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graememe's avatar
graememe
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1 month ago
Solved

VHDL Conditional analysis example

I am experiencing an issue with ip generation in quartus prime pro 25.1. A build stalls when attempting to run either qsys-validate or qsys-generate. Looking in task manager I can see that the JAVA process for these commands has been started but does not appear to be doing anything. It appears to be random on which specific command the build stalls. 

I have also seen it stall when attempting to generate the debug ip during the synthesis stage

I have tried

1 Reinstalling quartus

2 Running on a different computer

Neither have successfully resolved the issue. 

Kind regards,

Graeme 

Compilation
  • KennyT_altera's avatar
    KennyT_altera
    1 month ago

    Kindly check the soln in https://community.altera.com/discussions/quartus-prime/critical-notice-ddm-error--crash-issue-in-quartus%C2%AE-prime-pro-v23-3%E2%80%93v25-3-1-%E2%80%94-act/349761

4 Replies

  • roeekalinsky's avatar
    roeekalinsky
    Icon for Contributor rankContributor
    1 month ago

    I too have observed this phenomenon emerge spontaneously around Jan 11.  I believe it is part of the constellation of symptoms, one of the intermittent failure modes, caused by a broadly affecting Quartus Pro bug discussed in the following thread:

    https://community.altera.com/discussions/quartus-prime/quartus-pro-25-3-crash-using-rhel78/349584/replies/349607

  • graememe's avatar
    graememe
    Icon for New Contributor rankNew Contributor
    1 month ago

    The issues started for me on the 12th January 2026. Builds which I had previously built without error 9th January no longer build

    • KennyT_altera's avatar
      KennyT_altera
      Icon for Super Contributor rankSuper Contributor
      1 month ago

      Kindly check the soln in https://community.altera.com/discussions/quartus-prime/critical-notice-ddm-error--crash-issue-in-quartus%C2%AE-prime-pro-v23-3%E2%80%93v25-3-1-%E2%80%94-act/349761