Bug#712439: [Pkg-systemd-maintainers] Bug#731208: systemd: fails to boot with encrypted swap

2013-12-09 Thread Gerald Turner 
Michael Stapelberg stapelb...@debian.org writes:
 I spent some time today looking into these “systemd fails to boot with
 encrypted swap” problems, and, just as Michael Biebl suggested, this
 indeed seems to be a problem with the dmsetup package. When applying
 this patch, my VM boots just fine with encrypted swap:

 --- /lib/udev/rules.d/55-dm.rules 2013-08-07 09:45:01.0 -0400
 +++ /root/55-dm.rules 2013-12-08 10:12:48.104015288 -0500
 @@ -98,6 +98,8 @@
  # and 'DM subsystem' related rules enabled in this case.
  ENV{DM_SUSPENDED}==1, ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=1

 +OPTIONS+=watch
 +
  GOTO=dm_end

  LABEL=dm_disable

 Can any of you please confirm that this works for you? I will then ask
 the dmsetup maintainer(s) to fix this on their end.

Verified this patch solved the encrypted swap / systemd hang on the two
machines where I'm having this issue.  Thanks!

 The root cause seems to be that systemd calls mkswap and then waits
 for an event to continue with the swapon command, but never gets the
 event. Fedora/RHEL has fixed this by adding a rules file to enable the
 watch option, but unfortunately the Debian dmsetup package does not
 use the upstream rules files at all :-|.

 See also those reports for Fedora/RHEL:
 https://bugzilla.redhat.com/show_bug.cgi?id=759402
 https://bugzilla.redhat.com/show_bug.cgi?id=711394

-- 
Gerald Turner   Email: gtur...@unzane.com   JID: gtur...@unzane.com
GPG: 0xFA8CD6D5  21D9 B2E8 7FE7 F19E 5F7D  4D0C 3FA0 810F FA8C D6D5


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Bug#712439: [Pkg-systemd-maintainers] Bug#731208: systemd: fails to boot with encrypted swap

2013-12-08 Thread Michael Stapelberg 
Hi Russel, Gerald, Michael, Sam,

I spent some time today looking into these “systemd fails to boot with
encrypted swap” problems, and, just as Michael Biebl suggested, this
indeed seems to be a problem with the dmsetup package. When applying
this patch, my VM boots just fine with encrypted swap:

--- /lib/udev/rules.d/55-dm.rules 2013-08-07 09:45:01.0 -0400
+++ /root/55-dm.rules 2013-12-08 10:12:48.104015288 -0500
@@ -98,6 +98,8 @@
 # and 'DM subsystem' related rules enabled in this case.
 ENV{DM_SUSPENDED}==1, ENV{DM_UDEV_DISABLE_OTHER_RULES_FLAG}=1
 
+OPTIONS+=watch
+
 GOTO=dm_end
 
 LABEL=dm_disable

Can any of you please confirm that this works for you? I will then ask
the dmsetup maintainer(s) to fix this on their end.

The root cause seems to be that systemd calls mkswap and then waits for
an event to continue with the swapon command, but never gets the
event. Fedora/RHEL has fixed this by adding a rules file to enable the
watch option, but unfortunately the Debian dmsetup package does not use
the upstream rules files at all :-|.

See also those reports for Fedora/RHEL:
https://bugzilla.redhat.com/show_bug.cgi?id=759402
https://bugzilla.redhat.com/show_bug.cgi?id=711394

-- 
Best regards,
Michael


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