BUG: using smp_processor_id() in preemptible [00000000] code: afbc/19166
caller is __do_user_fault.constprop.0+0x54/0x7c
CPU: 2 PID: 19166 Comm: afbc Tainted: G         C        5.8.0-darkstar #1
Hardware name: Rockchip (Device Tree)
[<c020fd90>] (unwind_backtrace) from [<c020b024>] (show_stack+0x10/0x14)
[<c020b024>] (show_stack) from [<c09a5ab0>] (dump_stack+0x8c/0xa0)
[<c09a5ab0>] (dump_stack) from [<c1072f40>] (check_preemption_disabled+0x108/0x10c)
[<c1072f40>] (check_preemption_disabled) from [<c02138a8>] (__do_user_fault.constprop.0+0x54/0x7c)
[<c02138a8>] (__do_user_fault.constprop.0) from [<c0213b18>] (do_page_fault+0x1c0/0x340)
[<c0213b18>] (do_page_fault) from [<c0213e20>] (do_DataAbort+0x30/0xb4)
[<c0213e20>] (do_DataAbort) from [<c0200dfc>] (__dabt_usr+0x3c/0x40)
Exception stack(0xdc59ffb0 to 0xdc59fff8)
ffa0:                                     00000000 befc8318 d5b97b22 d5b97b22
ffc0: 00474000 00000000 004629d4 00000000 00000000 00000000 00474000 befc7ee4
ffe0: 00000000 befc7df8 00000007 00463408 60070010 ffffffff
panfrost ffa30000.gpu: Unhandled Page fault in AS0 at VA 0x000000006E727540
Reason: TODO
raw fault status: 0xF002C1
decoded fault status: SLAVE FAULT
exception type 0xC1: TRANSLATION_FAULT_LEVEL1
access type 0x2: READ
source id 0xF0
panfrost ffa30000.gpu: gpu sched timeout, js=0, config=0x3300, status=0x8, head=0x3189680, tail=0x3189680, sched_job=8c072dd1
panfrost ffa30000.gpu: gpu sched timeout, js=1, config=0x3301, status=0x8, head=0x2084980, tail=0x2084880, sched_job=318302c6