Don, in my opinion this is a SHELL bug.
after executing a program (being it command.com or dataperfect), shell does some 'cleanup' code. it simply thinks that all (MZ) memory blocks above SHELL.EXE are leftovers from external execution, and calls DOSfree(). if they are leftover PSPs, the potential environment at psp:[2c] is also freed. now freedos command.com loads it's own environment as high as possible; usually at around 9F9F:0. when SHELL executes an external program, this environment gets freed, and soon after trashed. SHELL bug. case closed. Tom am 6. Juni 2016 um 12:42 schrieben Sie: >>So "all my path variables are intact" means there is probably a memory >>corruption issue somewhere?? > Since this happens on every PC (7 total) that is unlikely; and > this does not happen with the regular DOSes. > I am now using a menu (PowerMenu by Brown Bag Software) with the > %WPSHELL%/C command and our current FreeCOM which is working well. >>You mean "SET" within FDCONFIG.SYS?? > > I have a MENU selection in FDCONFIG.SYS pointing to an IF > "%config%" option in AUTOEXEC.BAT which loads my PowerMenu which > takes over from there, this is the "cleanest" way of resolving the issue that > I have found. >>But yes, FreeCOM has various bugs and needs to be cleaned up and >fixed >>(eventually), but so far nobody has stepped up to do it. > Yeah, we need to prioritize that for 2.0. > > On Mon, Jun 6, 2016 at 4:31 AM, Rugxulo <rugx...@gmail.com> wrote: > Hi, > > On Sat, Jun 4, 2016 at 4:34 AM, Don Flowers <donr...@gmail.com> wrote: >> UPDATE: >> So after three or four loads of shell.exe per session, the strings error >> showed up again (Freecom 0.84) > > Even when using "/MSG /P"? So what is the implication, that there's a > memory leak in FreeCOM somewhere? I wouldn't be too surprised. > >> and Freecom 0.80 has some issues (2GB max shown on HD, OGN not recognized) > > Testing an old release for comparison? Why not test 0.82pl3 from SF.net? > > > https://sourceforge.net/projects/freedos/files/FreeCOM/082pl3%20%28use%20xmsswap%20for%20386%2B%20PC%29/ > > But yes, FreeCOM has various bugs and needs to be cleaned up and fixed > (eventually), but so far nobody has stepped up to do it. > >> I discovered one other alternative that seems to be working - I set a >> %config% variable (SET WPSHELL=C:\DP23\SHELL.EXE), > > You mean "SET" within FDCONFIG.SYS?? > >> then %WPSHELL% /C; >> following that I execute a batch file with the same command and the shell >> loads as it should and on exit all my path variables are intact with no >> strings error messages. > > So "all my path variables are intact" means there is probably a memory > corruption issue somewhere?? > > >> On Mon, May 23, 2016 at 5:21 PM, Rugxulo <rugx...@gmail.com> wrote: >>> >>> On Mon, May 23, 2016 at 4:18 PM, Don Flowers <donr...@gmail.com> wrote: >>> > >>> > So /MSG seems to work, more testing needed to be sure, What does this >>> > switch >>> > do, (besides help me of course)? >>> >>> http://help.fdos.org/en/hhstndrd/base/command.htm >>> >>> "/MSG Stores all error messages in memory (requires /P as well)." > > > ------------------------------------------------------------------------------ > What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic > patterns at an interface-level. Reveals which users, apps, and protocols are > consuming the most bandwidth. Provides multi-vendor support for NetFlow, > J-Flow, sFlow and other flows. Make informed decisions using capacity > planning reports. > https://ad.doubleclick.net/ddm/clk/305295220;132659582;e > > _______________________________________________ > Freedos-user mailing list > Freedos-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freedos-user > Mit freundlichen Grüßen/Kind regards Tom Ehlert +49-241-79886 ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
