我用cat mm_session命令查询到的内存有点问题，为什么pid会是2037672306和-127呢？内存泄露了吗？
handle = 170 refcount = 3 mm_flag = 0x2 tgid = 2037672306
dma_buffer:
dma_buf = 000000009f1263d7, iova = 0xeb520000sgt = 0x00000000bfb01d3d, size = 8110080, map_core = 0x1
handle = 279 refcount = 94 mm_flag = 0x2 tgid = -127
dma_buffer:
dma_buf = 00000000a784f46e, iova = 0xe26f0000sgt = 0x00000000eb4a4f0e, size = 8110080, map_core = 0x1
我用cat mm_session命令查询到的内存有点问题，为什么pid会是2037672306和-127呢？内存泄露了吗？
handle = 170 refcount = 3 mm_flag = 0x2 tgid = 2037672306
dma_buffer:
dma_buf = 000000009f1263d7, iova = 0xeb520000sgt = 0x00000000bfb01d3d, size = 8110080, map_core = 0x1
handle = 279 refcount = 94 mm_flag = 0x2 tgid = -127
dma_buffer:
dma_buf = 00000000a784f46e, iova = 0xe26f0000sgt = 0x00000000eb4a4f0e, size = 8110080, map_core = 0x1