Message-ID: <0ac03934-27dc-e045-fece-5a4b4328de6c@amd.com>
Date:   Mon, 19 Dec 2022 09:23:05 +0100
From:   Christian König <christian.koenig@....com>
To:     Borislav Petkov <bp@...en8.de>, amd-gfx@...ts.freedesktop.org,
        Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
Cc:     Alex Deucher <alexander.deucher@....com>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: amdgpu refcount saturation

Thanks for the notice, going to take a look today.

Regards,
Christian.

Am 17.12.22 um 12:53 schrieb Borislav Petkov:
> Hi folks,
>
> this is with Linus' tree from Wed:
>
> 041fae9c105a ("Merge tag 'f2fs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs")
>
> on a CZ laptop:
>
> [    7.782901] [drm] initializing kernel modesetting (CARRIZO 0x1002:0x9874 0x103C:0x807E 0xC4)
>
> The splat is kinda messy:
>
> ---
>
> [    7.755306] [drm] amdgpu kernel modesetting enabled.
> [    7.779110] amdgpu 0000:00:01.0: vgaarb: deactivate vga console
> [    7.780417] Console: switching to colour dummy device 80x25
> [    7.782901] [drm] initializing kernel modesetting (CARRIZO 0x1002:0x9874 0x103C:0x807E 0xC4).
> [    7.783244] [drm] register mmio base: 0xD0C00000
> [    7.783405] [drm] register mmio size: 262144
> [    7.784182] [drm] add ip block number 0 <vi_common>
> [    7.784375] [drm] add ip block number 1 <gmc_v8_0>
> [    7.784555] [drm] add ip block number 2 <cz_ih>
> [    7.784717] [drm] add ip block number 3 <gfx_v8_0>
> [    7.784925] [drm] add ip block number 4 <sdma_v3_0>
> [    7.785094] [drm] add ip block number 5 <powerplay>
> [    7.785264] [drm] add ip block number 6 <dm>
> [    7.785413] [drm] add ip block number 7 <uvd_v6_0>
> [    7.785580] [drm] add ip block number 8 <vce_v3_0>
> [    7.800919] [drm] BIOS signature incorrect 5b 7
> [    7.801095] resource sanity check: requesting [mem 0x000c0000-0x000dffff], which spans more than PCI Bus 0000:00 [mem 0x000c0000-0x000cbfff window]
> [    7.801544] caller pci_map_rom+0x68/0x1c0 mapping multiple BARs
> [    7.801838] amdgpu 0000:00:01.0: amdgpu: Fetched VBIOS from ROM BAR
> [    7.802067] amdgpu: ATOM BIOS: SWBRT27354.001
> [    7.802272] [drm] UVD is enabled in physical mode
> [    7.802438] [drm] VCE enabled in physical mode
> [    7.802592] amdgpu 0000:00:01.0: amdgpu: Trusted Memory Zone (TMZ) feature not supported
> [    7.803100] [drm] vm size is 64 GB, 2 levels, block size is 10-bit, fragment size is 9-bit
> [    7.803387] amdgpu 0000:00:01.0: amdgpu: VRAM: 512M 0x000000F400000000 - 0x000000F41FFFFFFF (512M used)
> [    7.803708] amdgpu 0000:00:01.0: amdgpu: GART: 1024M 0x000000FF00000000 - 0x000000FF3FFFFFFF
> [    7.804007] [drm] Detected VRAM RAM=512M, BAR=512M
> [    7.804174] [drm] RAM width 128bits UNKNOWN
> [    7.804703] [drm] amdgpu: 512M of VRAM memory ready
> [    7.804882] [drm] amdgpu: 7638M of GTT memory ready.
> [    7.805164] [drm] GART: num cpu pages 262144, num gpu pages 262144
> [    7.805484] [drm] PCIE GART of 1024M enabled (table at 0x000000F400A00000).
