net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* #37795

bcmills · 2020-03-11T14:43:29Z

--- FAIL: TestDialParallelSpuriousConnection (1.49s)
    dial_test.go:456: got read tcp6 [::1]:59891->[::1]:59893: i/o timeout; want EOF
FAIL
FAIL	net	4.495s

2020-03-10T00:24:30-08dee51/darwin-arm64-corellium
2020-03-02T15:39:23-12d02e7/darwin-arm64-corellium
2020-02-29T17:02:40-74f8983/darwin-arm64-corellium
2020-02-24T16:39:52-3093959/darwin-arm64-corellium
2020-01-31T20:18:54-1b7fefc/darwin-arm64-corellium
2020-01-23T21:01:12-ace25f8/darwin-arm-mg912baios
2020-01-19T14:04:09-8e0be05/darwin-arm-mg912baios
2019-10-30T00:41:31-47efbf0/darwin-arm-mg912baios

Forked from #34495.

CC @mikioh @bradfitz @ianlancetaylor @Zenly

The text was updated successfully, but these errors were encountered:

bcmills · 2020-03-11T14:47:21Z

I think everything, but especially the network, is just slow on this builder. (Compare #37322, #35692, #35498, #34837.)

(CC @toothrot @cagedmantis @andybons @dmitshur, since they may suggest a builder-based solution to this cluster of flakes.)

gopherbot · 2020-03-11T15:04:40Z

Change https://golang.org/cl/222959 mentions this issue: net: use t.Deadline instead of an arbitrary read deadline in TestDialParallelSpuriousConnection

bcmills · 2020-04-09T15:45:30Z

Looks like it's a true deadlock, not just a flaky test. With the new deadline logic, the test is now hanging for nearly a full 3 minutes:

2020-04-09T01:14:53-7a4247c/darwin-arm64-corellium
2020-04-08T18:37:36-8b4cbcc/darwin-arm64-corellium
2020-04-03T14:12:25-e18a5ba/darwin-arm64-corellium
2020-04-02T15:05:15-1dbcbcf/darwin-arm64-corellium
2020-03-23T20:31:13-5b897ec/darwin-arm64-corellium

bcmills · 2020-04-09T15:47:08Z

The apparent deadlock in net suggests a possible connection to #34837. (Perhaps a platform bug on Corellium?)

bcmills · 2020-10-20T01:47:54Z

https://storage.googleapis.com/go-build-log/2ab992ae/ios-arm64-corellium_eb14298d.log

bcmills · 2020-10-20T01:49:11Z

bcmills · 2020-10-20T01:50:46Z

CC @cherrymui

bcmills · 2022-01-05T16:18:05Z

greplogs --dashboard -md -l -e 'FAIL: TestDialParallelSpuriousConnection.*\n.*i/o timeout' --since=2020-10-20

2020-10-20T00:59:23-a505312/ios-arm64-corellium

Looks fixed to me: none of these in over a year.

bcmills · 2022-03-30T16:11:31Z

Looks fixed to me: none of these in over a year.

...aaand it's back. 😞

greplogs --dashboard -md -l -e 'FAIL: TestDialParallelSpuriousConnection.*\n.*i/o timeout' --since=2022-01-05

2022-03-28T19:34:01-e84a370/darwin-arm64-11_0-toothrot
2022-03-22T16:02:31-3870705/darwin-arm64-11_0-toothrot

bcmills · 2022-03-30T16:12:43Z

darwin/arm64 is a first class port, so this is a release blocker for Go 1.19.

bcmills · 2022-05-06T13:46:53Z

greplogs -l -e 'FAIL: TestDialParallelSpuriousConnection.*\n.*i/o timeout' --since=2022-03-29
2022-05-05T18:47:55-14fed2c/darwin-arm64-11_0-toothrot
2022-03-31T19:46:55-12acf9b/darwin-arm64-11_0-toothrot

bcmills · 2022-05-16T14:58:23Z

Looks like a slightly different failure mode on darwin-arm64-12, but I'm guessing the root cause is either the same or related: the test failed after almost exactly one minute.

