Package: emacs;
Reported by: Po Lu <luangruo <at> yahoo.com>
Date: Sun, 12 Dec 2021 05:16:01 UTC
Severity: normal
Found in version 28.0.90
Done: Po Lu <luangruo <at> yahoo.com>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Eli Zaretskii <eliz <at> gnu.org> To: Po Lu <luangruo <at> yahoo.com> Cc: 52446 <at> debbugs.gnu.org Subject: bug#52446: 28.0.90; Infinite loop in add_row_entry Date: Sun, 12 Dec 2021 12:10:57 +0200
> From: Po Lu <luangruo <at> yahoo.com> > Cc: 52446 <at> debbugs.gnu.org > Date: Sun, 12 Dec 2021 17:51:05 +0800 > > Eli Zaretskii <eliz <at> gnu.org> writes: > > > At which point in the code did you print those? > > Inside the infinite loop. And if you go over the row_table[] array, how many such entries doi you see there? And what is the value of row_table_size? > RIGHT: 54 glyphs > 0 0: CHAR[0x0] pos=-734003200 blev=0,btyp=UNDEF w=0 a+d=9216+-18611 > 1 0: CHAR[0xec000000] pos=0 blev=0,btyp=UNDEF w=0 a+d=-7424+909 face=119 vof=1 > 2 0: CHAR[0x2500007f] pos=452984959 blev=0,btyp=UNDEF w=0 a+d=0+0 > 3 0: CHAR[0x0] pos=-318766977 blev=0,btyp=UNDEF w=0 a+d=8704+0 face=1 > 4 0: pos=-1392508928 w=127 a+d=1280+-16534 face=828327 vof=-20 MB OVL [ ] > 5 127: CHAR[0x0] pos=805306368 blev=0,btyp=UNDEF w=0 a+d=0+0 > 6 127: CHAR[0x30000000] pos=805306368 blev=0,btyp=UNDEF w=0 a+d=0+0 > 7 127: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=12288+0 > 8 127: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 > 9 127: CHAR[0x0] pos=33554432 blev=0,btyp=UNDEF w=0 a+d=512+0 > 10 127: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=12288+0 > 11 127: CHAR[0x30000000] pos=2063597568 blev=0,btyp=UNDEF w=127 a+d=0+0 > 12 254: CHAR[0x1000000] pos=0 blev=0,btyp=UNDEF w=0 a+d=-4096+743 vof=1 > 13 254: CHAR[0x1000000] pos=16777216 blev=0,btyp=UNDEF w=0 a+d=256+0 > 14 254: CHAR[0x0] pos=16777216 blev=0,btyp=UNDEF w=0 a+d=0+0 > 15 254: CHAR[0x1000000] pos=0 blev=0,btyp=UNDEF w=0 a+d=-26624+11687 vof=1 > 16 254: CHAR[0x0] pos=16777216 blev=0,btyp=UNDEF w=0 a+d=256+0 > 17 254: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 > 18 254: pos=0 w=-1 a+d=-1+-1 vof=-1 MB PAD N/A OVL AVOID [ ] > 19 253: CHAR[0x0] pos=16777216 blev=0,btyp=UNDEF w=0 a+d=0+0 > 20 253: CHAR[0x74000000] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 face=655360 > 21 253: CHAR[0x80000000] pos=-1929379713 blev=0,btyp=UNDEF w=0 a+d=0+16 face=91794 vof=1 > 22 253: pos=0 w=0 a+d=-16384+-5898 face=655360 vof=-21 MB OVL [ ] > 23 253: CHAR[0xf000007f] pos=1560281088 blev=0,btyp=UNDEF w=0 a+d=-19712+-19263 > 24 253: pos=33554432 w=0 a+d=-16384+-6069 face=655360 vof=-21 MB OVL [ ] > 25 253: