adabb51311
Add the swapMemorySupport requirement to all tests related to the OOM killer. The --memory option has the subtle side effect of defaulting --memory-swap to double the value of --memory. The OOM killer doesn't kick in until the container exhausts memory+swap, and so without the memory swap cgroup the tests will timeout due to swap being effectively unlimited. Document the default behavior of --memory-swap in the docker run man page. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
30 lines
980 B
Go
30 lines
980 B
Go
// +build !windows
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package main
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import (
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestInspectOomKilledTrue(c *check.C) {
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testRequires(c, DaemonIsLinux, memoryLimitSupport, swapMemorySupport)
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name := "testoomkilled"
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_, exitCode, _ := dockerCmdWithError("run", "--name", name, "--memory", "32MB", "busybox", "sh", "-c", "x=a; while true; do x=$x$x$x$x; done")
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c.Assert(exitCode, checker.Equals, 137, check.Commentf("OOM exit should be 137"))
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oomKilled := inspectField(c, name, "State.OOMKilled")
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c.Assert(oomKilled, checker.Equals, "true")
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}
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func (s *DockerSuite) TestInspectOomKilledFalse(c *check.C) {
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testRequires(c, DaemonIsLinux, memoryLimitSupport, swapMemorySupport)
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name := "testoomkilled"
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dockerCmd(c, "run", "--name", name, "--memory", "32MB", "busybox", "sh", "-c", "echo hello world")
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oomKilled := inspectField(c, name, "State.OOMKilled")
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c.Assert(oomKilled, checker.Equals, "false")
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}
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