Bug#927785: pyparted: FTBFS randomly (Floating point exception)
forwarded 927785 https://github.com/dcantrell/pyparted/issues/57
thanks
Sent debugging.txt file (Bernhard Übelacker file)
On 4/23/19 6:35 AM, Bernhard Übelacker wrote:
> Dear Maintainer,
> I just tried to find some more information.
>
> I could reproduce the issue in a unstable amd64 VM
> on the second attempt.
>
> It looks like in a garbage collector run a
> division by zero is triggered because we
> get there with sector_size==0.
>
> If wanted I can forward the core file.
>
> Kind regards,
> Bernhard
>
>
>
> 1708gpt_alloc_metadata (PedDisk *disk)
> 1709{
> ...
> 1718 gptlength = ped_div_round_up (sizeof (GuidPartitionTableHeader_t),
> 1719disk->dev->sector_size);
>
>
> (gdb) bt
> #0 0x7fb67449e727 in ped_div_round_up (divisor=0, numerator=100) at
> ../../../include/parted/natmath.h:130
> #1 gpt_alloc_metadata (disk=0x558890efb060) at
> ../../../libparted/labels/gpt.c:1718
> #2 0x7fb67448851a in _disk_alloc_metadata (disk=0x558890efb060) at
> ../../libparted/disk.c:1164
> #3 _disk_pop_update_mode (disk=0x558890efb060) at ../../libparted/disk.c:1164
> #4 0x7fb6744890b2 in ped_disk_delete_all
> (disk=disk@entry=0x558890efb060) at ../../libparted/disk.c:2104
> #5 0x7fb67449dd59 in gpt_free (disk=0x558890efb060) at
> ../../../libparted/labels/gpt.c:622
> #6 0x7fb674abee82 in ?? ()
> #7 0x7fb673c46348 in ?? ()
> #8 0x55888eb4b67b in dict_dealloc (mp=0x7fb673c46280) at
> ../Objects/dictobject.c:1086
> #9 0x55888ebf8339 in subtype_clear (self= 0x7fb673bbaa10>) at ../Objects/typeobject.c:912
> #10 0x55888eb3860c in delete_garbage (old=0x55888eda25b0
> , collectable=0x7ffd0ab2f4e0) at
> ../Modules/gcmodule.c:817
> #11 collect (generation=2) at ../Modules/gcmodule.c:981
> #12 0x55888eb9fcaa in PyGC_Collect () at ../Modules/gcmodule.c:1439
> #13 0x55888eb9ef44 in Py_Finalize () at ../Python/pythonrun.c:455
> #14 0x55888ebc92c8 in Py_Exit (sts=0) at ../Python/pythonrun.c:1795
> #15 0x55888ebc6a8d in handle_system_exit () at ../Python/pythonrun.c:1160
> #16 0x55888ebc63b6 in PyErr_PrintEx (set_sys_last_vars=,
> set_sys_last_vars=) at ../Python/pythonrun.c:1170
> #17 0x55888ebc527d in RunModule (module=,
> set_argv0=) at ../Modules/main.c:199
> #18 0x55888eb2cea2 in Py_Main (argc=, argv=0x7ffd0ab2f888)
> at ../Modules/main.c:592
> #19 0x7fb674bc209b in __libc_start_main (main=0x55888eb2ca90 ,
> argc=5, argv=0x7ffd0ab2f888, init=, fini=,
> rtld_fini=, stack_end=0x7ffd0ab2f878) at
> ../csu/libc-start.c:308
> #20 0x55888eb2c9ca in _start () at ../Modules/gcmodule.c:1003
>
Bug#927785: pyparted: FTBFS randomly (Floating point exception)
Hi,
Thanks Santiago and Bernhard!
On 4/23/19 6:35 AM, Bernhard Übelacker wrote:
> Dear Maintainer,
> I just tried to find some more information.
>
> I could reproduce the issue in a unstable amd64 VM
> on the second attempt.
