Description of problem: When more than 512 scsi devices are presented to the system, the /proc reports "out of memory". In this scenario, 1024 scsi devices were presented to the system. About 896 dfevices were reported in /sys/block. When attempting to 'cat /proc/scsi/scsi', the system reported "proc : out of memory" Version-Release number of selected component (if applicable): Tested on RHEL 4 U2 kernel Kernel - 2.6.9-22.EL, i686, smp How reproducible: Happens everytime. Steps to Reproduce: 1. Present 1024 devices to the system 2. Scan the HBA's in the system 3. cat /proc/scsi/scsi Problem is seen. Actual results: Proc filesystem reports out of memory. System memory still reports over 2GB of unused RAM space. Expected results: /proc/scsi/scsi should report all the scsi devices. Sysfs should report block devices for all the LUNS seen. The system should operate fine under normal load. Additional info: We would also like to know what the current number of LUNS RHEL 4 U2 supports and what is planned for RHEL 4 U3