• 3 Posts
  • 37 Comments
Joined 11 months ago
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Cake day: July 13th, 2023

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  • Hard to say without knowing your full situation.

    Does your power utility do net metering? How much do you expect to generate compared to your usage on a annual basis?

    I got a 6.5kW system a few years ago for a final price of around 12k after rebates. It covers nearby all of my usage and my provider does net metering, so really good days cover less good days, summer covers winter, etc.










  • Mem stomps are the worst. At least nowadays we have address sanitizer to find em. We recently had one where the same 4 byte pattern was being written randomly in different places in memory, would happen all over the place. Always the same 4 byte pattern, just different places. Eventually, it would write to a spot that was being used and cause a crash. Different callstacks almost every time, but the same memory footprint wherever the crash happened. An array size, a memory address, a string mangled, etc. Eventually we got our ASan build working after about a month of trying to track it down, digging through callstacks and core dumps. We found that it was a dangling pointer in our AI system, when an AI was removed, there was a situation where the pointer wouldn’t always be cleaned up, then later when another AI was removed, a boolean and an enum were written to the address of the dangling pointer, always the same format/value. which had haunted us for so long.