Blame SOURCES/0736-udev-call-poll-again-after-killing-the-spawned-proce.patch
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From c34ec3588a40e595bb837f3c12e44808c7cd20fd Mon Sep 17 00:00:00 2001
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From: Michal Sekletar <msekleta@redhat.com>
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Date: Wed, 1 May 2019 15:52:42 +0200
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Subject: [PATCH] udev: call poll() again after killing the spawned process
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Later we check .revents of pfd. Hence we need to initialize it properly
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and to do that we need to call poll() once again because previously it
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exited twice with timeout and hence left pfd uninitialized. For the
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third time it should return immediately since we killed the spawned
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process with SIGKILL.
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Related: #1697909
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---
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src/udev/udev-event.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
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index 7fe64f04a4..07b82d093e 100644
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--- a/src/udev/udev-event.c
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+++ b/src/udev/udev-event.c
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@@ -593,6 +593,10 @@ static int spawn_wait(struct udev_event *event,
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if (fdcount == 0) {
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log_error("timeout: killing '%s' ["PID_FMT"]", cmd, pid);
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kill(pid, SIGKILL);
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+
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+ fdcount = poll(pfd, 1, 1000);
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+ if (fdcount <= 0)
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+ continue;
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}
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}
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