> [    7.808418] amdgpu: hwmgr_sw_init smu backed is smu8_smu
> [    7.809070] [drm] Found UVD firmware Version: 1.91 Family ID: 11
> [    7.809413] [drm] UVD ENC is disabled
> [    7.810321] [drm] Found VCE firmware Version: 52.4 Binary ID: 3
> [    7.812036] amdgpu: smu version 18.62.00
> [    7.818378] [drm] DM_PPLIB: values for Engine clock
> [    7.818566] [drm] DM_PPLIB:	 300000
> [    7.818689] [drm] DM_PPLIB:	 360000
> [    7.818811] [drm] DM_PPLIB:	 423530
> [    7.818934] [drm] DM_PPLIB:	 514290
> [    7.819056] [drm] DM_PPLIB:	 626090
> [    7.819179] [drm] DM_PPLIB:	 720000
> [    7.819302] [drm] DM_PPLIB: Validation clocks:
> [    7.819456] [drm] DM_PPLIB:    engine_max_clock: 72000
> [    7.819633] [drm] DM_PPLIB:    memory_max_clock: 80000
> [    7.819810] [drm] DM_PPLIB:    level           : 8
> [    7.819977] [drm] DM_PPLIB: values for Display clock
> [    7.820148] [drm] DM_PPLIB:	 300000
> [    7.820271] [drm] DM_PPLIB:	 400000
> [    7.820394] [drm] DM_PPLIB:	 496560
> [    7.820563] [drm] DM_PPLIB:	 626090
> [    7.820694] [drm] DM_PPLIB:	 685720
> [    7.820857] [drm] DM_PPLIB:	 757900
> [    7.820979] [drm] DM_PPLIB: Validation clocks:
> [    7.821133] [drm] DM_PPLIB:    engine_max_clock: 72000
> [    7.821310] [drm] DM_PPLIB:    memory_max_clock: 80000
> [    7.821487] [drm] DM_PPLIB:    level           : 8
> [    7.821653] [drm] DM_PPLIB: values for Memory clock
> [    7.821821] [drm] DM_PPLIB:	 333000
> [    7.821944] [drm] DM_PPLIB:	 800000
> [    7.822066] [drm] DM_PPLIB: Validation clocks:
> [    7.822220] [drm] DM_PPLIB:    engine_max_clock: 72000
> [    7.822397] [drm] DM_PPLIB:    memory_max_clock: 80000
> [    7.822574] [drm] DM_PPLIB:    level           : 8
> [    7.823044] [drm] Display Core initialized with v3.2.215!
> [    7.903994] [drm] UVD initialized successfully.
> [    8.103416] [drm] VCE initialized successfully.
> [    8.104616] amdgpu 0000:00:01.0: amdgpu: SE 1, SH per SE 1, CU per SH 8, active_cu_number 8
> [    8.109430] [drm] Initialized amdgpu 3.49.0 20150101 for 0000:00:01.0 on minor 0
> [    8.120099] fbcon: amdgpudrmfb (fb0) is primary device
> [    8.886332] Console: switching to colour frame buffer device 320x90
> [    8.902118] amdgpu 0000:00:01.0: [drm] fb0: amdgpudrmfb frame buffer device
> [    8.967565] process '/usr/bin/fstype' started with executable stack
> [    8.979419] PM: Image not found (code -22)
> [    9.043724] EXT4-fs (sda2): mounted filesystem c34989f9-7c8f-49ae-8285-7896af84c685 with ordered data mode. Quota mode: disabled.
