DOS ain't dead - JEMM(EX) and too much XMSHANDLES problem

JEMM(EX) and too much XMSHANDLES problem (Announce)

posted by RayeR , CZ, 12.03.2026, 01:54
(edited by RayeR on 12.03.2026, 02:40)

The last step was JemmEx loaded: http://rayer.g6.cz/1tmp/jemmex-stepping.jpg

Later I found that even with lower number of xmshandles (stepped down by 48, 32, 24, 16) it cause crash when start some DJGPP compiled programs (that loads cwsdpmi).
Also I randomly found an old backup copy of JEMMEX 5.78 from year 2012 on that HDD and it runs stable on this machine, even with xmshandles=64. Maybe xmshandles problem is just a side effect of some other issue introduced in newer versions. Here's xmsstat with that old ver, XMS handle table located at diff.addr, also regions addr. differs...
XMS call address: d000:64 XMS version: 3.0, driver version: 3.29 HMA handled by XMS host, HMA is allocated v2 free memory largest/total (kB): 65535/65535 v3 free memory largest/total (kB): 1833240/1833240, highest addr: 7ffcffff XMS handle table at d000:a0, handle cnt/size=64/10 XMS handle array at d000:a8 no handle region size(kB) locks flags ------------------------------------------------------------ 1 a8 000110000- 000149fff 232 1 2 used 2 b2 00014a000- 010189fff 262400 1 2 used 3 bc 01018a000- 07ffcffff 1833240 0 1 free ------------------------------------------------------------ 2095872 free handles: 61 no free UMBs available

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DOS gives me freedom to unlimited HW access.

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Complete thread:

AweMidi - a Dos32Awe alternative - Japheth, 18.02.2026, 08:38 (Announce)
- AweMidi - a Dos32Awe alternative - Japheth, 23.02.2026, 08:13
- AweMidi - a Dos32Awe alternative - RayeR, 02.03.2026, 06:45
  - AweMidi - a Dos32Awe alternative - Japheth, 02.03.2026, 14:34
    - AweMidi - a Dos32Awe alternative - RayeR, 02.03.2026, 18:32
- JEMM(EX) and too much XMSHANDLES problem - RayeR, 09.03.2026, 04:28
  - JEMM(EX) and too much XMSHANDLES problem - Japheth, 09.03.2026, 12:54
    - JEMM(EX) and too much XMSHANDLES problem - RayeR, 09.03.2026, 15:00
    - JEMM(EX) and too much XMSHANDLES problem - RayeR, 10.03.2026, 02:12
      - JEMM(EX) and too much XMSHANDLES problem - Japheth, 10.03.2026, 08:44
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 10.03.2026, 14:20
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 11.03.2026, 03:44
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 11.03.2026, 07:51
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 12.03.2026, 01:54
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 12.03.2026, 08:11
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 12.03.2026, 14:03
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 12.03.2026, 15:18
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 12.03.2026, 16:36
        JEMM(EX) and too much XMSHANDLES problem - bretjohn, 12.03.2026, 23:35
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 13.03.2026, 02:30
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 13.03.2026, 08:43
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 13.03.2026, 15:07
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 14.03.2026, 02:47
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 14.03.2026, 03:57
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 16.03.2026, 21:57
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 17.03.2026, 12:05
        JEMM(EX) and too much XMSHANDLES problem - RayeR, 17.03.2026, 13:39
        JEMM(EX) and too much XMSHANDLES problem - Japheth, 17.03.2026, 17:46