Date: Wed, 13 Jun 2001 10:19:51 +0300 (EEST) From: netch@netch.kiev.ua (Valentin Nechayev) To: FreeBSD-gnats-submit@freebsd.org Subject: bin/28116: init: allow reboot during runcom Message-ID: <200106130719.f5D7Jpr00636@iv.nn.kiev.ua>
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>Number: 28116
>Category: bin
>Synopsis: init: allow reboot during runcom
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: change-request
>Submitter-Id: current-users
>Arrival-Date: Wed Jun 13 00:30:11 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Valentin Nechayev
>Release: FreeBSD 4.3-STABLE i386
>Organization:
private
>Environment:
FreeBSD 4.3-STABLE i386
>Description:
/sbin/init does not react on Ctrl-Alt-Del in "runcom" state (during running
/etc/rc). If boot process hangs (even some fresh FreeBSD ports caused
hanging due to bugs in startup scripts), there often is no possibility to
interrupt it correctly (without reset button).
>How-To-Repeat:
>Fix:
In runcom(), init does not check for transitions requested from signal
handlers before /etc/rc finished. Modify it to check for `death'.
Patch to RELENG_4 (but also applicable cleanly to HEAD):
--- /usr/src/sbin/init/init.c.orig Sat May 26 21:48:37 2001
+++ /usr/src/sbin/init/init.c Wed Jun 13 09:44:00 2001
@@ -798,10 +798,13 @@
/*
* Copied from single_user(). This is a bit paranoid.
*/
+ requested_transition = 0;
do {
if ((wpid = waitpid(-1, &status, WUNTRACED)) != -1)
collect_child(wpid);
if (wpid == -1) {
+ if (requested_transition == death)
+ return death;
if (errno == EINTR)
continue;
warning("wait for %s on %s failed: %m; going to single user mode",
>Release-Note:
>Audit-Trail:
>Unformatted:
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