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authorTobias Klauser <tklauser@distanz.ch>2016-01-05 16:47:41 +0100
committerTobias Klauser <tklauser@distanz.ch>2016-01-05 16:48:27 +0100
commit391ed1e5327fedfe4215b07dd98bf04a6ad0f5cb (patch)
treeeb6d0bd297e45eb94c66dcb547fe1e5222abedf3 /ifpps/.gitignore
parent06a1eb3e6714575ffd47fe35a95b27bdb77e3187 (diff)
zsh: trafgen: Add completion for -b/--rate
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'ifpps/.gitignore')
0 files changed, 0 insertions, 0 deletions
ee7c05a88e4996e8177f91b&id2=a0615a16f7d0ceb5804d295203c302d496d8ee91'>diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/dt-bindings/dma/at91.h')