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Message-ID: <a08baedd-75f8-4099-b465-0db9001bd719@amd.com>
Date: Thu, 4 Jan 2024 11:02:32 -0500
User-Agent: Mozilla Thunderbird
Subject: Re: DRM TTM stack trace dump on ancient hardware
Content-Language: en-US
To: =?UTF-8?Q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>,
 Olliver Schinagl <oliver@schinagl.nl>, dri-devel@lists.freedesktop.org,
 linux-kernel <linux-kernel@vger.kernel.org>,
 Alex Deucher <Alexander.Deucher@amd.com>
Cc: Huang Rui <ray.huang@amd.com>, David Airlie <airlied@gmail.com>,
 Daniel Vetter <daniel@ffwll.ch>, Sumit Semwal <sumit.semwal@linaro.org>
References: <0660cc7e-fa24-4dd7-8738-f89c774b05e7@schinagl.nl>
 <d1988a18-d400-4a55-88bb-045d6eea4f41@amd.com>
From: Harry Wentland <harry.wentland@amd.com>
In-Reply-To: <d1988a18-d400-4a55-88bb-045d6eea4f41@amd.com>
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Oland is DCE 6 and won't default to DC.

Harry

On 2024-01-04 10:51, Christian K=C3=B6nig wrote:
> Hi Olliver,
>
> well as long as you don't explicitly disable the support for the older hw=
 generations the=C2=A0R7 250 is still supported and should still work perfe=
ctly fine.
>
> What you see here is basically some reference counting issue, most likely=
 in the display code.
>
> Question to Alex and Harry is CIK already using DC or the classic display=
 code? If it's DC then it looks like we either miss unpinning a BO or grabb=
ing a reference to a BO.
>
> Regards,
> Christian.
>
> Am 04.01.24 um 16:38 schrieb Olliver Schinagl:
>> Sorry for just dumping this here, but for those that think this is impor=
tant, just rebooted after a weird btrfs crash (remounted r/o, no dataloss i=
t seems), probably a new kernel, and got duped with the following. Things '=
seem' to work fine however. I don't even know how or where to google for th=
is one.
>>
>>
>> My graphics card is I think the R7 250, or some old beast like that, and=
 I also know i'm probably shouldn't be using amdgpu on this oldtimer?
>>
>> Linux 6.6.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Tue, 02 Jan 2024 02:28:28 +00=
00 x86_64 GNU/Linux
>> 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI=
] Oland XT [Radeon HD 8670 / R5 340X OEM / R7 250/350/350X OEM]
>> model name=C2=A0=C2=A0=C2=A0 : AMD FX(tm)-8350 Eight-Core Processor
>>
>> [=C2=A0=C2=A0=C2=A0 0.000000] Command line: BOOT_IMAGE=3D/arch_root/boot=
/vmlinuz-linux root=3DUUID=3Dd rw rootflags=3Dsubvol=3Darch_root radeon.aud=
io=3D1 radeon.si_support=3D0 radeon.cik_support=3D0 amdgpu.si_support=3D1 a=
mdgpu.cik_support=3D1 LANG=3Den_US.UTF-8 ivrs_ioapic=3D9@0000:00:14.0 ivrs_=
ioapic=3D10@0000:00:00.2 noibrs noibpb nopti mitigations=3Doff
>> [=C2=A0=C2=A0=C2=A0 0.091847] Kernel command line: BOOT_IMAGE=3D/arch_ro=
ot/boot/vmlinuz-linux root=3DUUID=3Dd rw rootflags=3Dsubvol=3Darch_root rad=
eon.audio=3D1 radeon.si_support=3D0 radeon.cik_support=3D0 amdgpu.si_suppor=
t=3D1 amdgpu.cik_support=3D1 LANG=3Den_US.UTF-8 ivrs_ioapic=3D9@0000:00:14.=
0 ivrs_ioapic=3D10@0000:00:00.2 noibrs noibpb nopti mitigations=3Doff
>> [=C2=A0=C2=A0=C2=A0 1.490484] [drm] radeon kernel modesetting enabled.
>> [=C2=A0=C2=A0=C2=A0 1.490565] radeon 0000:01:00.0: SI support disabled b=
y module param
>> [=C2=A0=C2=A0=C2=A0 4.627771] [drm] amdgpu kernel modesetting enabled.
