Hi Nathan, On Wed, Nov 17, 2010 at 22:10:46, Nathan Neitzke wrote: > There is a known issue with the latest TI release for the DM355 > linux-davinci-staging kernel regarding un-mounting a partition on an SD > card after the SD card has been removed from the system. Since our > embedded system relies on SD card for storage, and the user can remove > the SD card at any point without our knowledge, this is a scenario we > must handle. Data corruption is not a big issue, we have ways around > it. Our largest concern is not having the system lock up when we > un-mount the device. > > > > I have performed testing with several kernels. Our current kernel, the > latest TI Davinci PSP release from the linux-davinci-staging, and the > HEAD of the master branch for linux-davinci-staging all exhibit this > behavior. However, the linux-davinci tree from khilman does not – the > issue appears to be fixed. So I am assuming this was fixed in the core > Linux MMC drivers (mmc_block driver possibly) since khilman’s tree is > now up to 2.6.36. > > > > My questions being – is there any way to determine which features/fixes > (in regards to DM355 and related peripherals) we would lose out on by > simply using the linux-davinci tree as a basis for our kernel? Or, is > there any knowledge of when linux-davinci-staging will be rebased and > integrated with the 2.6.36 release?
The next kernel rebase of TI release would only happen in Q1 of next year. You can have a look at this wiki for information on how DM355 support stands on linux-davinci tree: http://processors.wiki.ti.com/index.php/DaVinci_GIT_Linux_Kernel If you suspect a single patch upstream fixed this, then you can try and use git-bisect to locate the exact fix. You can bisect between HEAD and 2.6.32-davinci1. git-bisect would normally search for the offending commit, but here you would have to use it in the opposite sense to search for the commit which fixed the issue. Thanks, Sekhar _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
