Red Hat Bugzilla – Bug 120533
ifup starts multiple dhclient's
Last modified: 2014-03-16 22:44:04 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040312
Description of problem:
When ifup is ran multiple times, multiple copies of dhclient are
started. This is exacerbated by a DHCP server that takes a long time
to reply -- this means that the race condition window between ifup
doing a kill on the old dhclient, and the new dhclient writing out the
/var/run/pid file upon getting a lease, is quite large.
The attached patch uses /usr/bin/lockfile to do strict locking to
avoid the possibility of concurrently running dhclient processes
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Run /sbin/ifup eth0 &
2.Run /sbin/ifup eth0
3.Notice two dhclient's running that don't exit
Actual Results: As a result of having two dhclient processes running,
each process obtains a different DHCP lease and reconfigures the
interface according to _its_ lease periodically.
Sigh, forgot to close the browser window, and accidentally re-posted
the bug from Mozilla. Sorry. This is a duplicate is 120531.
*** This bug has been marked as a duplicate of 120531 ***
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.