Mailing List Archive: [Bug 3405] clientloop's client_wait_until_can_do_something uses 100 % CPU with ssh 2> >({exec 1>&2})

[Bug 3405] clientloop's client_wait_until_can_do_something uses 100 % CPU with ssh 2> >({exec 1>&2})

Mar 30, 2022, 2:26 PM

Post #1 of 3 (173 views)

https://bugzilla.mindrot.org/show_bug.cgi?id=3405

Damien Miller <djm@mindrot.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |harri@afaics.de

--- Comment #3 from Damien Miller <djm@mindrot.org> ---
*** Bug 3411 has been marked as a duplicate of this bug. ***

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[Bug 3405] clientloop's client_wait_until_can_do_something uses 100 % CPU with ssh 2> >({exec 1>&2}) [ In reply to ]

bugzilla-daemon at mindrot

Mar 30, 2022, 2:27 PM

Post #2 of 3 (173 views)

Permalink

https://bugzilla.mindrot.org/show_bug.cgi?id=3405

Damien Miller <djm@mindrot.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Blocks| |3395
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED

--- Comment #4 from Damien Miller <djm@mindrot.org> ---
This has been fixed in git head and will be in the openssh-9.0 release
that is due very soon.

commit d6556de1db0822c76ba2745cf5c097d9472adf7c
Author: djm@openbsd.org <djm@openbsd.org>
Date: Wed Mar 30 21:10:25 2022 +0000

upstream: fix poll() spin when a channel's output fd closes without

data in the channel buffer. Introduce more exact packing of channel
fds into
the pollfd array. fixes bz3405 and bz3411; ok deraadt@ markus@

OpenBSD-Commit-ID: 06740737849c9047785622ad5d472cb6a3907d10

Referenced Bugs:

https://bugzilla.mindrot.org/show_bug.cgi?id=3395
[Bug 3395] Tracking bug for openssh-9.0
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[Bug 3405] clientloop's client_wait_until_can_do_something uses 100 % CPU with ssh 2> >({exec 1>&2}) [ In reply to ]

bugzilla-daemon at mindrot

Apr 7, 2022, 7:12 PM

Post #3 of 3 (163 views)

Permalink

https://bugzilla.mindrot.org/show_bug.cgi?id=3405

Damien Miller <djm@mindrot.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |CLOSED

--- Comment #5 from Damien Miller <djm@mindrot.org> ---
closing bug resolved during openssh-9.0 release cycle

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