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bug#17322: 24.3.90; emacs crash at eassert (verify_row_hash (a)) in disp
From: |
Nicolas Richard |
Subject: |
bug#17322: 24.3.90; emacs crash at eassert (verify_row_hash (a)) in dispnew.c:1169 |
Date: |
Wed, 23 Apr 2014 16:54:27 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.1.1 |
Le 23/04/2014 16:43, Eli Zaretskii a écrit :
>> From: Nicolas Richard <theonewiththeevillook@yahoo.fr>
>> Breakpoint 1, terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at
>> emacs.c:351
>> 351 signal (sig, SIG_DFL);
>> #0 terminate_due_to_signal (sig=6, backtrace_limit=2147483647) at
>> emacs.c:351
>> #1 0x081f5927 in die (msg=0x82d5798 "verify_row_hash (a)", file=0x82d5608
>> "dispnew.c", line=1169) at alloc.c:6826
>> #2 0x08059979 in row_equal_p (a=0xa25151c, b=0xb2a0afc, mouse_face_p=true)
>> at dispnew.c:1169
>> #3 0x0805ef01 in scrolling_window (w=0xa7ee2f0, header_line_p=false) at
>> dispnew.c:4129
>
> There's a slim chance that output from the following GDB commands will
> give some hint:
>
> (gdb) frame 2
> (gdb) pgrowx a
> (gdb) pgrowx b
(gdb) frame 2
#2 0x08059979 in row_equal_p (a=0xa25151c, b=0xb2a0afc, mouse_face_p=true) at
dispnew.c:1169
1169 eassert (verify_row_hash (a));
(gdb) pgrowx a
TEXT: 19 glyphs
0 0: CHAR[7] pos=993 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
1 9: CHAR[1] pos=994 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
2 18: CHAR[0] pos=995 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
3 27: CHAR[e] pos=996 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
4 36: CHAR[e] pos=997 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
5 45: CHAR[8] pos=998 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
6 54: CHAR[7] pos=999 blev=0,btyp=L w=9 a+d=14+5 face=36 MB
7 63: CHAR[ ] pos=1000 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
8 72: CHAR[*] pos=1001 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
9 81: CHAR[ ] pos=1002 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
10 90: CHAR[c] pos=1003 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
11 99: CHAR[ ] pos=1004 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
12 108: CHAR[o] pos=1005 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
13 117: CHAR[ ] pos=1006 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
14 126: CHAR[l] pos=1007 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
15 135: CHAR[d] pos=1008 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
16 144: CHAR[l] pos=1009 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
17 153: CHAR[c] pos=1010 blev=0,btyp=L w=9 a+d=14+5 face=26 MB
18 162: CHAR[ ] pos=0 blev=0,btyp=B w=9 a+d=14+5 face=26 MB
RIGHT: 1 glyphs
0 171: COMP[0 (32776..21)] pos=-1 w=1012 a+d=0+-9539 face=5 vof=2388 MB
slice=32776,0,21,0
(gdb) pgrowx b
TEXT: 19 glyphs
0 0: CHAR[7] pos=993 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
1 9: CHAR[1] pos=994 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
2 18: CHAR[0] pos=995 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
3 27: CHAR[e] pos=996 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
4 36: CHAR[e] pos=997 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
5 45: CHAR[8] pos=998 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
6 54: CHAR[7] pos=999 blev=0,btyp=L w=9 a+d=14+5 face=21 MB
7 63: CHAR[ ] pos=1000 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
8 72: CHAR[*] pos=1001 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
9 81: CHAR[ ] pos=1002 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
10 90: CHAR[c] pos=1003 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
11 99: CHAR[ ] pos=1004 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
12 108: CHAR[o] pos=1005 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
13 117: CHAR[ ] pos=1006 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
14 126: CHAR[l] pos=1007 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
15 135: CHAR[d] pos=1008 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
16 144: CHAR[l] pos=1009 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
17 153: CHAR[c] pos=1010 blev=0,btyp=L w=9 a+d=14+5 face=11 MB
18 162: CHAR[ ] pos=0 blev=0,btyp=B w=9 a+d=14+5 MB
(gdb)
fwiw, the chars in the brackets above correspond to a git abbreviated sha1 and
a commit message as displayed e.g. in magit log buffers.
>> #3 0x0805ef01 in scrolling_window (w=0xa7ee2f0, header_line_p=false) at
>> dispnew.c:4129
>> desired_matrix = 0x96873a0
>> current_matrix = 0xb453fb0
>> yb = 967
>> i = 32
>> j = 32
>> first_old = 30
>> first_new = 30
>> last_old = 50
>> last_new = 50
>
> Do you really have 50 lines in your windows?
I apparently do, at least in my current session (the 51st can be seen but the
buffer text scrolls up when cursor reaches it).
--
Nico.