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bug#27668: 26.0.50; Crash with display-line-numbers t
From: |
Robert Pluim |
Subject: |
bug#27668: 26.0.50; Crash with display-line-numbers t |
Date: |
Wed, 12 Jul 2017 20:26:50 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> Well, I cannot know what kind of display features you have there; what
> is just 63 characters in the file could have all kind of stuff
> appended to it on display...
>
> Anyway, what do these 2 show:
>
> (gdb) p it->glyph_row->enabled_p
$1 = true
> (gdb) p it->glyph_row->displays_text_p
$2 = true
>
> Also, is the previous screen line OK? This will show:
>
> (gdb) pgrowx (it->glyph_row-1)
(gdb) pgrowx (it->glyph_row-1)
TEXT: 134 glyphs
0 0: CHAR[ ] pos=-1 blev=2,btyp=EN w=16 a+d=25+6 face=23 MB AVOID
1 16: CHAR[2] pos=-1 blev=2,btyp=EN w=16 a+d=25+6 face=23 MB AVOID
2 32: CHAR[3] pos=-1 blev=2,btyp=EN w=16 a+d=25+6 face=23 MB AVOID
3 48: CHAR[6] pos=-1 blev=2,btyp=EN w=16 a+d=25+6 face=23 MB AVOID
4 64: CHAR[ ] pos=-1 blev=2,btyp=EN w=16 a+d=25+6 face=23 MB AVOID
5 80: CHAR[w] pos=9489 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
6 96: CHAR[i] pos=9490 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
7 112: CHAR[l] pos=9491 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
8 128: CHAR[l] pos=9492 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
9 144: CHAR[ ] pos=9493 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
11 176: CHAR[e] pos=9495 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
12 192: CHAR[ ] pos=9496 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
13 208: CHAR[r] pos=9497 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
14 224: CHAR[a] pos=9498 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
15 240: CHAR[i] pos=9499 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
16 256: CHAR[s] pos=9500 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
17 272: CHAR[e] pos=9501 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
18 288: CHAR[d] pos=9502 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
19 304: CHAR[ ] pos=9503 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
20 320: CHAR[w] pos=9504 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
21 336: CHAR[h] pos=9505 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
22 352: CHAR[e] pos=9506 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
23 368: CHAR[n] pos=9507 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
24 384: CHAR[ ] pos=9508 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
25 400: CHAR[t] pos=9509 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
26 416: CHAR[h] pos=9510 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
27 432: CHAR[e] pos=9511 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
28 448: CHAR[ ] pos=9512 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
29 464: CHAR[h] pos=9513 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
30 480: CHAR[o] pos=9514 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
31 496: CHAR[s] pos=9515 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
32 512: CHAR[t] pos=9516 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
33 528: CHAR[n] pos=9517 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
34 544: CHAR[a] pos=9518 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
35 560: CHAR[m] pos=9519 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
36 576: CHAR[e] pos=9520 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
37 592: CHAR[ ] pos=9521 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
38 608: CHAR[d] pos=9522 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
39 624: CHAR[o] pos=9523 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
40 640: CHAR[e] pos=9524 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
41 656: CHAR[s] pos=9525 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
42 672: CHAR[ ] pos=9526 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
43 688: CHAR[n] pos=9527 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
44 704: CHAR[o] pos=9528 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
45 720: CHAR[t] pos=9529 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
46 736: CHAR[ ] pos=9530 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
47 752: CHAR[m] pos=9531 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
48 768: CHAR[a] pos=9532 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
49 784: CHAR[t] pos=9533 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
50 800: CHAR[c] pos=9534 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
51 816: CHAR[h] pos=9535 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
52 832: CHAR[ ] pos=9536 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
53 848: CHAR[t] pos=9537 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
54 864: CHAR[h] pos=9538 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
55 880: CHAR[e] pos=9539 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
56 896: CHAR[ ] pos=9540 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
57 912: CHAR[p] pos=9541 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
58 928: CHAR[r] pos=9542 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
59 944: CHAR[e] pos=9543 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
60 960: CHAR[s] pos=9544 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
61 976: CHAR[e] pos=9545 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
---Type <return> to continue, or q <return> to quit---
62 992: CHAR[n] pos=9546 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
63 1008: CHAR[t] pos=9547 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
64 1024: CHAR[e] pos=9548 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
65 1040: CHAR[d] pos=9549 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
66 1056: CHAR[ ] pos=0 blev=0,btyp=B w=16 a+d=25+6 face=28 MB
67 1072: CHAR[ ] pos=-1 blev=0,btyp=B w=16 a+d=25+6 face=5
68 1088: CHAR[ ] pos=-1 blev=0,btyp=B w=16 a+d=25+6 face=5
69 1104: CHAR[ ] pos=-1 blev=0,btyp=B w=16 a+d=25+6 face=5
70 1120: CHAR[ ] pos=-1 blev=0,btyp=B w=16 a+d=25+6 face=5
71 1136: CHAR[ ] pos=-1 blev=0,btyp=B w=16 a+d=25+6 face=5
