From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42752) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cJU8I-0002ZU-Qh for qemu-devel@nongnu.org; Tue, 20 Dec 2016 18:47:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cJU8F-0003vW-NB for qemu-devel@nongnu.org; Tue, 20 Dec 2016 18:47:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:33690) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cJU8F-0003vN-EJ for qemu-devel@nongnu.org; Tue, 20 Dec 2016 18:47:43 -0500 Date: Wed, 21 Dec 2016 07:47:38 +0800 From: Fam Zheng Message-ID: <20161220234738.GB2994@lemon> References: <3dce9a63-6472-54c2-3455-52521a0a3651@redhat.com> <89d9fe09-3bdc-3c84-3ddf-f9462adb2068@fam-schranz.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: <89d9fe09-3bdc-3c84-3ddf-f9462adb2068@fam-schranz.de> Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] Strange/wrong behavior with iSCSI Tape devices in QEMU 2.8.0-rc4 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Holger Schranz Cc: John Snow , qemu-devel@nongnu.org, mueller-ralf@t-online.de On Tue, 12/20 17:53, Holger Schranz wrote: > Hi John, >=20 > sorry or late. I will reproduce it and send you the QEMU command line > instruction. >=20 > About the guest system: LINUX SuSE SLES11 SP4. >=20 > About 2.7.0 Release: it doesn't run without the patches for the issue: > [Qemu-devel] [PATCH] iscsi: Fix divide-by-zero regression on raw SG dev= ices >=20 > (I can't find the issue number). Are there any related message showing up in guest dmesg? Is it possible to do a git bisect? Also, does it work if you login with host side iscsi client (iscsiadm) an= d pass the /dev/sgX to QEMU? Fam >=20 > Best regards >=20 > Holger >=20 > Am 19.12.2016 um 18:30 schrieb John Snow: > >=20 > > On 12/19/2016 04:05 AM, Holger Schranz wrote: > > > # Strange/wrong behavior in QEMU 2.8.0-rc4 > > >=20 > > > After update from QEMU 2.6.2 to 2.8.0-rc4 the tape devices > > > and the corresponding medium changer are no longer available > > > in the VM quest system. > > >=20 > > > The tape devices and the media changer are declared in the > > > xml-file for libvirt. Both, tape drives and medium changer > > > are avalilable via iSCSI. > > >=20 > > > In a first rough investigation the login in iSCSI runs well > > > but in QEMU, it seems the devices doesn't reported to the VM-Quest. > > >=20 > > > ------------------ > > >=20 > > > Best regards > > >=20 > > > Holger > > >=20 > > Hi, thanks for the report; do you have a QEMU command line that we ca= n > > use to help reproduce the problem? It's easiest if we can cut libvirt > > out of the loop. > >=20 > > What is the architecture and version of the guest? > >=20 > > Lastly, it looks like this worked in our 2.7 release if I'm reading y= ou > > correctly, so this is a change for the 2.8 release as far as you can > > tell, right? > >=20 > > --js > >=20 > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D > > >=20 > > > XML-Declration: > > >=20 > > > . > > > . > > > . > > >=20 > > > > > > > > > > > > > > >=20 > > > > > > > > > > > name=3D'iqn.2008-09.net.fsc:server.LT260_61003/4'> > > > > > > > > >
