Messages in this thread | | | Date | Wed, 24 Aug 2022 11:39:20 -0700 | Subject | Re: WARNING: CPU: 1 PID: 83 at arch/x86/kernel/cpu/sgx/main.c:446 ksgxd+0x1b7/0x1d0 | From | Dave Hansen <> |
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On 8/23/22 15:33, Paul Menzel wrote: >> Thanks for the extra debug info. Unfortunately, nothing is really >> sticking out as an obvious problem. >> >> The EREMOVE return codes would be interesting to know, as well as an >> idea what the physical addresses are that fail and the _counts_ of how >> many pages get sanitized versus fail. > > Is there a knob to print out this information? Or way to get this > information using ftrace? I’d like to avoid rebuilding the Linux kernel.
You can probably do it with a kprobe and ftrace, but it's a little bit of a pain since the ENCL* instructions are all inlined and don't get wrapped in actual function calls.
I'd just rebuild the kernel if it were me.
Maybe we just just uninline all of the ENCL* instruction so that we *can* more easily trace them. It's not like they are performance sensitive.
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