PROBLEM: (EMZB83716, QAR 48019) (Patch ID: OSF405-027) ******** The Unix kernel crashes during installation if the memory in the system exceeds 1GB. During driver initialization, a machine check 660 such as the following occurs: Alpha boot: available memory from 0x29be000 to 0x7fffe000 DIGITAL UNIX V4.0 (Rev. 386); Mon May 20 04:41:58 EDT 1996 physical memory = 2048.00 megabytes. available memory = 2006.31 megabytes. using 2618 buffers containing 20.45 megabytes of memory Master cpu at slot 0. Firmware revision: 4.5 PALcode: OSF version 1.21 ibus0 at nexus AlphaServer 2100 5/250 cpu 0 EV-5 4mb b-cache cpu 1 EV-5 4mb b-cache gpc0 at ibus0 pci0 at ibus0 slot 0 tu0: DECchip 21040-AA: Revision: 2.3 Machine Check SYSTEM Fatal Abort pal temp[0-1] = d02cadc77bdecdf9 0000000000000006 pal temp[2-3] = fffffc00004042a0 0000000000004200 pal temp[4-5] = 0000008180000000 0000000380000000 pal temp[6-7] = 0000000198000000 fffffc0000403cf0 pal temp[8-9] = 1f1e161514020100 fffffc0000404010 pal temp[10-11] = fffffc0000407704 fffffc0000403e70 pal temp[12-13] = fffffc0000404210 000ic (cpu 0): System Uncorrectable Machine Check 660 ... PROBLEM: (MCSM715R1) (Patch ID: OSF405-105) ******** This patch fixes a problem that occurs on an AlphaServer 2100A system. When the system is shut down using the "shutdown -r" command, the system will not reboot.