Oops#1 Part3
<1>[  491.671256] BUG: kernel NULL pointer dereference, address: 0000000000000095
<1>[  491.671265] #PF: supervisor read access in kernel mode
<1>[  491.671268] #PF: error_code(0x0000) - not-present page
<6>[  491.671271] PGD 0 P4D 0 
<4>[  491.671274] Oops: Oops: 0000 [#1] SMP NOPTI
<4>[  491.671279] CPU: 3 UID: 0 PID: 2735 Comm: perf_pmu Tainted: G S   U       L   N  7.0.0-rc3-CI_DRM_18134-g169ea69ad8f2+ #1 PREEMPT(lazy) 
<4>[  491.671285] Tainted: [S]=CPU_OUT_OF_SPEC, [U]=USER, [L]=SOFTLOCKUP, [N]=TEST
<4>[  491.671288] Hardware name: Intel(R) Client Systems NUC11TNHi5/NUC11TNBi5, BIOS TNTGL357.0042.2020.1221.1743 12/21/2020
<4>[  491.671292] RIP: 0010:_free_event+0x3e/0x370
<4>[  491.671298] Code: 60 04 00 00 e8 43 5a f3 ff 48 8d bb 80 04 00 00 e8 37 5a f3 ff 48 83 bb 08 03 00 00 00 0f 84 e9 00 00 00 48 8b 83 98 00 00 00 <f6> 80 95 00 00 00 08 74 0d f6 83 02 01 00 00 10 0f 84 a8 00 00 00
<4>[  491.671304] RSP: 0018:ffffc90005d2ba40 EFLAGS: 00010246
<4>[  491.671308] RAX: 0000000000000000 RBX: ffff888189e25e88 RCX: 0000000000000001
<4>[  491.671311] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
<4>[  491.671314] RBP: ffffc90005d2ba58 R08: 0000000000000000 R09: 0000000000000000
<4>[  491.671317] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
<4>[  491.671320] R13: ffff888189e25e88 R14: ffff888189e26180 R15: ffff888189e25e88
<4>[  491.671323] FS:  0000000000000000(0000) GS:ffff88851c21b000(0000) knlGS:0000000000000000
<4>[  491.671327] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033