Bugs item #303084, was changed at 2006-02-19 22:54 by Steven McDonald You can respond by visiting: https://alioth.debian.org/tracker/?func=detail&atid=411594&aid=303084&group_id=30628
Status: Open Priority: 3 Submitted By: Nobody (None) Assigned to: Nobody (None) Summary: visudo problems Category: None Group: None Resolution: None Initial Comment: visudo says the sudoers file is busy, even if the machine had a fresh reboot. ---------------------------------------------------------------------- Comment By: Steven McDonald (steven-guest) Date: 2012-01-08 18:08 Message: Justus's fix to configure.in works for me, and I also see the segfault he mentioned if I run visudo as root (though not if I run 'sudo visudo' as a normal user). I can't seem to attach a file to this bug, but here's a backtrace from gdb (with sudo rebuilt without dh_strip, and libc0.3-dbg installed): http://ftp.steven-mcdonald.id.au/visudo_backtrace.txt Despite the segfault, /etc/sudoers does get updated, which makes me curious as to why it's reaching this line of code at all -- reading visudo.c, this code seems to be part of the error handling for a failure to move the new sudoers file into place. I'll report back later once I've dug a little deeper, just thought the backtrace might be helpful to others. I intend to file a bug in the Debian BTS on the sudo package once I have a working fix. ---------------------------------------------------------------------- Comment By: Justus Winter (teythoon-guest) Date: 2010-05-07 04:35 Message: Uh, I would attach that patch as a file to this bug, but it looks like I am too stupid to figure out how... the patch is mostly intact at the page source, looks like tabs are replaced by spaces and the quotes are xmlized... ---------------------------------------------------------------------- Comment By: Justus Winter (teythoon-guest) Date: 2010-05-07 04:29 Message: Yeah, lockf isn't implemented, but flock is and visudo can use either. They select the locking mechanism based on the target platform, here's a patch for configure.in: ~~~ snip ~~~ diff -r 91d8979bd32f configure.in --- a/configure.in Thu May 06 19:39:12 2010 +0200 +++ b/configure.in Thu May 06 19:40:22 2010 +0200 @@ -1706,6 +1706,9 @@ ;; *-gnu*) OSDEFS="${OSDEFS} -D_GNU_SOURCE" + # lockf() isn't implemented on the hurd -- use flock instead + ac_cv_func_lockf=no + ac_cv_func_flock=yes ;; esac ~~~ snip ~~~ With that patch I am able to visudo the sudoers file, but it segfaults when the editor exits. I can't debug this any further atm since gdb is broken on my debian installations... ---------------------------------------------------------------------- Comment By: Samuel Thibault (sthibault) Date: 2010-03-02 22:19 Message: IIRC the problem is that visudo uses record locking, which is not yet supported on GNU/Hurd. ---------------------------------------------------------------------- You can respond by visiting: https://alioth.debian.org/tracker/?func=detail&atid=411594&aid=303084&group_id=30628 -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
