Messages in this thread | | | Date | Sat, 9 Feb 2008 20:56:07 +0200 | From | "Pekka Enberg" <> | Subject | Re: [RFC PATCH] x86: explicit call to mmiotrace in do_page_fault() |
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Hi Pekka,
On Feb 9, 2008 8:23 PM, Pekka Paalanen <pq@iki.fi> wrote: > By default it reserves 32 MB/cpu of relay buffers during module init. > It's this big based on experimentation with the nvidia proprietary driver. > There is no other way than unloading the module to free the buffers, or > even to clear them. This means that every time you start the user space > logger application, it gets old data first. Also poking the module > parameters via /sys is not allowed.
So how is mmiotrace different from, say, blktrace that has an ioctl() to setup/teardown the relay channels (for mmiotrace it can be a "status" file that does the setup/teardown when written some appropriate values)?
Pekka
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