chore: backport EPROTOTYPE fixes from libuv (#32856)

This commit backports three commits from libuv's 1.x branch to fix
issues with CPU going to 100% on macOS when EPROTOTYPE is returned.

See: abb109f30f
See: 3a7b95593a
See: de24da8c11
This commit is contained in:
Fedor Indutny 2022-02-17 06:58:21 +01:00 committed by GitHub
parent 34129b83a4
commit fe43296f7f
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4 changed files with 137 additions and 0 deletions

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@ -28,3 +28,6 @@ fix_crash_caused_by_gethostnamew_on_windows_7.patch
fix_suppress_clang_-wdeprecated-declarations_in_libuv.patch fix_suppress_clang_-wdeprecated-declarations_in_libuv.patch
fix_don_t_create_console_window_when_creating_process.patch fix_don_t_create_console_window_when_creating_process.patch
fix_serdes_test.patch fix_serdes_test.patch
darwin_remove_eprototype_error_workaround_3405.patch
darwin_translate_eprototype_to_econnreset_3413.patch
darwin_bump_minimum_supported_version_to_10_15_3406.patch

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@ -0,0 +1,25 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Tue, 8 Feb 2022 14:18:29 +0100
Subject: darwin: bump minimum supported version to 10.15 (#3406)
We can't realistically claim to support 10.7 or any version that Apple
no longer supports so let's bump the baseline to something more
realistic.
Refs: https://github.com/libuv/libuv/pull/482
Refs: https://github.com/libuv/libuv/pull/3405
diff --git a/deps/uv/SUPPORTED_PLATFORMS.md b/deps/uv/SUPPORTED_PLATFORMS.md
index 30e0ea617a6fcaa5b4b7c7c5b117652e61f367d3..dc57dfb12dc7ddf8d29308ac44f46084a933d5ca 100644
--- a/deps/uv/SUPPORTED_PLATFORMS.md
+++ b/deps/uv/SUPPORTED_PLATFORMS.md
@@ -3,7 +3,7 @@
| System | Support type | Supported versions | Notes |
|---|---|---|---|
| GNU/Linux | Tier 1 | Linux >= 2.6.32 with glibc >= 2.12 | |
-| macOS | Tier 1 | macOS >= 10.7 | |
+| macOS | Tier 1 | macOS >= 10.15 | Current and previous macOS release |
| Windows | Tier 1 | >= Windows 8 | VS 2015 and later are supported |
| FreeBSD | Tier 1 | >= 10 | |
| AIX | Tier 2 | >= 6 | Maintainers: @libuv/aix |

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@ -0,0 +1,65 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Sun, 9 Jan 2022 12:20:15 +0100
Subject: darwin: remove EPROTOTYPE error workaround (#3405)
It's been reported in the past that OS X 10.10, because of a race
condition in the XNU kernel, sometimes returns a transient EPROTOTYPE
error when trying to write to a socket. Libuv handles that by retrying
the operation until it succeeds or fails with a different error.
Recently it's been reported that current versions of the operating
system formerly known as OS X fail permanently with EPROTOTYPE under
certain conditions, resulting in an infinite loop.
Because Apple isn't exactly forthcoming with bug fixes or even details,
I'm opting to simply remove the workaround and have the error bubble up.
Refs: https://github.com/libuv/libuv/pull/482
diff --git a/deps/uv/src/unix/stream.c b/deps/uv/src/unix/stream.c
index bc64fe8f44b26d9f4c0d4d0d282b65cdf11a531b..1af448e7691392c3f7794eed1905d9132394e207 100644
--- a/deps/uv/src/unix/stream.c
+++ b/deps/uv/src/unix/stream.c
@@ -58,20 +58,6 @@ struct uv__stream_select_s {
fd_set* swrite;
size_t swrite_sz;
};
-
-/* Due to a possible kernel bug at least in OS X 10.10 "Yosemite",
- * EPROTOTYPE can be returned while trying to write to a socket that is
- * shutting down. If we retry the write, we should get the expected EPIPE
- * instead.
- */
-# define RETRY_ON_WRITE_ERROR(errno) (errno == EINTR || errno == EPROTOTYPE)
-# define IS_TRANSIENT_WRITE_ERROR(errno, send_handle) \
- (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS || \
- (errno == EMSGSIZE && send_handle != NULL))
-#else
-# define RETRY_ON_WRITE_ERROR(errno) (errno == EINTR)
-# define IS_TRANSIENT_WRITE_ERROR(errno, send_handle) \
- (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS)
#endif /* defined(__APPLE__) */
static void uv__stream_connect(uv_stream_t*);
@@ -866,17 +852,17 @@ static int uv__try_write(uv_stream_t* stream,
do
n = sendmsg(uv__stream_fd(stream), &msg, 0);
- while (n == -1 && RETRY_ON_WRITE_ERROR(errno));
+ while (n == -1 && errno == EINTR);
} else {
do
n = uv__writev(uv__stream_fd(stream), iov, iovcnt);
- while (n == -1 && RETRY_ON_WRITE_ERROR(errno));
+ while (n == -1 && errno == EINTR);
}
if (n >= 0)
return n;
- if (IS_TRANSIENT_WRITE_ERROR(errno, send_handle))
+ if (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS)
return UV_EAGAIN;
return UV__ERR(errno);

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@ -0,0 +1,44 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ben Noordhuis <info@bnoordhuis.nl>
Date: Wed, 12 Jan 2022 16:11:43 +0100
Subject: darwin: translate EPROTOTYPE to ECONNRESET (#3413)
macOS versions 10.10 and 10.15 - and presumbaly 10.11 to 10.14, too -
have a bug where a race condition causes the kernel to return EPROTOTYPE
because the socket isn't fully constructed.
It's probably the result of the peer closing the connection and that is
why libuv translates it to ECONNRESET.
Previously, libuv retried until the EPROTOTYPE error went away but some
VPN software causes the same behavior except the error is permanent, not
transient, turning the retry mechanism into an infinite loop.
Refs: https://github.com/libuv/libuv/pull/482
Refs: https://github.com/libuv/libuv/pull/3405
diff --git a/deps/uv/src/unix/stream.c b/deps/uv/src/unix/stream.c
index 1af448e7691392c3f7794eed1905d9132394e207..9d22debf2bf5bd5912ade152e55a85ad652e3819 100644
--- a/deps/uv/src/unix/stream.c
+++ b/deps/uv/src/unix/stream.c
@@ -865,6 +865,20 @@ static int uv__try_write(uv_stream_t* stream,
if (errno == EAGAIN || errno == EWOULDBLOCK || errno == ENOBUFS)
return UV_EAGAIN;
+#ifdef __APPLE__
+ /* macOS versions 10.10 and 10.15 - and presumbaly 10.11 to 10.14, too -
+ * have a bug where a race condition causes the kernel to return EPROTOTYPE
+ * because the socket isn't fully constructed. It's probably the result of
+ * the peer closing the connection and that is why libuv translates it to
+ * ECONNRESET. Previously, libuv retried until the EPROTOTYPE error went
+ * away but some VPN software causes the same behavior except the error is
+ * permanent, not transient, turning the retry mechanism into an infinite
+ * loop. See https://github.com/libuv/libuv/pull/482.
+ */
+ if (errno == EPROTOTYPE)
+ return UV_ECONNRESET;
+#endif /* __APPLE__ */
+
return UV__ERR(errno);
}