Ubuntu
webkit2gtk package

WebKitWebProcess crashed with SIGSEGV in _priv_gst_element_state_changed()

Bug #1718631 reported by Amr Ibrahim on 2017-09-21

10

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	WebKit	Invalid	Medium	auto-bugs.webkit.org #177297
	webkit2gtk (Ubuntu)	New	Medium	Unassigned

Bug Description

It crashed while I was opening a website of an online course on edx.org. The website has a video and JavaScript elements.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: libwebkit2gtk-4.0-37 2.16.6-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-96.119-generic 4.4.83
Uname: Linux 4.4.0-96-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Sep 21 11:58:37 2017
ExecutablePath: /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitWebProcess
InstallationDate: Installed on 2017-06-21 (91 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
ProcCmdline: /usr/lib/x86_64-linux-gnu/webkit2gtk-4.0/WebKitWebProcess 28
SegvAnalysis:
Segfault happened at: 0x7fc3eea246ba <start_thread+202>: mov %rax,%fs:0x630
PC (0x7fc3eea246ba) ok
source "%rax" ok
destination "%fs:0x630" (0x00000630) not located in a known VMA region (needed writable region)!
Stack memory exhausted (SP below stack segment)
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: webkit2gtk
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
gst_element_continue_state () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
gst_element_change_state () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
gst_element_change_state () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
Title: WebKitWebProcess crashed with SIGSEGV in gst_element_continue_state()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

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Revision history for this message

Amr Ibrahim (amribrahim1987) wrote on 2017-09-21:

#1

Dependencies.txt Edit (8.7 KiB, text/plain; charset="utf-8")
Disassembly.txt Edit (1.1 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (11.8 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (955 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (311 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (122.9 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (967 bytes, text/plain; charset="utf-8")
Registers.txt Edit (734 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (6.4 KiB, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (30.2 KiB, text/plain; charset="utf-8")

information type:

Private → Public

Revision history for this message

Apport retracing service (apport) wrote on 2017-09-21:

#2

StacktraceTop:
_priv_gst_element_state_changed (element=element@entry=0x7fc36c10e0d0, oldstate=oldstate@entry=GST_STATE_PAUSED, newstate=newstate@entry=GST_STATE_READY, pending=pending@entry=GST_STATE_VOID_PENDING) at gstelement.c:2279
gst_element_continue_state (element=element@entry=0x7fc36c10e0d0, ret=ret@entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2382
gst_element_change_state (element=element@entry=0x7fc36c10e0d0, transition=<optimized out>) at gstelement.c:2687
gst_element_continue_state (element=element@entry=0x7fc36c10e0d0, ret=ret@entry=GST_STATE_CHANGE_SUCCESS) at gstelement.c:2356
gst_element_change_state (element=element@entry=0x7fc36c10e0d0, transition=transition@entry=GST_STATE_CHANGE_PLAYING_TO_PAUSED) at gstelement.c:2687

Revision history for this message

Apport retracing service (apport) wrote on 2017-09-21: Stacktrace.txt

#3

Stacktrace.txt Edit (19.6 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2017-09-21: StacktraceSource.txt

#4

StacktraceSource.txt Edit (11.2 KiB, text/plain)

Revision history for this message

Apport retracing service (apport) wrote on 2017-09-21: ThreadStacktrace.txt

#5

ThreadStacktrace.txt Edit (78.6 KiB, text/plain)

Changed in webkit2gtk (Ubuntu):
importance:	Undecided → Medium
summary:	- WebKitWebProcess crashed with SIGSEGV in gst_element_continue_state() + WebKitWebProcess crashed with SIGSEGV in + _priv_gst_element_state_changed()
tags:	removed: need-amd64-retrace

Bug Watch Updater (bug-watch-updater) on 2017-09-21

Changed in webkit-open-source:
importance:	Unknown → Medium
status:	Unknown → Confirmed

Bug Watch Updater (bug-watch-updater) on 2018-02-20

Changed in webkit-open-source:
status:	Confirmed → Invalid

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