![]() | |||||||||||||
Messages in this thread |
Hi, > On a ppc64 platform running 2.6.13-1, the virtual to physical mapping > established by mmap'ing a hugetlbfs file does not seem to match the > mapping described by get_user_pages(). I just tried a simple test - I created a program that allocated a hugetlb page and wrote some stuff in it. I then attached with gdb and dumped memory at that address and things came out OK. That should have exercised the ptrace -> access_process_vm -> get_user_pages path. So at least for this case get_user_pages seems to be working :) It would be useful to simplify your problem a bit and take DMA out of the picture. Moving this over to linuxppc64-dev@ozlabs.org would also make sense. Anton - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
| Last update: 2005-09-18 13:31 [from the cache] ©2003-2008 | |||||||||||||