RHEL 4 system gives error "mptscsi: ioc0: attempting task abort!"

Issue

• A RHEL 4.4 guest  running on ESX 4.0.2 gives error pertaining to mptscsi and mptbase in dmesg log:

  mptscsi: ioc0: attempting task abort! (sc=f7d3aac0) 
  scsi0 : destination target 0, lun 0 
          command = Write (10) 00 02 4c fb 5f 00 00 08 00 
  mptbase: ioc0: IOCStatus(0x004b): SCSI IOC Terminated 
  mptscsi: ioc0: task abort: SUCCESS (sc=f7d3aac0) 
  mptscsi: ioc0: attempting task abort! (sc=dbe60b00) 
  scsi0 : destination target 0, lun 0 
          command = Write (10) 00 02 72 e7 27 00 00 08 00 
  mptbase: ioc0: IOCStatus(0x004b): SCSI IOC Terminated 
  mptscsi: ioc0: task abort: SUCCESS (sc=dbe60b00) 
  mptscsi: ioc0: attempting task abort! (sc=e47843c0) 
  scsi0 : destination target 0, lun 0 
          command = Write (10) 00 02 72 e8 8f 00 00 20 00 
  mptbase: ioc0: IOCStatus(0x004b): SCSI IOC Terminated 
  mptscsi: ioc0: task abort: SUCCESS (sc=e47843c0) 
  mptscsi: ioc0: attempting task abort! (sc=c0506800) 
  scsi0 : destination target 0, lun 0 
          command = Write (10) 00 02 e6 e7 87 00 00 08 00 
  mptbase: ioc0: IOCStatus(0x004b): SCSI IOC Terminated 
  mptscsi: ioc0: task abort: SUCCESS (sc=c0506800) 
  mptscsi: ioc0: attempting task abort! (sc=dbe60200) 
  scsi0 : destination target 0, lun 0 
          command = Write (10) 00 00 72 80 14 00 00 08 00 
  mptbase: ioc0: IOCStatus(0x004b): SCSI IOC Terminated 
  mptscsi: ioc0: task abort: SUCCESS (sc=dbe60200) 
  mptscsi: ioc0: attempting task abort! (sc=e35a2340) 
  scsi0 : destination target 0, lun 0 
  

• In the past this system has gone in read-only mode. Reboot temporary solved the problem. Does the above messages report a  system problem?