> [    9.540346] systemd-udevd[1404]: /etc/udev/rules.d/storage_devices.rules:1 Invalid value for OPTIONS key, ignoring: 'all_partitions'
> [    9.766687] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input10
> [    9.770181] ACPI: button: Power Button [PWRB]
> [    9.782936] acpi_cpufreq: overriding BIOS provided _PSD data
> [    9.784086] ACPI: AC: AC Adapter [AC] (off-line)
> [    9.789339] input: Sleep Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input11
> [    9.792905] ACPI: button: Sleep Button [SLPB]
> [    9.815432] input: Lid Switch as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0D:00/input/input12
> [    9.840976] ACPI: button: Lid Switch [LID]
> [    9.842731] ACPI: battery: Slot [BAT0] (battery present)
> [    9.862066] input: Power Button as /devices/LNXSYSTM:00/LNXPWRBN:00/input/input13
> [    9.884592] ACPI: button: Power Button [PWRF]
> [    9.998674] cryptd: max_cpu_qlen set to 1000
> [   10.011682] input: PC Speaker as /devices/platform/pcspkr/input/input14
> [   10.019917] AVX2 version of gcm_enc/dec engaged.
> [   10.020328] AES CTR mode by8 optimization enabled
> [   10.024120] systemd-udevd[1427]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
> [   10.025845] cfg80211: Loading compiled-in X.509 certificates for regulatory database
> [   10.089758] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
> [   10.092829] cfg80211: loaded regulatory.db is malformed or signature is missing/invalid
> [   10.113060] snd_hda_intel 0000:00:01.1: Force to non-snoop mode
> [   10.114044] tg3 0000:01:00.0 eth0: Tigon3 [partno(BCM95762) rev 5762100] (PCI Express) MAC address fc:3f:db:fc:10:9f
> [   10.120860] tg3 0000:01:00.0 eth0: attached PHY is 5762C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1])
> [   10.121311] tg3 0000:01:00.0 eth0: RXcsums[1] LinkChgREG[0] MIirq[0] ASF[0] TSOcap[1]
> [   10.121588] tg3 0000:01:00.0 eth0: dma_rwctrl[00000001] dma_mask[64-bit]
> [   10.141135] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops amdgpu_dm_audio_component_bind_ops [amdgpu])
> [   10.156355] Intel(R) Wireless WiFi driver for Linux
> [   10.162066] input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.1/sound/card0/input15
> [   10.163016] input: HDA ATI HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.1/sound/card0/input16
> [   10.163881] input: HDA ATI HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.1/sound/card0/input17
> [   10.165613] iwlwifi 0000:02:00.0: loaded firmware version 29.1044073957.0 7265D-29.ucode op_mode iwlmvm
> [   10.170553] snd_hda_codec_generic hdaudioC1D0: autoconfig for Generic: line_outs=1 (0x17/0x0/0x0/0x0/0x0) type:speaker
> [   10.171019] snd_hda_codec_generic hdaudioC1D0:    speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
> [   10.171349] snd_hda_codec_generic hdaudioC1D0:    hp_outs=1 (0x1d/0x0/0x0/0x0/0x0)
> [   10.171662] snd_hda_codec_generic hdaudioC1D0:    mono: mono_out=0x0
> [   10.171901] snd_hda_codec_generic hdaudioC1D0:    inputs:
> [   10.172111] snd_hda_codec_generic hdaudioC1D0:      Internal Mic=0x1a
> [   10.172358] snd_hda_codec_generic hdaudioC1D0:      Mic=0x19
> [   10.194871] input: HDA ATI HDMI HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.1/sound/card0/input18
> [   10.196005] input: HD-Audio Generic Mic as /devices/pci0000:00/0000:00:09.2/sound/card1/input19
> [   10.196800] input: HD-Audio Generic Headphone as /devices/pci0000:00/0000:00:09.2/sound/card1/input20
> [   10.341545] iwlwifi 0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 7265, REV=0x210
> [   10.347851] thermal thermal_zone5: failed to read out thermal zone (-61)
> [   10.370248] iwlwifi 0000:02:00.0: base HW address: 18:5e:0f:ef:3f:49, OTP minor version: 0x0
> [   10.442314] systemd-udevd[1415]: Using default interface naming scheme 'v243'.
> [   10.450847] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
> [   10.460077] systemd-udevd[1415]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
> [   10.461982] systemd-udevd[1430]: Using default interface naming scheme 'v243'.
