Messages in this thread | | | Date | Tue, 17 Mar 2009 13:01:12 +0100 | From | Joerg Roedel <> | Subject | Re: [PATCH 0/3] dma-debug: add additional checks |
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On Mon, Mar 16, 2009 at 06:05:27PM +0100, Joerg Roedel wrote: > Hi, > > this small series of patches adds three additional checks to the dma-api > debugging code. The first one checks if dma mappings are requested for > kernel text or rodata segments. > The second check added makes noise if a device is unbound from its > driver and there are still pending dma allocations we are aware of. > > Joerg > > diffstat: > > arch/x86/kernel/pci-dma.c | 4 ++ > include/linux/dma-debug.h | 7 ++++ > lib/dma-debug.c | 81 ++++++++++++++++++++++++++++++++++++++++++++- > 3 files changed, 91 insertions(+), 1 deletions(-)
Ingo,
you can also pull these patches from my dma-api/debug branch at
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu.git dma-api/debug
including the other dma-debug patches relative to your tip/core/iommu branch.
The complete diffstat and shortlog against tip/core/iommu is here:
Documentation/DMA-API.txt | 106 ++++ Documentation/kernel-parameters.txt | 10 + arch/Kconfig | 2 + arch/x86/Kconfig | 1 + arch/x86/include/asm/dma-mapping.h | 45 ++- arch/x86/kernel/pci-dma.c | 10 + include/linux/dma-debug.h | 174 +++++++ lib/Kconfig.debug | 11 + lib/Makefile | 2 + lib/dma-debug.c | 949 +++++++++++++++++++++++++++++++++++ 10 files changed, 1304 insertions(+), 6 deletions(-)
David Woodhouse (2): dma-debug: add function to dump dma mappings dma-debug: print stacktrace of mapping path on unmap error
Joerg Roedel (19): dma-debug: add Kconfig entry dma-debug: add header file and core data structures dma-debug: add hash functions for dma_debug_entries dma-debug: add allocator code dma-debug: add initialization code dma-debug: add kernel command line parameters dma-debug: add debugfs interface dma-debug: add core checking functions dma-debug: add checking for map/unmap_page/single dma-debug: add add checking for map/unmap_sg dma-debug: add checking for [alloc|free]_coherent dma-debug: add checks for sync_single_* dma-debug: add checks for sync_single_range_* dma-debug: add checks for sync_single_sg_* dma-debug: x86 architecture bindings dma-debug: Documentation update dma-debug: add checks for kernel text and rodata dma-debug: add a check dma memory leaks dma-debug/x86: register pci bus for dma-debug leak detection
Joerg
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