aszlig f19c961b4e
linux-testing: Fix arg list too long in modinst
With the default kernel and thus with the build I have tested in
74ec94bfa2e57e2c0beeee0e469de58391d04a7b, we get an error during
modules_install:

make[2]: execvp: /nix/store/.../bin/bash: Argument list too long

I haven't noticed this build until I actually tried booting using this
kernel because make didn't fail here.

The reason this happens within Nix and probably didn't yet surface in
other distros is that programs only have a limited amount of memory
available for storing the environment and the arguments.

Environment variables however are quite common on Nix and thus we
stumble on problems like this way earlier - in this case Linux 4.8 - but
I have noticed this in 4.7-next as well already.

The fix is far from perfect and suffers performance overhead because we
now run grep for every *.mod file instead of passing all *.mod files
into one single invocation of grep.

But comparing the performance overhead (around 1s on my machine) with
the overall build time of the kernel I think the overhead really is
neglicible.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2016-08-30 06:55:52 +02:00
2016-08-23 18:50:06 +01:00
2016-08-29 17:50:06 +02:00
2016-03-05 23:23:19 +01:00
2016-07-29 20:54:02 -05:00
2016-02-28 23:39:38 +00:00
2016-07-22 15:00:55 +02:00

logo

Build Status Code Triagers Badge Issue Stats Issue Stats

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-16.03 for the latest release and nixos-unstable for the latest successful build of master:

% git remote update channels
% git rebase channels/nixos-16.03

For pull-requests, please rebase onto nixpkgs master.

NixOS linux distribution source code is located inside nixos/ folder.

Communication:

Description
No description provided
Readme 1.5 GiB
Languages
Nix 96.3%
Shell 1.8%
Python 0.7%
Perl 0.4%
C 0.3%
Other 0.1%