> [   10.472784] systemd-udevd[1430]: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
> [   10.990278] SVM: TSC scaling supported
> [   10.992345] kvm: Nested Virtualization enabled
> [   10.994632] SVM: kvm: Nested Paging enabled
> [   10.997010] SVM: Virtual GIF supported
> [   10.999325] SVM: LBR virtualization supported
>
> ...
>
> [   11.923155] Adding 15721468k swap on /dev/sda1.  Priority:-2 extents:1 across:15721468k SS
> [   11.959678] EXT4-fs (sda2): re-mounted c34989f9-7c8f-49ae-8285-7896af84c685. Quota mode: disabled.
> [   12.431892] device-mapper: ioctl: 4.47.0-ioctl (2022-07-28) initialised: dm-devel@...hat.com
> [   12.457215] loop: module loaded
> [   12.583033] EXT4-fs (sda5): mounted filesystem d78a2e53-75c6-4d4a-887c-f4a66a64ba8c with ordered data mode. Quota mode: disabled.
> [   12.586978] tg3 0000:01:00.0 eth0: Link is up at 100 Mbps, full duplex
> [   12.588511] tg3 0000:01:00.0 eth0: Flow control is on for TX and on for RX
> [   12.589552] /dev/stick1: Can't open blockdev
> [   12.589847] tg3 0000:01:00.0 eth0: EEE is disabled
> [   12.593385] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
> [   15.638763] ------------[ cut here ]------------
> [   15.638772] ------------[ cut here ]------------
> [   15.638910] refcount_t: underflow; use-after-free.
> [   15.638937] WARNING: CPU: 1 PID: 1214 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110
> [   15.639052] refcount_t: saturated; leaking memory.
> [   15.639078] WARNING: CPU: 3 PID: 2437 at lib/refcount.c:19 refcount_warn_saturate+0x74/0x110
> [   15.639192] Modules linked in: loop
> [   15.639433] Modules linked in: loop
> [   15.639574]  dm_crypt dm_mod edac_mce_amd
> [   15.639815]  dm_crypt dm_mod
> [   15.639919]  kvm_amd ccp rng_core kvm irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel iwlmvm sha512_ssse3 sha512_generic mac80211 libarc4 snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi iwlwifi snd_hda_intel snd_intel_dspcfg snd_hda_codec aesni_intel
> [   15.639941]  edac_mce_amd kvm_amd
> [   15.640045]  snd_hda_core
> [   15.640047]  ccp
> [   15.640049]  crypto_simd pcspkr
> [   15.640167]  rng_core kvm irqbypass
> [   15.640254]  cryptd snd_pcm
> [   15.641109]  crct10dif_pclmul
> [   15.641215]  fam15h_power cfg80211
> [   15.641311]  crc32_pclmul crc32c_intel
> [   15.641380]  snd_timer k10temp
> [   15.641494]  ghash_clmulni_intel
> [   15.641496]  snd
> [   15.641499]  iwlmvm sha512_ssse3 sha512_generic
> [   15.641623]  rfkill tg3 soundcore
> [   15.641725]  mac80211
> [   15.641727]  battery acpi_cpufreq ac
> [   15.641834]  libarc4 snd_hda_codec_generic
