Re: [Freedos-user] Command prompt returns without commands executing
Blair Campbell schreef: the data from XMS... There might be some code which decides about whether restore-from-XMS is needed and which is too optimistic. But maybe I am totally wrong about that whole swap/overwrite topic... From what I can tell it always swaps back from XMS and there is no other memory block that I am aware of. Would your changes to FreeCOM be worthwile to be published at the same time as 2038 (in other words to be included as a new FreeCOM version, included with 2038 release) ?. Bernd -- Crystal Reports #45; New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty#45;free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Command prompt returns without commands executing
Hi Alex, On Sun, 08 Mar 2009 16:20:40 +0100, I waved a wand and this message magically appears in front of Eric Auer: Indeed a very annoying bug in FreeCOM 0.84 but nobody has yet found a way to predict WHEN it happens. If you can find a way to make it happen at a more specific time than after a while, we could use a debugger to find out what exactly happens when things break. Note that only running com/exe/... (external commands) breaks, you can typically still run internal commands like DIR. Is this the same bug that you are experiencing? Smells like a stack overflow somewhere, methinks, Another option might be overwriteable part of FreeCOM overwritten but FreeCOM failed to notice...? Background: It moves some data to the end of some memory block and when you run a DOS app which does not overwrite that block then FreeCOM can avoid having to restore the data from XMS... There might be some code which decides about whether restore-from-XMS is needed and which is too optimistic. But maybe I am totally wrong about that whole swap/overwrite topic... If the problem can be avoided by not loading EMM386, the cause might be that EMM386 allows some area to be used by DOS (and freecom) as UMB while that area has contents changed by BIOS or because of some hardware activity (sound, network, usb, disk access etc etc)...? Eric -- Crystal Reports #45; New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty#45;free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Command prompt returns without commands executing
the data from XMS... There might be some code which decides about whether restore-from-XMS is needed and which is too optimistic. But maybe I am totally wrong about that whole swap/overwrite topic... From what I can tell it always swaps back from XMS and there is no other memory block that I am aware of. If the problem can be avoided by not loading EMM386, the cause might be that EMM386 allows some area to be used by DOS (and freecom) as UMB while that area has contents changed by BIOS or because of some hardware activity (sound, network, usb, disk access etc etc)...? Eric -- Crystal Reports #45; New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty#45;free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user -- Crystal Reports #45; New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty#45;free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Command prompt returns without commands executing
On Sun, 08 Mar 2009 16:20:40 +0100, I waved a wand and this message magically appears in front of Eric Auer: Indeed a very annoying bug in FreeCOM 0.84 but nobody has yet found a way to predict WHEN it happens. If you can find a way to make it happen at a more specific time than after a while, we could use a debugger to find out what exactly happens when things break. Note that only running com/exe/... (external commands) breaks, you can typically still run internal commands like DIR. Is this the same bug that you are experiencing? Smells like a stack overflow somewhere, methinks, -- http://www.munted.org.uk Fearsome grindings. -- ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
[Freedos-user] Command prompt returns without commands executing
I'm a computer technician, and am interested in FreeDOS because I often perform low-level operations on large disks (copying data, fixing file structures.) So far I'm impressed with FreeDOS -- it seems to have all the important features of the commercial DOSses, and the fact that it's currently being developed is a plus. Unfortunately, I've got the same problem on two completely different machines, and I can't find any reference to it except for a post on alt.os.free-dos last year that was never answered. I'm using the FreeDOS 1.0 distribution CD for developers. When I push F3 immediately after booting, garbage characters display. When FreeDOS has been running for a while, the command prompt will return without the command executing. Rebooting will fix this for a while. I tried eliminating all use of high memory and UMB. The problem persists. Not loading a memory manager can make the problem take longer to occur. I can't isolate the problem to a particular line in FDCONFIG.SYS or FDAUTO.BAT. I tried using Rugxulo's floppy distribution (disk 1) which is based on a later kernel -- no difference. The first computer is a tower with an Intel SE440BX2 mainboard, P3/550, 256 MB RAM, and an 80GB drive with a 40GB FAT32 partition. The second computer is a Compaq Armada 3500 notebook, P2/366, 128 MB RAM, 6GB HDD with FAT32. Both computers run Windows 98SE just fine. The disks were originally formatted with Windows 98 SE. They now boot to MetaKern. The tower passes MEMTEST86. There's not a lot on the internet about this, but I can't be the only one this has happened to! Any help would be appreciated. - - Shane _ Express your personality in color! Preview and select themes for Hotmail®. http://www.windowslive-hotmail.com/LearnMore/personalize.aspx?ocid=TXT_MSGTX_WL_HM_express_032009#colortheme-- Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Command prompt returns without commands executing
On Sunday 08 March 2009 14:40, Shane Baggs wrote: When I push F3 immediately after booting, garbage characters display. When FreeDOS has been running for a while, the command prompt will return without the command executing. Rebooting will fix this for a while. Hi, I experienced similar troubles in the past. It appeared finally that the EMM manager I was using was not-so-compatible with my chipset hardware. Upgrading to the latest JEMM386 fixed all my problems. :-) To upgrade your FreeDOS system easily, you can use FDUPDATE. This program will check in what versions your local packages are, and upgrade them using the repository at http://www.viste-family.net/mateusz/fdupdate/ Of course, it requires a network card with a working packet driver. Best regards, Mateusz Viste -- You'll find my public OpenPGP key at http://www.viste-family.net/mateusz/pub_key signature.asc Description: This is a digitally signed message part. -- Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