72 1152: CHAR[w] pos=9489 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
73 1168: CHAR[i] pos=9490 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
74 1184: CHAR[l] pos=9491 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
75 1200: CHAR[l] pos=9492 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
76 1216: CHAR[ ] pos=9493 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
77 1232: CHAR[b] pos=9494 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
78 1248: CHAR[e] pos=9495 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
79 1264: CHAR[ ] pos=9496 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
80 1280: CHAR[r] pos=9497 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
81 1296: CHAR[a] pos=9498 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
82 1312: CHAR[i] pos=9499 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
83 1328: CHAR[s] pos=9500 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
84 1344: CHAR[e] pos=9501 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
85 1360: CHAR[d] pos=9502 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
86 1376: CHAR[ ] pos=9503 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
87 1392: CHAR[w] pos=9504 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
88 1408: CHAR[h] pos=9505 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
89 1424: CHAR[e] pos=9506 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
90 1440: CHAR[n] pos=9507 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
91 1456: CHAR[ ] pos=9508 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
92 1472: CHAR[t] pos=9509 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
93 1488: CHAR[h] pos=9510 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
94 1504: CHAR[e] pos=9511 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
95 1520: CHAR[ ] pos=9512 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
96 1536: CHAR[h] pos=9513 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
97 1552: CHAR[o] pos=9514 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
98 1568: CHAR[s] pos=9515 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
99 1584: CHAR[t] pos=9516 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
100 1600: CHAR[n] pos=9517 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
101 1616: CHAR[a] pos=9518 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
102 1632: CHAR[m] pos=9519 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
103 1648: CHAR[e] pos=9520 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
104 1664: CHAR[ ] pos=9521 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
105 1680: CHAR[d] pos=9522 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
106 1696: CHAR[o] pos=9523 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
107 1712: CHAR[e] pos=9524 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
108 1728: CHAR[s] pos=9525 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
109 1744: CHAR[ ] pos=9526 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
110 1760: CHAR[n] pos=9527 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
111 1776: CHAR[o] pos=9528 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
112 1792: CHAR[t] pos=9529 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
113 1808: CHAR[ ] pos=9530 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
114 1824: CHAR[m] pos=9531 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
115 1840: CHAR[a] pos=9532 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
116 1856: CHAR[t] pos=9533 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
117 1872: CHAR[c] pos=9534 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
118 1888: CHAR[h] pos=9535 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
119 1904: CHAR[ ] pos=9536 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
120 1920: CHAR[t] pos=9537 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
121 1936: CHAR[h] pos=9538 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
122 1952: CHAR[e] pos=9539 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
123 1968: CHAR[ ] pos=9540 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
124 1984: CHAR[p] pos=9541 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
---Type <return> to continue, or q <return> to quit---
125 2000: CHAR[r] pos=9542 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
126 2016: CHAR[e] pos=9543 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
127 2032: CHAR[s] pos=9544 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
128 2048: CHAR[e] pos=9545 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
129 2064: CHAR[n] pos=9546 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
130 2080: CHAR[t] pos=9547 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
131 2096: CHAR[e] pos=9548 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
132 2112: CHAR[d] pos=9549 blev=0,btyp=L w=16 a+d=25+6 face=28 MB
133 2128: CHAR[ ] pos=0 blev=0,btyp=B w=16 a+d=25+6 face=28 MB
Hmm. Is it normal for the text on that line to be shown twice here?
The actual line is only 61 glyphs:
will be raised when the hostname does not match the presented
>
> Eventually, if nothing else gives a clue, please continue running
> Emacs under GDB, and if the crashes are always in
> compute_line_metrics, show the offending glyph_row each time it
> crashes. Perhaps the data will give some hint about what could be
> wrong. (Currently, the only idea I have is that somehow
> glyph_row->used[1] is set to a value larger than it should, which
> might mean some problem in maybe_produce_line_number, where it
> increments the used count, but I'd like first to see if all the
> problems manifest themselves with such a large used count.)
The crash is always in compute_line_metrics. I'll continue to run
under gdb, and see if I can find a recipe.
Regards
Robert
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t,
Robert Pluim <=
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/12
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Eli Zaretskii, 2017/07/13
- bug#27668: 26.0.50; Crash with display-line-numbers t, Robert Pluim, 2017/07/13