> Eric: In your initial report, you say that TDSK fails as > soon as you have 512 MB RAM - however, your DEVICEHIGH line > always selects a TDSK size of 8 MB, so...? Maybe some other > problem? Cannot see a 512 MB RAM-exist-limit there, only a > (for normal sector size) 32 MB ramdisk-size limit...?
Following the above private email from Eric I decided to run a few tests. The conclusion is that on my system tdsk will crash FreeDos at boot time if some older Q drivers are loaded before. With the latest Q drivers (qxumbpci & qxhimem) tdsk loads ok. System Specs: Athlon AMD64, 1.5 GB RAM. ------------ Fdconfig.sys - the following lines are global to all tests: FILES=50 BREAK=ON STACKS=9,256 LASTDRIVE=Z BUFFERS=20,0 NUMLOCK=OFF DOS=HIGH,UMB DOSDATA=UMB ------------ Test #1: older Q drives with tdsk, FreeDos crashes at boot time. DEVICE=D:\FDOS\BIN\QHMBOOT.SYS /T7 DEVICE=D:\FDOS\BIN\QDBOOT.SYS /R /W DEVICE=D:\FDOS\BIN\UMBPCI.SYS DEVICEHIGH=D:\FDOS\BIN\QDREL.SYS DEVICEHIGH=D:\FDOS\BIN\QHIMEM.SYS /N128 /T7 DEVICEHIGH=D:\FDOS\BIN\QCDROM.SYS /D:CDROM1 /UF /I /L /X DEVICEHIGH=D:\FDOS\BIN\CDRCACHE.SYS CDROM1 CDRCACH$ 12 DEVICEHIGH=D:\FDOS\BIN\TDSK.EXE 8192 DEVICEHIGH=D:\FDOS\BIN\NANSI.SYS /S INSTALLHIGH=D:\FDOS\BIN\LBACACHE.COM 8192 -> error in fdconfig.sys SHELL=C:\COMMAND.COM /P=C:\FDAUTO.BAT -> dos memory corrupt, first_mcb=0273 ------------ Test #2: older Q drives with srdisk, no problems DEVICE=D:\FDOS\BIN\QHMBOOT.SYS /T7 DEVICE=D:\FDOS\BIN\QDBOOT.SYS /R /W DEVICE=D:\FDOS\BIN\UMBPCI.SYS DEVICEHIGH=D:\FDOS\BIN\QDREL.SYS DEVICEHIGH=D:\FDOS\BIN\QHIMEM.SYS /N128 /T7 DEVICEHIGH=D:\FDOS\BIN\QCDROM.SYS /D:CDROM1 /UF /I /L /X DEVICEHIGH=D:\FDOS\BIN\CDRCACHE.SYS CDROM1 CDRCACH$ 12 DEVICEHIGH=D:\FDOS\BIN\SRDXMS.SYS DEVICEHIGH=D:\FDOS\BIN\NANSI.SYS /S INSTALLHIGH=D:\FDOS\BIN\LBACACHE.COM 8192 SHELL=C:\COMMAND.COM /P=C:\FDAUTO.BAT ------------ Test #3: latest Q drives with tdsk, no problems DEVICE=D:\FDOS\BIN\QXUMBPCI.SYS DEVICE=D:\FDOS\BIN\QXHIMEM.SYS /N128 /T7 DEVICEHIGH=D:\FDOS\BIN\QCDROM.SYS /D:CDROM1 /UF /I /L /X DEVICEHIGH=D:\FDOS\BIN\CDRCACHE.SYS CDROM1 CDRCACH$ 12 DEVICEHIGH=D:\FDOS\BIN\TDSK.EXE 8192 DEVICEHIGH=D:\FDOS\BIN\NANSI.SYS /S INSTALLHIGH=D:\FDOS\BIN\LBACACHE.COM 8192 SHELL=C:\COMMAND.COM /P=C:\FDAUTO.BAT ------------ Test #4: latest Q drives with srdisk, no problems DEVICE=D:\FDOS\BIN\QXUMBPCI.SYS DEVICE=D:\FDOS\BIN\QXHIMEM.SYS /N128 /T7 DEVICEHIGH=D:\FDOS\BIN\QCDROM.SYS /D:CDROM1 /UF /I /L /X DEVICEHIGH=D:\FDOS\BIN\CDRCACHE.SYS CDROM1 CDRCACH$ 12 DEVICEHIGH=D:\FDOS\BIN\SRDXMS.SYS DEVICEHIGH=D:\FDOS\BIN\NANSI.SYS /S INSTALLHIGH=D:\FDOS\BIN\LBACACHE.COM 8192 SHELL=C:\COMMAND.COM /P=C:\FDAUTO.BAT ------------ PS: I know there are countless other configurations possible but I won't be able to run any more test at this time. Lester. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