> [   15.641955]  button input_leds
> [   15.642089]  ledtrig_audio snd_hda_codec_hdmi
> [   15.642199]  led_class psmouse
> [   15.642315]  iwlwifi snd_hda_intel
> [   15.642385]  serio_raw amdgpu drm_buddy
> [   15.642545]  snd_intel_dspcfg snd_hda_codec
> [   15.642663]  gpu_sched
> [   15.642665]  aesni_intel
> [   15.642667]  drm_display_helper video wmi
> [   15.642752]  snd_hda_core crypto_simd
>
> [   15.642881]  pcspkr cryptd
> [   15.643026] CPU: 1 PID: 1214 Comm: sdma1 Not tainted 6.1.0+ #1
> [   15.643135]  snd_pcm fam15h_power
> [   15.643288] Hardware name: HP HP EliteBook 745 G3/807E, BIOS N73 Ver. 01.39 04/16/2019
> [   15.643291] RIP: 0010:refcount_warn_saturate+0xba/0x110
> [   15.643399]  cfg80211 snd_timer k10temp
> [   15.643521] Code: 07 01 e8 3d 7b 52 00 0f 0b e9 92 ec 57 00 80 3d 0e 1e ee 07 00 75 85 48 c7 c7 78 20 fe 81 c6 05 fe 1d ee 07 01 e8 1a 7b 52 00 <0f> 0b e9 6f ec 57 00 80 3d e9 1d ee 07 00 0f 85 5e ff ff ff 48 c7
> [   15.643657]  snd rfkill
> [   15.643805] RSP: 0018:ffffc90000acbe60 EFLAGS: 00010286
> [   15.643892]  tg3 soundcore battery
>
> [   15.643986] RAX: 0000000000000026 RBX: ffff888103624040 RCX: 0000000000000027
> [   15.644127]  acpi_cpufreq ac button
> [   15.644257] RDX: ffff88842f49f3c8 RSI: 0000000000000001 RDI: ffff88842f49f3c0
> [   15.644260] RBP: ffff8881051531f0 R08: 80000000fff003ff R09: ffffc90000acbe00
> [   15.644316]  input_leds led_class
> [   15.644415] R10: 0000000000000001 R11: ffffffffffffffff R12: ffff88810e2bdc00
> [   15.644417] R13: ffff88810e2bdc78 R14: ffff888103624000 R15: ffff8881051cd008
> [   15.644622]  psmouse
> [   15.644739] FS:  0000000000000000(0000) GS:ffff88842f480000(0000) knlGS:0000000000000000
> [   15.645011]  serio_raw amdgpu drm_buddy
> [   15.645193] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   15.645195] CR2: 00005563d7a6d000 CR3: 0000000103e9c000 CR4: 00000000001506e0
> [   15.645329]  gpu_sched drm_display_helper video
> [   15.645962] Call Trace:
> [   15.645965]  <TASK>
> [   15.646052]  wmi
> [   15.646057] CPU: 3 PID: 2437 Comm: Xorg Not tainted 6.1.0+ #1
> [   15.646235]  drm_sched_entity_pop_job+0xfb/0x430 [gpu_sched]
> [   15.646357] Hardware name: HP HP EliteBook 745 G3/807E, BIOS N73 Ver. 01.39 04/16/2019
> [   15.646360] RIP: 0010:refcount_warn_saturate+0x74/0x110
> [   15.646416]  drm_sched_main+0x99/0x3f0 [gpu_sched]
> [   15.646662] Code: 07 01 e8 83 7b 52 00 0f 0b e9 d8 ec 57 00 80 3d 57 1e ee 07 00 75 cb 48 c7 c7 20 20 fe 81 c6 05 47 1e ee 07 01 e8 60 7b 52 00 <0f> 0b e9 b5 ec 57 00 80 3d 32 1e ee 07 00 75 a8 48 c7 c7 48 20 fe
