[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
As explained in https://bugs.debian.org/777113 I want to fix this in a more generic way in "service", "invoke-rc.d", and /lib/lsb/init- functions.d/40-systemd. ** Bug watch added: Debian Bug tracker #777113 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777113 ** Package changed: samba (Ubuntu) => sysvinit (Ubuntu) ** Also affects: sysvinit (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777113 Importance: Unknown Status: Unknown ** Changed in: sysvinit (Ubuntu) Milestone: None => ubuntu-15.03 ** Changed in: sysvinit (Ubuntu) Assignee: (unassigned) => Martin Pitt (pitti) ** Bug watch added: Debian Bug tracker #777115 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777115 ** Also affects: systemd (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=777115 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
I tested the updated service scripts and indeed does also fix my boot hang! -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
Actually, please forget the PPA; after further discussions with the Debian and upstream systemd maintainers we have settled for a different solution. This now works for me with samba and postfix. Can you please replace /usr/sbin/service with this script and confirm that it also fixes your boot hang? Thanks! ** Attachment added: "fixed /usr/sbin/service" https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+attachment/4312368/+files/service -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
Tim: Can you please revert the change to "service" (apt-get install --reinstall sysvinit-utils) and test the systemd in https://launchpad.net/~pitti/+archive/ubuntu/ppa ? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
This is another patch I experimented with which helps with a different kind of deadlock problem. But with the previous patch all of the practically reported issues are already covered, so I just keep it here in case we need it in the future. ** Patch added: "WIP: manager: avoid deadlocks for requests on already queued units" https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+attachment/4312245/+files/0003-WIP-manager-avoid-deadlocks-for-requests-on-already-.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
I pondered this for a while; quite naturally there is no perfect solution as synchronous reload/restart requests in hooks which may be part of a systemd unit transaction are fundamentally against the design of systemd. But this patch now seems to fix this bug and the three referenced Debian bugs, and supersedes Avoid-reload-and-re-start- requests-during-early-boot.patch and Avoid-reloading-services-when- shutting-down.patch, so I think it's better. Attaching here so that I don't lose them. ** Patch added: "manager: avoid queueing reloads of inactive units" https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+attachment/4312244/+files/0002-manager-avoid-queueing-reloads-of-inactive-units.patch -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
For keeping references: This is another case like https://bugs.debian.org/635777 and https://bugs.debian.org/624599 just a bit more general. ** Bug watch added: Debian Bug tracker #635777 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=635777 ** Bug watch added: Debian Bug tracker #624599 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624599 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
** Changed in: samba (Debian) Status: Unknown => Fix Committed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
** Changed in: systemd (Ubuntu) Status: Triaged => In Progress ** Changed in: systemd (Ubuntu) Milestone: None => ubuntu-15.03 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1417010] Re: Reloading services can result in a deadlock under systemd
** Summary changed: - systemd init gets stuck reloading smbd.service + Reloading services can result in a deadlock under systemd -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to samba in Ubuntu. https://bugs.launchpad.net/bugs/1417010 Title: Reloading services can result in a deadlock under systemd To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1417010/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
