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[dm-devel] Fail to mkfs after multipath runs



Hi all,

   I have setuped a multipath enviornment as follows:
   (S/W)
	Linux distribution â RHEL 4
	Linux kernel --- 2.6.10 or later (kernel.org)
	QLogic driver version â 8.00.00b21
	Multipath I/O kernel patch â 2.6.10-rc1-udm1
	Multipath I/O tools â multipath-tools-0.4.3 
	Udev version â v045

    (H/W) 
          2 QLogic ISP2312 dual port FC HBA
	Emulex 375 Fiber Channel switch( 2 ports are connected to JBOD)
	Adaptec Fiber Channel JBOD

     First, I edit /etc/multipath.conf to add alias for sda and sdc.

     Then, 
             multipathd
             multipath  
             mkfs /udev/disk1 -t ext3

      Now, sda is formating and sometimes some error messages appeared on screen:

#################
	mke2fs 1.35 (28-Feb-2004)
	max_blocks 4294967295, rsv_groups = 0, rsv_gdb = 1024
	Filesystem label=
	OS type: Linux
	Block size=4096 (log=2)
	Fragment size=4096 (log=2)
	4447744 inodes, 8891620 blocks
	444581 blocks (5.00%) reserved for the super user
	First data block=0
	Maximum filesystem blocks=12582912
	272 block groups
	32768 blocks per group, 32768 fragments per group
	16352 inodes per group
	Superblock backups stored on blocks:
        32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
        4096000, 7962624

	Writing inode tables: done
	inode.i_blocks = 98312, i_size = 4243456
	Creating journal (8192 blocks): done
	Writing superblocks and filesystem accounting information: 1:0:0:0: sg_io failed
	 status 0x0 0x2 0x0 0x0
	1:0:0:0: Unable to get INQUIRY vpd 1 page 0x0.
	pb getting path info, free
	1:0:1:0: sg_io failed status 0x0 0x1 0x0 0x0
	1:0:1:0: Unable to get INQUIRY vpd 1 page 0x0.
	pb getting path info, free
	1:0:2:0: sg_io failed status 0x0 0x1 0x0 0x0
.......
#############################

In the meanwhile, I can get some error messages from dmesg as follows:
############################
qla2300 0000:07:01.1: Performing ISP error recovery - ha= c2314250.
SCSI error : <1 0 0 0> return code = 0x20000
end_request: I/O error, dev sdd, sector 42731920
qla2300 0000:07:01.0: LIP reset occured (f7f7).
qla2300 0000:07:01.0: LIP occured (f7f7).
qla2300 0000:07:01.1: Parity error -- HCCR=5cb0.
qla2300 0000:07:01.0: LIP reset occured (f7f7).
qla2300 0000:07:01.0: LIP occured (f7f7).
qla2300 0000:07:01.1: Performing ISP error recovery - ha= c2314250.
############################

Any comments for it?
Thanx.

-Aaron 


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