Am 20. Januar 2025 00:25:35 MEZ schrieb Glenn Washburn
<developm...@efficientek.com>:
>Hi Benjamin,
>
>After applying the close_range patch, I'm now getting a failure at
>runtime where the last line printed from UML is "Failed to initialize
>default registers". The host is on Debian 11 at kernel 5.10.216. I've
>bisected the issue and it looks like the bad commit is: 3f17fed2149
>("um: switch to regset API and depend on XSTATE").
>
>On another machine which is on Debian 12 and kernel 6.1.119 the UML
>binary compiled from v6.13-rc1 runs fine.
>
>I notice that the bad commit appears to be using ptrace in a different
>way. Perhaps there is a difference in how ptrace operate from 5.10 to
>6.1 kernels. I've tried debugging this without much success, as GDB
>can't be used. Any idea on what's going on here?
What processor does those machines have?
>
>Glenn
>
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