--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:52097->127.0.0.1:52268: read: connection reset by peer; want EOF
FAIL
FAIL	net	67.297s

greplogs -l -e 'FAIL: TestDialParallelSpuriousConnection ' --since=2022-05-06
2022-05-13T14:14:49-d4dd7ac/darwin-arm64-12

dmitshur · 2022-05-18T13:46:57Z

Running the test 100'000 times on a darwin/amd64 machine did not reproduce the problem:

$ go test -count=100000 -timeout=10h -run=TestDialParallelSpuriousConnection net
ok  	net	10214.424s

Running the same on a darwin/arm64 machine seems to reproduce after a while:

$ go test -count=100000 -timeout=10h -run=TestDialParallelSpuriousConnection net
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:63672->127.0.0.1:63674: read: connection reset by peer; want EOF
[...]
FAIL
FAIL	net	14609.803s
FAIL

Complete output

$ go test -count=100000 -timeout=10h -run=TestDialParallelSpuriousConnection net
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:63672->127.0.0.1:63674: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:54481->[::1]:54482: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:55077->[::1]:55078: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:57926->127.0.0.1:57928: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:63669->[::1]:63670: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:51744->[::1]:51746: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:55708->127.0.0.1:55710: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.15s)
    dial_test.go:445: got read tcp6 [::1]:65484->[::1]:65485: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:49742->127.0.0.1:49744: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:51501->[::1]:51503: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:52425->127.0.0.1:52427: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:60940->127.0.0.1:60942: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:54599->127.0.0.1:54600: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:51920->127.0.0.1:51922: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:59242->127.0.0.1:59244: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:56513->[::1]:56514: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.13s)
    dial_test.go:445: got read tcp6 [::1]:58734->[::1]:58735: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:59301->[::1]:59302: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.55s)
    dial_test.go:445: got read tcp4 127.0.0.1:63063->127.0.0.1:63065: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:64137->[::1]:64138: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:65499->[::1]:65501: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:53488->127.0.0.1:53489: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:53839->[::1]:53840: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:60746->[::1]:60747: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:55986->[::1]:55988: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:57475->127.0.0.1:57477: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.19s)
    dial_test.go:445: got read tcp4 127.0.0.1:59726->127.0.0.1:59728: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:60149->127.0.0.1:60151: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.57s)
    dial_test.go:445: got read tcp4 127.0.0.1:60743->127.0.0.1:60745: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:62183->[::1]:62184: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:49745->[::1]:49746: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:51823->127.0.0.1:51824: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:52795->127.0.0.1:52796: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:56493->[::1]:56495: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:56652->127.0.0.1:56653: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:57838->[::1]:57839: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:59977->127.0.0.1:59979: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:62461->[::1]:62462: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:53526->[::1]:53528: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:50751->127.0.0.1:50753: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:51924->127.0.0.1:51926: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:55363->[::1]:55365: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:58250->[::1]:58251: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:60293->[::1]:60295: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:61091->127.0.0.1:61092: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.36s)
    dial_test.go:445: got read tcp4 127.0.0.1:63470->127.0.0.1:63472: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:63614->127.0.0.1:63616: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:49644->127.0.0.1:49646: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:50178->127.0.0.1:50179: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:54815->127.0.0.1:54817: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:56958->127.0.0.1:56960: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:57606->[::1]:57607: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:62890->127.0.0.1:62891: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:64451->[::1]:64452: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:51542->127.0.0.1:51544: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:52580->127.0.0.1:52582: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:52769->[::1]:52770: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:53588->[::1]:53590: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:57702->127.0.0.1:57704: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.14s)
    dial_test.go:445: got read tcp6 [::1]:59139->[::1]:59140: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:60891->127.0.0.1:60892: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:61188->127.0.0.1:61189: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:61320->[::1]:61321: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp4 127.0.0.1:63618->127.0.0.1:63619: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:63942->127.0.0.1:63944: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:65073->[::1]:65074: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:62988->127.0.0.1:62990: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:53143->[::1]:53144: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:57219->[::1]:57220: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.11s)
    dial_test.go:445: got read tcp6 [::1]:62580->[::1]:62581: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp6 [::1]:63111->[::1]:63112: read: connection reset by peer; want EOF
--- FAIL: TestDialParallelSpuriousConnection (60.10s)
    dial_test.go:445: got read tcp4 127.0.0.1:55112->127.0.0.1:55113: read: connection reset by peer; want EOF
FAIL
FAIL	net	14609.803s
FAIL

Tested with Go 1.18.2, both with macOS 12 (though slightly different minor versions).

neild · 2022-06-07T21:09:42Z

This looks like a real failure.

