out=0x105def0, frame_low=0, frame_high=-1) at ../../gdb/python/py-framefilter.c:1509
#17 0x0000000000642e75 in backtrace_command_1 (count_exp=0x0, show_locals=0, no_filters=0, from_tty=0) at ../../gdb/stack.c:1774
#18 0x00000000006432e1 in backtrace_command (arg=0x0, from_tty=0) at ../../gdb/stack.c:1888
#19 0x0000000000535093 in do_cfunc (c=0xf18f40, args=0x0, from_tty=0) at ../../gdb/cli/cli-decode.c:113
#20 0x0000000000538380 in cmd_func (cmd=0xf18f40, args=0x0, from_tty=0) at ../../gdb/cli/cli-decode.c:1859
#21 0x0000000000754aa7 in execute_command (p=0x7fffffffdda3 "", from_tty=0) at ../../gdb/top.c:487
#22 0x00000000006471f1 in thread_apply_all_command (cmd=0x7fffffffdda1 "bt", from_tty=0) at ../../gdb/thread.c:1205
#23 0x0000000000535093 in do_cfunc (c=0xf1a8b0, args=0x7fffffffdda1 "bt", from_tty=0) at ../../gdb/cli/cli-decode.c:113
#24 0x0000000000538380 in cmd_func (cmd=0xf1a8b0, args=0x7fffffffdda1 "bt", from_tty=0) at ../../gdb/cli/cli-decode.c:1859
#25 0x0000000000754aa7 in execute_command (p=0x7fffffffdda2 "t", from_tty=0) at ../../gdb/top.c:487
#26 0x0000000000648ade in catch_command_errors (command=0x754832 <execute_command>, arg=0x7fffffffdd9b "t a a bt", from_tty=0, mask=6) at ../../gdb/exceptions.c:573
#27 0x000000000064c5a8 in captured_main (data=0x7fffffffd890) at ../../gdb/main.c:1098
#28 0x00000000006489e3 in catch_errors (func=0x64b310 <captured_main>, func_args=0x7fffffffd890, errstring=0x969e00 "", mask=6) at ../../gdb/exceptions.c:546
#29 0x000000000064c6c3 in gdb_main (args=0x7fffffffd890) at ../../gdb/main.c:1144
#30 0x00000000004565ad in main (argc=13, argv=0x7fffffffd9a8) at ../../gdb/gdb.c:34
#12 0x00007ffff666867b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0x922ab2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
2677	    retval = call_function_tail(func, args);
Run till exit from #12 0x00007ffff666867b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0x922ab2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
0x000000000056783b in get_py_iter_from_func (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x556aab0>) at remote 0x556ab50>, func=0x922ab2 "frame_args") at ../../gdb/python/py-framefilter.c:317
317	      PyObject *result = PyObject_CallMethod (filter, func, NULL);
Value returned is $1 = 0x0

7.11-69.el7
Breakpoint 1, frapy_block (self=<gdb.Frame at remote 0x53baef0>, args=0x0) at ../../gdb/python/py-frame.c:317
317	      PyErr_SetString (PyExc_RuntimeError,
#0  frapy_block (self=<gdb.Frame at remote 0x53baef0>, args=0x0) at ../../gdb/python/py-frame.c:317
#1  0x00007ffff66ed8e0 in call_function (oparg=<optimized out>, pp_stack=0x7fffffffc8d0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4082
#2  PyEval_EvalFrameEx (f=f@entry=Frame 0x56372d0, for file /opt/rh/devtoolset-4/root/usr/share/gdb/python/gdb/FrameDecorator.py, line 287, in fetch_frame_args (self=<FrameVars(frame=<gdb.Frame at remote 0x53baef0>, symbol_class={2: True, 3: True, 4: True, 5: True, 6: True, 7: True, 14: True}) at remote 0x53ba4d0>, args=[]), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#3  0x00007ffff66ed860 in fast_function (nk=<optimized out>, na=1, n=1, pp_stack=0x7fffffffca30, func=<function at remote 0x7ffff7e92050>) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4184
#4  call_function (oparg=<optimized out>, pp_stack=0x7fffffffca30) at /usr/src/debug/Python-2.7.5/Python/ceval.c:4119
