[Webkit-unassigned] [Bug 165656] [GTK] UIProcess from WebKitGtk+ 2.15.2 SIGSEGVs in WebKit::AcceleratedBackingStoreX11::update(WebKit::LayerTreeContext const&) () at Source/WebKit2/UIProcess/gtk/AcceleratedBackingStoreX11.cpp:145

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=165656

--- Comment #7 from Carlos Alberto Lopez Perez <clopez at igalia.com> ---
(In reply to comment #4)
> The backtraces you attached don't have any local variables or line numbers.
> Can you do a build with debug info (-DCMAKE_BUILD_TYPE=RelWithDebInfo) and
> post another backtrace taken with 'bt full'? They're also missing debuginfo
> from libX11.so which needs to be fixed. I would always insist on this
> quality level to have a more useful crash report.

The backtraces have line numbers, why you say that?

They are much more readable if you demangle the symbols. Example:

curl -s 'https://bug-165656-attachments.webkit.org/attachment.cgi?id=297082' | c++filt 


What I see in this backtrace is that the crash happens because some X error not trapped is emitted. This probably means that the fix on bug 164303 is incompleted and more X error than BadDrawable and BadDamage should be trapped.

It will be useful to know which X error caused this.

Did you got printed on the terminal some information about the X error that caused webkit to abort?

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