BUG: ASPM issues with Radeon Pro WX3100
Bjorn Helgaas
helgaas at kernel.org
Tue Jul 8 23:07:44 UTC 2025
On Thu, Jul 03, 2025 at 12:09:20AM -0400, Alex Huang wrote:
> Hi,
>
> Recently, I dug up a Radeon Pro WX3100 and when booting, got a black screen
> with some complaints of No EDID read and then a `Fatal error during GPU
> init`. With windows booting fine and an MSI Kombustor run turning out just
> fine, I would say hardware failure highly unlikely. The logs seem unrelated
> (although I have attached them anyways), lspci -vvxxx output for the device
> is also at the end of the email. Also here is lspci -vvxxx for the upstream
> PCI bridge attached to the GPU.
>
> A bisect reveals the offending commit is 0064b0ce85bb ("drm/amd/pm: enable
> ASPM by default"). The simple fix appears to be setting `amdgpu.aspm=0` in
> kernel boot parameters. This seemingly is a case of something in the Lenovo
> ideacentre (specifically the ideacentre 510A-15ARR I found this bug on)
> incorrectly reporting ASPM availability. I'd think this is a PCI driver
> issue, but I am by no means an expert here. If this ends up on the wrong
> mailing list, please do let me know.
The messages below show that you're running v5.12.0-rc7+, but
0064b0ce85bb didn't appear until v5.14. Obviously it was reproducible
if you could bisect it, but I'm confused about where you observed the
problem.
The newer log you posted at
https://lore.kernel.org/r/e03b119d-4a27-45a0-8058-3ac7fbee23c7@gmail.com
is from v6.16.0-rc4+, which is great because it's a current kernel,
but the issue there looks much different (an oops in
drm_gem_object_handle_put_unlocked()) and doesn't seem like a PCI
issue at all.
If you can reproduce a PCI issue in v6.16, I'd love to look at it, but
right now I don't see anything I can help with.
> I also did try enabling/disabling ASPM on the BIOS side to no avail.
>
> The bug appears to be systematically existent for many other cards I ended
> up plugging into the device (thus conclusion as PCI driver issue). And does
> appear to have an attempt to fix specifically for amdgpu
> (20220408154447.3519453-1-richard.gong at amd.com) but that never went
> upstream.
>
> I could try fixing this bug if it indeed is a PCI driver bug.
>
> Thanks,
> Alex H
>
> PS This is my first message around here, please be nice to me :)
>
>
> ------------[ cut here ]------------
> WARNING: CPU: 2 PID: 338 at drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c:1089
> uvd_v6_0_ring_insert_nop+0x21/0x120 [amdgpu]
> Modules linked in: amdgpu(+) ath10k_pci ath10k_core snd_hda_codec_realtek
> snd_hda_codec_generic ath binfmt_misc ledtrig_audio snd_hda_codec_hdmi
> mac80211 snd>
> CPU: 2 PID: 338 Comm: systemd-udevd Not tainted 5.12.0-rc7+ #41
> Hardware name: LENOVO 90J00078US/3706, BIOS O4DKT45A 12/06/2022
> RIP: 0010:uvd_v6_0_ring_insert_nop+0x21/0x120 [amdgpu]
> Code: ff ff 0f 1f 80 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 41
> 89 f4 53 48 89 fb f6 87 18 02 00 00 01 0f 84 e7 00 00 00 <0f> 0b 41 d1 ec 0f
> 84 d5>
> RSP: 0018:ffff9c75c192f8e8 EFLAGS: 00010202
> RAX: ffffffffc0b86b10 RBX: ffff8f7f3496e8a8 RCX: 0000000000000010
> RDX: 000000000000000f RSI: 000000000000000f RDI: ffff8f7f3496e8a8
> RBP: ffff9c75c192f900 R08: ffff8f8016a985c0 R09: ffff9c75c192f5e0
> R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000000f
> R13: 0000000000000000 R14: 0000000000000000 R15: ffff8f7f34960000
> FS: 00007f29d89df880(0000) GS:ffff8f8016a80000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000056359eef7ca0 CR3: 0000000102574000 CR4: 00000000003506e0
> Call Trace:
> amdgpu_ring_commit+0x3c/0x70 [amdgpu]
> uvd_v6_0_ring_test_ring+0xfe/0x180 [amdgpu]
> amdgpu_ring_test_helper+0x21/0x80 [amdgpu]
> uvd_v6_0_hw_init+0x9c/0x5b0 [amdgpu]
> amdgpu_device_init.cold+0xff2/0x1b71 [amdgpu]
> ? pci_read_config_word+0x27/0x40
> ? do_pci_enable_device+0xd7/0x100
> amdgpu_driver_load_kms+0x69/0x280 [amdgpu]
> amdgpu_pci_probe+0x12a/0x1b0 [amdgpu]
> local_pci_probe+0x48/0x80