>
> It looks like in a garbage collector run a
> division by zero is triggered because we
> get there with sector_size==0.
>
> If wanted I can forward the core file.
It is a good idea.
I read the debugging.txt file. divisor 0 is there.
The message is better now:
"Program terminated with signal SIGFPE, Arithmetic exception."
I can nothing about it. Just send a report to upstream.
Regards,
Herbert
>
> Kind regards,
> Bernhard
>
>
>
> 1708gpt_alloc_metadata (PedDisk *disk)
> 1709{
> ...
> 1718 gptlength = ped_div_round_up (sizeof (GuidPartitionTableHeader_t),
> 1719disk->dev->sector_size);
>
>
> (gdb) bt
> #0 0x7fb67449e727 in ped_div_round_up (divisor=0, numerator=100) at
> ../../../include/parted/natmath.h:130
> #1 gpt_alloc_metadata (disk=0x558890efb060) at
> ../../../libparted/labels/gpt.c:1718
> #2 0x7fb67448851a in _disk_alloc_metadata (disk=0x558890efb060) at
> ../../libparted/disk.c:1164
> #3 _disk_pop_update_mode (disk=0x558890efb060) at ../../libparted/disk.c:1164
> #4 0x7fb6744890b2 in ped_disk_delete_all
> (disk=disk@entry=0x558890efb060) at ../../libparted/disk.c:2104
> #5 0x7fb67449dd59 in gpt_free (disk=0x558890efb060) at
> ../../../libparted/labels/gpt.c:622
> #6 0x7fb674abee82 in ?? ()
> #7 0x7fb673c46348 in ?? ()
> #8 0x55888eb4b67b in dict_dealloc (mp=0x7fb673c46280) at
> ../Objects/dictobject.c:1086
> #9 0x55888ebf8339 in subtype_clear (self= 0x7fb673bbaa10>) at ../Objects/typeobject.c:912
> #10 0x55888eb3860c in delete_garbage (old=0x55888eda25b0
> , collectable=0x7ffd0ab2f4e0) at
> ../Modules/gcmodule.c:817
> #11 collect (generation=2) at ../Modules/gcmodule.c:981
> #12 0x55888eb9fcaa in PyGC_Collect () at ../Modules/gcmodule.c:1439
> #13 0x55888eb9ef44 in Py_Finalize () at ../Python/pythonrun.c:455
> #14 0x55888ebc92c8 in Py_Exit (sts=0) at ../Python/pythonrun.c:1795
> #15 0x55888ebc6a8d in handle_system_exit () at ../Python/pythonrun.c:1160
> #16 0x55888ebc63b6 in PyErr_PrintEx (set_sys_last_vars=,
> set_sys_last_vars=) at ../Python/pythonrun.c:1170
> #17 0x55888ebc527d in RunModule (module=,
> set_argv0=) at ../Modules/main.c:199
> #18 0x55888eb2cea2 in Py_Main (argc=, argv=0x7ffd0ab2f888)
> at ../Modules/main.c:592
> #19 0x7fb674bc209b in __libc_start_main (main=0x55888eb2ca90 ,
> argc=5, argv=0x7ffd0ab2f888, init=, fini=,
> rtld_fini=, stack_end=0x7ffd0ab2f878) at
> ../csu/libc-start.c:308
> #20 0x55888eb2c9ca in _start () at ../Modules/gcmodule.c:1003
>
Bug#927785: pyparted: FTBFS randomly (Floating point exception)
Dear Maintainer,
I just tried to find some more information.
I could reproduce the issue in a unstable amd64 VM
on the second attempt.
It looks like in a garbage collector run a
division by zero is triggered because we
get there with sector_size==0.
If wanted I can forward the core file.
Kind regards,
Bernhard
1708gpt_alloc_metadata (PedDisk *disk)
1709{
...
