From: no-reply@sashiko.virtuozzo.com
To: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>,
svt-core@virtuozzo.com
Cc: andrey.drobyshev@virtuozzo.com, den@openvz.org
Subject: Re: [PATCH QEMU HCI-8.0 v6 02/12] usb-host: add migration blocker for CPR modes #VSTOR-137800
Date: Tue, 6 Oct 2026 10:36:54 +0000 [thread overview]
Message-ID: <010701a110c9ab29-0abb75a8-e461-4014-800c-d6558d7d618d-000000@eu-central-1.amazonses.com> (raw)
In-Reply-To: <20261006-usb-host_v3-v6-2-8688ec9576d1@virtuozzo.com>
> We're about to add support for CPR migration to usb-host in the upcoming
> commits. Right now CPR is crashing with usb-host devices. Let's add
> migration blocker upfront, for both cpr-exec and cpr-transfer. The
> blocker is added unconditionally, so that we refuse CPR migration instead
> of crashing on it. That is for the sake of bisectability of the upcoming
> commits. It is going to be lifted (conditioned) in a following patch
> once CPR support is added. Also, blocker is added at the end of
> usb_host_realize(), so we have to cleanup all the side effects done
> earlier in .realize() in case migrate_add_blocker_modes() fails.
>
> Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.vzint.dev/#/patchset/20261006-usb-host_v3-v6-0-8688ec9576d1@virtuozzo.com?part=2
next prev parent reply other threads:[~2026-10-06 10:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-06 10:34 [PATCH QEMU HCI-8.0 v6 00/12] usb-host: support CPR migration Andrey Drobyshev
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 01/12] usb-host: don't leak hostdev FD on open failure #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:37 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 02/12] usb-host: add migration blocker for CPR modes #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:36 ` no-reply [this message]
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 03/12] usb-host: preserve hostdev FD during CPR migration #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:40 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 04/12] usb-host: factor out usb_host_reap_xfers() #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:38 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 05/12] usb-host: drain in-flight URBs across CPR #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:48 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 06/12] usb-host: re-issue drained URBs if CPR is aborted #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:46 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 07/12] usb-host: skip product-string read on CPR incoming #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:47 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 08/12] usb-host: hand off the device across cpr-transfer #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:54 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 09/12] usb: migrate the interface altsetting #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:52 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 10/12] usb-host: reconfigure endpoints on CPR incoming #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:57 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 11/12] hcd-xhci: resync isochronous endpoints after CPR #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:57 ` no-reply
2026-10-06 10:34 ` [PATCH QEMU HCI-8.0 v6 12/12] usb-host: make CPR migration blocker conditional #VSTOR-137800 Andrey Drobyshev
2026-10-06 10:58 ` no-reply
2026-10-06 11:49 ` [PATCH QEMU HCI-8.0 v6 00/12] usb-host: support CPR migration Andrey Drobyshev
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