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due to a change in golang-1.14 and it's changes to make go funcs with tight loops preemptive, signals are now getting "through" that never were before.
From the golang-1.14 announce:
Goroutines are now asynchronously preemptible. As a result, loops without function calls no longer potentially deadlock the scheduler or significantly delay garbage collection. This is supported on all platforms except windows/arm, darwin/arm, js/wasm, and plan9/*.
A consequence of the implementation of preemption is that on Unix systems, including Linux and macOS systems, programs built with Go 1.14 will receive more signals than programs built with earlier releases. This means that programs that use packages like syscall or golang.org/x/sys/unix will see more slow system calls fail with EINTR errors. Those programs will have to handle those errors in some way, most likely looping to try the system call again. For more information about this see man 7 signal for Linux systems or similar documentation for other systems.
Fixes #5483
Signed-off-by: Brent Baude <bbaude@redhat.com>
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Add pkg/signal to deal with parts of signal processing and translating
signals from string to numeric representations. The code has been
copied from docker/docker (and attributed with the copyright) but been
reduced to only what libpod needs (on Linux).
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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When stopping signal handling (e.g., to properly handle ^C) we are also
closing the signal channel. We should really return from the go-routine
instead of continuing and risking double-closing the channel which leads
to a panic.
Fixes: #5034
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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this is the third round of preparing to use the golangci-lint on our
code base.
Signed-off-by: baude <bbaude@redhat.com>
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Signed-off-by: baude <bbaude@redhat.com>
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build a podman-remote binary for windows that allows users to use the
remote client on windows and interact with podman on linux system.
Signed-off-by: baude <bbaude@redhat.com>
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