Bug 795158 – Hang when externally deleting music files while listening to them

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Bug 795158 - Hang when externally deleting music files while listening to them


Summary:	Hang when externally deleting music files while listening to them


Status:	RESOLVED OBSOLETE

Product:	GStreamer
Classification:	Platform
Component:	gst-plugins-base
Version:	unspecified
Hardware:	Other Linux

Importance:	Normal critical
Target Milestone:	git master
Assigned To:	GStreamer Maintainers
QA Contact:	GStreamer Maintainers

URL:
Whiteboard:

Depends on:
Blocks:

Reported:	2018-04-11 14:17 UTC by André Klapper
Modified:	2018-11-03 12:04 UTC

See Also:
GNOME target:	---
GNOME version:	---

Attachments
Screenshot of hung state (221.26 KB, image/png) 2018-04-11 14:17 UTC, André Klapper	Details

Description André Klapper 2018-04-11 14:17:34 UTC

Created attachment 370795 [details]
Screenshot of hung state

rhythmbox-3.4.2-1.fc27.x86_64

In the terminal, I rm -rf'ed a folder with a bunch of music files indexed by Rhythmbox while they were being played by Rhythmbox. The application hung.

$:acko\> gdb -p 2405
GNU gdb (GDB) Fedora 8.0.1-36.fc27
Attaching to process 2405
[New LWP 2444]
[New LWP 2445]
[New LWP 2448]
[New LWP 2477]
[New LWP 2481]
[New LWP 28141]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
__lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
135	2:	movl	%edx, %eax
(gdb) thread apply all bt full

+ Trace 238549

Thread 6 (Thread 0x7f19f10fc700 (LWP 2481))

#0 syscall
at ../sysdeps/unix/sysv/linux/x86_64/syscall.S line 38
#1 g_cond_wait
at gthread-posix.c line 1395
#2 pre_activate
at gstpad.c line 998
#3 activate_mode_internal
at gstpad.c line 1213
#4 gst_pad_activate_mode
at gstpad.c line 1313
#5 activate_mode_internal
at gstpad.c line 1216
#6 gst_pad_activate_mode
at gstpad.c line 1313
#7 activate_mode_internal
at gstpad.c line 1184
#8 gst_pad_activate_mode
at gstpad.c line 1313
#9 gst_tag_demux_sink_activate
at gsttagdemux.c line 1563
#10 gst_pad_set_active
at gstpad.c line 1099
#11 activate_pads
at gstelement.c line 2831
#12 gst_iterator_fold
at gstiterator.c line 617
#13 iterator_activate_fold_with_resync
at gstelement.c line 2855
#14 gst_element_pads_activate
at gstelement.c line 2899
#15 gst_element_change_state_func
at gstelement.c line 2951
#16 gst_tag_demux_change_state
at gsttagdemux.c line 1696
#17 gst_element_change_state
at gstelement.c line 2743
#18 gst_element_set_state_func
at gstelement.c line 2697
#19 connect_pad
at gstdecodebin2.c line 2493
#20 analyze_new_pad
at gstdecodebin2.c line 1787
#21 type_found
at gstdecodebin2.c line 2862
#22 ffi_call_unix64
at ../src/x86/unix64.S line 76
#23 ffi_call
at ../src/x86/ffi64.c line 525
#28 <emit signal ??? on instance 0x7f19f82371e0 [GstTypeFindElement]>
at gsignal.c line 3447
#29 gst_type_find_element_emit_have_type
at gsttypefindelement.c line 238
#30 gst_type_find_element_loop
at gsttypefindelement.c line 1169
#31 gst_task_func
at gsttask.c line 335
#32 g_thread_pool_thread_proxy
at gthreadpool.c line 307
#33 g_thread_proxy
at gthread.c line 784
#34 start_thread
at pthread_create.c line 465
#35 clone
at ../sysdeps/unix/sysv/linux/x86_64/clone.S line 95

rax            0xfffffffffffffe00	-512
rbx            0x5572987dd3c0	93950673015744
rcx            0x7f1a2715ab1d	139750301608733
rdx            0x2	2
rsi            0x80	128
rdi            0x557299570dc0	93950687251904
rbp            0x5572987dd3d8	0x5572987dd3d8
rsp            0x7ffdb1481678	0x7ffdb1481678
r8             0x557299570dc0	93950687251904
r9             0x7f1a2804f650	139750317291088
r10            0x0	0
r11            0x202	514
r12            0x5572987dd430	93950673015856
r13            0x7f1a0000f830	139749645940784
r14            0x7f1a2804f650	139750317291088
r15            0x1	1
rip            0x7f1a2715ab1d	0x7f1a2715ab1d <__lll_lock_wait+29>
eflags         0x202	[ IF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0
(gdb) quit
A debugging session is active.

	Inferior 1 [process 2405] will be detached.

Quit anyway? (y or n) y

Comment 1 Jonathan Matthew 2018-04-11 22:28:38 UTC

All rhythmbox is trying to do here is set playbin to READY, so I think this bug belongs to gstreamer.  What version of gstreamer and its plugin packages are you using?

Comment 2 André Klapper 2018-04-12 08:36:18 UTC

$:acko\> rpm -qa | grep gstreamer
gstreamer1-1.12.4-1.fc27.x86_64
gstreamer1-libav-1.12.4-1.fc27.x86_64
gstreamer1-plugins-bad-free-1.12.4-1.fc27.x86_64
gstreamer1-plugins-bad-free-fluidsynth-1.12.4-1.fc27.x86_64
gstreamer1-plugins-bad-free-gtk-1.12.4-1.fc27.x86_64
gstreamer1-plugins-bad-freeworld-1.12.4-1.fc27.x86_64
gstreamer1-plugins-base-1.12.4-1.fc27.x86_64
gstreamer1-plugins-base-tools-1.12.4-1.fc27.x86_64
gstreamer1-plugins-good-1.12.4-1.fc27.x86_64
gstreamer1-plugins-ugly-free-1.12.4-2.fc27.x86_64
gstreamer1-plugins-ugly-1.12.4-3.fc27.x86_64

Comment 3 GStreamer system administrator 2018-11-03 12:04:57 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/issues/432.