Messages in this thread | | | Date | Mon, 30 Apr 2018 17:50:50 +0200 (CEST) | From | Anna-Maria Gleixner <> | Subject | Hashed pointer issues |
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Hi,
I stumbled over an issue with hashed pointers and tracing.
I'm using trace points for examination and on error the trace buffers are dumped. The error occurs when entropy has not been set up, so the pointers are not hashed and only (ptrval) is printed instead. The pointers are required to distinguish the different objects in the trace.
Beside workarounds like patching lib/vsprintf.c helpers before testing or dumping trace buffers later (given that kernel comes up properly and entropy is set up), is there a possible generic solution for this issue? A commandline option for disabling the pointer obfuscation would be a pretty handy tool.
Thanks,
Anna-Maria
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