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98 lines
2.9 KiB
Markdown
98 lines
2.9 KiB
Markdown
# Getting the log
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If you are in a TTY, and the hyprland session that crashed was the last one you
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launched, the log will be printed with
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```sh
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cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 1)/hyprland.log
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```
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feel free to save it to a file, save, copy, etc.
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if you are in a Hyprland session, and you want the log of the last session, use
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```sh
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cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 2 | tail -n 1)/hyprland.log
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```
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# Crashes at launch
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Diagnose the issue by what is in the log:
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- `sWLRBackend was NULL!` -> launch in the TTY and refer to the wlr logs in RED.
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- `Monitor X has NO PREFERRED MODE, and an INVALID one was requested` -> your
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monitor is bork.
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- Other -> see the coredump. Use `coredumpctl`, find the latest one's PID and do
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`coredumpctl info PID`.
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- failing on a driver (e.g. `radeon`) -> try compiling with
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`make legacyrenderer`, if that doesn't help, report an issue.
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- failing on `wlr-xxx` -> try compiling with `make legacyrenderer`, if that
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doesn't help, report an issue, and also refer to the TTY wlr logs in RED like
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in the first point.
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- failing on `Hyprland` -> report an issue.
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# Crashes not at launch
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Report an issue on GitHub or on the Discord server.
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# Bugs
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First of all, **_READ THE [FAQ PAGE](../FAQ)_**
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If your bug is not listed there, you can ask on the Discord server or open an
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issue on GitHub.
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# Building the Wayland stack with ASan
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If requested, this is the deepest level of memory issue debugging possible.
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Prepare yourself mentally, and then:
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recommended to do in tty
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clone wayland (`git clone --recursive https://gitlab.freedesktop.org/wayland/wayland`)
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clone hyprland (`git clone --recursive https://github.com/hyprwm/Hyprland`)
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edit your config to have a terminal that will launch:
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```
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bind = SUPER, Q, exec, LD_PRELOAD=/usr/lib/libasan.so kitty
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```
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(I put kitty, on `SUPER+Q` can be anything)
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add this env to reset ASAN_OPTIONS for children:
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```
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env = ASAN_OPTIONS,
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```
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wayland:
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```
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meson ./build --prefix=/usr --buildtype=debug -Db_sanitize=address
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sudo ninja -C build install
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```
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hyprland:
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```
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cmake --no-warn-unused-cli -DCMAKE_BUILD_TYPE:STRING=Debug -DWITH_ASAN:STRING=True -S . -B ./build -G Ninja
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cmake --build ./build --config Debug --target all -j`nproc 2>/dev/null || getconf NPROCESSORS_CONF`
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sudo make install
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```
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Exit Hyprland to a TTY, cd to the cloned hyprland, and launch it:
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```
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ASAN_OPTIONS="detect_odr_violation=0,log_path=asan.log" ./build/Hyprland -c ~/.config/hypr/hyprland.conf
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```
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open your terminal
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to open any app just add `LD_PRELOAD=/usr/lib/libasan.so` to the beginning of the cmd
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Do whatever you used to do in order to crash the compositor.
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Go to `~` or `cwd` and look for `asan.log.XXXXX` files. Zip all and attach to the issue.
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once you are done, to revert your horribleness of no app opening without the ld preload just go to the cloned wayland and do
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```
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sudo rm -rf ./build
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meson ./build --prefix=/usr --buildtype=release
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sudo ninja -C build install
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```
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