Messages in this thread | | | Date | Tue, 21 Apr 2020 09:12:39 +0100 | From | Will Deacon <> | Subject | Re: [PATCH] arm32: fix flushcache syscall with device address |
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On Tue, Apr 21, 2020 at 04:08:34PM +0800, Tian Tao wrote: > An issue has been observed on our Kungpeng916 systems when using a PCI > express GPU. This occurs when a 32 bit application running on a 64 bit > kernel issues a cache flush operation to a memory address that is in > a PCI BAR of the GPU.The results in an illegal operation and > subsequent crash.
A kernel crash? If so, please can you include the log here?
Will
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