By default, they take the usual value of "50% of physical RAM".
As /dev/shm can be filled by anyone, and tmpfs does not trigger the OOM killer (and
can hang the machine due to a lack of RAM), I need to configure that down
in order to avoid crashes.
There is still left the /var/run/nscd tmpfs filesystem, also created with 50%
of the RAM, but at least not writeable by anyone. We could find a reasonable
low value for that, or allow configuration.
svn path=/nixos/trunk/; revision=21140
the current configuration don't match the running kernel. This
ensures that modprobe still works after a "nixos-rebuild switch" to
a configuration that has a different kernel version.
svn path=/nixos/trunk/; revision=19696
to the nixpkgs trunk 'kernelPackages'.
Seeing a strange kernelPackages mentioned in installation-cd-rescue (2.6.31_something) I
update that to 2.6.32.
svn path=/nixos/trunk/; revision=19443
readd r19267 (the issue should be fixed now)
Eelco Dolstra and Nicolas Pierron both kept asking me to pay attention
to the rendered manual. There is one catch: example settings such as
pkgs.kernelPackages_2_6_25 are correct however they don't render
properly. Moreover you don't want those examples to be evaluated (maybe
compiling a kernel ?) when building the manual only.
So use Strings and add a copy & paste note.
This is still a hacky. Maybe a kind of typed "verbatim" expression
should be added (?)
svn path=/nixos/trunk/; revision=19281
pkgs/build-support/vm). This should make the NixOS regression tests
more robust on heavily loaded systems, where they now frequently
fail:
server# mounting //10.0.2.4/qemu on /hostfs...
server# [ 8.233991] Slow work thread pool: Starting up
server# [ 8.234721] Slow work thread pool: Ready
server# [ 23.271708] CIFS VFS: No response for cmd 114 mid 1
server# [ 23.272443] CIFS VFS: cifs_mount failed w/return code = -112
server# mount: Host is down
server# [ 23.275188] Kernel panic - not syncing: Attempted to kill init!
Maybe there is a configurable timeout somewhere, which would be much
nicer...
svn path=/nixos/trunk/; revision=19248
write some magic string to ttyS0. This removes the dependency on
having a CIFS mount.
* Use a thread to process the stdout/stderr of each QEMU instance.
* Add a kernel command line parameter "stage1panic" to tell stage 1 to
panic if an error occurs. This is faster than waiting until
connect() times out.
svn path=/nixos/trunk/; revision=19212
/nix bind mounted from a fs not rootfs.
As niksnut found, if the sources of bind mounted directories are
umounted before remounting them as "ro", a "mount -o remount,ro" on the
bind targets will not leave the filesystem properly umounted, the same
way as a "-o remount,ro" would do on a usual filesystem.
So, the trick of always remounting as 'ro' before attempting an umount seems
to fix the problem.
svn path=/nixos/trunk/; revision=19008
GRUB version changes. (That's the complete version from the name
attribute, not the boot.loader.grub.version attribute.) The current
version is recorded in /boot/grub/version. This is required to
prevent massive breakage when we change the default value of
boot.loader.grub.version to "2".
svn path=/nixos/trunk/; revision=18997
modules that should be added to the initrd, but should only be
loaded on demand (e.g. by the kernel or by udev). This is
especially useful in the installation CD, where we now only load the
modules needed by the hardware.
* Enable automatic modprobing by udev in the initrd.
svn path=/nixos/trunk/; revision=18975
automatically loaded by the kernel, load it at boot time.
* Put the ext2 module (which used to be built in) in the initrd to
prevent unexpected breakage.
svn path=/nixos/trunk/; revision=18963
qemu_kvm. Installation doesn't take place yet. VM is started
printing a remote controlled "Hello".
This serves as example how to run a vm within a bulid job.
svn path=/nixos/trunk/; revision=18887
unmounted or at least remounted read-only during shutdown. Upstart
0.6 apparently uses nscd to do some name lookups, resulting in it
holding some mmap mappings to deleted files in /var/run/nscd.
E.g. lsof shows:
init 1 root DEL REG 253,0 1850313 /var/run/nscd/dbyn3Piz
init 1 root DEL REG 253,0 1850312 /var/run/nscd/dbt2e8PH
See also http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=324900.
This is a workaround - it would be better if Upstart didn't do this.
svn path=/nixos/branches/upstart-0.6/; revision=18258
statically configured interface (i.e. we're not running dhclient).
Otherwise the ntpd job won't be triggered.
* Use the "-n" flag of "initctl emit" to send the event
asynchronously.
svn path=/nixos/branches/upstart-0.6/; revision=18227
no longer emits specific events for those. Instead it emits a
"runlevel" event. The "runlevel" task starts the "shutdown" task to
perform the desired action.
* Upstart 0.6 no longer has a "shutdown" event, so "stop on shutdown"
no longer works. Therefore the shutdown task explicitly stops all
running Upstart jobs, before sending a TERM/KILL signal to all
remaining processes.
* Do a "chvt 1" at the start of the shutdown task to switch to the
console.
* Use /dev/console instead of /dev/tty1, since if somebody is logged
in on tty1, bad things will happen.
svn path=/nixos/branches/upstart-0.6/; revision=18224
