Hi
When building Vim-7.3.353 (huge) with -DEXITFREE, I see
that free memory is used when when quiting Vim:
==17154== Invalid read of size 4
==17154== at 0x8059057: buf_freeall (buffer.c:570)
==17154== by 0x8059A77: close_buffer (buffer.c:418)
==17154== by 0x8108492: free_all_mem (misc2.c:1176)
==17154== by 0x813E03C: mch_exit (os_unix.c:3138)
==17154== by 0x80A6270: ex_quit (ex_docmd.c:6458)
==17154== by 0x80AEB26: do_one_cmd (ex_docmd.c:2668)
==17154== by 0x80AD047: do_cmdline (ex_docmd.c:1122)
==17154== by 0x811EE0E: nv_colon (normal.c:5378)
==17154== by 0x8120DF3: normal_cmd (normal.c:1193)
==17154== by 0x81D0C16: main_loop (main.c:1263)
==17154== by 0x81D405A: main (main.c:964)
==17154== Address 0x4e08270 is 0 bytes inside a block of size 3,764 free'd
==17154== at 0x4024E4A: free (vg_replace_malloc.c:366)
==17154== by 0x81AF328: win_free (window.c:4456)
==17154== by 0x81AF3DE: win_free_mem (window.c:2388)
==17154== by 0x81AF468: win_free_all (window.c:2418)
==17154== by 0x810845E: free_all_mem (misc2.c:1165)
==17154== by 0x813E03C: mch_exit (os_unix.c:3138)
==17154== by 0x80A6270: ex_quit (ex_docmd.c:6458)
==17154== by 0x80AEB26: do_one_cmd (ex_docmd.c:2668)
==17154== by 0x80AD047: do_cmdline (ex_docmd.c:1122)
==17154== by 0x811EE0E: nv_colon (normal.c:5378)
==17154== by 0x8120DF3: normal_cmd (normal.c:1193)
==17154== by 0x81D0C16: main_loop (main.c:1263)
==17154== by 0x81D405A: main (main.c:964)
(more errors after that)
It can be reproduced with:
$ valgrind vim -u NONE -c q
Doing a bisection, I see that bug was introduced in Vim-7.3.306.
Attached patch fixes it.
Regards
-- Dominique
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diff -r 379a6398d462 src/buffer.c
--- a/src/buffer.c Wed Oct 26 23:48:21 2011 +0200
+++ b/src/buffer.c Sat Nov 19 20:21:25 2011 +0100
@@ -567,7 +567,7 @@
diff_buf_delete(buf); /* Can't use 'diff' for unloaded buffer. */
#endif
#ifdef FEAT_SYN_HL
- if (curwin->w_buffer == buf)
+ if (firstwin != NULL && curwin->w_buffer == buf)
reset_synblock(curwin); /* remove any ownsyntax */
#endif
