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Lunev" In-Reply-To: <20260831151637.1335671-1-den@openvz.org> References: <20260831151637.1335671-1-den@openvz.org> Date: Mon, 31 Aug 2026 19:32:58 +0200 Message-Id: <178819757869.1127482.15682637207725805037.b4-review@b4> X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=629; i=khorenko@virtuozzo.com; h=from:subject:message-id; bh=3P23i1A0AuAmhRxDk153M3+lWOHWZFyL76+mU1C1Nz0=; b=owEBbQKS/ZANAwAKAVGWCkf5YVwqAcsmYgBqlbrNEIaNO6JAyh6Sl8lYZl/oYs2Kg50XLtY1D 3CkuZc/O8CJAjMEAAEKAB0WIQRWD23IPcXT0GO9CCxRlgpH+WFcKgUCapW6zQAKCRBRlgpH+WFc Kka/D/9bsxKkhQ5aG3ko6izERFW8lB87NclKyhPM6u4wX3QH2TnH7ML85sTPWKFrtLNZhuGWfi1 +luTeQ7Jh62mQrHbppjelnOBGp+yIM08dRkVN5n18FXKxRr2voRXtcsf47FmHmA0/3+h911ojtD XTsARId0Kh96iRQkJOZCF7VOSVbDxsHQnmx5AHvRL7k6Sek7vu8fHx8ZkVm14er24mF6BdTCEZo TFv0VYbxkvqAGjRcNbqzd/o6PQDiUGlIKyy5bbG+/XOtONhKeTtm/Nu6KFA0lq6V2Yy2T/5HjO+ 0AQphyzmoaMfz6PZ9m8EOn7ynRnyxOXH4hQjjFHFiSd+JdRVXL5yTDGtcv+ZlsW0I/1MqATNHhJ ffBl0nbQ2cxNcUT1iQMnU03lQvG+zA3bFlqpy+s7x1XlfUydqP4ZbNRMbdTJf6waToUxuKXFiKC RtEibnY1dksTJgUjqG1RDG0N8prBmebpaAnwXyJmjZSZ3+xywSjXOm8oPqY7qi2iYsmrBu61tGk 5CInDTLtYCGsqpt5aiXCC6yWb1gmFglIwLR9HJH2Nxst2hT+RdbqhQ9VnRGhYSCnfRShX0gMVe1 EV/Gqr2TrUqoeYVtYYIoxzVFgPcA3qO5Lj9XhBWJUr34W4osO1K+Xswlwl+a7jcXTkNPV1wUJJf zSZLLUg05O179Pw== X-Developer-Key: i=khorenko@virtuozzo.com; a=openpgp; fpr=560F6DC83DC5D3D063BD082C51960A47F9615C2A X-OZ-Fwd: true Cc: devel@openvz.org Subject: Re: [Devel] [PATCH 1/1] ms/virtio_ring: fix infinite loop in virtnet_poll_cleantx when device is broken X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org On Mon, 31 Aug 2026 17:16:37 +0200, Denis V. Lunev wrote: > virtnet_poll_cleantx() contains a do-while loop that cleans up > transmitted TX buffers and calls virtqueue_enable_cb_delayed() to check > whether more buffers need processing. When the virtio backend stops > responding during guest reboot, used->idx is never updated, so > virtqueue_enable_cb_delayed() always returns false and the loop never > terminates. Then it will block reboot process, and the guest will hang. > > [...] Reviewed-by: Konstantin Khorenko -- Konstantin Khorenko _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel