ba816ee087
I've started digging into the actual cause of the problem a week ago but didn't continue fixing this. The reason why the tests are failing is because torvalds/linux/commit/72f5e08dbba2d01aa90b592cf76c378ea233b00b has remapped the location of the TSS into the CPU entry area and we did update our default kernel to version 4.14 in NixOS/nixpkgs@88530e02b6. Back to VirtualBox: The guru meditation happens in selmRCGuestTssPostWriteCheck, which I think is only a followup error. I believe the right location couldn't be determined by VirtualBox and thus the write check function triggers that panic because it's reading from the wrong location. So the actual problem *only* surfaces whenever we use software virtualization, which we do for our tests because we don't have nested virtualization available. Our tests are also for testing the functionality of VirtualBox itself and not certain kernel versions or kernel features, so for the time being and until this is fixed, let's actually use kernel version 4.9 for the guests within the VM tests. Kernel 4.9 didn't have the mentioned change of the TSS location and thus the tests succeed. Signed-off-by: aszlig <aszlig@nix.build> Cc: @dtzWill
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-17.09 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-17.09
For pull-requests, please rebase onto nixpkgs master.
NixOS Linux distribution source code is located inside
nixos/ folder.
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