> pci_device_probe+0x10f/0x1c0
> really_probe+0xfb/0x420
> driver_probe_device+0xe9/0x160
> device_driver_attach+0x5d/0x70
> __driver_attach+0x8f/0x150
> ? device_driver_attach+0x70/0x70
> bus_for_each_dev+0x7e/0xc0
> driver_attach+0x1e/0x20
> bus_add_driver+0x152/0x1f0
> driver_register+0x74/0xd0
> __pci_register_driver+0x54/0x60
> amdgpu_init+0x77/0x1000 [amdgpu]
> ? 0xffffffffc108d000
> do_one_initcall+0x48/0x1d0
> ? __cond_resched+0x19/0x30
> ? kmem_cache_alloc_trace+0x390/0x440
> ? do_init_module+0x28/0x260
> do_init_module+0x62/0x260
> load_module+0x2554/0x2770
> __do_sys_finit_module+0xc2/0x120
> ? __do_sys_finit_module+0xc2/0x120
> __x64_sys_finit_module+0x1a/0x20
> do_syscall_64+0x38/0x90
> entry_SYSCALL_64_after_hwframe+0x44/0xae
> RIP: 0033:0x7f29d900b95d
> Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7
> 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff
> 73 01>
> RSP: 002b:00007fff56f4a6a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
> RAX: ffffffffffffffda RBX: 000055abfb17d7a0 RCX: 00007f29d900b95d
> RDX: 0000000000000000 RSI: 00007f29d8eebded RDI: 0000000000000018
> RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000018 R11: 0000000000000246 R12: 00007f29d8eebded
> R13: 0000000000000000 R14: 000055abfb182d90 R15: 000055abfb17d7a0
> ---[ end trace 5b8e539d0503ff82 ]---
> amdgpu 0000:01:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring uvd
> test failed (-110)
> [drm:amdgpu_device_init.cold [amdgpu]] *ERROR* hw_init of IP block
> <uvd_v6_0> failed -110
> amdgpu 0000:01:00.0: amdgpu: amdgpu_device_ip_init failed
> amdgpu 0000:01:00.0: amdgpu: Fatal error during GPU init
> ------------[ cut here ]------------
>
> 00:01.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Raven/Raven2 PCIe GPP
> Bridge [6:0] (prog-if 00 [Normal decode])
> Subsystem: Lenovo Raven/Raven2 PCIe GPP Bridge [6:0]
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin ? routed to IRQ 26
> IOMMU group: 1
> Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
> I/O behind bridge: f000-ffff [size=4K] [16-bit]
> Memory behind bridge: fce00000-fcefffff [size=1M] [32-bit]
> Prefetchable memory behind bridge: e0000000-f01fffff [size=258M]
> [32-bit]
> Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort+ <SERR- <PERR-
> BridgeCtl: Parity- SERR+ NoISA- VGA+ VGA16+ MAbort- >Reset- FastB2B-
> PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
> Capabilities: [50] Power Management version 3
> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
> PME(D0+,D1-,D2-,D3hot+,D3cold+)
> Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [58] Express (v2) Root Port (Slot+), MSI 00
> DevCap: MaxPayload 512 bytes, PhantFunc 0
> ExtTag+ RBE+
> DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
> RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
> MaxPayload 256 bytes, MaxReadReq 512 bytes
> DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr-
> TransPend-
> LnkCap: Port #0, Speed 8GT/s, Width x8, ASPM L1, Exit
> Latency L1 <64us
> ClockPM- Surprise- LLActRep+ BwNot+ ASPMOptComp+
> LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 8GT/s, Width x8
> TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt+
> SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug-
> Surprise-
> Slot #0, PowerLimit 0W; Interlock- NoCompl+
> SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt-
> HPIrq- LinkChg-
> Control: AttnInd Unknown, PwrInd Unknown, Power-
> Interlock-
> SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+
> Interlock-
> Changed: MRL- PresDet- LinkState+
> RootCap: CRSVisible+
> RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+
> CRSVisible+
> RootSta: PME ReqID 0000, PMEStatus- PMEPending-
> DevCap2: Completion Timeout: Range ABCD, TimeoutDis+
> NROPrPrP- LTR+
> 10BitTagComp- 10BitTagReq- OBFF Not Supported,
> ExtFmt+ EETLPPrefix+, MaxEETLPPrefixes 1
> EmergencyPowerReduction Not Supported,
> EmergencyPowerReductionInit-
> FRS- LN System CLS Not Supported, TPHComp-
