PhantomJS crash: Locking assertion failure

[martin-romano]

martin.t...@gmail.com commented:

Which version of PhantomJS are you using? 1.6, built from sources

What steps will reproduce the problem?

1. any attempt to run phantomjs

Which operating system are you using?
CentOS 5.7

Did you use binary PhantomJS or did you compile it from source?
Built from source

Please provide any additional information below.

The executable that I compiled from source runs correctly on a different CentOS 5.7 box (the one I built it on) - I haven't discovered yet what's different between the machine that works and the one that fails.

When I run PhantomJS 1.6.0 Linux x86-64 (Dynamic build) downloaded from code.google.com on this system, it fails with this message:
./phantomjs: error while loading shared libraries: libexpat.so.1: cannot open shared object file: No such file or directory
This is why I tried building from source.

Here's the console output running the compiled-from-source version:
./phantomjs --version
Locking assertion failure. Backtrace:

0 /usr/lib64/libxcb-xlib.so.0 [0x318220090c]

1 /usr/lib64/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x3182200a14]

2 /usr/lib64/libX11.so.6 [0x318324a0f0]

3 /usr/lib64/libXfixes.so.3(XFixesQueryVersion+0x4f) [0x3188c03c9f]

4 /usr/lib64/qt47/libQtGui.so.4 [0x2b189edf28ce]

5 /usr/lib64/qt47/libQtGui.so.4(_ZN19QApplicationPrivate9constructEP9_XDisplaymm+0xde) [0x2b189ed7341e]

6 /usr/lib64/qt47/libQtGui.so.4(_ZN12QApplicationC1ERiPPci+0x72) [0x2b189ed743a2]

7 ./phantomjs [0x4217bf]

8 /lib64/libc.so.6(__libc_start_main+0xf4) [0x318061d994]

9 ./phantomjs(_ZN7QObject5eventEP6QEvent+0x349) [0x40d869]

phantomjs: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
PhantomJS has crashed. Please file a bug report at https://code.google.com/p/phantomjs/issues/entry and attach the crash dump file: /tmp/1aad3a49-68ac-3951-5068982b-30ddec3d.dmp
Aborted

Disclaimer:
This issue was migrated on 2013-03-15 from the project's former issue tracker on Google Code, Issue #658.
🌟   2 people had starred this issue at the time of migration.

[ariya]

ariya.hi...@gmail.com commented:

Another CentOS problem, very similar to issue 660.

Again, this is very suspicious why PhantomJS binary needs to load the system /usr/lib64/qt47/libQtGui.so.4 at all (see my explanation -> issue 660).

[ariya]

ariya.hi...@gmail.com commented:

Can you try it again with 1.8.2?

[ento]

I had the same error with phantomjs 1.3.0, built from source on CentOS 5.5. The error went away after upgrading to phantomjs 1.9.1 (also built from source).

Note: setting LIBXCB_ALLOW_SLOPPY_LOCK=1 also helped; it just makes libxcb ignore the assertion failure.

$ LIBXCB_ALLOW_SLOPPY_LOCK=1 DISPLAY=:0 phantomjs --version
Locking assertion failure.  Backtrace:
#0 /usr/lib64/libxcb-xlib.so.0 [0x2aaab256d90c]
#1 /usr/lib64/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x2aaab256da14]
#2 /usr/lib64/libX11.so.6 [0x2aaab03660f0]
#3 /usr/lib64/libXfixes.so.3(XFixesQueryVersion+0x4f) [0x2aaaaf643c9f]
#4 /usr/lib64/qt47/libQtGui.so.4 [0x2aaaac6a38ce]
#5 /usr/lib64/qt47/libQtGui.so.4(_ZN19QApplicationPrivate9constructEP9_XDisplaymm+0xde) [0x2aaaac62441e]
#6 /usr/lib64/qt47/libQtGui.so.4(_ZN12QApplicationC1ERiPPci+0x72) [0x2aaaac6253a2]
#7 phantomjs [0x415b44]
#8 /lib64/libc.so.6(__libc_start_main+0xf4) [0x2aaaae331994]
#9 phantomjs(_ZN8QWebPage13triggerActionENS_9WebActionEb+0x14a9) [0x4092f9]
1.3.0

[stale]

Due to our very limited maintenance capacity (see #14541 for more details), we need to prioritize our development focus on other tasks. Therefore, this issue will be automatically closed. In the future, if we see the need to attend to this issue again, then it will be reopened. Thank you for your contribution!