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| author | Olaf Hering <olaf@aepfle.de> | 2013-02-22 00:04:51 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-02-24 13:39:44 +0400 |
| commit | 3e8f4f4065901c8dfc51407e1984495e1748c090 (patch) | |
| tree | 92e76f06fa74cb2ecfdf823342803234a4235c74 /drivers/scsi/mpt2sas/mpt2sas_ctl.c | |
| parent | 98f99a8ac8d92fef74b61e8dd25df934afbbf843 (diff) | |
| download | linux-3e8f4f4065901c8dfc51407e1984495e1748c090.tar.xz | |
[SCSI] storvsc: avoid usage of WRITE_SAME
Set scsi_device->no_write_same because the host does not support it.
Also blacklist WRITE_SAME to avoid (and log) accident usage.
If the guest uses the ext4 filesystem, storvsc hangs while it prints
these messages in an endless loop:
...
[ 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
...
This happens with a guest running on Windows Server 2012, but happens to
work while running on Windows Server 2008. WRITE_SAME isnt really
supported by both versions, so disable the command usage globally.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_ctl.c')
0 files changed, 0 insertions, 0 deletions