Marco wrote: > Tim Bird wrote: >> Marco wrote: >>> This is a second attempt at mainlining Pramfs. The first attempt was >>> back in early 2004 by MontaVista. Since then the kernel code has almost >>> been completely rewritten. So my first item on the list was porting the >>> code on a recent kernel version. After that I added the XIP support. >> It's very nice to see this technology revived. >> >> Is the information at: >> http://pramfs.sourceforge.net/ >> and >> http://pramfs.sourceforge.net/pramfs-spec.html >> still valid - particularly the latter? > > Yep. at 99%. I've done some modifications due to the porting and there > will be some ones due to this review. I tried to talk with Steve > Longerbeam to update the site but without success. I'd like to update it. > >> It would be very nice to see this get mainlined. I believe that >> one of the main uses for this is to store crash information >> over a reboot so the next kernel (not in crashing state) can have >> a better chance of dealing with it. As such, I think >> it's important to keep the code paths for Pramfs short, synchronous, >> and unentangled with other kernel systems (block IO, page cache, etc.). >> > > Yes, I quite agree. I think that this kind of feature would be very > useful especially for the embedded world.
Just FYI - we have an "exception monitor" at Sony which is used in several projects, that records application and kernel crash information into the file system, for subsequent (often in-field) analysis. However, the data currently gets written to a flash filesystem and the logs sometimes get truncated or otherwise corrupted. This seems like a perfect match for what we're trying to do. -- Tim ============================= Tim Bird Architecture Group Chair, CE Linux Forum Senior Staff Engineer, Sony Corporation of America ============================= -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