> > > > > >=20 > > > > > > > > name=3D'iqn.2008-09.net.fsc:server.LT260_61003/5'> > > > > > > > > >
> > > > > >=20 > > > > > > > > > > > name=3D'iqn.2008-09.net.fsc:server.LT260_61003/6'> > > > > > > > > >
> > > > > >=20 > > > > > > > > > > > name=3D'iqn.2008-09.net.fsc:server.LT60_61005/3'> > > > > > > > > >
> > > > > >=20 > > > > > > > > name=3D'iqn.2008-09.net.fsc:server.LT60_61005/4'> > > > > > > > > >
> > > > > > . > > > . > > > . > > >=20 > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D > > >=20 > > >=20 > > > correct behavior/Result inside the VM-Quest together with QEMU/KVM = 2.6.2 > > > / 2.7.0 > > > -- > > > (VCSTCS82:A)IUP1:~ # lsscsi -g > > > [0:2:0:0] disk FTS PRAID EP420i 4.25 /dev/sda /dev/= sg0 > > > [3:0:0:0] cd/dvd QEMU QEMU DVD-ROM 2.5+ /dev/sr0 /dev/= sg1 > > > [8:0:2:1] tape HP Ultrium 5-SCSI 0001 /dev/st3 /dev/= sg6 > > > [8:0:2:2] tape HP Ultrium 5-SCSI 0001 /dev/st2 /dev/= sg5 > > > [8:0:2:3] mediumx FUJITSU ETERNUS LT260 6.20 - /dev/sg4 > > > [8:0:2:4] tape HP Ultrium 6-SCSI 23AB /dev/st1 /dev/= sg3 > > > [8:0:2:5] tape HP Ultrium 6-SCSI 23AB /dev/st0 /dev/= sg2 > > > [11:0:0:0] disk FUJITSU ETERNUS_DXL 0000 /dev/sdb /dev/= sg7 > > > [11:0:0:2] disk FUJITSU ETERNUS_DXL 0000 /dev/sdh /dev/= sg13 > > > [11:0:0:3] disk FUJITSU ETERNUS_DXL 0000 /dev/sdg /dev/= sg12 > > > [11:0:0:4] disk FUJITSU ETERNUS_DXL 0000 /dev/sdf /dev/= sg11 > > > [11:0:0:5] disk FUJITSU ETERNUS_DXL 0000 /dev/sde /dev/= sg10 > > > [11:0:0:6] disk FUJITSU ETERNUS_DXL 0000 /dev/sdd /dev/= sg9 > > > [11:0:0:7] disk FUJITSU ETERNUS_DXL 0000 /dev/sdc /dev/= sg8 > > > [11:0:0:15] disk FUJITSU ETERNUS_DXL 0000 /dev/sdi /dev/= sg14 > > > (VCSTCS82:A)IUP1:~ # > > >=20 > > >=20 > > >=20 > > > Wrong behavior/Result inside the VM-Quest together with QEMU/KVM 2.= 8.0-RC4 > > > -- > > > (VCSTCS82:A)IUP1:~ # lsscsi -g > > > [0:2:0:0] disk FTS PRAID EP420i 4.25 /dev/sda /dev/= sg0 > > > [3:0:0:0] cd/dvd QEMU QEMU DVD-ROM 2.5+ /dev/sr0 /dev/= sg1 > > > [11:0:1:0] disk FUJITSU ETERNUS_DXL 0000 /dev/sdj /dev/= sg10 > > > [11:0:1:2] disk FUJITSU ETERNUS_DXL 0000 /dev/sdp /dev/= sg16 > > > [11:0:1:3] disk FUJITSU ETERNUS_DXL 0000 /dev/sdo /dev/= sg15 > > > [11:0:1:4] disk FUJITSU ETERNUS_DXL 0000 /dev/sdn /dev/= sg14 > > > [11:0:1:5] disk FUJITSU ETERNUS_DXL 0000 /dev/sdm /dev/= sg13 > > > [11:0:1:6] disk FUJITSU ETERNUS_DXL 0000 /dev/sdl /dev/= sg12 > > > [11:0:1:7] disk FUJITSU ETERNUS_DXL 0000 /dev/sdk /dev/= sg11 > > > [11:0:1:15] disk FUJITSU ETERNUS_DXL 0000 /dev/sdq /dev/= sg17 > > > (VCSTCS82:A)IUP1:~ # > > >=20 >=20 >=20 > --- > Diese E-Mail wurde von Avast Antivirus-Software auf Viren gepr=FCft. > https://www.avast.com/antivirus >=20 >=20