Messages in this thread |  | | | Date | Thu, 13 Oct 2011 19:54:39 +0900 | | From | Masami Hiramatsu <> | | Subject | Re: [PATCH 07/12] perf_events: add LBR software filter support for Intel X86 |
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(2011/10/12 16:06), Ingo Molnar wrote: > > * Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> wrote: > >> (2011/10/10 23:45), Andi Kleen wrote: >>>> Ah, nice. Maybe we need another test binary, since current one is >>>> just ensuring the output of objdump and decoder is same. >>>> anyway it's not so difficult if it feeds random binaries to >>>> ensure the decoder doesn't access bad address. >>> >>> Pure /dev/urandom is not good because it cannot be ever reproduced. >>> Better use a PRNG with random seed from urandom, but print the seed. >> >> Sure, > > Obviously the urandom data should be kbuild generated and only > cleared on 'make clean' - not regenerated on every run. So if there's > a failure the failing urandom data stays around readily.
I've added options for passing a combination of seed and seqno or instruction sequence directly. So if someone find an error message, they can easily reproduce it or report it.
Thank you,
-- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com
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