Re: abortion when doing i x twice

[Benno Schulenberg]

On Mon, May 15, 2017, at 18:39, Gavin Smith wrote:
> On Mon, May 15, 2017 at 10:55:18AM +0200, Benno Schulenberg wrote:
> > To reproduce:
> > 
> > MALLOC_CHECK_=2  info/ginfo doc/info-stnd.info
> > 
> > Then type:  i  x  <Enter>  i  x  <Enter>
> > 
> > Aborted.
> 
> I could find nothing wrong here at all.  Do you have valgrind installed?
> Maybe try running
> 
> alias VAL='valgrind --log-file=val.log'
> VAL  info/ginfo doc/info-stnd.info

==5362== Invalid write of size 1
==5362==    at 0x4026107: strcpy (mc_replace_strmem.c:311)
==5362==    by 0x805751D: replace_in_documentation (infodoc.c:816)
==5362==    by 0x805068E: report_index_match (indices.c:437)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==    by 0x8055E25: main (info.c:1079)
==5362==  Address 0x4b652cf is 0 bytes after a block of size 71 alloc'd
==5362==    at 0x4024F20: malloc (vg_replace_malloc.c:236)
==5362==    by 0x806CA84: xmalloc (xmalloc.c:41)
==5362==    by 0x8056F5B: replace_in_documentation (infodoc.c:663)
==5362==    by 0x805068E: report_index_match (indices.c:437)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==    by 0x8055E25: main (info.c:1079)
==5362== 
==5362== Invalid read of size 1
==5362==    at 0x402752F: strchrnul (mc_replace_strmem.c:711)
==5362==    by 0x40BCA3C: vfprintf (printf-parse.h:99)
==5362==    by 0x40DFF5F: vsnprintf (vsnprintf.c:120)
==5362==    by 0x8053D56: text_buffer_vprintf (info-utils.c:1896)
==5362==    by 0x806B3CE: build_message_node (window.c:1063)
==5362==    by 0x806B242: vwindow_message_in_echo_area (window.c:998)
==5362==    by 0x806B28B: window_message_in_echo_area (window.c:1013)
==5362==    by 0x80506AA: report_index_match (indices.c:441)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==  Address 0x4b652cf is 0 bytes after a block of size 71 alloc'd
==5362==    at 0x4024F20: malloc (vg_replace_malloc.c:236)
==5362==    by 0x806CA84: xmalloc (xmalloc.c:41)
==5362==    by 0x8056F5B: replace_in_documentation (infodoc.c:663)
==5362==    by 0x805068E: report_index_match (indices.c:437)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==    by 0x8055E25: main (info.c:1079)
==5362== 
==5362== Invalid read of size 1
==5362==    at 0x40BCABF: vfprintf (vfprintf.c:1655)
==5362==    by 0x40DFF5F: vsnprintf (vsnprintf.c:120)
==5362==    by 0x8053D56: text_buffer_vprintf (info-utils.c:1896)
==5362==    by 0x806B3CE: build_message_node (window.c:1063)
==5362==    by 0x806B242: vwindow_message_in_echo_area (window.c:998)
==5362==    by 0x806B28B: window_message_in_echo_area (window.c:1013)
==5362==    by 0x80506AA: report_index_match (indices.c:441)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==    by 0x8055E25: main (info.c:1079)
==5362==  Address 0x4b652cf is 0 bytes after a block of size 71 alloc'd
==5362==    at 0x4024F20: malloc (vg_replace_malloc.c:236)
==5362==    by 0x806CA84: xmalloc (xmalloc.c:41)
==5362==    by 0x8056F5B: replace_in_documentation (infodoc.c:663)
==5362==    by 0x805068E: report_index_match (indices.c:437)
==5362==    by 0x8050793: info_next_index_match (indices.c:485)
==5362==    by 0x8050162: info_index_search (indices.c:264)
==5362==    by 0x805EAA5: info_read_and_dispatch (session.c:253)
==5362==    by 0x805EA01: info_session (session.c:221)
==5362==    by 0x8055E25: main (info.c:1079)

This is on an old Atom, a 32-bit machine.

Benno

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