#5  PyEval_EvalFrameEx (f=f@entry=Frame 0x563c840, for file /opt/rh/devtoolset-4/root/usr/share/gdb/python/gdb/FrameDecorator.py, line 161, in frame_args (self=<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>, frame=<gdb.Frame at remote 0x53baef0>, args=<FrameVars(frame=<gdb.Frame at remote 0x53baef0>, symbol_class={2: True, 3: True, 4: True, 5: True, 6: True, 7: True, 14: True}) at remote 0x53ba4d0>), throwflag=throwflag@entry=0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:2740
#6  0x00007ffff66ef0bd in PyEval_EvalCodeEx (co=<optimized out>, globals=<optimized out>, locals=locals@entry=0x0, args=args@entry=0x7ffff7e3f328, argcount=1, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at /usr/src/debug/Python-2.7.5/Python/ceval.c:3330
#7  0x00007ffff667bf68 in function_call (func=<function at remote 0x7ffff7e85b18>, arg=(<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>,), kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/funcobject.c:526
#8  0x00007ffff66570b3 in PyObject_Call (func=func@entry=<function at remote 0x7ffff7e85b18>, arg=arg@entry=(<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>,), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#9  0x00007ffff66660a5 in instancemethod_call (func=<function at remote 0x7ffff7e85b18>, arg=(<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>,), kw=0x0) at /usr/src/debug/Python-2.7.5/Objects/classobject.c:2602
#10 0x00007ffff66570b3 in PyObject_Call (func=func@entry=<instancemethod at remote 0x7ffff7f23280>, arg=arg@entry=(), kw=kw@entry=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2529
#11 0x00007ffff6657195 in call_function_tail (callable=<instancemethod at remote 0x7ffff7f23280>, args=()) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2561
#12 0x00007ffff665767b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0xa80ad2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
#13 0x00000000005d3a81 in get_py_iter_from_func (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>, func=0xa80ad2 "frame_args") at ../../gdb/python/py-framefilter.c:324
#14 0x00000000005d4d40 in py_print_args (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>, out=0x12e46b0, args_type=CLI_SCALAR_VALUES, frame=0x5883810) at ../../gdb/python/py-framefilter.c:968
#15 0x00000000005d57cc in py_print_frame (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>, flags=7, args_type=CLI_SCALAR_VALUES, out=0x12e46b0, indent=0, levels_printed=0x5619970) at ../../gdb/python/py-framefilter.c:1269
#16 0x00000000005d6120 in gdbpy_apply_frame_filter (extlang=0xa7cda0 <extension_language_python>, frame=0x5822ca0, flags=7, args_type=CLI_SCALAR_VALUES, out=0x12e46b0, frame_low=0, frame_high=-1) at ../../gdb/python/py-framefilter.c:1580
#17 0x00000000006d72b3 in apply_ext_lang_frame_filter (frame=0x5822ca0, flags=7, args_type=CLI_SCALAR_VALUES, out=0x12e46b0, frame_low=0, frame_high=-1) at ../../gdb/extension.c:570
#18 0x00000000006cecaa in backtrace_command_1 (count_exp=0x0, show_locals=0, no_filters=0, from_tty=0) at ../../gdb/stack.c:1817
#19 0x00000000006cf104 in backtrace_command (arg=0x0, from_tty=0) at ../../gdb/stack.c:1932
#20 0x000000000059bb1a in do_cfunc (c=0x119fed0, args=0x0, from_tty=0) at ../../gdb/cli/cli-decode.c:105
#21 0x000000000059eff5 in cmd_func (cmd=0x119fed0, args=0x0, from_tty=0) at ../../gdb/cli/cli-decode.c:1885
#22 0x0000000000806029 in execute_command (p=0x7fffffffdda5 "", from_tty=0) at ../../gdb/top.c:475
#23 0x00000000006d4ff6 in thread_apply_all_command (cmd=0x7fffffffdda3 "bt", from_tty=0) at ../../gdb/thread.c:1814
#24 0x000000000059bb1a in do_cfunc (c=0x11a1a00, args=0x7fffffffdda3 "bt", from_tty=0) at ../../gdb/cli/cli-decode.c:105
#25 0x000000000059eff5 in cmd_func (cmd=0x11a1a00, args=0x7fffffffdda3 "bt", from_tty=0) at ../../gdb/cli/cli-decode.c:1885
