megaraid aborting problem (RHEL 3WS)

[Stas Nikiforov <stas@itam.nsc.ru>]

Hi,
I have a RHEL 3WS (RocksCluster) distribution
(kernel 2.4.21-15ELsmp) with megaraid2 2.10.3 driver.
The following is reported by dmesg.

    megaraid: v2.10.3 (Release Date: Thu Apr  8 16:16:05 EDT 2004)
    megaraid: [713G:G117] detected 1 logical drives.
    scsi0 : LSI Logic MegaRAID 713G 254 commands 16 targs 4 chans 7 luns
    blk: queue c3620e18, I/O limit 4294967295Mb (mask
0xffffffffffffffff)
    scsi0: scanning scsi channel 0 for logical drives.
    Vendor: MegaRAID  Model: LD 0 RAID5 1192G  Rev: 713G
    Type:   Direct-Access                      ANSI SCSI revision: 02

Under heavy io I get the following messages reported by dmesg.
Could somebody tell me what is going wrong and what should I do next?

Thanks in advance,
Stas.

megaraid: critical hardware error!
megaraid: aborting-1441961 cmd=2a <c=0 t=0 l=0>
megaraid: 1441961:76, driver owner.
megaraid: Waiting for 8 commands to flush: iter:0
megaraid: Waiting for 8 commands to flush: iter:1000
megaraid: Waiting for 8 commands to flush: iter:2000
...
megaraid: Waiting for 8 commands to flush: iter:60000
megaraid: critical hardware error!
megaraid: reset-1441957 cmd=2a <c=0 t=0 l=0>
megaraid: reservation reset failed.
megaraid: Waiting for 8 commands to flush: iter:0
megaraid: aborted cmd 160098[41] complete.
megaraid: aborted cmd 160099[48] complete.
megaraid: aborted cmd 16009a[75] complete.
megaraid: aborted cmd 16009b[69] complete.
megaraid: aborted cmd 16009c[4d] complete.
megaraid: aborted cmd 16009d[6b] complete.
megaraid: aborted cmd 16009e[77] complete.
megaraid: aborted cmd 16009f[47] complete.
megaraid: reset sequence successfully completed.
megaraid: reset-1441965 cmd=2a <c=0 t=0 l=0>
megaraid: reservation reset failed.
megaraid: reset sequence successfully completed.