From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=outlook.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=E4a+h8zhsQFy46ieIh6Kvn/jOEzS7Fv/bh2/6yR4ys4=; b=Zw5iMHq1ZDShANnKXLNPyvu//hbmyCu8HWmjidkJmbNkRMNOLCO6dQzXS2eNkgASRfxNvlk2gT94S/+QVg17uMfSTaRSZeBw46d+lToTcEalewTyHdxPq8EGVtedrc3Xac4O5JNB5bpDU0DZxe4HOYMkJfyQgtBb6jdrMcr1DDAL/fr9Nn2a57jQi9T3fMoAqe+zY+PpHcEbsM0b4LyrmuSVT0qCeNYqV1MSOHi4PpNVHOoRdfWcUC25utZA/j+C8YttW79VBK9UPpCdI7ROwG1WssORxg+iv55njnjNypPYBrShQ6sbf4hfsDKWQ8eAPwwCf3IFwlMraFdkVDo9+g== From: Prashant Dewan Date: Tue, 24 May 2022 14:29:12 +0000 Message-ID: MIME-Version: 1.0 Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_BY5PR14MB38937584E1C443A7BB3B0BCF86D79BY5PR14MB3893namp_" Subject: [Virtio-fs] vhost_set_vring_kick failed List-Id: Development discussions about virtio-fs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "virtio-fs@redhat.com" --_000_BY5PR14MB38937584E1C443A7BB3B0BCF86D79BY5PR14MB3893namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am trying to setup virtfs using KVM and QEMU. 1. Inside the VM, I do * mount -t virtiofs myfs /dev/myfile --succeeds * cd /dev/myfile -hangs 1. The host logs - qemu-system: Failed to write msg. Wrote -1 instead of 20. May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_kick faile= d: Invalid argument (22) May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds. May 24 14:01:08 device-myhost[644]: qemu-system: vhost VQ 0 ring restore fa= iled: -1: Invalid argument (22) May 24 14:01:08 device-myhost[644]: qemu-system: Error starting vhost: 22 May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds. May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_call faile= d: Resource temporarily unavailable (11) May 24 14:01:08 device-myhost[644]: qemu-system: Failed to set msg fds. May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_call faile= d: Resource temporarily unavailable (11) May 24 14:01:08 device-myhost[644]: qemu-system: Failed to read from slave. 1. Qemu parameters - "-device", "vhost-user-fs-device,queue-size=3D1024,chardev=3Dchar0,tag=3Dmyfs", "-object", "memory-backend-memfd,id=3Dmem,size=3D4G,share=3Don" Any input is appreciated... Thanks --_000_BY5PR14MB38937584E1C443A7BB3B0BCF86D79BY5PR14MB3893namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I am trying to setup virtfs using KVM and QEMU.

  1. Inside the VM, I do 
    1. mount -t virtiofs myfs /dev/myfile  --succeeds
    2. c= d /dev/myfile  -hangs

  1. The host logs - 

 qemu-system: Failed to write msg. Wrote -1 instead of 20.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_vring_kick = failed: Invalid argument (22)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to s= et msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost VQ 0 = ring restore failed: -1: Invalid argument (22)
May 24 14:01:08 device-myhost[644]: qemu-system: Error start= ing vhost: 22
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to s= et msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_v= ring_call failed: Resource temporarily unavailable (11)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to s= et msg fds.
May 24 14:01:08 device-myhost[644]: qemu-system: vhost_set_v= ring_call failed: Resource temporarily unavailable (11)
May 24 14:01:08 device-myhost[644]: qemu-system: Failed to read f= rom slave.

  1.  Qemu parameters -

 "-device",
    "vhost-user-fs-device,queue-size=3D1024,chardev=3Dc= har0,tag=3Dmyfs",
    "-object",
    "memory-backend-memfd,id=3Dmem,size=3D4G,share=3Don"= ;

Any input is appreciated...

Thanks

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