Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 106 by [email protected]: Vim-7.3.782 crashed (core dump)
http://code.google.com/p/vim/issues/detail?id=106
Vim-7.3.782 (huge, gtk2) crashed (core dump) on Linux-x86_64. I think I
was using the netrw plugin when it crashes, but I can't remember exactly
what I did.
(gdb) bt
#0 0x00007f2b0191e707 in kill () at ../sysdeps/unix/syscall-template.S:82
#1 0x0000000000527555 in may_core_dump () at os_unix.c:3166
#2 0x00000000005274f4 in mch_exit (r=1) at os_unix.c:3132
#3 0x00000000005dd6de in getout (exitval=1) at main.c:1481
#4 0x00000000004e2f6d in preserve_exit () at misc1.c:9138
#5 0x000000000052530c in deathtrap (sigarg=11) at os_unix.c:1097
#6 <signal handler called>
#7 0x00000000005048b4 in nv_gomark (cap=0x7fffb59fe8e0) at normal.c:7555
#8 0x00000000004f949b in normal_cmd (oap=0x7fffb59fe9c0, toplevel=1) at
normal.c:1198
#9 0x00000000005dd3cd in main_loop (cmdwin=0, noexmode=0) at main.c:1306
#10 0x00000000005dcd97 in main (argc=1, argv=0x7fffb59fece8) at main.c:1010
(gdb) up
#7 0x00000000005048b4 in nv_gomark (cap=0x7fffb59fe8e0) at normal.c:7555
(gdb) list
7550 if (!virtual_active())
7551 curwin->w_cursor.coladd = 0;
7552 #endif
7553 #ifdef FEAT_FOLDING
7554 if (cap->oap->op_type == OP_NOP
7555 && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
7556 && (fdo_flags & FDO_MARK)
7557 && old_KeyTyped)
7558 foldOpenCursor();
7559 #endif
(gdb) p pos
$2 = (pos_T *) 0x0
It crashed at line normal.c:7555 when dereferencing pos which is NULL.
"hg annotate normal.c" shows that line normal.c:7555 was changed
in revision 4017 (i.e v7-3-763):
vimboss 7: #ifdef FEAT_FOLDING
vimboss 7: if (cap->oap->op_type == OP_NOP
bram 4017: && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
vimboss 7: && (fdo_flags & FDO_MARK)
vimboss 7: && old_KeyTyped)
vimboss 7: foldOpenCursor();
vimboss 7: #endif
The line normal.c:7555 was changed in this recent patch:
============================================================
changeset: 4017:b6148e4a9c39
tag: v7-3-763
user: Bram Moolenaar <[email protected]>
date: Thu Jan 17 13:24:08 2013 +0100
files: src/normal.c src/version.c
description:
updated for version 7.3.763
Problem: Jumping to a mark does not open a fold if it is in the same
line.
(Wiktor Ruben)
Solution: Also compare the column after the jump. (Christian Brabandt)
============================================================
I can see that line normal.c:7535 in the same function is checking
whether 'pos' is NULL a few lines above at normal.c:7535, but not
at line normal.c:7555, so that looks wrong.
I don't know yet how to reproduce the bug unfortunately.
What version of the product are you using? On what operating system?
Vim-7.3.782 (huge, gtk2), Linux x86_64.
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