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ktabacchi's avatar
ktabacchi
Icon for New Contributor rankNew Contributor
6 months ago

Why do I intermittently see reboot failure in the u-boot stage when running the Arria 10?

Hello,

We are seeing intermittent failures in u-boot on warm reboot.  

U-Boot version: 2023.01Device: Arria10

To reproduce:

  1. Power on the system and let it boot.
  2. In the shell type the `reboot` command.
  3. U-boot gets stuck at the RAM ECC scrub stage (see output below).

Reproducibility is about 50% of reboots.  We have never seen this in a power on; we have only seen this on reboot during warm reboot (type the `reboot` command in the shell).

U-boot only gets this far:

U-Boot SPL 2023.01-26421-g0fa4e757b5-dirty (Jun 20 2023 - 00:59:09 +0000) U-Boot SPL 2023.01-26421-g0fa4e757b5-dirty (Jun 20 2023 - 00:59:09 +0000) DDRCAL: Success DDRCAL: Scrubbing ECC RAM (2048 MiB).

This knowledge base article seems very relevant to this issue:

https://community.altera.com/kb/knowledge-base/why-do-i-intermittently-see-reboot-failure-in-the-u-boot-stage-when-running-the-/339226

If so, is there a fix?  Is that a fix in Quartus release as mentioned in the article?  If so is there a release that fixes this issue?

Is this a bug in the boot loader?  If so, is there a version of the boot loader to fix this issue?

 

Thank you!

Hps Boot

7 Replies

  • BoonkhaiN_Altera's avatar
    BoonkhaiN_Altera
    Icon for Occasional Contributor rankOccasional Contributor
    6 months ago

    Hello,

    Thanks to contact Altera. My name is Boon Khai, I'm current working on an answer and will get back to you soon.

    Regards,

    Boon Khai.

    • ktabacchi's avatar
      ktabacchi
      Icon for New Contributor rankNew Contributor
      6 months ago

      Thanks for your response!  I'm not totally clear on what the recommendation is, but my impression is that Quartus version 25.3 fixes the root issue.  Additionally, you are asking users to update u-boot to version 2025.07, and the kernel to version 6.12.33, but are these updates required along with the Quartus fix, or just recommendations?

  • ktabacchi's avatar
    ktabacchi
    Icon for New Contributor rankNew Contributor
    6 months ago

    Also, a quick scan of the Quartus version 25.3 release notes doesn't list this as a fix.  Would you mind pointing to the bug/issue number for this fix?

    Thanks!

    • tehjingy_Altera's avatar
      tehjingy_Altera
      Icon for Regular Contributor rankRegular Contributor
      6 months ago

      Dear Customer, 

       

      Since a solution is provided and no further clarification is needed on this thread, it will be transitioned to community support for further help on doubts in this thread. 

      Please login to the Altera Community Forum and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions. 

      Thank you for the questions and as always pleasure having you here. 

       

      Best Wishes 

      Altera Tech Support 

  • RolandoS_Altera's avatar
    RolandoS_Altera
    Icon for Occasional Contributor rankOccasional Contributor
    6 months ago

    Hi ktabacchi​ 

    The fix for this issue was deployed in 25.3.1 release. You can find this in the Fixed Issues list. The commit seems to be related to the HSD: 15018450482-2.

    Thanks

    Rolando