[+cc Kenneth, Alex, Christian, amd-gfx]
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.
>
> 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.g...@amd.com) but that never went
> upstream.
Hi Alex, thanks very much for reporting and bisecting this issue. I
added the author of 0064b0ce85bb and the maintainers of amdgpu.
>From your lspci output, it looks like ASPM L1.2 is enabled for this
device, and we do have a known PCI core issue with L1.2. Linux tries
to configure L1.2 but doesn't have enough information to do it
correctly. We don't have a good fix for this yet, but you could try
the debug patch from here:
https://lore.kernel.org/r/20250418225527.GA169820@bhelgaas
That patch is based on v6.15-rc1, and it looks like you're running a
v5.12 kernel, so it likely won't apply directly, but you may be able
to try a newer kernel or adapt the patch to your v5.12 kernel.
If you do try this out, please collect the complete dmesg log.
Bjorn
> ------------[ 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
