Alright, I'm looking at this bug report related to QEMU. The user is experiencing an issue where using the `memsave` command on a 64-bit Windows XP SP2 system results in an "Invalid addr" error. Let me break down the details. They successfully used `memsave` on a 32-bit Windows XP SP3 VM, but when trying the same on a 64-bit setup, it fails. The address provided is supposed to be valid for the System EPROCESS struct, and they've already checked that paging isn't causing it. The error message mentions an invalid address: `0xfadffd71d040`. This seems like a 64-bit address since it's beyond the 32-bit limit. QEMU's `memsave` is likely having trouble handling such large addresses, possibly due to incorrect translation or limitations in how it processes memory requests for 64-bit targets. The categories provided include things like mistranslation, assembly lowering, and others. Since this issue occurs during a memory operation that involves address translation (from guest to host), it points towards a problem in the way QEMU handles addresses, especially when dealing with 64-bit systems. This sounds more like a translation issue rather than an assembly or other category. So, I think this falls under "mistranslation" because QEMU isn't correctly mapping the 64-bit address to the target's memory space. mistranslation