1718 gptlength = ped_div_round_up (sizeof (GuidPartitionTableHeader_t),
1719disk->dev->sector_size);
(gdb) bt
#0 0x7fb67449e727 in ped_div_round_up (divisor=0, numerator=100) at
../../../include/parted/natmath.h:130
#1 gpt_alloc_metadata (disk=0x558890efb060) at
../../../libparted/labels/gpt.c:1718
#2 0x7fb67448851a in _disk_alloc_metadata (disk=0x558890efb060) at
../../libparted/disk.c:1164
#3 _disk_pop_update_mode (disk=0x558890efb060) at ../../libparted/disk.c:1164
#4 0x7fb6744890b2 in ped_disk_delete_all (disk=disk@entry=0x558890efb060)
at ../../libparted/disk.c:2104
#5 0x7fb67449dd59 in gpt_free (disk=0x558890efb060) at
../../../libparted/labels/gpt.c:622
#6 0x7fb674abee82 in ?? ()
#7 0x7fb673c46348 in ?? ()
#8 0x55888eb4b67b in dict_dealloc (mp=0x7fb673c46280) at
../Objects/dictobject.c:1086
#9 0x55888ebf8339 in subtype_clear (self=)
at ../Objects/typeobject.c:912
#10 0x55888eb3860c in delete_garbage (old=0x55888eda25b0
, collectable=0x7ffd0ab2f4e0) at
../Modules/gcmodule.c:817
#11 collect (generation=2) at ../Modules/gcmodule.c:981
#12 0x55888eb9fcaa in PyGC_Collect () at ../Modules/gcmodule.c:1439
#13 0x55888eb9ef44 in Py_Finalize () at ../Python/pythonrun.c:455
#14 0x55888ebc92c8 in Py_Exit (sts=0) at ../Python/pythonrun.c:1795
#15 0x55888ebc6a8d in handle_system_exit () at ../Python/pythonrun.c:1160
#16 0x55888ebc63b6 in PyErr_PrintEx (set_sys_last_vars=,
set_sys_last_vars=) at ../Python/pythonrun.c:1170
#17 0x55888ebc527d in RunModule (module=,
set_argv0=) at ../Modules/main.c:199
#18 0x55888eb2cea2 in Py_Main (argc=, argv=0x7ffd0ab2f888)
at ../Modules/main.c:592
#19 0x7fb674bc209b in __libc_start_main (main=0x55888eb2ca90 ,
argc=5, argv=0x7ffd0ab2f888, init=, fini=,
rtld_fini=, stack_end=0x7ffd0ab2f878) at ../csu/libc-start.c:308
#20 0x55888eb2c9ca in _start () at ../Modules/gcmodule.c:1003
# Buster amd64 qemu VM 2019-04-23
apt update
apt dist-upgrade
apt build-dep pyparted
apt install systemd-coredump fakeroot gdb python2.7-dbg libparted2-dbgsym
mkdir /home/benutzer/source/pyparted/orig -p
cd/home/benutzer/source/pyparted/orig
apt source pyparted
cd
mkdir /home/benutzer/source/libparted2/orig -p
cd/home/benutzer/source/libparted2/orig
apt source libparted2
cd
cd /home/benutzer/source/pyparted
cp -a orig try1
cd try1/pyparted-3.11.2
dpkg-buildpackage
#
Switched to unstable
dpkg-buildpackage
-> first attempt succeeded, second failed
...
runTest (tests.test_parted_device.DeviceWriteTestCase) ... skipped
'Unimplemented test case.'
runTest (tests.test_parted_filesystem.FileSystemGetPedFileSystemTestCase) ...
skipped 'Unimplemented test case.'
runTest (tests.test_parted_filesystem.FileSystemGetSetTestCase) ... skipped
'Unimplemented test case.'
runTest (tests.test_parted_filesystem.FileSystemNewTestCase) ... skipped
'Unimplemented test case.'
runTest (tests.test_parted_filesystem.FileSystemStrTestCase) ... skipped
'Unimplemented test case.'
