| Message ID | 20210216033307.69863-1-aik@ozlabs.ru |
|---|---|
| Headers | show |
| Series | powerpc/iommu: Stop crashing the host when VM is terminated | expand |
On Tue, 16 Feb 2021 14:33:05 +1100, Alexey Kardashevskiy wrote: > Killing a VM on a host under memory pressure kills a host which is > annoying. 1/2 reduces the chances, 2/2 eliminates panic() on > ioda2. > > > This is based on sha1 > f40ddce88593 Linus Torvalds "Linux 5.11". > > [...] Applied to powerpc/next. [1/2] powerpc/iommu: Allocate it_map by vmalloc https://git.kernel.org/powerpc/c/7f1fa82d79947dfabb4046e1d787da9db2bc1c20 [2/2] powerpc/iommu: Do not immediately panic when failed IOMMU table allocation https://git.kernel.org/powerpc/c/4be518d838809e21354f32087aa9c26efc50b410 cheers
Killing a VM on a host under memory pressure kills a host which is annoying. 1/2 reduces the chances, 2/2 eliminates panic() on ioda2. This is based on sha1 f40ddce88593 Linus Torvalds "Linux 5.11". Please comment. Thanks. Alexey Kardashevskiy (2): powerpc/iommu: Allocate it_map by vmalloc powerpc/iommu: Do not immediately panic when failed IOMMU table allocation arch/powerpc/kernel/iommu.c | 19 ++++++------------- arch/powerpc/platforms/cell/iommu.c | 3 ++- arch/powerpc/platforms/pasemi/iommu.c | 4 +++- arch/powerpc/platforms/powernv/pci-ioda.c | 15 ++++++++------- arch/powerpc/platforms/pseries/iommu.c | 10 +++++++--- arch/powerpc/sysdev/dart_iommu.c | 3 ++- 6 files changed, 28 insertions(+), 26 deletions(-)