CHAR[0x90000000] pos=-1258291200 blev=0,btyp=UNDEF w=0 a+d=8960+-19263 > 26 253: CHAR[0xa400000] pos=-1543503872 blev=0,btyp=UNDEF w=0 a+d=-16384+-17738 face=47798 > 27 253: CHAR[0xa0000000] pos=-1006632960 blev=0,btyp=UNDEF w=0 a+d=9728+0 face=46272 > 28 253: CHAR[0x5000000] pos=-1879048192 blev=0,btyp=UNDEF w=0 a+d=16384+-17736 face=47735 > 29 253: CHAR[0x5000000] pos=171966464 blev=0,btyp=UNDEF w=0 a+d=32000+11690 vof=1 > 30 253: CHAR[0x6000000] pos=171966464 blev=0,btyp=UNDEF w=0 a+d=9472+26277 vof=1 > 31 253: CHAR[0xc0000000] pos=-268435456 blev=0,btyp=UNDEF w=127 a+d=0+0 > 32 380: CHAR[0xd0000000] pos=33554559 blev=0,btyp=UNDEF w=0 a+d=12288+0 > 33 380: CHAR[0xd0000000] pos=-805306368 blev=0,btyp=UNDEF w=0 a+d=-12288+245 face=245 > 34 380: CHAR[0xd0000000] pos=-805306368 blev=0,btyp=UNDEF w=0 a+d=-12288+245 face=245 > 35 380: pos=-805306368 w=0 a+d=15104+-25445 face=245 vof=-20 MB OVL [ ] > 36 380: CHAR[0x0] pos=805306368 blev=0,btyp=UNDEF w=0 a+d=8448+0 face=724146 > 37 380: CHAR[0x18000000] pos=553648128 blev=0,btyp=UNDEF w=-7102 a+d=22749+0 > 38 -6722: CHAR[0x6f00006d] pos=0 blev=0,btyp=UNDEF w=0 a+d=8448+0 face=221549 > 39 -6722: CHAR[0x2f000000] pos=553648243 blev=0,btyp=UNDEF w=25645 a+d=31073+0 > 40 18923: pos=1918986355 w=29801 a+d=97+28528 face=156265 vof=27693 N/A OVL AVOID [ ] > 41 48724: IMAGE[1] slice=8706,50290,47091,5475 pos=358856691 w=1 a+d=0+8706 face=1 vof=-15246 PAD N/A OVL AVOID [ ] > 42 48725: IMAGE[0] slice=0,24832,0,0 pos=358856691 w=1 a+d=0+8706 face=1 vof=-15246 PAD N/A OVL AVOID [ ] > 43 48726: pos=-1811939201 w=0 a+d=0+25024 face=78033 vof=-36 MB OVL [ ] > 44 48726: CHAR[0xc0000000] pos=127 blev=0,btyp=UNDEF w=0 a+d=0+0 > 45 48726: CHAR[0x0] pos=1073741824 blev=0,btyp=UNDEF w=0 a+d=0+11868 face=77407 vof=1 > 46 48726: CHAR[0xfd000000] pos=-251658240 blev=0,btyp=UNDEF w=0 a+d=0+0 face=58281 > 47 48726: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 > 48 48726: CHAR[0x0] pos=16777216 blev=0,btyp=UNDEF w=0 a+d=0+0 > 49 48726: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 > 50 48726: CHAR[0x0] pos=0 blev=0,btyp=UNDEF w=0 a+d=0+0 > 51 48726: CHAR[0x21000000] pos=553648128 blev=0,btyp=UNDEF w=0 a+d=0+0 face=50249 > 52 48726: CHAR[0x40000000] pos=1023422208 blev=0,btyp=UNDEF w=0 a+d=16640+0 face=42283 > 53 48726: CHAR[0x1000000] pos=1073741824 blev=0,btyp=UNDEF w=0 a+d=0+0 face=69034 vof=1536 > > Does this make sense? I think it's starting to smell like a memory > problem of sorts. This glyph row is clearly garbage. So yes, the question is how did that got into the table.
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