search for: rmap

Dear R developers, I've run into a very cryptic error message from R CMD check while working on a new package. This is the relevant output: [fizban@~/Rmap]:R CMD check Rmap * checking for working pdflatex ... OK * using log directory '/home/fizban/Rmap/Rmap.Rcheck' * using R version 2.9.0 (2009-04-17) * using session charset: UTF-8 * checking for file 'Rmap/DESCRIPTION' ... OK * checking extension type ... Package * this is package ...

Dear All, I'v tried to read in data in numerous ways including:- Spain10km<-data.frame(readAsciiGrid("F://RMap//sp10kpointid1.aux")) Error in readAsciiGrid("F://RMap//sp10kpointid1.aux") : object 'cellsize' not found In addition: Warning message: In readLines(t, n = 6) : incomplete final line found on 'F://RMap//sp10kpointid1.aux' Spain10km<-data.frame(readAsciiGrid(&...

I just uploaded two packages to CRAN. shapefiles_0.1.tar.gz - functions to read and write ESRI shapefiles (including dbfs) emme2_0.1.tar.gz - functions to read binary data from an EMME/2 databank data (EMME/2 is a transportation modeling program) Please let me know if you find any bugs or have some suggestions. Thanks. Regards, Benjamin Stabler Transportation Planning Analysis Unit Oregon

...which belong to the physical page. This changes with virtualization: The guest and host dirty/reference bits are defined to be the logical OR of the values for the mapping and the physical page. This patch implements the necessary changes in pgtable.h for s390. There is a common code change in mm/rmap.c, the call to page_test_and_clear_young must be moved. This is a no-op for all architecture but s390. page_referenced checks the referenced bits for the physiscal page and for all mappings: o The physical page is checked with page_test_and_clear_young. o The mappings are checked with ptep_test_and...

...e pages will stay in stable because the mlocked bit is now set for the mapping. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- include/linux/fs.h | 1 + mm/memory.c | 25 +++++++++++++++++++++++++ mm/mlock.c | 2 ++ mm/page-discard.c | 5 ++++- mm/rmap.c | 13 +++++++++++-- 5 files changed, 43 insertions(+), 3 deletions(-) diff -urpN linux-2.6/include/linux/fs.h linux-2.6-patched/include/linux/fs.h --- linux-2.6/include/linux/fs.h 2006-09-01 12:49:32.000000000 +0200 +++ linux-2.6-patched/include/linux/fs.h 2006-09-01 12:50:24.00000000...

...e pages will stay in stable because the mlocked bit is now set for the mapping. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- include/linux/fs.h | 1 + mm/memory.c | 25 +++++++++++++++++++++++++ mm/mlock.c | 2 ++ mm/page-discard.c | 5 ++++- mm/rmap.c | 13 +++++++++++-- 5 files changed, 43 insertions(+), 3 deletions(-) diff -urpN linux-2.6/include/linux/fs.h linux-2.6-patched/include/linux/fs.h --- linux-2.6/include/linux/fs.h 2006-09-01 12:49:32.000000000 +0200 +++ linux-2.6-patched/include/linux/fs.h 2006-09-01 12:50:24.00000000...

...queue **vqs, int nvqs, int iov_limit) > { I also wonder here: when page is write protected then it does not look like .invalidate_range is invoked. E.g. mm/ksm.c calls mmu_notifier_invalidate_range_start and mmu_notifier_invalidate_range_end but not mmu_notifier_invalidate_range. Similarly, rmap in page_mkclean_one will not call mmu_notifier_invalidate_range. If I'm right vhost won't get notified when page is write-protected since you didn't install start/end notifiers. Note that end notifier can be called with page locked, so it's not as straight-forward as just adding a...

...queue **vqs, int nvqs, int iov_limit) > { I also wonder here: when page is write protected then it does not look like .invalidate_range is invoked. E.g. mm/ksm.c calls mmu_notifier_invalidate_range_start and mmu_notifier_invalidate_range_end but not mmu_notifier_invalidate_range. Similarly, rmap in page_mkclean_one will not call mmu_notifier_invalidate_range. If I'm right vhost won't get notified when page is write-protected since you didn't install start/end notifiers. Note that end notifier can be called with page locked, so it's not as straight-forward as just adding a...

