From b67143dbad4be6b39c6857c194f5bf93bf512c93 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Fri, 12 Jan 2024 15:02:22 -0500
Subject: [PATCH] linux: disable io_uring on ppc64le

Since `io_uring` support was added, libuv's signal handler randomly
segfaults on ppc64le when interrupting `epoll_pwait`.  Disable it
pending further investigation.

Issue: https://github.com/libuv/libuv/issues/4283
---
 src/unix/linux.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/unix/linux.c b/src/unix/linux.c
index 3c1313e7efc..7dc60bc6ae6 100644
--- a/src/unix/linux.c
+++ b/src/unix/linux.c
@@ -463,6 +463,9 @@ static int uv__use_io_uring(void) {
 #elif defined(__arm__) && __SIZEOF_POINTER__ == 4
   /* See https://github.com/libuv/libuv/issues/4158. */
   return 0;  /* All 32 bits kernels appear buggy. */
+#elif (defined(__powerpc64__) || defined(__ppc64__)) && defined(_LITTLE_ENDIAN)
+  /* See https://github.com/libuv/libuv/issues/4283. */
+  return 0; /* Random SIGSEGV in signal handler. */
 #else
   /* Ternary: unknown=0, yes=1, no=-1 */
   static _Atomic int use_io_uring;