> [   15.646785]  ? __pfx_autoremove_wake_function+0x10/0x10
> [   15.647030] RSP: 0000:ffffc90001b33ca0 EFLAGS: 00010286
> [   15.647276]  ? __pfx_drm_sched_main+0x10/0x10 [gpu_sched]
> [   15.647394] RAX: 0000000000000026 RBX: ffffc90001b33ce0 RCX: 0000000000000027
> [   15.647397] RDX: ffff88842f59f3c8 RSI: 0000000000000001 RDI: ffff88842f59f3c0
> [   15.647640]  kthread+0xd4/0x100
> [   15.647886] RBP: ffff888103624040 R08: 80000000fff00401 R09: ffffc90001b33c40
> [   15.647888] R10: 0000000000000001 R11: ffffffffffffffff R12: 00000000ffffffff
> [   15.647967]  ? __pfx_kthread+0x10/0x10
> [   15.648244] R13: ffff888103624040 R14: ffff88810e968058 R15: ffff888000000000
> [   15.648247]  ret_from_fork+0x2c/0x50
> [   15.648383] FS:  00007f385db36a00(0000) GS:ffff88842f580000(0000) knlGS:0000000000000000
> [   15.648586]  </TASK>
> [   15.648588] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   15.648591] CR2: 00007f37d3016df0 CR3: 0000000103e9c000 CR4: 00000000001506e0
> [   15.648833] ---[ end trace 0000000000000000 ]---
> [   15.654004] Call Trace:
> [   15.654006]  <TASK>
> [   15.654007]  dma_resv_iter_walk_unlocked.part.0+0x147/0x180
> [   15.654015]  dma_resv_iter_first_unlocked+0x25/0x70
> [   15.654018]  dma_resv_test_signaled+0x22/0xb0
> [   15.654021]  ttm_bo_vm_fault_reserved+0x43/0x350
> [   15.654886]  amdgpu_gem_fault+0x7f/0xf0 [amdgpu]
> [   15.655696]  __do_fault+0x41/0x240
> [   15.655974]  __handle_mm_fault+0xcf4/0x1740
> [   15.655978]  ? do_mmap+0x33d/0x4f0
> [   15.655981]  handle_mm_fault+0xb5/0x180
> [   15.655984]  do_user_addr_fault+0x19b/0x6b0
> [   15.656574]  exc_page_fault+0x6d/0x140
> [   15.656715]  asm_exc_page_fault+0x22/0x30
> [   15.656723] RIP: 0033:0x7f385d17b1bb
> [   15.657027] Code: 00 00 48 01 d6 48 01 d7 4c 8d 1d 00 0b 05 00 49 63 14 93 49 8d 14 13 ff e2 0f 0b 0f 1f 40 00 48 81 ea 80 00 00 00 0f 28 4e f0 <0f> 29 4f f0 0f 28 56 e0 0f 29 57 e0 0f 28 5e d0 0f 29 5f d0 0f 28
> [   15.657030] RSP: 002b:00007ffdc75943a8 EFLAGS: 00010202
> [   15.657032] RAX: 00007f37d3015000 RBX: 00007f37d3015000 RCX: 0000000000010000
> [   15.657034] RDX: 0000000000001d80 RSI: 00007f37f000ae00 RDI: 00007f37d3016e00
> [   15.658395] RBP: 0000000000000001 R08: 00007f37d3016df0 R09: 0000000000000000
> [   15.658396] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000080e1
> [   15.658397] R13: 00005563d7c23e78 R14: 00007f37f0009000 R15: 0000000000001e00
> [   15.658400]  </TASK>
> [   15.659189] ---[ end trace 0000000000000000 ]---
> [   15.668798] ------------[ cut here ]------------
> [   15.669007] refcount_t: saturated; leaking memory.