>> [=C2=A0=C2=A0=C2=A0 4.627955] amdgpu: Virtual CRAT table created for CPU
>> [=C2=A0=C2=A0=C2=A0 4.627967] amdgpu: Topology: Add CPU node
>> [=C2=A0=C2=A0=C2=A0 4.650039] amdgpu 0000:01:00.0: amdgpu: Fetched VBIOS=
 from ROM BAR
>> [=C2=A0=C2=A0=C2=A0 4.650042] amdgpu: ATOM BIOS: 113-C6620600-S01
>> [=C2=A0=C2=A0=C2=A0 4.650054] kfd kfd: amdgpu: OLAND=C2=A0 not supported=
 in kfd
>> [=C2=A0=C2=A0=C2=A0 4.678004] amdgpu 0000:01:00.0: vgaarb: deactivate vg=
a console
>> [=C2=A0=C2=A0=C2=A0 4.678007] amdgpu 0000:01:00.0: amdgpu: Trusted Memor=
y Zone (TMZ) feature not supported
>> [=C2=A0=C2=A0=C2=A0 4.678010] amdgpu 0000:01:00.0: amdgpu: PCIE atomic o=
ps is not supported
>> [=C2=A0=C2=A0=C2=A0 4.678715] amdgpu 0000:01:00.0: amdgpu: VRAM: 2048M 0=
x000000F400000000 - 0x000000F47FFFFFFF (2048M used)
>> [=C2=A0=C2=A0=C2=A0 4.678718] amdgpu 0000:01:00.0: amdgpu: GART: 1024M 0=
x000000FF00000000 - 0x000000FF3FFFFFFF
>> [=C2=A0=C2=A0=C2=A0 4.678878] [drm] amdgpu: 2048M of VRAM memory ready
>> [=C2=A0=C2=A0=C2=A0 4.678880] [drm] amdgpu: 11487M of GTT memory ready.
>> [=C2=A0=C2=A0=C2=A0 4.679218] amdgpu 0000:01:00.0: amdgpu: PCIE GART of =
1024M enabled (table at 0x000000F400400000).
>> [=C2=A0=C2=A0=C2=A0 4.680506] [drm] amdgpu: dpm initialized
>> [=C2=A0=C2=A0=C2=A0 4.680527] [drm] AMDGPU Display Connectors
>> [=C2=A0=C2=A0=C2=A0 5.209956] amdgpu 0000:01:00.0: amdgpu: SE 1, SH per =
SE 1, CU per SH 6, active_cu_number 6
>> [=C2=A0=C2=A0=C2=A0 5.521572] [drm] Initialized amdgpu 3.54.0 20150101 f=
or 0000:01:00.0 on minor 1
>> [=C2=A0=C2=A0=C2=A0 5.670853] fbcon: amdgpudrmfb (fb0) is primary device
>> [=C2=A0=C2=A0=C2=A0 5.731643] amdgpu 0000:01:00.0: [drm] fb0: amdgpudrmf=
b frame buffer device
>>
>> But kernel dumps like this are usually not a good thing (tm).
>>
>> [=C2=A0=C2=A0 32.161704] ------------[ cut here ]------------
>> [=C2=A0=C2=A0 32.161708] WARNING: CPU: 0 PID: 603 at drivers/gpu/drm/ttm=
/ttm_bo.c:326 ttm_bo_release+0x292/0x2e0 [ttm]
>> [=C2=A0=C2=A0 32.161726] Modules linked in: xt_conntrack xt_MASQUERADE n=
f_conntrack_netlink iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defra=
g_ipv4 xt_addrtype iptable_filter br_netfilter bridge rfcomm snd_seq_dummy =
snd_hrtimer snd_seq snd_seq_device overlay 8021q garp mrp stp llc cmac algi=
f_hash algif_skcipher af_alg bnep it87 hwmon_vid edac_mce_amd kvm_amd ccp s=
nd_hda_codec_realtek kvm snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_i=
ntel btusb irqbypass snd_intel_dspcfg btrtl crct10dif_pclmul snd_intel_sdw_=
acpi btintel crc32_pclmul btbcm polyval_clmulni snd_hda_codec eeepc_wmi btm=
