id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 398,Boot with ACPI is unstable,LarsErdmann,pasha,"Configuration: eCS 1.2 R German with all fixes applied ACPI 3.14 APM 1.28 Kernel: @#IBM:14.104a#@_W4 IBM OS/2 Kernel Single CPU Mainboard I have been trying various switches to ACPI, alone and in combination: /FS /VBE /EIS /OS=""Microsoft Windows"" /!NOD /PIC but the boot is unreliable, sometimes it hangs when loading the .SNP files, sometimes when loading the BASEDEVS (.SYS,.ADD.FLT,.DMD) Notes: a.) I have been using /OS=""Microsoft Windows"" as I ran iasl.exe as described in doc and generated .dsl file as described in documentation, find attached. Since it contained a conditional on OS type ""Microsoft Windows"" I thought it would make a difference but it did not b.) /!NOD does not seem to do anything. Even after adding /!NOD, drivers ACPICA$ and OEMHLP$ reside in the same loaded module (Theseus tells me that) and that module is ACPI.PSD. Adding /!NOD I had the expectation that OEMHLP$ would be taken from the kernel module (where it resides per default) but it is not. c.) I am also running WinXP on this machine (via OS/2 bootmanager). Rebooting from WinXP into eCS seems to be problematic. It seems to trigger the boot hang or at least negatively impact it. I guess WinXP leaves ACPI in some state that makes ACPI.PSD unhappy. Find attached the config.sys file, the .dsl file, the ACPI and APM log files. ",defect,closed,major,,ACPI PSD,3.16,fixed,,