Dave <[email protected]> writes:
> For segfault error codes on x86_64, bits 0-3 are documented in
> arch/x86_64/mm/fault.c. However, I am getting error 0x14 and 0x15 with this
> particular user app when it segfaults. Is bit 4 valid and what does that
> imply?
bit 4 is documented too in 2.6. It means it was an instruction fetch.
The error code is just the architectural error code for page faults
BTW, see the Intel and AMD manuals for details.
-Andi
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