tk polyval_generic gf128mul asus_wmi bluetooth snd_hda_core ledtrig_audio g=
hash_clmulni_intel r8169 sparse_keymap sha512_ssse3 snd_hwdep sha1_ssse3 pl=
atform_profile snd_pcm i8042 ecdh_generic aesni_intel serio realtek sp5100_=
tco snd_timer crypto_simd mdio_devres wmi_bmof rfkill cryptd pcspkr acpi_cp=
ufreq k10temp fam15h_power i2c_piix4 snd crc16 soundcore libphy joydev mous=
edev mac_hid vfat fat sg
>> crypto_user fuse dm_mod loop nfnetlink ip_tables
>> [=C2=A0=C2=A0 32.161780]=C2=A0 x_tables usbhid amdgpu drm_exec amdxcp dr=
m_buddy gpu_sched btrfs radeon blake2b_generic libcrc32c crc32c_generic xor=
 raid6_pq drm_ttm_helper ttm video nvme i2c_algo_bit drm_suballoc_helper cr=
c32c_intel nvme_core sha256_ssse3 drm_display_helper nvme_common xhci_pci c=
ec xhci_pci_renesas wmi uas usb_storage
>> [=C2=A0=C2=A0 32.161800] CPU: 0 PID: 603 Comm: Xorg Not tainted 6.6.9-ar=
ch1-1 #1 e215ab44d1af91c0f0e686ff953f296051be417c
>> [=C2=A0=C2=A0 32.161803] Hardware name: To be filled by O.E.M. To be fil=
led by O.E.M./M5A97, BIOS 1605 10/25/2012
>> [=C2=A0=C2=A0 32.161804] RIP: 0010:ttm_bo_release+0x292/0x2e0 [ttm]
>> [=C2=A0=C2=A0 32.161816] Code: 49 8b b4 24 40 08 00 00 48 83 c4 38 48 8d=
 53 30 bf 40 01 00 00 5b 5d 41 5c 41 5d 41 5e e9 26 29 68 d1 4c 89 e7 e9 5b=
 fe ff ff <0f> 0b 48 83 7b 20 00 0f 84 a6 fd ff ff 0f 0b e9 9f fd ff ff c7 =
43
>> [=C2=A0=C2=A0 32.161818] RSP: 0018:ffffb02cc0cdbc18 EFLAGS: 00010202
>> [=C2=A0=C2=A0 32.161820] RAX: 0000000000000000 RBX: ffff9291c073fdd0 RCX=
: 0000000000400033
>> [=C2=A0=C2=A0 32.161821] RDX: 0000000000000001 RSI: 0000000000000000 RDI=
: ffff9291c073fdd0
>> [=C2=A0=C2=A0 32.161823] RBP: ffff9291c073fc58 R08: 0000000000000000 R09=
: 0000000000400033
>> [=C2=A0=C2=A0 32.161824] R10: ffff9291622bb780 R11: 0000000000000000 R12=
: ffff92914c98eee0
>> [=C2=A0=C2=A0 32.161825] R13: 0000000000000001 R14: ffff92917835c848 R15=
: ffff9291c6418788
>> [=C2=A0=C2=A0 32.161826] FS:=C2=A0 00007f0691a205c0(0000) GS:ffff929627c=
00000(0000) knlGS:0000000000000000
>> [=C2=A0=C2=A0 32.161828] CS:=C2=A0 0010 DS: 0000 ES: 0000 CR0: 000000008=
0050033
>> [=C2=A0=C2=A0 32.161829] CR2: 00007f0690d78c2c CR3: 00000002df620000 CR4=
: 00000000000406f0
>> [=C2=A0=C2=A0 32.161831] Call Trace:
>> [=C2=A0=C2=A0 32.161832]=C2=A0 <TASK>
>> [=C2=A0=C2=A0 32.161833]=C2=A0 ? ttm_bo_release+0x292/0x2e0 [ttm d3be1c6=
b438b7d4abed1793b797fc6e1ac6a8908]
>> [=C2=A0=C2=A0 32.161844]=C2=A0 ? __warn+0x81/0x130
>> [=C2=A0=C2=A0 32.161849]=C2=A0 ? ttm_bo_release+0x292/0x2e0 [ttm d3be1c6=
b438b7d4abed1793b797fc6e1ac6a8908]
>> [=C2=A0=C2=A0 32.161861]=C2=A0 ? report_bug+0x171/0x1a0