> ExtTPHComp- ARIFwd+
> AtomicOpsCap: Routing- 32bit+ 64bit+ 128bitCAS-
> DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- LTR-
> 10BitTagReq- OBFF Disabled, ARIFwd+
> AtomicOpsCtl: ReqEn- EgressBlck-
> LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink-
> Retimer- 2Retimers- DRS-
> LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance Preset/De-emphasis: -6dB de-emphasis,
> 0dB preshoot
> LnkSta2: Current De-emphasis Level: -3.5dB,
> EqualizationComplete+ EqualizationPhase1+
> EqualizationPhase2+ EqualizationPhase3+
> LinkEqualizationRequest-
> Retimer- 2Retimers- CrosslinkRes: unsupported
> Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee00000 Data: 0000
> Capabilities: [c0] Subsystem: Lenovo Raven/Raven2 PCIe GPP Bridge
> [6:0]
> Capabilities: [c8] HyperTransport: MSI Mapping Enable+ Fixed+
> Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
> Len=010 <?>
> Capabilities: [150 v2] Advanced Error Reporting
> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
> CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout-
> AdvNonFatalErr-
> CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout-
> AdvNonFatalErr+
> AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn-
> ECRCChkCap- ECRCChkEn-
> MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
> HeaderLog: 00000000 00000000 00000000 00000000
> RootCmd: CERptEn+ NFERptEn+ FERptEn+
> RootSta: CERcvd- MultCERcvd- UERcvd- MultUERcvd-
> FirstFatal- NonFatalMsg- FatalMsg- IntMsg 0
> ErrorSrc: ERR_COR: 0000 ERR_FATAL/NONFATAL: 0000
> Capabilities: [270 v1] Secondary PCI Express
> LnkCtl3: LnkEquIntrruptEn- PerformEqu-
> LaneErrStat: 0
> Capabilities: [2a0 v1] Access Control Services
> ACSCap: SrcValid+ TransBlk+ ReqRedir+ CmpltRedir+
> UpstreamFwd+ EgressCtrl- DirectTrans+
> ACSCtl: SrcValid+ TransBlk- ReqRedir+ CmpltRedir+
> UpstreamFwd+ EgressCtrl- DirectTrans-
> Capabilities: [370 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
> L1_PM_Substates+
> PortCommonModeRestoreTime=0us
> PortTPowerOnTime=10us
> L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2- ASPM_L1.1+
> T_CommonMode=0us LTR1.2_Threshold=176128ns
> L1SubCtl2: T_PwrOn=170us
> Kernel driver in use: pcieport
> 00: 22 10 d3 15 07 04 10 00 00 00 04 06 10 00 81 00
> 10: 00 00 00 00 00 00 00 00 00 01 01 00 f1 f1 00 20
> 20: e0 fc e0 fc 01 e0 11 f0 00 00 00 00 00 00 00 00
> 30: 00 00 00 00 50 00 00 00 00 00 00 00 ff 00 1a 00
> 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 50: 01 58 03 c8 00 00 00 00 10 a0 42 01 22 80 00 00
> 60: 3f 29 00 00 83 78 73 00 42 00 83 f0 00 00 04 00
> 70: 00 00 40 01 18 00 01 00 00 00 00 00 bf 09 70 00
> 80: 26 00 00 00 0e 00 00 00 03 00 1f 00 00 00 00 00
> 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> a0: 05 c0 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> c0: 0d c8 00 00 aa 17 06 37 08 00 03 a8 00 00 00 00
> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>
> 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
> Lexa XT [Radeon PRO WX 3100] (prog-if 00 [VGA controller])
> Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Lexa XT [Radeon
> PRO WX 3100]
> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 49
> IOMMU group: 7
> Region 0: Memory at e0000000 (64-bit, prefetchable) [size=256M]
> Region 2: Memory at f0000000 (64-bit, prefetchable) [size=2M]
> Region 4: I/O ports at f000 [size=256]
> Region 5: Memory at fce00000 (32-bit, non-prefetchable) [size=256K]
> Expansion ROM at 000c0000 [disabled] [size=128K]
> Capabilities: [48] Vendor Specific Information: Len=08 <?>
> Capabilities: [50] Power Management version 3
> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1+,D2+,D3hot+,D3cold+)
> Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
> Capabilities: [58] Express (v2) Legacy Endpoint, MSI 00
> DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us,
> L1 unlimited
> ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
> DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
> RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
> MaxPayload 256 bytes, MaxReadReq 512 bytes
> DevSta: CorrErr+ NonFatalErr+ FatalErr- UnsupReq+ AuxPwr-
> TransPend-
> LnkCap: Port #0, Speed 8GT/s, Width x8, ASPM L1, Exit
> Latency L1 <1us
> ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
> LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 8GT/s, Width x8
> TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> DevCap2: Completion Timeout: Not Supported, TimeoutDis-
> NROPrPrP- LTR+
> 10BitTagComp- 10BitTagReq- OBFF Not Supported,
> ExtFmt+ EETLPPrefix+, MaxEETLPPrefixes 1
> EmergencyPowerReduction Not Supported,
> EmergencyPowerReductionInit-
> FRS-
> AtomicOpsCap: 32bit+ 64bit+ 128bitCAS-
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR-
> 10BitTagReq- OBFF Disabled,
> AtomicOpsCtl: ReqEn+
> LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink-
> Retimer- 2Retimers- DRS-
> LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance-
> SpeedDis-
> Transmit Margin: Normal Operating Range,
> EnterModifiedCompliance- ComplianceSOS-
> Compliance Preset/De-emphasis: -6dB de-emphasis,
> 0dB preshoot
> LnkSta2: Current De-emphasis Level: -3.5dB,
> EqualizationComplete+ EqualizationPhase1+
> EqualizationPhase2+ EqualizationPhase3+
> LinkEqualizationRequest-
> Retimer- 2Retimers- CrosslinkRes: unsupported
> Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
> Address: 00000000fee00000 Data: 0000
> Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1
> Len=010 <?>
> Capabilities: [150 v2] Advanced Error Reporting
> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt-
> RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
> CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout-
> AdvNonFatalErr-
> CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout-
> AdvNonFatalErr+
> AERCap: First Error Pointer: 14, ECRCGenCap+ ECRCGenEn-
> ECRCChkCap+ ECRCChkEn-
> MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
> HeaderLog: 40001001 0000000f 000a0000 00000000
> Capabilities: [200 v1] Physical Resizable BAR
> BAR 0: current size: 256MB, supported: 256MB 512MB 1GB 2GB
> 4GB
> Capabilities: [270 v1] Secondary PCI Express
> LnkCtl3: LnkEquIntrruptEn- PerformEqu-
> LaneErrStat: 0
> Capabilities: [2b0 v1] Address Translation Service (ATS)
> ATSCap: Invalidate Queue Depth: 00
> ATSCtl: Enable+, Smallest Translation Unit: 00
> Capabilities: [2c0 v1] Page Request Interface (PRI)
> PRICtl: Enable+ Reset-
> PRISta: RF- UPRGI- Stopped+
> Page Request Capacity: 00000020, Page Request Allocation:
> 00000020
> Capabilities: [2d0 v1] Process Address Space ID (PASID)
> PASIDCap: Exec+ Priv+, Max PASID Width: 10
> PASIDCtl: Enable- Exec- Priv-
> Capabilities: [320 v1] Latency Tolerance Reporting
> Max snoop latency: 0ns
> Max no snoop latency: 0ns
> Capabilities: [328 v1] Alternative Routing-ID Interpretation (ARI)
> ARICap: MFVC- ACS-, Next Function: 1
> ARICtl: MFVC- ACS-, Function Group: 0
> Capabilities: [370 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
> L1_PM_Substates+
> PortCommonModeRestoreTime=0us
> PortTPowerOnTime=170us
> L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2- ASPM_L1.1+
> T_CommonMode=0us LTR1.2_Threshold=176128ns
> L1SubCtl2: T_PwrOn=170us
> Kernel driver in use: amdgpu
> Kernel modules: amdgpu
> 00: 02 10 85 69 07 04 10 00 00 00 00 03 10 00 80 00
> 10: 0c 00 00 e0 00 00 00 00 0c 00 00 f0 00 00 00 00
> 20: 01 f0 00 00 00 00 e0 fc 00 00 00 00 02 10 0c 0b
> 30: 00 00 e4 fc 48 00 00 00 00 00 00 00 0b 01 00 00
> 40: 00 00 00 00 00 00 00 00 09 50 08 00 02 10 0c 0b
> 50: 01 58 03 f6 08 00 00 00 10 a0 12 00 a1 8f 00 00
> 60: 3f 29 0b 00 83 08 44 00 42 00 83 10 00 00 00 00
> 70: 00 00 00 00 00 00 00 00 00 00 00 00 80 09 70 00
> 80: 40 00 00 00 0e 00 00 00 03 00 1f 00 00 00 00 00
> 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> a0: 05 00 81 00 00 00 e0 fe 00 00 00 00 00 00 00 00
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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