[Bug 99488] [r600g]OpenCL driver causes ImageMagick to hang on JPEG input in Gaussian Blur kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99488

--- Comment #4 from Michel Dänzer <michel at daenzer.net> ---
(In reply to Jan Vesely from comment #3)
> > (gdb) info threads 
> >   Id   Target Id         Frame 
> > * 1    Thread 0x39ac9cdf7c0 (LWP 3806) "display" 0x0000039abefef921 in
> > llvm::MachineInstr::findRegisterDefOperandIdx(unsigned int, bool, bool,
> > llvm::TargetRegisterInfo const*) const () from /usr/lib/libLLVM-5.0svn.so
> 
> can you get backtrace of this thread?
> does it ever leave this function? you can check by adding breakpoint on that
> function and checking if it gets hit.
> this can be repeated going up the stack to find the function that won't exit.

FWIW, for this purpose I usually just use "finish" repeatedly until it doesn't
terminate.

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