Issue

• After updating to Red Hat Enterprise Linux 6.3 to kernel 2.6.32-431.20.3 system gets unresponsive when high I/O is occurring
• System gets unresponsive and restarted by NMI watchdog
• Server is crashing every night after firmware and kernel upgrade
• Why am I seeing frame drops in messages:

Mar 14 01:08:13 server kernel: VxVM vxdmp V-5-3-0 memory allocation failed for size =0x43000
Mar 14 01:08:13 server kernel:
Mar 14 01:08:13 server kernel: VxVM vxdmp V-5-3-0 memory allocation failed for size =0x43000
Mar 14 01:08:13 server kernel:
Mar 14 02:08:10 server kernel: qla2xxx [0000:05:00.1]-381f:2: Dropped frame(s) detected (0x29000 of 0x80000 bytes).
Mar 14 02:08:10 server kernel: qla2xxx [0000:05:00.1]-3822:2: FCP command status: 0x15-0x0 (0x70000) nexus=2:0:0 portid=2dcdc0 oxid=0x2a cdb=280000bceac000040000 len=0x80000 rsp_info=0x0 resid=0x0 fw_resid=0x29000.
Mar 14 02:08:10 server kernel: sd 2:0:0:0: [sde] Unhandled error code
Mar 14 02:08:10 server kernel: sd 2:0:0:0: [sde] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
Mar 14 02:08:10 server kernel: sd 2:0:0:0: [sde] CDB: Read(10): 28 00 00 bc ea c0 00 04 00 00