nab, your next tree is broken. I have here file backend setup with
tcm_loopback. Since commit 8f9f44f8 in your for-next branch of
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
I get
SCSI subsystem initialized
Rounding down aligned max_sectors from 4294967295 to 8388600
scsi0 : TCM_Loopback
scsi 0:0:1:0: Direct-Access LIO-ORG FILEIO 4.0 PQ: 0
ANSI: 5
sd 0:0:1:0: [sda] 61441 512-byte logical blocks: (31.4 MB/30.0 MiB)
sd 0:0:1:0: [sda] Write Protect is off
sd 0:0:1:0: [sda] Mode Sense: 2f 00 00 00
sd 0:0:1:0: [sda] Write cache: disabled, read cache: enabled, doesn't
support DPO or FUA
sda: sda1
sd 0:0:1:0: [sda] Attached SCSI disk
sd 0:0:1:0: Attached scsi generic sg0 type 0
SGI XFS with security attributes, no debug enabled
XFS (sda1): Mounting Filesystem
XFS (sda1): Ending clean mount
vfs_readv() returned -14 for non S_ISBLK
sd 0:0:1:0: [sda]
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:1:0: [sda]
Sense Key : Illegal Request [current]
sd 0:0:1:0: [sda]
<<vendor>> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0
sd 0:0:1:0: [sda] CDB:
Read(10): 28 00 00 00 30 3d 00 00 80 00
end_request: I/O error, dev sda, sector 12349
vfs_readv() returned -14 for non S_ISBLK
sd 0:0:1:0: [sda]
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
sd 0:0:1:0: [sda]
Sense Key : Illegal Request [current]
sd 0:0:1:0: [sda]
<<vendor>> ASC=0x80 ASCQ=0x0ASC=0x80 ASCQ=0x0
sd 0:0:1:0: [sda] CDB:
Read(10): 28 00 00 00 30 3d 00 00 08 00
end_request: I/O error, dev sda, sector 12349
sha1sum: /mnt/sdb/libc-2.11.2.so: Input/output error
It wirks one commit before the commit I mentioned. The commit in
question is:
commit 8f9f44f8957b262de717a48269a5ceca36c2b504
Author: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Date: Mon Oct 1 23:29:49 2012 -0700
tcm_loop: Convert I/O path to use target_submit_cmd_map_sgls
This patch converts tcm_loop to use target_submit_cmd_map_sgls() for
I/O submission and mapping of pre-allocated SGL memory from incoming
scsi_cmnd -> se_cmd descriptors.
This includes removing the original open-coded fabric uses of target
core callers to support transport_generic_map_mem_to_cmd() between
target_setup_cmd_from_cdb() and transport_handle_cdb_direct() logic.
(v2: Use renamed target_submit_cmd_map_sgls)
Reported-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Sebastian
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