[Bug 1823790] Re: QEMU mishandling of SO_PEERSEC forces systemd into tight loop

[Steve Dodd]

Hmm, I'm using qemu-5.1.0 and I'm still seeing this (host is bionic,
container image is focal)

[..]
getsockopt(31, SOL_SOCKET, SO_PEERGROUPS, 0x7ffdbd58941c, [4]) = -1 ERANGE 
(Numerical result out of range)
getsockopt(31, SOL_SOCKET, SO_PEERGROUPS, 0x7ffdbd58941c, [4]) = -1 ERANGE 
(Numerical result out of range)
getsockopt(31, SOL_SOCKET, SO_PEERGROUPS, 0x7ffdbd58941c, [4]) = -1 ERANGE 
(Numerical result out of range)
[..]

Regression?

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https://bugs.launchpad.net/bugs/1823790

Title:
  QEMU mishandling of SO_PEERSEC forces systemd into tight loop

Status in QEMU:
  Fix Released

Bug description:
  While building Debian images for embedded ARM target systems I
  detected that QEMU seems to force newer systemd daemons into a tight
  loop.

  My setup is the following:

  Host machine: Ubuntu 18.04, amd64
  LXD container: Debian Buster, arm64, systemd 241
  QEMU: qemu-aarch64-static, 4.0.0-rc2 (custom build) and 3.1.0 (Debian 
1:3.1+dfsg-7)

  To easily reproduce the issue I have created the following repository:
  https://github.com/lueschem/edi-qemu

  The call where systemd gets looping is the following:
  2837 getsockopt(3,1,31,274891889456,274887218756,274888927920) = -1 errno=34 
(Numerical result out of range)

  Furthermore I also verified that the issue is not related to LXD.
  The same behavior can be reproduced using systemd-nspawn.

  This issue reported against systemd seems to be related:
  https://github.com/systemd/systemd/issues/11557

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