--
Ran 273 tests in 0.905s
OK (skipped=118)
Floating point exception (core dumped)
E: pybuild pybuild:341: test: plugin distutils failed with: exit code=136: cd
/home/benutzer/source/pyparted/try1/pyparted-3.11.2/.pybuild/cpython2_2.7_parted/build;
python2.7 -m unittest discover -v
dh_auto_test: pybuild --test -i python{version} -p 2.7 returned exit code 13
make: *** [debian/rules:9: build] Fehler 25
dpkg-buildpackage: Fehler: Unterprozess debian/rules build lieferte Exitstatus 2
dmesg:
[ 568.228710] traps: python2.7[15867] trap divide error ip:7fb67449e727
sp:7ffd0ab2f360 error:0 in libparted.so.2.0.1[7fb674482000+2c000]
root@debian:~# coredumpctl list
TIMEPID UID GID SIG COREFILE EXE
Tue 2019-04-23 10:45:12 CEST 15867 1000 1000 8 present /usr/bin/python2.7
root@debian:~# coredumpctl gdb 15867
PID: 15867 (python2.7)
UID: 1000 (benutzer)
GID: 1000 (benutzer)
Signal: 8 (FPE)
Timestamp: Tue 2019-04-23 10:45:12 CEST (2min 45s ago)
Command Line: python2.7 -m unittest discover -v
Executable: /usr/bin/python2.7
Control Group: /user.slice/user-1000.slice/session-3.scope
Unit: session-3.scope
Slice: user-1000.slice
Session: 3
Owner UID: 1000 (benutzer)
Boot ID: 04731d72fe444b5c8567e7172ad9cf8a
Machine ID: 32f43b50ac8c4b21941bc0b02f8e7811
Hostname: debian
Storage:
/var/lib/systemd
Bug#927785: pyparted: FTBFS randomly (Floating point exception)
Package: src:pyparted Version: 3.11.2-10 Severity: important Tags: ftbfs Dear maintainer: I tried to build this package in sid but it failed: [...] debian/rules build-indep dh build-indep --buildsystem pybuild --with python2,python3 dh_update_autotools_config -i -O--buildsystem=pybuild dh_autoreconf -i -O--buildsystem=pybuild dh_auto_configure -i -O--buildsystem=pybuild I: pybuild base:217: python2.7 setup.py config running config I: pybuild base:217: python3.7 setup.py config running config dh_auto_build -i -O--buildsystem=pybuild I: pybuild base:217: /usr/bin/python setup.py build running build running build_py creating /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/partition.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/disk.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/cachedlist.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/decorators.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/constraint.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/__init__.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/geometry.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/filesystem.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/alignment.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted copying src/parted/device.py -> /<>/.pybuild/cpython2_2.7_parted/build/parted running build_ext building '_ped' extension creating build creating build/temp.linux-amd64-2.7 creating build/temp.linux-amd64-2.7/src x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/_pedmodule.c -o build/temp.linux-amd64-2.7/src/_pedmodule.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/convert.c -o build/temp.linux-amd64-2.7/src/convert.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pyconstraint.c -o build/temp.linux-amd64-2.7/src/pyconstraint.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pydevice.c -o build/temp.linux-amd64-2.7/src/pydevice.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pydisk.c -o build/temp.linux-amd64-2.7/src/pydisk.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pyfilesys.c -o build/temp.linux-amd64-2.7/src/pyfilesys.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pygeom.c -o build/temp.linux-amd64-2.7/src/pygeom.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pynatmath.c -o build/temp.linux-amd64-2.7/src/pynatmath.o x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -g -O2 -fdebug-prefix-map=/<>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DPYPARTED_VERSION="3.11.2" -Iinclude -I/usr/include/python2.7 -c src/pytimer.c -o build/temp.linux-amd64-2.7/src/pytimer.o x86_64-linux-gnu-gcc -pthread
