gives this often: * Regenerating GNU info directory index... * Processed 268 info files; 1 errors. sh: line 1: 12545 Segmentation fault LANG=C LANGUAGE=C /usr/bin/install-info --dir-file=/usr/share/info/dir /usr/share/info/x-symbol.info.bz2 line 1 of what :[ ?
You can check the output of dmesg to see which program is generating the 'Segmentation fault'. Maybe you can just rebuild that program.
(In reply to comment #1) > You can check the output of dmesg to see which program is generating the > 'Segmentation fault'. Maybe you can just rebuild that program. OK, right: it is /usr/bin/install-info with arguments "--dir-file=/usr/share/info/dir /usr/share/info/x-symbol.info.bz2" This the log: May 6 11:35:39 localhost install-info[17920]: segfault at 0 ip b7ffe14b sp bf8f2170 error 4 in libc-2.7.so[b7f92000+128000] Apparently, there is a string in "x-symbol" which does not contain the '.' (dot) character. install-info.c:1545 calls `split_entry'; install-info.c:1453 calls `strchr' for '.' and does not find it; ptr == 0; still `entry' is "* X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other \"token languages\"\n", so its length is not zero; "install-info.c" gets pass the 1459 line number. So that `strdup' gets a NULL pointer to duplicate. Here is what gdb looks like (for those arguments above): (gdb) p entry->text $4 = 0x806be28 "* X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other \"token languages\"\n" (gdb) p name $5 = 0x0 (gdb) do #1 0x0804b3fd in split_entry ( entry=0x806be28 "* X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other \"token languages\"\n", name=0xbff096d4, name_len=0xbff096cc, description=0xbff096d0, description_len=0xbff096c8) at install-info.c:1460 1460 *name = strdup (ptr); (gdb) p entry $6 = 0x806be28 "* X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other \"token languages\"\n" (gdb) p entry $7 = 0x806be28 "* X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other \"token languages\"\n" (gdb) p ptr $8 = 0x0 (gdb) do #9 0xb7f1514b in strdup () from /lib/libc.so.6 (gdb) do Bottom (innermost) frame selected; you cannot go down. There are two places in x-symbol.texi where that string occurs: one is @direntry * X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other "token languages" @end direntry and @smallexample * X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other "token languages" @end smallexample what is texinfo's behaviour on these?
Bug https://bugs.gentoo.org/show_bug.cgi?id=199220 causing it fixed.
OK, so summarising, texinfo has a problem with a file that some package outside the official tree, namely app-emacs/x-symbol of bug #199220, is causing. Then some new ebuild attachment to said bug apparently fixes the problem. *** This bug has been marked as a duplicate of bug 199220 ***
texinfo should not segfault regardless of the crappy input handed to it i'm not an info or emacs guy, so can someone please post a file and an example of how to crash texinfo with it
(In reply to comment #5) > can someone please post a file and an example > of how to crash texinfo with it This is an excerpt from x-symbol-4.51-src/man/x-symbol.texi: <<< @dircategory Editors @direntry * X-Symbol:: Semi WYSIWYG for LaTeX, HTML and other "token languages" @end direntry >>> You can see it is tolerant with ending dot; more or less about it: http://www.gnu.org/software/texinfo/manual/texinfo/html_node/Installing-Dir-Entries.html#Installing-Dir-Entries And here is the buggy code from texinfo-4.12/install-info/install-info.c#1444: <<< /* Extract the NAME and DESCRIPTION from ENTRY. NAME and DESCRIPTION must be free'd. */ static void split_entry (char *entry, char **name, size_t *name_len, char **description, size_t *description_len) { char *endptr; /* on the first line, the description starts after the first period. */ char *ptr = strchr (entry, '.'); /* Maybe there's no period, and no description */ if (!ptr) { size_t length = strlen (entry); if (length == 0) return; *name = strdup (ptr); *name_len = length + 1; return; } >>> My guess the line 1460 should be: >>> *name = strdup (entry); <<< since passing over to lines #1465-#1469: >>> /* The name is everything up to and including the period. */ *name_len = (size_t) (ptr - entry + 1); *name = xmalloc (*name_len + 1); (*name)[0] = '\0'; strncat (*name, entry, *name_len); <<< especially in line #1469, `name' is copied from `entry' also.
Not the same symptoms, but this is a duplicate of bug 220695. (In reply to comment #6) > My guess the line 1460 should be: > >>> > *name = strdup (entry); > <<< This is fixed in CVS upstream: <http://cvs.savannah.gnu.org/viewvc/texinfo/texinfo/install-info/install-info.c?r1=1.10&r2=1.11> *** This bug has been marked as a duplicate of bug 220695 ***