I've reproduced it in a simpler test case:

func TestDialRace(t *testing.T) {
        handlerc := make(chan struct{})
        time.Sleep(10 * time.Millisecond) // slow down to avoid address exhaustioin

        readDeadline := time.Now().Add(70 * time.Second)
        handler := func(ls *localServer, ln Listener) {
                defer close(handlerc)
                c, err := ln.Accept()
                if err != nil {
                        t.Fatal(err)
                }
                var b [1]byte
                if _, err := c.Read(b[:]); err != io.EOF {
                        t.Errorf("got %v; want %v", err, io.EOF)
                }
                c.Close()
        }
        ls := newLocalServer(t, "tcp")
        defer ls.teardown()
        if err := ls.buildup(handler); err != nil {
                t.Fatal(err)
        }

        d := Dialer{}
        c, err := d.Dial("tcp", ls.Listener.Addr().String())
        if err != nil {
                t.Fatal(err)
        }
        c.Close()

        <-handlerc
}

After running for a few minutes on my darwin/arm64 laptop:

=== RUN   TestDialRace
    dial_test.go:530: got read tcp4 127.0.0.1:54421->127.0.0.1:54423: read: connection reset by peer; want EOF
--- FAIL: TestDialRace (60.01s)

The client dials and immediately closes a connection. The listener accepts and reads from the connection. On rare occasions, the read hangs for 60 seconds before returning "connection reset by peer".

neild · 2022-06-07T21:47:03Z

This appears to be a macOS bug. I've reproduced it in C.

Client:

#include <arpa/inet.h>
#include <netinet/in.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>

int main() {
        int i = 0;
        while (1) {
                int sock = socket(PF_INET, SOCK_STREAM, 0);
                if (sock < 0) {
                        perror("socket");
                        return 1;
                }

                struct sockaddr_in raddr;
                raddr.sin_family = AF_INET;
                raddr.sin_port = htons(2020);
                if (inet_aton("127.0.0.1", &raddr.sin_addr) <= 0) {
                        perror("inet_aton");
                        return 1;
                }

                if (connect(sock, (struct sockaddr *)&raddr, sizeof(raddr)) < 0) {
                        perror("connect");
                        return 1;
                }

                close(sock);

                printf("%d\n", i);
                i++;
        }
}

Server:

#include <arpa/inet.h>
#include <netinet/in.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>

int main() {
        int sock = socket(PF_INET, SOCK_STREAM, 0);
        if (sock < 0) {
                perror("socket");
                return 1;
        }

        struct sockaddr_in laddr;
        laddr.sin_family = AF_INET;
        laddr.sin_port = htons(2020);
        laddr.sin_addr.s_addr = 0;
        if (bind(sock, (struct sockaddr *)&laddr, sizeof(laddr)) < 0) {
                perror("bind");
                return 1;
        }

        if (listen(sock, 10) < 0) {
                perror("listen");
                return 1;
        }

        while (1) {
                struct sockaddr_in sin;
                socklen_t slen = sizeof(sin);
                int c = accept(sock, (struct sockaddr *)&sin, &slen);
                if (c < 0) {
                        perror("accept");
                        return 1;
                }

                char buf[1];
                if (read(c, buf, 1) < 0) {
                        perror("read");
                        return 1;
                }

                close(c);
        }
}

Run server. Run client. After a small number of iterations (takes milliseconds on my laptop), the server will hang in the read() call for 60 seconds before the call fails with ECONNRESET.

ianlancetaylor · 2022-06-07T22:14:48Z

Cool, thanks. I sent an e-mail to a couple of contacts at Apple.

