Messages in this thread | | | From | Andy Lutomirski <> | Date | Thu, 2 Jul 2015 17:39:17 -0700 | Subject | Re: [!GIT PULL] kdbus for 4.2 |
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On Fri, Jun 26, 2015 at 12:36 PM, Tom Gundersen <teg@jklm.no> wrote: > On Fri, Jun 26, 2015 at 9:33 PM, Andy Lutomirski <luto@amacapital.net> wrote: >> What's a good distro on which to poke at a full running system? > > Fedora Rawhide is probably currently your best bet.
I won't swear that all of the problems I'm seeing are 100% kdbus' fault, but Rawhide, updated today, has serious problems with the kdbus branch in Greg's char-misc tree.
Problem 1: Booting a kdbus-enabled kernel (CONFIG_KDBUS=y) causes gdm to bail saying "oops, something went wrong" or whatever the useless standard error message is.
I can work around problem 1 by booting with kdbus=1, but that's not okay. Unless this is limited to just some narrow range of Rawhide versions, I don't think the kernel gets to make changes that break userspace like that. Maybe this is a kernel issue, not a user issue, in which case it's not a big deal as long as it gets fixed.
Problem 2: Running 'sudo mount /mnt/share' from a terminal hangs the whole graphical session hard. This is repeatable. /mnt/share is virtfs, but I doubt that matters.
If I build exactly the same sources but set CONFIG_KDBUS=n, all is well.
I suspect that there are multiple issues here:
1. The current state of systemd's --disable-kdbus could be buggy. kdbusfs still gets mounted but isn't set up and then things break.
2. mount generates a bunch of dbus traffic. Apparently on the latest char-misc kdbus tree with the latest Rawhide, it blows up somehow.
That's all from me until next week.
--Andy
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