Problem
DCP can get stuck while stopping a process on Windows. If Windows reuses a PID, an older process can still list that number as its parent. This can create a circular relationship when DCP looks up descendants.
GetProcessTree does not check for stale parent relationships or previously visited processes, so it keeps following the cycle until shutdown times out.
Reproduction
Reproduced with DCP 0.26.2 on Windows x64 by repeatedly stopping, starting, and restarting an Aspire worker. Restart failed on cycle 12; the other two runners completed 30 cycles each.
The captured process identities show the cycle. The shutdown helper used roughly one CPU core until its 15-second deadline expired, and the CLI returned exit code 16.
Failing CI job · Captured diagnostics
Tracked in microsoft/aspire#20103.
Expected behavior
Process-tree traversal should terminate and include only valid descendants. Check process creation times to reject stale parent relationships, and guard against revisiting processes.
A cycle guard alone is insufficient: it could still leave unrelated processes in the list to kill. No product fix has been applied yet.
Problem
DCP can get stuck while stopping a process on Windows. If Windows reuses a PID, an older process can still list that number as its parent. This can create a circular relationship when DCP looks up descendants.
GetProcessTreedoes not check for stale parent relationships or previously visited processes, so it keeps following the cycle until shutdown times out.Reproduction
Reproduced with DCP 0.26.2 on Windows x64 by repeatedly stopping, starting, and restarting an Aspire worker. Restart failed on cycle 12; the other two runners completed 30 cycles each.
The captured process identities show the cycle. The shutdown helper used roughly one CPU core until its 15-second deadline expired, and the CLI returned exit code 16.
Failing CI job · Captured diagnostics
Tracked in microsoft/aspire#20103.
Expected behavior
Process-tree traversal should terminate and include only valid descendants. Check process creation times to reject stale parent relationships, and guard against revisiting processes.
A cycle guard alone is insufficient: it could still leave unrelated processes in the list to kill. No product fix has been applied yet.