...support right now but surely, > it's my TODO after landing this work. > > Could you share your usecase? Sure. My driver has privately managed non LRU pages which gets mapped into user space process page table through f_ops->mmap() and vmops->fault() which then updates the file RMAP (page->mapping->i_mmap) through page_add_file_rmap(page). One thing to note here is that the page->mapping eventually points to struct address_space (file->f_mapping) which belongs to the character device file (created using mknod) which we are using for establishing the mmap() regions...

...support right now but surely, > it's my TODO after landing this work. > > Could you share your usecase? Sure. My driver has privately managed non LRU pages which gets mapped into user space process page table through f_ops->mmap() and vmops->fault() which then updates the file RMAP (page->mapping->i_mmap) through page_add_file_rmap(page). One thing to note here is that the page->mapping eventually points to struct address_space (file->f_mapping) which belongs to the character device file (created using mknod) which we are using for establishing the mmap() regions...

Hello, I would like to know if (as the usa map with Splus), it is possible with R to plot the french map and to add points (representing towns for instance) on the figure in the appropriate (x,y) system. Thank you. Nathalie Peyrard

...;t work: we''ll do something > > else. > > Just use xc_map_foreign_range(), as you would for mapping any other > domain''s xenstore page. So here''s my patch against latest bk, including test program but we have an issue. On unmap, I hit the BUG_ON() on mm/rmap.c:482. Is this some issue with using xc_map_foreign_range() on non-foreign pages? Rusty. diff -urpN --exclude TAGS -X /home/rusty/devel/kernel/kernel-patches/current-dontdiff --minimal xen/linux-2.6.11-xen-sparse/drivers/xen/privcmd/privcmd.c xen-dom0-store/linux-2.6.11-xen-sparse/drivers/xen/pri...

...+ include/linux/page-states.h | 25 +++++++++++++++++++++- mm/fremap.c | 1 mm/memory.c | 5 ++++ mm/mprotect.c | 1 mm/page-discard.c | 49 +++++++++++++++++++++++++++++++++++++++++++- mm/page_alloc.c | 3 +- mm/rmap.c | 1 9 files changed, 91 insertions(+), 5 deletions(-) diff -urpN linux-2.6/fs/exec.c linux-2.6-patched/fs/exec.c --- linux-2.6/fs/exec.c 2006-09-01 12:49:30.000000000 +0200 +++ linux-2.6-patched/fs/exec.c 2006-09-01 12:50:24.000000000 +0200 @@ -307,6 +307,7 @@ void install...

...+ include/linux/page-states.h | 25 +++++++++++++++++++++- mm/fremap.c | 1 mm/memory.c | 5 ++++ mm/mprotect.c | 1 mm/page-discard.c | 49 +++++++++++++++++++++++++++++++++++++++++++- mm/page_alloc.c | 3 +- mm/rmap.c | 1 9 files changed, 91 insertions(+), 5 deletions(-) diff -urpN linux-2.6/fs/exec.c linux-2.6-patched/fs/exec.c --- linux-2.6/fs/exec.c 2006-09-01 12:49:30.000000000 +0200 +++ linux-2.6-patched/fs/exec.c 2006-09-01 12:50:24.000000000 +0200 @@ -307,6 +307,7 @@ void install...

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

...om: Mircea C?rjaliu <mcirjaliu at bitdefender.com> The following two new mm exports are introduced: * mm_remote_map(struct mm_struct *req_mm, unsigned long req_hva, unsigned long map_hva) * mm_remote_unmap(unsigned long map_hva) * mm_remote_reset(void) * rmap_walk_remote(struct page *page, struct rmap_walk_control *rwc) This patch allows one process to map into its address space a page from another process. The previous page (if it exists) is dropped. There is no corresponding pair of system calls as this API is meant to be used by...

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

After way to many months here is the fifth version of the guest page hinting patches. Compared to version four a few improvements have been added: - Avoid page_host_discards() calls outside of page-states.h - The discard list is now implemented via the page_free_discarded hook and architecture specific code. - PG_state_change page flag has been replaced with architecture specficic

direct_remap_pfn_range() does not properly mark vma with VM_PFNMAP. This triggers improper reference counting on what rmap thought was a normal page, and a subsequent BUG() such as: Eeek! page_mapcount(page) went negative! (-1) page->flags = 414 page->count = 1 page->mapping = 00000000 ------------[ cut here ]------------ kernel BUG at /home/chrisw/hg/xen/xen-unstable/linux-2.6.16-rc2-xen0/mm/rmap.c:555...