Hardware:Jetson AGX Orin
Software:Jetpack 5.1.0
Question:We connect an IMU on 3140000.serial. When the serial port is opened, It works normally, but the KMALLOC-256 slab objs keeps growing 80K bytes per second,When the serial port is clocked,the KMALLOC-256 slab objs remains unchanged
The memory leak stack can be found through the kmemleak slub_debug as follows
UART and DMA DTS are as follows
During debugging, it was found that the number of GPC-DMA interrupts is 0,tegra_dma_isr interrupt handler not execute, desc_dma there is no kfree
UART drivers and DMA drivers are NVIDIA’s own drivers, what is the reason?