[CentOS] Problems with Open-iSCSI and Infortrend A16E-G2130-4

Dear Srs,

I'm getting this error when trying to connect to a Infortrend A16E- 
G2130-4 storage vía iSCSI.

> Apr 29 10:24:40 vz-10 kernel: scsi1 : iSCSI Initiator over TCP/IP
> Apr 29 10:24:41 vz-10 kernel:   Vendor: IFT       Model: A16E- 
> G2130-4      Rev: 361F
> Apr 29 10:24:41 vz-10 kernel:   Type:   Direct- 
> Access                      ANSI SCSI revision: 04
> Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: 629145600 512-byte  
> hdwr sectors (322123 MB)
> Apr 29 10:24:41 vz-10 kernel: sdb: Write Protect is off
> Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: drive cache: write back
> Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: 629145600 512-byte  
> hdwr sectors (322123 MB)
> Apr 29 10:24:41 vz-10 kernel: sdb: Write Protect is off
> Apr 29 10:24:41 vz-10 kernel: SCSI device sdb: drive cache: write back
> Apr 29 10:24:41 vz-10 iscsid: connection1:0 is operational now
> Apr 29 10:24:44 vz-10 udevd-event[23432]: wait_for_sysfs: waiting  
> for '/sys/devices/platform/host1/session1/target1:0:0/1:0:0:0/ 
> ioerr_cnt' failed
> Apr 29 10:25:06 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:25:10 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:25:36 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:25:39 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:26:05 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:26:09 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:26:34 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:26:38 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:27:03 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:27:07 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:27:32 vz-10 kernel:  sdb:<6>sd 1:0:0:0: SCSI error:  
> return code = 0x00020000
> Apr 29 10:27:32 vz-10 kernel: end_request: I/O error, dev sdb,  
> sector 0
> Apr 29 10:27:32 vz-10 kernel: Buffer I/O error on device sdb,  
> logical block 0
> Apr 29 10:27:32 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:27:36 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)
> Apr 29 10:28:02 vz-10 iscsid: Nop-out timedout after 15 seconds on  
> connection 1:0 state (3). Dropping session.
> Apr 29 10:28:05 vz-10 iscsid: connection1:0 is operational after  
> recovery (2 attempts)

The problem appears to be related to udevd-event? The system is  
running CentOS 5.1, with kernel 2.6.18-53.1.14.el5PAE, and "iscsi- 
initiator-utils-6.2.0.865-0.8.el5".

It's a strange problem.. I have no errors with CentOS 4.6, what can  
be the problem? Thanks!!

Regards,

--
Santi Saez