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cmd/tailscale/cli: prevent concurrent Start calls in 'up'

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Seems to deflake tstest/integration tests. I can't reproduce it
anymore on one of my VMs that was consistently flaking after a dozen
runs before. Now I can run hundreds of times.

Updates #11649
Fixes #7036

Change-Id: I2f7d4ae97500d507bdd78af9e92cd1242e8e44b8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2024-04-16 09:10:50 -07:00
committed by Brad Fitzpatrick
parent 26f9bbc02b
commit 0fba9e7570
3 changed files with 31 additions and 16 deletions
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2
wgengine/magicsock/magicsock_test.go
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@@ -626,7 +626,7 @@ func (localhostListener) ListenPacket(ctx context.Context, network, address stri
}
func TestTwoDevicePing(t *testing.T) {
flakytest.Mark(t, "https://github.com/tailscale/tailscale/issues/1277")
flakytest.Mark(t, "https://github.com/tailscale/tailscale/issues/11762")
l, ip := localhostListener{}, netaddr.IPv4(127, 0, 0, 1)
n := &devices{
m1: l,