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This slightly extends the symbol file test and checks which symbols are
listed in one list but missing in the other. This is tremendously useful
to quickly determine which symbols wheren't exposed properly but should
have been.
(This is is implemented in pure C, no systemd helpers, to ensure we see
libsystemd.so API as any other tool would.)
Instead of building the initrds for the mkosi images with dracut,
let's switch to using mkosi presets to build the initrd with mkosi
as well.
This commit splits up our single image build into three separate
mkosi presets:
1. The "base" preset. This image contains systemd and all its runtime
dependencies. The sole purpose of this image is to serve as a base image
for the initrd and the final image. It's also responsible for building
systemd from source with the build script. The results are installed into
the base image. Note that we install the systemd and udev packages into this
image as well to prevent package managers from overriding the systemd we built
from source with the distro packaged systemd if it's pulled in as a dependency
by another package from the initrd or final profiles.
2. The "initrd" preset. This image provides the initrd. It's trivial and does
nothing more than packaging the base image up as a zstd compressed initramfs and
adds /init and /etc/initrd-release symlinks to the image.
3. The "final" preset. This image builds on top of the base image and adds
a kernel and extra packages that are useful for testing and debugging.
We also split out the optional kernel build into a separate set of config files
that are only included if a kernel to build is actually provided.
Note that this commit doesn't really change anything about how mkosi is used.
The commands remain the same, except that mkosi will now build all the presets
in order. "mkosi summary" will show the summary of all the presets. "mkosi qemu,
boot, shell" will always boot the final preset. With "-f", all presets will be
built and the final one is booted. "-i" makes a cache of each preset.
The only thing to keep in mind is that specifying config via the mkosi CLI will
apply to each of the presets. e.g. any extra packages added with "-p" will be
installed in both the initrd and the final image. To apply local configuration
to a single preset, create a file 00-local.conf in
mkosi.presets/<profile>/mkosi.conf.d and put all the preset specific configuration
in there.
Last month I monkey-patched journald to produce a small (64K) but valid
journal and used that as an input to four AFL fuzzers. After a month it
generated quite a nice corpora (4738 test cases) and after filtering
and minimizing it I was left with 619 unique journals with various
levels of corruption that probe the journal code.
It seems to detect past issues like systemd#26567, etc.
If .next_entry_array_offset points to one of the previous entry or the
self entry, then the loop for entry array objects may run infinitely.
Let's assume that the offsets of each entry array object are in
increasing order, and check that in loop.
Fixes#27470.
Hello
This pull req is adapting pull req #5772 (which fixed issue #5047), for the very similar computer Dell Latitude E6420 which has the same problem with the hardware switch to toggle wifi (aka rfkill). The symptom is the following repeated msgs in dmesg
[ 309.010284] atkbd serio0: Use 'setkeycodes e008 <keycode>' to make it known.
[ 309.016020] atkbd serio0: Unknown key pressed (translated set 2, code 0x88 on isa0060/serio0).
Adding this line to include E6 models causes these messages to stop showing in dmesg
Thank you
As the systemd-pstore process is quite short lived, it might sometimes
lack the necessary metadata to make matching against a unit or a syslog
tag work. Since we already use a cursor file to make the matching window
small as possible, let's just drop the unit match completely and hope
for the best.
Resolves: #27453
Otherwise,
1. X.path triggered X.service, and the service has waiting start job,
2. systemctl stop X.service
3. the waiting start job is cancelled to install new stop job,
4. path_trigger_notify() is called, and may reinstall new start job,
5. the stop job cannot be installed, and triggeres assertion.
So, instead, let's add a defer event source, then enqueue the new start
job after the stop (or any other type) job finished.
Fixes https://github.com/systemd/systemd/issues/24577#issuecomment-1522628906.
reload/reexec currently used a separate implementation of the /run/ disk
space check, different from the one used for switch-root, even though
the code is mostly the same. The one difference is that the former
checks are authoritative, the latter are just informational (that's
because refusing a reload/reexec is relatively benign, but refusing a
switch-root quite troublesome, since this code is entered when it's
already "too late" to turn turn back, i.e. when the preparatory
transaction to initiate the switch root are already fully executed.
Let's share some code, and unify codepaths.
(This is preparation for later addition of a "userspace reboot" concept)
No change in behaviour, just refactoring.
We hardcode the path the initrd uses to prepare the final mount point at
so many places, let's also imply it in "systemctl switch-root" if not
specified.
This adds the fallback both to systemctl and to PID 1 (this is because
both to — different – checks on the path).
