From: Konstantin Khorenko <khorenko@virtuozzo.com>
To: "Denis V. Lunev" <den@openvz.org>
Cc: devel@openvz.org
Subject: Re: [Devel] [PATCH hci-8.1 0/2] ve/vtty: wait for a closing CT tty in the kernel, drop the EAGAIN return
Date: Tue, 03 Nov 2026 16:54:58 +0100 [thread overview]
Message-ID: <179372129814.2495604.15444700675719579090.b4-ty@b4> (raw)
In-Reply-To: <20261102171504.3809155-1-den@openvz.org>
On Mon, 02 Nov 2026 18:15:02 +0100, Denis V. Lunev wrote:
> ve/vtty: wait for a closing CT tty in the kernel, drop the EAGAIN return
>
> Konstantin pointed out that the applied "ve/vtty: fix console attach
> failing with EBUSY while the CT closes the tty" fixes the race only
> for a vzctl which retries on EAGAIN, and every vzctl in the field
> does not. Following his suggestion, this series replaces it with a
> wait inside vtty_open_master(), as tty_open() does since
> 7f22f6c935cd. Patch 1 reverts the EAGAIN return, patch 2 waits for
> the closing pair. The vzctl change "vzctl console: retry opening a
> CT tty the CT is still closing" is no longer needed.
>
> [...]
Applied to branch-rh10-6.12.0-211.52.1.22.x.vz10-ovz, will be released in rh10-6.12.0-211.52.1.22.17.vz10, thanks!
[1/2] Revert "ve/vtty: fix console attach failing with EBUSY while the CT closes the tty"
https://bitbucket.org/virtuozzocore/vzkernel.vzs/commits/a47aff57a16b
[2/2] ve/vtty: wait for a closing CT tty instead of failing the console attach
https://bitbucket.org/virtuozzocore/vzkernel.vzs/commits/7377f791d287
--
Konstantin Khorenko,
Virtuozzo Linux Kernel Team
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prev parent reply other threads:[~2026-11-03 15:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-29 22:35 [Devel] [PATCH hci-8.1] ve/vtty: fix console attach failing with EBUSY while the CT closes the tty Denis V. Lunev
2026-10-29 22:38 ` no-reply
2026-11-02 10:41 ` Konstantin Khorenko
2026-11-02 10:42 ` Konstantin Khorenko
2026-11-02 15:17 ` Konstantin Khorenko
2026-11-02 17:15 ` [Devel] [PATCH hci-8.1 0/2] ve/vtty: wait for a closing CT tty in the kernel, drop the EAGAIN return Denis V. Lunev
2026-11-02 17:15 ` [Devel] [PATCH hci-8.1 1/2] Revert "ve/vtty: fix console attach failing with EBUSY while the CT closes the tty" Denis V. Lunev
2026-11-02 17:48 ` no-reply
2026-11-02 17:15 ` [Devel] [PATCH hci-8.1 2/2] ve/vtty: wait for a closing CT tty instead of failing the console attach Denis V. Lunev
2026-11-02 17:51 ` no-reply
2026-11-02 18:09 ` Vladimir Riabchun
2026-11-03 12:42 ` Denis V. Lunev
2026-11-03 15:54 ` Konstantin Khorenko [this message]
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