mirror of
https://github.com/hyprwm/hyprland-wiki.git
synced 2024-11-17 02:25:58 +01:00
137 lines
3.8 KiB
Markdown
137 lines
3.8 KiB
Markdown
---
|
|
weight: 10
|
|
title: Crashes and Bugs
|
|
---
|
|
|
|
## Getting the log
|
|
|
|
If you are in a TTY, and the Hyprland session that crashed was the last one you
|
|
launched, the log can be printed with
|
|
|
|
```sh
|
|
cat $XDG_RUNTIME_DIR/hypr/$(ls -t $XDG_RUNTIME_DIR/hypr/ | head -n 1)/hyprland.log
|
|
```
|
|
|
|
if you are in a Hyprland session, and you want the log of the last session, use
|
|
|
|
```sh
|
|
cat $XDG_RUNTIME_DIR/hypr/$(ls -t $XDG_RUNTIME_DIR/hypr/ | head -n 2 | tail -n 1)/hyprland.log
|
|
```
|
|
|
|
## Obtaining the Hyprland Crash Report
|
|
|
|
If you have `$XDG_CACHE_HOME` set, the crash report directory is
|
|
`$XDG_CACHE_HOME/hyprland`. If not, it's `$HOME/.cache/hyprland`.
|
|
|
|
Go to the crash report directory and you should find a file named
|
|
`hyprlandCrashReport[XXXX].txt` where `[XXXX]` is the PID of the process that
|
|
crashed.
|
|
|
|
Attach that file to your issue.
|
|
|
|
## Crashes at launch
|
|
|
|
Diagnose the issue by what is in the log:
|
|
|
|
- `sWLRBackend was NULL!` -> launch in the TTY and refer to the wlr logs in RED.
|
|
- `Monitor X has NO PREFERRED MODE, and an INVALID one was requested` -> your
|
|
monitor is bork.
|
|
- Other -> see the coredump. Use `coredumpctl`, find the latest one's PID and do
|
|
`coredumpctl info PID`.
|
|
- failing on a driver (e.g. `radeon`) -> try compiling with
|
|
`make legacyrenderer`, if that doesn't help, report an issue.
|
|
- failing on `wlr-xxx` -> try compiling with `make legacyrenderer`, if that
|
|
doesn't help, report an issue, and also refer to the TTY wlr logs in RED like
|
|
in the first point.
|
|
- failing on `Hyprland` -> report an issue.
|
|
|
|
## Crashes not at launch
|
|
|
|
Report an issue on GitHub or on the Discord server.
|
|
|
|
## Obtaining a debug stacktrace
|
|
|
|
Systemd-only.
|
|
|
|
Build hyprland in debug (`make debug`) and run. Get it to crash. Then, in a tty or terminal, do
|
|
`coredumpctl debug Hyprland`.
|
|
|
|
If gdb asks you for symbols, say `y`, if it asks about paging, say `c`.
|
|
|
|
Once you get to `(gdb)`, run `bt -full` and post the output.
|
|
|
|
## Bugs
|
|
|
|
First of all, **_READ THE [FAQ PAGE](../FAQ)_**
|
|
|
|
If your bug is not listed there, you can ask on the Discord server or open an
|
|
issue on GitHub.
|
|
|
|
## Bisecting an issue
|
|
|
|
"Bisecting" is finding the first _git_ commit that introduced a specific bug or
|
|
regression using binary search. This is done in `git` using the `git bisect` command.
|
|
|
|
First, clone the Hyprland repo if you haven't already:
|
|
|
|
```sh
|
|
git clone --recursive https://github.com/hyprwm/Hyprland
|
|
cd Hyprland
|
|
```
|
|
|
|
Start the bisect process:
|
|
|
|
```sh
|
|
git bisect start
|
|
```
|
|
|
|
Enter the first known good commit hash that did not contain the issue:
|
|
|
|
```sh
|
|
git bisect good [good commit]
|
|
```
|
|
|
|
Then, enter the known bad commit hash that does contain the issue. You can simply use HEAD:
|
|
|
|
```sh
|
|
git bisect bad HEAD
|
|
```
|
|
|
|
_git_ will now checkout a commit in the middle of the specified range.
|
|
Now, reset and build Hyprland:
|
|
|
|
```sh
|
|
git reset --hard --recurse-submodules
|
|
make all
|
|
```
|
|
|
|
...and run the built executable from the TTY `./build/Hyprland`.
|
|
|
|
Try to reproduce your issue. If you can't (i.e. the bug is not present), go back to the
|
|
Hyprland repo and run `git bisect good`. If you can reproduce it, run `git bisect bad`.
|
|
_git_ will then checkout another commit and continue the binary search.
|
|
If there's a build error, run `git bisect skip`.
|
|
|
|
Reset, build and install Hyprland again and repeat this step until _git_ identifies the
|
|
commit that introduced the bug:
|
|
|
|
```
|
|
[commit hash] is the first bad commit
|
|
```
|
|
|
|
## Building the Wayland stack with ASan
|
|
|
|
If requested, this is the deepest level of memory issue debugging possible.
|
|
|
|
_Do this in the tty, with no Hyprland instances running._
|
|
|
|
Clone hyprland: `git clone --recursive https://github.com/hyprwm/Hyprland`
|
|
|
|
`make asan`
|
|
|
|
Reproduce your crash. Hyprland will exit back to the tty.
|
|
|
|
Now, in either `cwd`, `~` or `./build`, search for file(s) named
|
|
`asan.log.XXXXX` where XXXXX is a number.
|
|
|
|
Zip all of them up and attach to your issue.
|