> -----Original Message----- > From: Olaf Hering [mailto:olaf@xxxxxxxxx] > Sent: Tuesday, January 29, 2013 10:28 AM > To: KY Srinivasan > Cc: linux-scsi@xxxxxxxxxxxxxxx > Subject: storvsc loops with No Sense messages > > > KY, > > while attempting to install the upcoming openSuSE 12.3 in a hyper-v > guest (1 vcpu, 512MB) hosted on Windows Server 2012 I see a hanging > guest after formating the root partition, when the installer starts to > write files to it. After booting the install kernel with > 'ignore_loglevel' I see a flood of the "No Sense" messages shown below. > I can reproduce it every time with 12.3. > > The sglist init patch does not fix it for me. > > Hannes did many storage related backports for SLES11 SP3, and sometimes > the installer hangs at similar points during a fresh SP3 install. > > The same procedure works fine on Windows Server 2008. > > Any ideas what 2012 does differently? It happens with a plain 3.7.n > kernel. I will try 3.8-rc now, and see if it happens as well. > > Olaf > > ... > [ 0.000000] Linux version 3.7.5-5.home_olh_12_3-vanilla (geeko@buildhost) > (gcc version 4.7.2 20130108 [gcc-4_7-branch revision 195012] (SUSE Linux) ) #1 > SMP Mon Jan 28 12:39:46 UTC 2013 (d9a9e6d) > [ 0.000000] Command line: quiet panic=9 sysrq=yes start_shell splash=silent > vga=0x317 video=1024x768 console=ttyS0,115200 console=tty1 ignore_loglevel > initrd=sl/12.3/initrd-x86_64 BOOT_IMAGE=sl/12.3/linux-x86_64 > ... > [ 7.938806] scsi2 : storvsc_host_t > [ 7.940709] scsi 2:0:0:0: Direct-Access Msft Virtual Disk 1.0 PQ: 0 ANSI: 4 > [ 7.943952] sd 2:0:0:0: Attached scsi generic sg1 type 0 > > [ 7.946440] sd 2:0:0:0: [sda] 20971520 512-byte logical blocks: (10.7 GB/10.0 GiB) > [ 7.949485] sd 2:0:0:0: [sda] Write Protect is off > [ 7.951231] sd 2:0:0:0: [sda] Mode Sense: 0f 00 00 00 > [ 7.953105] sd 2:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't > support DPO or FUA > [ 7.955269] scsi3 : storvsc_host_t > [ 7.957027] scsi scan: INQUIRY result too short (5), using 36 > [ 7.958786] scsi scan: INQUIRY result too short (5), using 36 > [ 7.961292] input: Microsoft Vmbus HID-compliant Mouse as > /devices/virtual/input/input3 > [ 7.965400] hid-generic 0006:045E:0621.0001: input: <UNKNOWN> HID v0.01 > Mouse [Microsoft Vmbus HID-compliant Mouse] on > [ 7.971872] hv_netvsc: hv_netvsc channel opened successfully > [ 7.974574] hv_netvsc vmbus_0_11: Device MAC 00:15:5d:02:51:02 link state up > [ 7.985086] sda: sda1 sda2 > [ 7.986725] sd 2:0:0:0: [sda] Attached SCSI disk > ... > [ 156.205185] Adding 746492k swap on /dev/sda1. Priority:-1 extents:1 > across:746492k > ... > [ 156.478186] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: > acl,user_xattr > [ 161.459523] hv_storvsc vmbus_0_1: cmd 0x41 scsi status 0x2 srb status 0x6 > [ 161.462157] sd 2:0:0:0: [sda] > [ 161.463135] Sense Key : No Sense [current] > [ 161.464983] sd 2:0:0:0: [sda] > [ 161.465899] Add. Sense: No additional sense information > [ 161.468211] hv_storvsc vmbus_0_1: cmd 0x41 scsi status 0x2 srb status 0x6 > [ 161.475766] sd 2:0:0:0: [sda] > [ 161.476728] Sense Key : No Sense [current] > [ 161.478284] sd 2:0:0:0: [sda] > [ 161.479441] Add. Sense: No additional sense information > [ 161.481311] hv_storvsc vmbus_0_1: cmd 0x41 scsi status 0x2 srb status 0x6 > [ 161.484477] sd 2:0:0:0: [sda] > [ 161.485422] Sense Key : No Sense [current] > [ 161.486977] sd 2:0:0:0: [sda] > [ 161.487920] Add. Sense: No additional sense information > > ... and so it goes on until the VM is powered off. Olaf, I have not seen this. The SRB status indicates it is an illegal request; the command is WRITE_SAME. I will take a look. K. Y > > ��.n��������+%������w��{.n�����{������ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f