gopherbot · 2022-06-08T18:57:45Z

Change https://go.dev/cl/411155 mentions this issue: net: avoid darwin_arm64 bug in TestDialParallelSpuriousConnection

gopherbot · 2022-06-27T18:01:08Z

Change https://go.dev/cl/414534 mentions this issue: net: avoid darwin/arm64 platform bug in TestCloseWrite

On darwin_arm64, reading from a socket at the same time as the other end is closing it will occasionally hang for 60 seconds before returning ECONNRESET. (This is a macOS issue, not a Go issue.) Work around this condition by adding a brief sleep before the read. Fixes #49352 (we hope). Updates #37795. Change-Id: I4052aec21d311d7370550aea9dd7941f39141133 Reviewed-on: https://go-review.googlesource.com/c/go/+/414534 Run-TryBot: Bryan Mills <[email protected]> Auto-Submit: Bryan Mills <[email protected]> Reviewed-by: Damien Neil <[email protected]> TryBot-Result: Gopher Robot <[email protected]>

On darwin_arm64, reading from a socket at the same time as the other end is closing it will occasionally hang for 60 seconds before returning ECONNRESET. (This is a macOS issue, not a Go issue.) Work around this condition by adding a brief sleep before the read. Fixes golang#49352 (we hope). Updates golang#37795. Change-Id: I4052aec21d311d7370550aea9dd7941f39141133 Reviewed-on: https://go-review.googlesource.com/c/go/+/414534 Run-TryBot: Bryan Mills <[email protected]> Auto-Submit: Bryan Mills <[email protected]> Reviewed-by: Damien Neil <[email protected]> TryBot-Result: Gopher Robot <[email protected]>

bcmills added OS-Darwin NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. mobile Android, iOS, and x/mobile labels Mar 11, 2020

bcmills added this to the Backlog milestone Mar 11, 2020

gopherbot closed this as completed in cf82fea Mar 11, 2020

bcmills reopened this Apr 9, 2020

bcmills changed the title ~~net: occasional "i/o timeout" it TestDialParallelSpuriousConnection on darwin-arm* builders~~ net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* Apr 9, 2020

bcmills closed this as completed Jan 5, 2022

bcmills reopened this Mar 30, 2022

bcmills added arch-arm64 and removed mobile Android, iOS, and x/mobile labels Mar 30, 2022

bcmills added the release-blocker label Mar 30, 2022

bcmills modified the milestones: Backlog, Go1.19 Mar 30, 2022

dmitshur added the okay-after-beta1 Used by release team to mark a release-blocker issue as okay to resolve either before or after beta1 label Jun 1, 2022

dmitshur assigned neild Jun 1, 2022

joedian added this to Release Blockers Jun 10, 2022

gopherbot removed the okay-after-beta1 Used by release team to mark a release-blocker issue as okay to resolve either before or after beta1 label Jun 10, 2022

gopherbot closed this as completed in 2c52465 Jun 13, 2022

gopherbot moved this to Done in Release Blockers Jun 13, 2022

dmitshur added NeedsFix The path to resolution is known, but the work has not been done. and removed NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. labels Jun 14, 2022

neild mentioned this issue Jun 15, 2022

net: TestCloseWrite failures with "i/o timeout" on darwin/arm64 #49352

Open

rsc unassigned neild Jun 23, 2022

neild mentioned this issue Aug 20, 2022

net: TCP RST handling is unreliable on OSX #50254

Open

bcmills mentioned this issue Sep 8, 2022

net/http: timeout in TestServerHijackGetsBackgroundByte_big #54935

Open

bcmills mentioned this issue Nov 30, 2022

net: TestDialParallelSpuriousConnection failures on darwin/arm64 and ios/arm64 #55214

Open

neild mentioned this issue Mar 15, 2023

net/http: TestTransportDialTLSContext flakes in local testing #59035

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net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* #37795

net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* #37795

bcmills commented Mar 11, 2020

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gopherbot commented Jun 27, 2022

net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* #37795

net: deadlock in TestDialParallelSpuriousConnection on darwin-arm* #37795

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bcmills commented Mar 11, 2020

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