misc/88463: 'devfs rule add' before 'devfs ruleset' kills devfs.

trasz < trasz at pin.if.uz.zgora.pl
Thu Nov 3 10:20:16 PST 2005

>Number:         88463
>Category:       misc
>Synopsis:       'devfs rule add'  before 'devfs ruleset' kills devfs.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 03 18:20:14 GMT 2005
>Originator:     trasz
>Release:        6.0-rc1
FreeBSD traszkan.ds7 6.0-RC1 FreeBSD 6.0-RC1 #0: Sat Oct 29 21:42:46 CEST 2005     trasz at traszkan.ds7:/usr/obj/usr/src/sys/TRASHCAN  i386
doing 'devfs rule add <whatever>' before 'devfs ruleset <number>' makes
all the dev-related processes - and some ordinary ones like ps(1) - sleep
endlessly on 'devfs rule lock'.  clean reboot of the system is impossible
after that.

note that this occurs only if you don't have any ruleset enabled - that
is, no 'devfs_system_ruleset=something' in /etc/rc.conf.



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