#26 0x0000000000806029 in execute_command (p=0x7fffffffdda4 "t", from_tty=0) at ../../gdb/top.c:475
#27 0x00000000006daf72 in catch_command_errors (command=0x805d9e <execute_command>, arg=0x7fffffffdd9d "t a a bt", from_tty=0) at ../../gdb/main.c:369
#28 0x00000000006dc640 in captured_main (data=0x7fffffffd8b0) at ../../gdb/main.c:1218
#29 0x00000000006d65f4 in catch_errors (func=0x6db426 <captured_main>, func_args=0x7fffffffd8b0, errstring=0xad2679 "", mask=RETURN_MASK_ALL) at ../../gdb/exceptions.c:240
#30 0x00000000006dc74e in gdb_main (args=0x7fffffffd8b0) at ../../gdb/main.c:1263
#31 0x0000000000464446 in main (argc=13, argv=0x7fffffffd9b8) at ../../gdb/gdb.c:32
#12 0x00007ffff665767b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0xa80ad2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
2677	    retval = call_function_tail(func, args);
Run till exit from #12 0x00007ffff665767b in _PyObject_CallMethod_SizeT (o=<optimized out>, name=0xa80ad2 "frame_args", format=0x0) at /usr/src/debug/Python-2.7.5/Objects/abstract.c:2677
0x00000000005d3a81 in get_py_iter_from_func (filter=<FrameDecorator(_base=<gdb.Frame at remote 0x53baef0>) at remote 0x53bae90>, func=0xa80ad2 "frame_args") at ../../gdb/python/py-framefilter.c:324
324	      PyObject *result = PyObject_CallMethod (filter, func, NULL);
Value returned is $1 = []
Comment 3 Jan Kratochvil 2016-04-16 20:44:01 UTC 
This is not a Python Bug.  Asking for a Python advice why PyObject_CallMethod() does return a different result in Comment 2, thanks.
Comment 4 Jan Kratochvil 2016-04-17 20:31:44 UTC 
Removing python-maint, the bug was in a *.py code, not in *.c.
Comment 5 Jan Kratochvil 2016-04-19 21:31:34 UTC 
QA: New testcase:
PASS: gdb.python/py-framefilter-thread.exp: bt with filters

#2  0x00007ffff75f228d in 941595343737041 () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113^M
vs.
#2  0x00007ffff75f228d in 941595343737041Traceback (most recent call last):
  File "/home/jkratoch/redhat/rhel/gdb/rhel-7.3/gdb-7.6.1/gdb/testsuite/../data-directory/python/gdb/FrameDecorator.py", line 145, in frame_args
    return self._base.frame_args()
  File "/home/jkratoch/redhat/rhel/gdb/rhel-7.3/gdb-7.6.1/gdb/testsuite/../data-directory/python/gdb/FrameDecorator.py", line 152, in frame_args
    return args.fetch_frame_args()
  File "/home/jkratoch/redhat/rhel/gdb/rhel-7.3/gdb-7.6.1/gdb/testsuite/../data-directory/python/gdb/FrameDecorator.py", line 276, in fetch_frame_args
    block = self.frame.block()
RuntimeError: Cannot locate object file for block.
Comment 6 Jan Kratochvil 2016-04-21 19:48:53 UTC 
QA: Beware that testing /usr/bin/gdb binary in a different GDB tree does not work as this Bug modifies also files in /usr/share/gdb/ stored in GDB sourcetree in gdb/data-directory/ - not in the gdb binary itself.  I made a mistake myself now.

Another topic is that the testcase does not FAIL on unfixed GDB for all archs as apparently some of the archs have full debug info for all parts of the clone() function (which may be a bug on its own but I find that offtopic here).
I could create a special binary for that but I somehow found that good enough as it is, fixed GDB does PASS for all archs:
aarch64: PASS->PASS
ppc64  : PASS->PASS
ppc64le: FAIL->PASS
x86_64 : FAIL->PASS
s390x  : PASS->PASS
Comment 8 Michael Petlan 2016-06-24 13:26:43 UTC 
*** Bug 1348209 has been marked as a duplicate of this bug. ***
Comment 11 errata-xmlrpc 2016-11-04 03:51:00 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2328.html
Note You need to log in before you can comment on or make changes to this bug.