Lost in the merge

src/bun.js/api/bun/process.zig

@@ -642,6 +642,8 @@ pub const WaiterThread = if (Environment.isPosix) WaiterThreadPosix else struct
     }
 
     pub fn setShouldUseWaiterThread() void {}
+
+    pub fn reloadHandlers() void {}
 };
 
 // Machines which do not support pidfd_open (GVisor, Linux Kernel < 5.6)
@@ -830,8 +832,10 @@ const WaiterThreadPosix = struct {
         _ = bun.sys.write(instance.eventfd, &one).unwrap() catch 0;
     }
 
-    pub fn loop() void {
-        Output.Source.configureNamedThread("Waitpid");
+    pub fn reloadHandlers() void {
+        if (!should_use_waiter_thread) {
+            return;
+        }
 
         if (comptime Environment.isLinux) {
             var current_mask = std.os.empty_sigset;
@@ -841,10 +845,13 @@ const WaiterThreadPosix = struct {
                 .mask = current_mask,
                 .flags = std.os.SA.NOCLDSTOP,
             };
-            // create a SIGCHLD handler for monitoring child processes
             std.os.sigaction(std.os.SIG.CHLD, &act, null) catch {};
         }
+    }
 
+    pub fn loop() void {
+        Output.Source.configureNamedThread("Waitpid");
+        reloadHandlers();
         var this = &instance;
 
         outer: while (true) {

src/bun.js/bindings/c-bindings.cpp

@@ -1,5 +1,6 @@
 // when we don't want to use @cInclude, we can just stick wrapper functions here
 #include "root.h"
+#include <csignal>
 #include <cstdint>
 
 #if !OS(WINDOWS)
@@ -295,7 +296,7 @@ static inline void make_pos_h_l(unsigned long* pos_h, unsigned long* pos_l,
 extern "C" ssize_t sys_preadv2(int fd, const struct iovec* iov, int iovcnt,
     off_t offset, unsigned int flags)
 {
-	return syscall(SYS_preadv2, fd, iov, iovcnt, offset, offset>>32, RWF_NOWAIT);
+    return syscall(SYS_preadv2, fd, iov, iovcnt, offset, offset >> 32, RWF_NOWAIT);
 }
 extern "C" ssize_t sys_pwritev2(int fd, const struct iovec* iov, int iovcnt,
     off_t offset, unsigned int flags)

src/crash_reporter.zig

@@ -46,7 +46,7 @@ pub fn reloadHandlers() !void {
     };
 
     try setup_sigactions(&act);
-
+    @import("root").bun.spawn.WaiterThread.reloadHandlers();
     bun_ignore_sigpipe();
 }
 const os = std.os;
@@ -59,6 +59,7 @@ pub fn start() !void {
 
     try setup_sigactions(&act);
     bun_ignore_sigpipe();
+    @import("root").bun.spawn.WaiterThread.reloadHandlers();
 }
 
 extern fn bun_ignore_sigpipe() void;