[Bug 75279] XCloseDisplay() takes one minute around nouveau_dri.so, freezing Firefox startup

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=75279

--- Comment #27 from Emil Velikov <emil.l.velikov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> ---
(In reply to comment #26)
[...]
> It happens when I try to connect to my youtube account. And after 30 seconds
> or so, plugin-container works as expected.
> 
> Here is bt full log :
> 
> (gdb) bt full
> #0  0x00007fb478a49337 in sched_yield () from /usr/lib/libc.so.6
> No symbol table info available.
> #1  0x00007fb46670ee41 in ?? () from /usr/lib/vdpau/libvdpau_nouveau.so.1
> No symbol table info available.
> #2  0x00007fb46679eca5 in ?? () from /usr/lib/vdpau/libvdpau_nouveau.so.1
> No symbol table info available.
> #3  0x00007fb4666019c1 in vl_screen_destroy ()
>    from /usr/lib/vdpau/libvdpau_nouveau.so.1
> No symbol table info available.
> #4  0x00007fb4667073a1 in vlVdpDeviceDestroy ()
>    from /usr/lib/vdpau/libvdpau_nouveau.so.1
> No symbol table info available.
> #5  0x00007fb46b4252a8 in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> #6  0x00007fb46b0871b5 in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> #7  0x00007fb46b088000 in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> #8  0x00007fb46b6167c8 in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> #9  0x00007fb46b61cf7d in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> #10 0x00007fb46b61ea6b in ?? () from
> /usr/lib/mozilla/plugins/libflashplayer.so
> No symbol table info available.
> Cannot access memory at address 0x7fffc4f85b78
> 
I was afraid that your mesa build does not have debug symbols. Would you mind
rebuilding and installing the debug symbols ?

* Can you grab the PKGBUILD [1]
* Add "options=('debug')" around the source line
* rebuild (makepkg) and install (do not forget the -debug* packages)

> Some technical infos : nouveau 1.0.10, mesa 10.0.3
> 
> All this on an archlinux 64 bits, up-to-date.

FWIW I cannot reproduce the crash, although sched_yield is still around

Cheers

[1]
https://projects.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/mesa

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