On Fri, 1 Nov 2024 at 04:37, Janne Grunau j@jannau.net wrote:
Starting with v2024.10 dev_iommu_dma_unmap calls during device removal trigger a NULL pointer dereference since the the iommu device is removed before its user. The sparsely used DM_FLAG_VITAL flag is intended for this dependency. This series adds it to the Apple dart iommu driver and implements the two phased device removal to the EFI loader.
Is this also the cause of the crash that you were observing with the RFC patches that I had posted earlier?
-sughosh
Signed-off-by: Janne Grunau j@jannau.net
Janne Grunau (2): iommu: apple: Mark device with DM_FLAG_VITAL efi_loader: remove non vital devices first
drivers/iommu/apple_dart.c | 2 +- lib/efi_loader/efi_boottime.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)
base-commit: 1d147b74f437fb0e85821e8271fe52bc5fd30194 change-id: 20241031-iommu_apple_dart_ordering-558e62671512
Best regards,
Janne Grunau j@jannau.net