> [   15.669201] WARNING: CPU: 1 PID: 2479 at lib/refcount.c:22 refcount_warn_saturate+0x51/0x110
> [   15.669492] Modules linked in: loop dm_crypt dm_mod edac_mce_amd kvm_amd ccp rng_core kvm irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel iwlmvm sha512_ssse3 sha512_generic mac80211 libarc4 snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi iwlwifi snd_hda_intel snd_intel_dspcfg snd_hda_codec aesni_intel snd_hda_core crypto_simd pcspkr cryptd snd_pcm fam15h_power cfg80211 snd_timer k10temp snd rfkill tg3 soundcore battery acpi_cpufreq ac button input_leds led_class psmouse serio_raw amdgpu drm_buddy gpu_sched drm_display_helper video wmi
> [   15.671256] CPU: 1 PID: 2479 Comm: Xorg:cs0 Tainted: G        W          6.1.0+ #1
> [   15.671510] Hardware name: HP HP EliteBook 745 G3/807E, BIOS N73 Ver. 01.39 04/16/2019
> [   15.671774] RIP: 0010:refcount_warn_saturate+0x51/0x110
> [   15.671954] Code: 84 bc 00 00 00 e9 ff ec 57 00 85 f6 74 23 80 3d 79 1e ee 07 00 75 ee 48 c7 c7 20 20 fe 81 c6 05 69 1e ee 07 01 e8 83 7b 52 00 <0f> 0b e9 d8 ec 57 00 80 3d 57 1e ee 07 00 75 cb 48 c7 c7 20 20 fe
> [   15.672626] RSP: 0018:ffffc90000beb820 EFLAGS: 00010282
> [   15.672812] RAX: 0000000000000026 RBX: ffff888103624040 RCX: 0000000000000027
> [   15.672815] RDX: ffff88842f49f3c8 RSI: 0000000000000001 RDI: ffff88842f49f3c0
> [   15.672816] RBP: 0000000000000003 R08: 0000000000000058 R09: 00000000ffefffff
> [   15.672818] R10: ffffffff8224a280 R11: 0000000000000003 R12: ffff888105153000
> [   15.672820] R13: ffff8881051c0000 R14: ffff888105493f48 R15: ffff888105153000
> [   15.672822] FS:  00007f38541ff640(0000) GS:ffff88842f480000(0000) knlGS:0000000000000000
> [   15.672824] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [   15.672826] CR2: 00005563d7a6d000 CR3: 0000000103e9c000 CR4: 00000000001506e0
> [   15.672828] Call Trace:
> [   15.674888]  <TASK>
> [   15.674889]  amdgpu_sync_resv+0x191/0x1e0 [amdgpu]
> [   15.675956]  amdgpu_vm_sdma_prepare.part.0+0x4b/0x90 [amdgpu]
> [   15.677154]  amdgpu_vm_update_range+0x140/0x6e0 [amdgpu]
> [   15.678185]  amdgpu_vm_bo_update+0x32e/0x570 [amdgpu]
> [   15.679068]  amdgpu_vm_handle_moved+0x5e/0x120 [amdgpu]
> [   15.679999]  amdgpu_cs_ioctl+0x1289/0x1e00 [amdgpu]
> [   15.681234]  ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu]
> [   15.682257]  drm_ioctl_kernel+0xbf/0x160
> [   15.682398]  drm_ioctl+0x21c/0x500
> [   15.682517]  ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu]
> [   15.683403]  ? futex_wake+0x6d/0x160
> [   15.683533]  amdgpu_drm_ioctl+0x5e/0xb0 [amdgpu]
> [   15.684394]  __x64_sys_ioctl+0xb6/0xd0
> [   15.684589]  ? exit_to_user_mode_prepare+0x97/0x140
> [   15.684774]  do_syscall_64+0x3a/0x90
> [   15.684784]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
> [   15.685094] RIP: 0033:0x7f385d12d957
> [   15.685229] Code: 3c 1c 48 f7 d8 4c 39 e0 77 b9 e8 24 ff ff ff 85 c0 78 be 4c 89 e0 5b 5d 41 5c c3 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e1 94 0c 00 f7 d8 64 89 01 48
> [   15.685232] RSP: 002b:00007f38541fe868 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
> [   15.685236] RAX: ffffffffffffffda RBX: 00007f38541fe8d0 RCX: 00007f385d12d957
> [   15.685238] RDX: 00007f38541fe8d0 RSI: 00000000c0186444 RDI: 000000000000000e
> [   15.685239] RBP: 00000000c0186444 R08: 00007f38541fea00 R09: 0000000000000020
> [   15.685241] R10: 00007f38541fea00 R11: 0000000000000246 R12: 00005563d7964490
> [   15.685242] R13: 000000000000000e R14: 0000000000000000 R15: 00005563d7b4f6a0
> [   15.685245]  </TASK>
> [   15.685247] ---[ end trace 0000000000000000 ]---
>

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