Your message dated Tue, 19 Nov 2024 18:40:54 +0000
with message-id <[email protected]>
and subject line Bug#1086877: Removed package(s) from unstable
has caused the Debian Bug report #718281,
regarding race condition on execution of /etc/ifplugd/ifplug.action script and
exit
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
718281: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=718281
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: ifplugd
Version: 0.28-19
Severity: important
after some exhaustive testing on a slow system (AMD Geode LX)
where additional scripts (written in python) were added into
/etc/ifplugd/action.d it was observed that the "down" script
only ran approximately 20% of the time.
inspection of the source code and log files (see relevant section below)
as ifplugd is to be used to detect one mission-critical interface
and bring up another, the fact that ifplugd cannot reliably run the
interface-down script is a serious problem.
options (from /etc/default/ifplugd) as follows (note -M):
INTERFACES="eth0"
HOTPLUG_INTERFACES="eth1 ppp0 ppp1"
ARGS="-q -u0 -f -d0 -w -M"
SUSPEND_ACTION="stop"
without -M, ifplugd goes straight to Exiting on ifdown ppp1:
action script is not run.
i.e. the configuration "without -M" is undesirable (ineffective)
as notifications of interfaces going down will never be generated.
with -M, ifplugd continues to live for a short duration. examining
/lib/udev/ifplugd.agent it appears that de-registration of the
net interface ppp1 with udev causes udev to attempt to kill ifplugd
(line 89 of /lib/udev/ifplugd.agent). this is ALSO undesirable
behaviour.
to stop this undesirable behaviour it would make sense to use
INTERFACES= instead of HOTPLUG_INTERFACES= in order to terminate
udev from killing the ifplugd instance.
but, it is impossible to use INTERFACES="ppp1" because the ppp1 interface
is an emergency interface: it's not up at the time that ifplugd is
started (/etc/init.d/ifplugd), and /etc/init.d/ifplugd EXPLICITLY
bans monitoring of interfaces that happen not to be in /sys/class/net
at the EXACT moment that ifplugd is started
all in all, it would appear that ifplugd's configuration basically hasn't
really been properly thought through, nor is it really suited to being
simply "killed off" at random, as it could be in the middle of mission-critical
tasks at the time that it's being killed.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Interface disabled
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Link beat lost.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Executing
'/etc/ifplugd/ifplugd.action ppp0 down'.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Killing child.
Jul 29 16:40:11 alix6-1 ifplugd(ppp0)[12601]: Program execution failed, return
value is 0.
Jul 29 16:40:12 alix6-1 pppd[13416]: Script /etc/ppp/ip-down finished (pid
13555), status = 0x1
-- Package-specific info:
-- System Information:
Debian Release: 6.0.6
APT prefers testing
APT policy: (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 3.9.0 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages ifplugd depends on:
ii debconf [debconf-2.0] 1.5.46 Debian configuration management sy
ii libc6 2.13-37 Embedded GNU C Library: Shared lib
ii libdaemon0 0.14-2 lightweight C library for daemons
ii lsb-base 4.1+Debian8 Linux Standard Base 4.1 init scrip
Versions of packages ifplugd recommends:
ii ifupdown 0.7.5 high level tools to configure netw
Versions of packages ifplugd suggests:
pn wpasupplicant <none> (no description available)
-- debconf information excluded
--- End Message ---
--- Begin Message ---
Version: 0.28-19.7+rm
Dear submitter,
as the package ifplugd has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see https://bugs.debian.org/1086877
The version of this package that was in Debian prior to this removal
can still be found using https://snapshot.debian.org/.
Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
[email protected].
Debian distribution maintenance software
pp.
Thorsten Alteholz (the ftpmaster behind the curtain)
--- End Message ---
