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Re: slugos/be 4.8 and 128MB

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  • Vitus Jensen
    ... Hopefully. But google sees no recent posts regarding the dma logic on arm devices. ... Thank you for this tip,
    Message 1 of 5 , Jan 28, 2008
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      <veröffentlicht & per E-Mail versendet>

      sdm485 wrote:

      > I am finding the same thing happening on a 256M slug
      > (slugosbe-4.9-beta) so I think this is the problem. Apparently it is
      > being worked on.

      Hopefully. But google sees no recent posts regarding the dma logic on arm
      devices.

      > I have not had a problem with hangs after I added a
      > pullup resistor to the Rx data line of the serial port. It might be
      > something like that if you don't get the hangs as long as the serial
      > port is plugged in. 10k to +3.3V.

      Thank you for this tip, Steve. For a test I let the level converter
      connected to the serial line and had no hangs for some days. So I will add
      a pullup as a permanent solution.

      Bye,
      Vitus
    • Vitus Jensen
      ... OK. So do you think it would be better (for a 24/7 device) to restrict memory access to 64 MB on a fatslug as a workaround? Or at least disable swapping
      Message 2 of 5 , Jan 28, 2008
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        Rod Whitby wrote:

        > Vitus Jensen wrote:
        >> Have a look at http://bugzilla.kernel.org/show_bug.cgi?id=7760 Does this
        >> bug apply to slugos/be, too?
        >
        > Since it's a kernel problem, it will apply to any distro until the
        > kernel problem is diagnosed and fixed.

        OK.

        So do you think it would be better (for a 24/7 device) to restrict memory
        access to 64 MB on a fatslug as a workaround? Or at least disable swapping
        so any I/O error wouldn't be fatal?

        Bye,
        Vitus
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