On Tue, 01 Jul 2008 14:35:42 +1000 Benjamin Herrenschmidt <[EMAIL PROTECTED]> wrote:
> This is some preliminary work to improve TLB management on SW loaded > TLB powerpc platforms. This introduce support for non-atomic PTE > operations in pgtable-ppc32.h and removes write back to the PTE from > the TLB miss handlers. In addition, the DSI interrupt code no longer > tries to fixup write permission, this is left to generic code, and > _PAGE_HWWRITE is gone. I tried testing this on a Sequoia board this morning. Kernel boots, but then it hangs when starting the init process. The last message seen is: INIT: version 2.86 booting The setup is an tftp'd kernel via U-Boot using cuImage, nfsroot filesystem. Sequoia has an FPU, and CONFIG_PPC_FPU is set. I reverted this patch and used the latest powerpc-next branch and it boots fine. Seems something is wrong here still. I suspect the DSI handler changes, but I have no proof and haven't debugged it yet. Until we get it fixed, I don't feel overly comfortable putting it in the next branch. Which board and setup did you test with? josh _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
