Re: master 5ee43ba0df causing display hangs?

[Eli Zaretskii <eliz@gnu.org>]

On December 10, 2019 12:57:24 PM GMT+02:00, Yuri D'Elia <wavexx@thregr.org> wrote:
> So, I stopped while stuck, so here's a sample of the stack:
> 
> #0  0x0000555555886011 in assq_no_quit (key=XIL(0xb490),
> list=XIL(0x5555562b35f3)) at fns.c:1626
> #1  0x00005555556e0be8 in lface_from_face_name_no_resolve
> (f=0x555556065240, face_name=XIL(0xb490), signal_p=false) at
> xfaces.c:1846
> #2  0x00005555556e0cbb in get_lface_attributes_no_remap
> (f=0x555556065240, face_name=XIL(0xb490), attrs=0x7fffffff62b0,
> signal_p=false)
>     at xfaces.c:1888
> #3  0x00005555556e0e1d in get_lface_attributes
> (w=0x5555576a24a0, f=0x555556065240, face_name=XIL(0xb490),
> attrs=0x7fffffff62b0, signal_p=false,
> named_merge_points=0x7fffffff6460) at xfaces.c:1939
> #4  0x00005555556e18ac in face_inherited_attr
> (w=0x5555576a24a0, f=0x555556065240, attrs=0x7fffffff63c0,
> attr_idx=LFACE_EXTEND_INDEX, named_merge_points=0x7fffffff6460) at
> xfaces.c:2173
> #5  0x00005555556e1b2e in merge_named_face
> (w=0x5555576a24a0, f=0x555556065240, face_name=XIL(0xf84c80),
> to=0x7fffffff67f0, named_merge_points=0x7fffffff6460,
> attr_filter=LFACE_EXTEND_INDEX) at xfaces.c:2223
> #6  0x00005555556e2bf1 in merge_face_ref
> (w=0x5555576a24a0, f=0x555556065240, face_ref=XIL(0xf84c80),
> to=0x7fffffff67f0, err_msgs named_merge_points=0x0,
> attr_filter=LFACE_EXTEND_INDEX) at xfaces.c:2696

> The loop is stuck at #4, in face_inherited_attr.
> As described above, attr_val is not changing:
> 
> (gdb) p attr_val
> $16 = XIL(0xde90)
> (gdb) pp attr_val
> unspecified
> (gdb) p attr_idx
> $17 = LFACE_EXTEND_INDEX
> (gdb) pp parent_face
> 'mu4e-header-value-face
> 
> Now, going up the stack
> 
> #0  get_lface_attributes (w=0x5555576c3fc0, f=0x55555617f4d0,
> face_name=XIL(0xb490),
> attrs=0x7fffffff62b0, signal_p=false,
> named_merge_points=0x7fffffff6460) at xfaces.c:1914
> (gdb) pp face_name
> quote
> 
> mmmh?


Thanks.

Please show the face that is refetenced in frame #5 as face_name, and all its attributes.  AFAIU, this is the original face being merged here.

The 'quote' thing probably means some attribute is redundantly quoted, but maybe I'm missing something.