On Fri, Apr 22, 2022 at 02:24:34PM +0800, Mark-PK Tsai wrote: > Release dma coherent memory before rvdev is free in > rproc_rvdev_release(). > > Below is the kmemleak report: > unreferenced object 0xffffff8051c1a980 (size 128): > comm "sh", pid 4895, jiffies 4295026604 (age 15481.896s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000003a0f3ec0>] dma_declare_coherent_memory+0x44/0x11c > [<00000000ad243164>] rproc_add_virtio_dev+0xb8/0x20c > [<00000000d219c8e9>] rproc_vdev_do_start+0x18/0x24 > [<00000000e694b468>] rproc_start+0x22c/0x3e0 > [<000000000b938941>] rproc_boot+0x4a4/0x860 > [<000000003c4dc532>] state_store.52856+0x10c/0x1b8 > [<00000000df2297ac>] dev_attr_store+0x34/0x84 > [<0000000083a53bdb>] sysfs_kf_write+0x60/0xbc > [<000000008ed830df>] kernfs_fop_write+0x198/0x458 > [<0000000072b9ad06>] __vfs_write+0x50/0x210 > [<00000000377d7469>] vfs_write+0xe4/0x1a8 > [<00000000c3fc594e>] ksys_write+0x78/0x144 > [<000000009aef6f4b>] __arm64_sys_write+0x1c/0x28 > [<0000000003496a98>] el0_svc_common+0xc8/0x22c > [<00000000ea3fe7a3>] el0_svc_compat_handler+0x1c/0x28 > [<00000000d1a85a4e>] el0_svc_compat+0x8/0x24 > > Mark-PK Tsai (2): > dma-mapping: Add dma_release_coherent_memory to DMA API > remoteproc: Fix dma_mem leak after rproc_shutdown > > drivers/remoteproc/remoteproc_core.c | 1 + > include/linux/dma-map-ops.h | 3 +++ > kernel/dma/coherent.c | 10 ++++++++-- > 3 files changed, 12 insertions(+), 2 deletions(-) Applied. Thanks, Mathieu > > -- > 2.18.0 >
