From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 22 Apr 2025 12:09:12 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1u7AYy-0040O7-28 for lore@lore.pengutronix.de; Tue, 22 Apr 2025 12:09:12 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1u7AYx-0006K1-U5 for lore@pengutronix.de; Tue, 22 Apr 2025 12:09:12 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Date:Message-Id:Subject:References:In-Reply-To:To: From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=vIGY6gG5oVe8/LhSRb/i+5pIPb6wrfMsj5Gqu5yMrVE=; b=4iOO9KcmlAg9tdAg3LNy2q37Qp i/HnNT7gxUadCyzf9MOrQmWyrmf8CasNpjxpbaoCWBDkirsYarE5s1RW99kkCs7cbfkjTRsMFem3S H7LhrhRV8f9KuN2/rqB8t75nXxky0IKAmJ2rvpQROz58+q6jDTJYkEmF+W8+LOxqc3n6RB8cP3pH9 /+xdWmxuMLl9x3OuXbL/lALdvv1Es+KLtFHt1WaBOyfK8IXbUyThnMQXMcUei11imXJK5IijI5TmH AWsn8PwKIrQs8MwUkiezk1bAjmLr4IWcztBufI5cn2dHVwaWYOdAC2aJ95IJkhYMbuSV92aMDQBw3 MK8EqtzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u7AYa-00000006glB-3hWM; Tue, 22 Apr 2025 10:08:48 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u79Tr-00000006Snl-3J5l for barebox@lists.infradead.org; Tue, 22 Apr 2025 08:59:53 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1u79Tq-0008UG-BC; Tue, 22 Apr 2025 10:59:50 +0200 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1u79Tq-001WSB-0V; Tue, 22 Apr 2025 10:59:50 +0200 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1u79Tq-00Ccfq-0H; Tue, 22 Apr 2025 10:59:50 +0200 From: Sascha Hauer To: barebox@lists.infradead.org, Ahmad Fatoum In-Reply-To: <20250422075658.221273-1-a.fatoum@pengutronix.de> References: <20250422075658.221273-1-a.fatoum@pengutronix.de> Message-Id: <174531239008.3008570.11688336061526384698.b4-ty@pengutronix.de> Date: Tue, 22 Apr 2025 10:59:50 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.12.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250422_015951_831177_03F3DC3C X-CRM114-Status: UNSURE ( 7.92 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.4 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH] virtio: make more robust in face of misbehaving devices X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Tue, 22 Apr 2025 09:56:58 +0200, Ahmad Fatoum wrote: > The virtio device drivers assume at a number of places that polling > indefinitely with virtqueue_get_buf will eventually succeed. > > It was observed that sometimes after a warm reboot inside QEMU, barebox > finds itself inside an infinite poll loop. > > This needs to be further analyzed, of course, but it's already and > improvement for barebox to recover from such situations by returning an > error code or at least printing an error message. > > [...] Applied, thanks! [1/1] virtio: make more robust in face of misbehaving devices https://git.pengutronix.de/cgit/barebox/commit/?id=1e84d6ffc4af (link may not be stable) Best regards, -- Sascha Hauer