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01b661f6a5* feat(v2): add runtime.ResetSignalHandlers() for Linux panic recovery
Add a new runtime function that allows users to reset signal handlers
before code that might panic from nil pointer dereferences.
On Linux, WebKit installs signal handlers without the SA_ONSTACK flag,
which prevents Go from properly recovering from panics caused by
SIGSEGV and other signals. This function adds SA_ONSTACK to the
relevant signal handlers (SIGSEGV, SIGBUS, SIGFPE, SIGABRT).
Usage:
```go
go func() {
defer func() {
if err := recover(); err != nil {
log.Printf("Recovered: %v", err)
}
}()
runtime.ResetSignalHandlers()
// Code that might panic...
}()
```
The function is a no-op on macOS and Windows.
Fixes #3965
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
* test(v2): add panic-recovery-test example
Add an example that demonstrates the Linux signal handler issue (#3965)
and verifies the fix using runtime.ResetSignalHandlers().
The example includes:
- A Greet function that triggers a nil pointer dereference after a delay
- Auto-call from frontend after 5 seconds
- README with reproduction steps
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
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| .. | ||
| _category_.json | ||
| angular.mdx | ||
| application-development.mdx | ||
| crossplatform-build.mdx | ||
| custom-protocol-schemes.mdx | ||
| dynamic-assets.mdx | ||
| file-association.mdx | ||
| frameless.mdx | ||
| frontend.mdx | ||
| ides.mdx | ||
| linux-distro-support.mdx | ||
| linux.mdx | ||
| local-development.mdx | ||
| mac-appstore.mdx | ||
| manual-builds.mdx | ||
| migrating.mdx | ||
| mouse-buttons.mdx | ||
| nixos-font.mdx | ||
| obfuscated.mdx | ||
| overscroll.mdx | ||
| routing.mdx | ||
| signing.mdx | ||
| single-instance-lock.mdx | ||
| sveltekit.mdx | ||
| templates.mdx | ||
| troubleshooting.mdx | ||
| vscode.mdx | ||
| windows-installer.mdx | ||
| windows.mdx | ||