Hi:
When I perform "echo mem > /sys/power/state", I got BUG on
rs600_gart_set_page, then suspend hangs.
I don't have a camera to log the outputs, the call trace are:
rs600_gart_set_page+0x31
radeon_gart_bind
radeon_ttm_backend
ttm_tt_bind
ttm_bo_handle_move_mem
ttm_mem_evict_fist
ttm_bo_force_list_clean
ttm_bo_evict_vram
ttm_suspend_kms
radeon_pci_suspend
pci_legacy_suspend
pci_pm_suspend
pm_op
dpm_suspend
suspend_devices_and_enter
enter_state
state_store
kobj_attr_store
sysfs_write_file
vfs_write
sys_write
system_call_fastpath
l *rs600_gart_set_page+0x31 is in writeq, maybe this is a possible
use-after-free. Thanks.
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