Hi,Philipp: I think it's my responsibility to fix this bug. And it's a good opportunity to know the change of RTEMS. However, I can begin to do it only in weekend due to some course at college. :-( --- Best Regards. Youren Shen.
On Fri, Mar 21, 2014 at 4:53 PM, Philipp Eppelt < [email protected]> wrote: > Hi Youren, > > git apply $attached_patch$ > > I have a meeting to attend to, so I don't have the time to test it right > now; will do it later. I hope it works. > > Cheers, > Philipp > > On 03/21/2014 09:30 AM, Philipp Eppelt wrote: > > Hi Youren, > > > > I just looked at a fresh RTEMS clone. I thought the patch eliminating > > sensitive instructions from the x86 paravirt target was merged, but it > > looks like it wasn't. > > > > I am working on an up to date patch. The old one, doesn't work anymore. > > > > Cheers, > > Philipp > > > > On 03/21/2014 03:27 AM, Youren Shen wrote: > >> Hi,Gedare: > >> > >> Thank you for your suggestion. > >> > >> In the function bootcart() in the file > >> c/src/lib/libbsp/shared/bootcard.c, there is a > >> function rtems_interrupt_disable which will be compiled to be > >> instruction "cli" in x86 platform. And the cli is also the reason why I > >> failed to startup POK partitions [1]. > >> > >> Now I consider there are two ways to solve the problem.One I called > >> functional solution, The other I called instruction solution. That is > >> say , we replace some functions with sensitive instructions or replace > >> every instructions. The first approach seems to be easy to > >> implementation, however maybe not easy to transplant to other platform. > >> I'm more familiar with the second approach, but to implement the whole > >> project will spent more time. And once we finish this project, we can > >> easily implement paravirtualization to other platform. And if design > >> properly, will also easily to transplant RTEMS to other hypervisor. > >> > >> Or we have to mix this two solutions, This needs more discussion and > >> should be thoughtful and deliberate. > >> > >> By the way, I'm going to post a blog about the POK initiation and > >> interrupt system this weekend. > >> > >> [1]. > >> > http://listengine.tuxfamily.org/lists.tuxfamily.org/pok/2014/03/msg00003.html > >> > >> --- > >> Best Regards. > >> Youren Shen. > >> > >> > >> On Thu, Mar 20, 2014 at 10:04 PM, Gedare Bloom <[email protected] > >> <mailto:[email protected]>> wrote: > >> > >> Youren Shen, > >> > >> It looks like the problem you are having is that RTEMS "hello world" > >> executes a sensitive instruction? There should not be any such > >> instruction when you use the --enable-paravirt option, so you need > to > >> determine where this instruction gets executed. The best way to do > >> this is to hook gdb up to an executing qemu. You can start qemu with > >> some -S option to prevent the boot sequence from starting to give > you > >> some time to load gdb and connect it to qemu's gdbserver socket. > once > >> you have done this, you should be able to set some breakpoints in > the > >> pok/hello application to step through the program, or you might be > >> able to catch exceptions before they get raised to pok. The other > >> option should be that inside pok there should be some information > >> about the source of the exception that you might investigate. > >> > >> Please keep us informed about your progress on this problem, > >> Thanks, > >> Gedare > >> > >> On Thu, Mar 20, 2014 at 9:16 AM, Youren Shen <[email protected] > >> <mailto:[email protected]>> wrote: > >> > Hi,Gedare > >> > > >> > Maybe it's because my qemu version is low or POK has change the > >> kernel, I > >> > can't run the RTEMS Hello world on my computer anymore. > >> > > >> > The problem has spent me a few days to find. More details see this > >> mails. > >> > > >> > [1]. > >> > > >> > http://listengine.tuxfamily.org/lists.tuxfamily.org/pok/2014/03/msg00000.html > >> > > >> > ----- > >> > Best Regards. > >> > Youren Shen. > >> > > >> > > >> > On Thu, Mar 20, 2014 at 8:03 PM, Philipp Eppelt > >> > <[email protected] > >> <mailto:[email protected]>> wrote: > >> >> > >> >> On 03/16/2014 01:01 PM, Youren Shen wrote: > >> >> > Hi, every one: > >> >> > > >> >> > I have write a blog about how to build the RTEMS on POK. > >> However, the > >> >> > RTEMS can't run on POK now. Here is my blog[1]. > >> >> > > >> >> > [1]. > >> >> > > >> > http://huaiyusched.github.io/rtems/2014/03/15/how-to-run-rtems-on-pok/ > >> >> > -- > >> >> > Best Regards. > >> >> > Youren Shen. > >> >> > >> >> > >> >> Hi Youren, > >> >> > >> >> great! > >> >> A screenshot of RTEMS HelloWorld sample running on POK would be > even > >> >> better :). > >> >> > >> >> Cheers, > >> >> Philipp > >> > > >> > > >> > > >> > > >> > -- > >> > Best Regards. > >> > Youren Shen. > >> > >> > >> > >> > >> -- > >> Best Regards. > >> Youren Shen. > > > > _______________________________________________ > > rtems-devel mailing list > > [email protected] > > http://www.rtems.org/mailman/listinfo/rtems-devel > > >
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