>> [=C2=A0=C2=A0 32.161866]=C2=A0 ? handle_bug+0x3c/0x80
>> [=C2=A0=C2=A0 32.161868]=C2=A0 ? exc_invalid_op+0x17/0x70
>> [=C2=A0=C2=A0 32.161870]=C2=A0 ? asm_exc_invalid_op+0x1a/0x20
>> [=C2=A0=C2=A0 32.161875]=C2=A0 ? ttm_bo_release+0x292/0x2e0 [ttm d3be1c6=
b438b7d4abed1793b797fc6e1ac6a8908]
>> [=C2=A0=C2=A0 32.161887]=C2=A0 amdgpu_bo_unref+0x1e/0x30 [amdgpu 2f3ce60=
5d8443bb7ca6dfe278dd999d24fdac211]
>> [=C2=A0=C2=A0 32.162520]=C2=A0 amdgpu_gem_object_free+0x34/0x60 [amdgpu =
2f3ce605d8443bb7ca6dfe278dd999d24fdac211]
>> [=C2=A0=C2=A0 32.162978]=C2=A0 drm_gem_object_release_handle+0x54/0x60
>> [=C2=A0=C2=A0 32.162984]=C2=A0 ? __pfx_drm_gem_object_release_handle+0x1=
0/0x10
>> [=C2=A0=C2=A0 32.162987]=C2=A0 idr_for_each+0x71/0xf0
>> [=C2=A0=C2=A0 32.162991]=C2=A0 drm_gem_release+0x20/0x30
>> [=C2=A0=C2=A0 32.162995]=C2=A0 drm_file_free+0x1f8/0x270
>> [=C2=A0=C2=A0 32.162999]=C2=A0 drm_release+0x74/0xf0
>> [=C2=A0=C2=A0 32.163002]=C2=A0 __fput+0xea/0x290
>> [=C2=A0=C2=A0 32.163007]=C2=A0 task_work_run+0x5a/0x90
>> [=C2=A0=C2=A0 32.163011]=C2=A0 do_exit+0x377/0xb20
>> [=C2=A0=C2=A0 32.163014]=C2=A0 ? asm_sysvec_apic_timer_interrupt+0x1a/0x=
20
>> [=C2=A0=C2=A0 32.163019]=C2=A0 do_group_exit+0x31/0x80
>> [=C2=A0=C2=A0 32.163022]=C2=A0 __x64_sys_exit_group+0x18/0x20
>> [=C2=A0=C2=A0 32.163025]=C2=A0 do_syscall_64+0x5d/0x90
>> [=C2=A0=C2=A0 32.163029]=C2=A0 ? __count_memcg_events+0x42/0x90
>> [=C2=A0=C2=A0 32.163033]=C2=A0 ? count_memcg_events.constprop.0+0x1a/0x3=
0
>> [=C2=A0=C2=A0 32.163037]=C2=A0 ? handle_mm_fault+0xa2/0x360
>> [=C2=A0=C2=A0 32.163040]=C2=A0 ? do_user_addr_fault+0x30f/0x660
>> [=C2=A0=C2=A0 32.163043]=C2=A0 ? exc_page_fault+0x7f/0x180
>> [=C2=A0=C2=A0 32.163045]=C2=A0 entry_SYSCALL_64_after_hwframe+0x6e/0xd8
>> [=C2=A0=C2=A0 32.163048] RIP: 0033:0x7f069171ce2d
>> [=C2=A0=C2=A0 32.163074] Code: Unable to access opcode bytes at 0x7f0691=
71ce03.
>> [=C2=A0=C2=A0 32.163075] RSP: 002b:00007fff0d3ba328 EFLAGS: 00000202 ORI=
G_RAX: 00000000000000e7
>> [=C2=A0=C2=A0 32.163077] RAX: ffffffffffffffda RBX: 00007f069181cfa8 RCX=
: 00007f069171ce2d
>> [=C2=A0=C2=A0 32.163079] RDX: 00000000000000e7 RSI: fffffffffffffd08 RDI=
: 0000000000000000
>> [=C2=A0=C2=A0 32.163080] RBP: 0000000000000883 R08: 0000000562be99f3 R09=
: 0000000000000000
>> [=C2=A0=C2=A0 32.163081] R10: 0000562be99f3690 R11: 0000000000000202 R12=
: 0000000000000000
>> [=C2=A0=C2=A0 32.163082] R13: 0000000000000000 R14: 00007f069181b680 R15=
: 00007f069181cfc0
>> [=C2=A0=C2=A0 32.163085]=C2=A0 </TASK>
>> [=C2=A0=C2=A0 32.163086] ---[ end trace 0000000000000000 ]---
>>
>>
>> Thanks,
>>
>> Olliver
>>
>