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Solution to “panic spin lock held too long” problem with FreeNAS

July 11th, 2009

The hype-o-thetic.com blog has a post about solving a problem with “panic spin lock held too long”. To solve the problem the poster did:


  1. Resetted the Bios to default settings (I had turned OFF many things before)
  2. Installed using full install amd64 (I was using an embedded install before)
  3. System -> Advanced -> activated Power Daemon
  4. Network -> LAN -> activated Device Polling
  5. Network -> LAN -> Type 1000baseTX / Full-Duplex

And since then no more “panic spin lock held too long”. The board in question was a D945GCLF2 / Atom 330.

Thanks for http://hype-o-thetic.com/2009/07/09/freenas-d945gclf2-configuration/ for this.

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  1. August 3rd, 2009 at 14:19 | #1

    The solution stated here didn’t worked, I update my post. It seems that disabling Hyperthreading fixed it or at least made it more unlikely to happen.

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