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| author | Changbin Du <changbin.du@intel.com> | 2017-05-22 12:46:58 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-05-24 05:33:37 +0300 |
| commit | e274086e473c0cbea18051ae0a78a05f8d658f47 (patch) | |
| tree | 0f121adf1e5e3257d4ea6669a7ce7553caf56d1c /drivers/gpu/drm/i915/gvt/kvmgt.c | |
| parent | 1999f108c983a7287a847b09e29dac25b9301dee (diff) | |
| download | linux-e274086e473c0cbea18051ae0a78a05f8d658f47.tar.xz | |
drm/i915/gvt: clean up unsubmited workloads before destroying kmem cache
This is to fix a memory leak issue caused by unfreed gvtg workload objects.
Walk through the workload list and free all of the remained workloads
before destroying kmem cache.
[179.885211] INFO: Object 0xffff9cef10003b80 @offset=7040
[179.885657] kmem_cache_destroy gvt-g_vgpu_workload: Slab cache still has objects
[179.886146] CPU: 2 PID: 2318 Comm: win_lucas Tainted: G B W 4.11.0+ #1
[179.887223] Call Trace:
[179.887394] dump_stack+0x63/0x90
[179.887617] kmem_cache_destroy+0x1cf/0x1e0
[179.887960] intel_vgpu_clean_execlist+0x15/0x20 [i915]
[179.888365] intel_gvt_destroy_vgpu+0x4c/0xd0 [i915]
[179.888688] intel_vgpu_remove+0x2a/0x30 [kvmgt]
[179.888988] mdev_device_remove_ops+0x23/0x50 [mdev]
[179.889309] mdev_device_remove+0xe4/0x190 [mdev]
[179.889615] remove_store+0x7d/0xb0 [mdev]
[179.889885] dev_attr_store+0x18/0x30
[179.890129] sysfs_kf_write+0x37/0x40
[179.890371] kernfs_fop_write+0x107/0x180
[179.890632] __vfs_write+0x37/0x160
[179.890865] ? kmem_cache_alloc+0xd7/0x1b0
[179.891116] ? apparmor_file_permission+0x1a/0x20
[179.891372] ? security_file_permission+0x3b/0xc0
[179.891628] vfs_write+0xb8/0x1b0
[179.891812] SyS_write+0x55/0xc0
[179.891992] entry_SYSCALL_64_fastpath+0x1e/0xad
Signed-off-by: Changbin Du <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/kvmgt.c')
0 files changed, 0 insertions, 0 deletions