DragonFlyBSD

Sepherosa Ziehau schrieb:

Hi all,

"shutdown now" does not work on HEAD. I don't know when it starts,
but it should be quite recent.

Symptom:

xanadu:~# shutdown now
Shutdown NOW!
shutdown: [pid 737]
xanadu:~#

• FINAL System shutdown message from root@xanadu ***
  System going down IMMEDIATELY

...
...
Enter full pathname of shell or RETURN for /bin/sh:

After the above line, "enter" does not work at all, and nothing could be input.
CTRL-ALT-DEL still works.

I tried this too yesterday and i had one more line after the "Enter full
pathname" line:

init: can't exec for single user: No such file or directory

This is coming from shutdown.

Sascha

: "shutdown now" does not work on HEAD. I don't know when it starts,
: but it should be quite recent.

I am git-bisect'ing it. I started before the libc merge, which translates to
~200 commits until HEAD. I'll need 7-8 buildworlds to track it down.

Cheers,
Stathis

:: "shutdown now" does not work on HEAD. I don't know when it starts,
:: but it should be quite recent.

:I am git-bisect'ing it. I started before the libc merge, which translates to
:~200 commits until HEAD. I'll need 7-8 buildworlds to track it down.

Hi.

The commit after 'shutdown now' has stopped working is
b8477cda8783596a7c765667658de9a94dd368fd
" Revoke reimplementation - primary commit part 1/2"

Any ideas on how to further debug it ? Breaking into ddb doesn't show much, just
that we are in scgetc(), a syscons function. Also, ktrace'ing init and then
invoking the command in discussion, produces this output:
http://leaf.dragonflybsd.org/~beket/ktrace.out.txt

Cheers,
Stathis

On Mon, Apr 27, 2009 at 10:43:27AM +0000, Stathis Kamperis (via DragonFly issue tracker) wrote:

Stathis Kamperis <ekamperi@gmail.com> added the comment:

:: "shutdown now" does not work on HEAD. I don't know when it starts,
:: but it should be quite recent.

:I am git-bisect'ing it. I started before the libc merge, which translates to
:~200 commits until HEAD. I'll need 7-8 buildworlds to track it down.

Hi.

The commit after 'shutdown now' has stopped working is
b8477cda8783596a7c765667658de9a94dd368fd
" Revoke reimplementation - primary commit part 1/2"

Any ideas on how to further debug it ? Breaking into ddb doesn't show much, just
that we are in scgetc(), a syscons function. Also, ktrace'ing init and then
invoking the command in discussion, produces this output:
http://leaf.dragonflybsd.org/~beket/ktrace.out.txt

Cheers,
Stathis

_____________________________________________
DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1344>
_____________________________________________

Any progress on this issue?

If I issue shutdown command from an ssh session, the console is usable.
If I switch to ttyv1(alt+F2), login as root, then issue `shutdown now',
the screen locks up but I can switch to ttyv0(alt+F1) and it accepts
the keystroke. An odd thing is that you can switch back to ttyv1 from
ttyv0 after going to single-user mode.

Hi all,

Any insights into this issue? I do hope it could be solved.

On Sat, May 9, 2009 at 4:53 PM, YONETANI Tomokazu <qhwt+dfly@les.ath.cx> wrote:

On Mon, Apr 27, 2009 at 10:43:27AM +0000, Stathis Kamperis (via DragonFly issue tracker) wrote:

Stathis Kamperis <ekamperi@gmail.com> added the comment:

:: "shutdown now" does not work on HEAD.  I don't know when it starts,
:: but it should be quite recent.

:I am git-bisect'ing it. I started before the libc merge, which translates to
:~200 commits until HEAD. I'll need 7-8 buildworlds to track it down.

Hi.

The commit after 'shutdown now' has stopped working is
b8477cda8783596a7c765667658de9a94dd368fd
" Revoke reimplementation - primary commit part 1/2"

Any ideas on how to further debug it ? Breaking into ddb doesn't show much, just
that we are in scgetc(), a syscons function. Also, ktrace'ing init and then
invoking the command in discussion, produces this output:
http://leaf.dragonflybsd.org/~beket/ktrace.out.txt

Cheers,
Stathis

_____________________________________________
DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1344>
_____________________________________________

Any progress on this issue?

If I issue shutdown command from an ssh session, the console is usable.
If I switch to ttyv1(alt+F2), login as root, then issue `shutdown now',
the screen locks up but I can switch to ttyv0(alt+F1) and it accepts
the keystroke.  An odd thing is that you can switch back to ttyv1 from
ttyv0 after going to single-user mode.

On Wed, Jun 03, 2009 at 09:32:35PM +0800, Sepherosa Ziehau wrote:

Hi all,

Any insights into this issue? I do hope it could be solved.

I think I found something (not the fix, tho). From revoke(9) man page:

DESCRIPTION
       The revoke() function invalidates all current open file descriptors in
       the system for the file named by path.  Subsequent operations on any such
       descriptors fail, with the exceptions that a read() from a character
       device file which has been revoked returns a count of zero (end of file),
       and a close() call will succeed.

This is true on my 2.2-RELEASE box, but not on -DEVELOPMENT. Below is a
code snippet to demonstrate this difference.

%%%%%%
$ cat > a.c
#include <errno.h>
#include <stdio.h>
#include <syslog.h>
#include <unistd.h>

int
  main()
{
      char buf[10];

syslog(LOG_ALERT, "TEST");
      if (revoke(ttyname(STDIN_FILENO)) != 0)
          perror("revoke");

size_t got = read(STDIN_FILENO, buf, 1);
      syslog(LOG_ALERT, "got:%d, errno:%d\n", got, errno);
      return 0;
  }

$ gcc -W -Wall a.c && ./a.out
%%%%%%

On 2.2-RELEASE, it logs `a.out: got:0, errno:0' to /var/log/messages
while it logs `a.out: got:-1, errno:9' on -DEVELOPMENT. This may or
may not affect init(8) or programs invoked from it.

On Sat, May 9, 2009 at 4:53 PM, YONETANI Tomokazu <qhwt+dfly@les.ath.cx> wrote:

On Mon, Apr 27, 2009 at 10:43:27AM +0000, Stathis Kamperis (via DragonFly issue tracker) wrote:

Stathis Kamperis <ekamperi@gmail.com> added the comment:

:: "shutdown now" does not work on HEAD. 〓I don't know when it starts,
:: but it should be quite recent.

:I am git-bisect'ing it. I started before the libc merge, which translates to
:~200 commits until HEAD. I'll need 7-8 buildworlds to track it down.

Hi.

The commit after 'shutdown now' has stopped working is
b8477cda8783596a7c765667658de9a94dd368fd
" Revoke reimplementation - primary commit part 1/2"

Any ideas on how to further debug it ? Breaking into ddb doesn't show much, just
that we are in scgetc(), a syscons function. Also, ktrace'ing init and then
invoking the command in discussion, produces this output:
http://leaf.dragonflybsd.org/~beket/ktrace.out.txt

Cheers,
Stathis

_____________________________________________
DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1344>
_____________________________________________

Any progress on this issue?

If I issue shutdown command from an ssh session, the console is usable.
If I switch to ttyv1(alt+F2), login as root, then issue `shutdown now',
the screen locks up but I can switch to ttyv0(alt+F1) and it accepts
the keystroke. 〓An odd thing is that you can switch back to ttyv1 from
ttyv0 after going to single-user mode.

--
Live Free or Die

Fixed by dillon@:
a32446b7b42983c7cb48c360d105496b4a3596c3