Bug#1023649: ghc: FTBFS haskell-random powerpc (ghc Segmentation fault)

John Paul Adrian Glaubitz glaubitz at physik.fu-berlin.de
Mon Oct 9 08:32:30 BST 2023


Hi Christian!

On Mon, 2023-10-09 at 09:25 +0200, Christian Marillat wrote:
> > On Mon, 2023-10-09 at 08:57 +0200, Christian Marillat wrote:
> > > > Could you provide the disassembled code for the affected code section?
> 
> Is this enough ?
> 
> ,----
> > Dump of assembler code for function __GI_kill:
> >    0xf7644b94 <+0>:	li      r0,37
> >    0xf7644b98 <+4>:	sc
> > => 0xf7644b9c <+8>:	bnslr+
> >    0xf7644ba0 <+12>:	b       0xf762a200 <__syscall_error>
> > End of assembler dump.
> `----

I think the interesting part would be the disassembly of base_GHCziFloat_floatToDigits_closure ()
where the actual crash happened. Your disassembly seems to show parts of the segfault handler.

Adrian

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