> -----Original Message-----
> From: Olaf Hering [mailto:[email protected]]
> Sent: Tuesday, January 29, 2013 10:28 AM
> To: KY Srinivasan
> Cc: [email protected]
> 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
>
>
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