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x/build/cmd/runqemubuildlet: qemu failed to find an available port: address already in use #58361

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prattmic opened this issue Feb 6, 2023 · 1 comment
Open

x/build/cmd/runqemubuildlet: qemu failed to find an available port: address already in use #58361

prattmic opened this issue Feb 6, 2023 · 1 comment
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@prattmic
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Builders x/build issues (builders, bots, dashboards) NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. OS-Darwin
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@prattmic
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prattmic commented Feb 6, 2023

Occasionally the Darwin builders get stuck in a loop unable to start guests due to an "address already in use" error (for the VNC server port, presumably).

The immediate cause is that there is another instance of QEMU still running which is using that port. Manually killing that QEMU instance gets things unstuck.

My best guess is that this extra instance of QEMU was hung and runqemubuildlet's heartbeat timed out, but something is wrong with the heartbeat cancellation, which thus didn't actually fully kill the stuck QEMU.
@prattmic prattmic added OS-Darwin NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. labels Feb 6, 2023
@prattmic prattmic added this to the Unreleased milestone Feb 6, 2023
@prattmic prattmic self-assigned this Feb 6, 2023
@gopherbot gopherbot added the Builders x/build issues (builders, bots, dashboards) label Feb 6, 2023
@prattmic prattmic mentioned this issue Feb 28, 2023
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@dmitshur
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CC @golang/release.

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