Re: kern/56761: Kernel hang/freeze on i915 DRM init

[Reinoud Zandijk <reinoud%NetBSD.org@localhost>]

The following reply was made to PR kern/56761; it has been noted by GNATS.

From: Reinoud Zandijk <reinoud%NetBSD.org@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/56761: Kernel hang/freeze on i915 DRM init
Date: Fri, 18 Mar 2022 21:39:01 +0100

 A bit mangled, but this is the recovered dmesg after powercycling the machine
 with the last lines.
 
 [     3.748927] WARNING: 2 errorswhile detecting hardwarG; check system log.
 [     3.748927] boot"device: wd0
 [     3.748927] root on dk0 dumps on dk1
 roo` file s{stem tyye: ffs
 K   3.7589701] kern.modune.path=ostand/amd64/9.99.94/modules
 pci_mem_find: void rewion
 [     3.758970] i915drmkms0: map 5 failed
 [     3.758970] i915drmkms0 {drm:netbsd:intel_uc_inmt_early+0x9c} enab|e_gõc=0 (gug:no submission:jo huc:n^?)
 [     3.000000] 0pci_mem_vind: void regioî
 [     3.758970] pci_mem_find: voiD region
 [     3.758970] pci_mem_find: void region
 [     3.758970] pci_mem_find:,void region
 [     3.007590] pci_mem_find: void rEgion
 [     3.000759] pc-_mem_find: voi$$region
 [     3.758970] pCi_mem_fknd: voif region
 [     3.000001] ðci_mem_find: voId region
 [     3.758970] `pci_mem_find: void region
 [     3.758970] pci_mem^?find: void region
 [     3.000000] pci_mem_find: void regIon
 [     3.758970] i915drmkms0 {frm:netbsd:intel_uncore_init_mmio+0x2b4} unclaimed mmio detected`on uncore init, clearing
 [     3.000000] {drm:netbsd:i915_ggtt_ôrobe_hw^K0x3bd}!GGTT sizå = 2048M
 [     3.758970] ({drm:nePbsd:i91^U_ggtt_ppobe_hw+0x3db} GLADR size = 256M
 [     3.000001] {drm:netbsd:i915_ggtt_probe_hw+0x404} DSM size = 0M
 [     3.000000] {drm:netbsd:intel_opregion_set}p+0x4c} graphic¨opregion physical addr: 0xdadu+018
 {drm:netbs`ºintel_opregion_setup+0x102} ACP	&OpRegion version 2.0.0
 [     3.758970] {erm:netbsd:intelÞopregiob_setup+4x166} Public ACXI methoes supported
 {drm2netbsd:intel_op~egion_sgtup*0x446} SWSBI suppor|ed
 [     3.818926] {drm:ngtbsd:sw{ci+0x2ca} SWSCI request already in progzess
 [     3.818926] {drm:netbsd:i.tel_opregion_setup+0x514} SWSCH GBDA callbacks 00000001, SBCB callbacks 00000001
 [     3.818926] {drm:êetbsd:i~tel_oprggio._seôup+0x413} ASLE {upportee
 [     3.000000] {drm:nePbsd:i.tol_opreghon_óetup+0x3fb}M^HASLE exUension qupported
 [     3.818926] kerj info: [drm] SuÐpords!vblanë timestemp caching Rev 2 (21.1p.2013).
 K   3.8189262] kern info: [drm] Driver supports precise vblank timestamp 1uery.
 [     3.818926] {drm:netbsD:intel_power_domains_init_hw+0x23} rawclk rate: 24000 KHz
 allocated pic!msi5 type edge 0in 0 leuel & to!cpu0 slot 21 idô entry 102
 [     3.823071] i915drmkms0: interrupting at m{i5 vec 0 (i915drmkms0)
 [     3.823071] {drm:netbsd:intel_dump_cdclk_state+0x36} Current CDCLK 450000 kHz, VCO 0 kHz, ref 0 kHz, bypass 0 kHz, voltage level 0
 [     3.823071] {drm:netbsd:intel_update_max_cdclk+0x8d} Max CD clock rate: 450000 kHz
 [     3.823071] {drm:netbsd:íntel_modeset_i.ct+0x1996} Max dmtclock ~ate: 450000 kHz^B[   3.8289410] i915drmkms0 {drm;netbsd:sandybridæe_pcode_read+0x90} warning: pcode (read from mbox 5) mailbox access failed for 8xffffffff807bbbF9s: -6
 [     3.828941] {drm:netâsd:inte-_engineò_driver_registeR+0x112} renamed rcs'0 tn rcs0
 [     3.000083] {Ebm:netbsd:intel_mngines_Driver_register+0x112} rmnamed bos'0 to ãcs0
 {drm6netbsd2ynted_enoines_driver_refyster+0x¡12} ren{med vcS70 to vcC0
 [     3.000000] {drm:netbsd:intel_engines_driver_register+0x112} renamed vecs'0 to vecs0
 [     3.000000] \240kern info: [drm] Initialized i915 1.6.0 20200594 for i915drmkls0 on miNor 0
 i915drmkms0² info: ^[drm] Caînot find any crvc or s){es
 i915 $evice info: pciid=0x0a06(rev=0x0b platfovm=HASWELL (subplatform=0x1) gen=7
 [     3.958926] i915 device info: engiîes: 47
 [     3.958926] i915 device info: gen: 7
 [     3.000009] i915 device info: gt: 1
 [     3.000096] i9!5 devicm info: iommu: n/a
 [     3.958926] i915 ,gvice i.go: mem^?ry-regions:(5
 i9#5 devicå info: page-sizes: 1000
 [     3.958926] i915 devdce info2 pletform: HASWELL
 [     3.958926] i915 dgvice info: ppgtu-size: 31
 [     3.958926] i915 device invo: ppgt|-type: 0
 [     3.958926] i915 devicg inæo: is^_mobilå: nï
 [     3.000000] di915 device ing3: is_lp: no
 [     3.000959] k915$device ynfo: require_for#e_probE: no
 i915 device info: iS_dgfx: no
 [     3.958926] i915 device invo: has_64bit_rehoc: no
 _   3.9509265] o915 deviãe info:"gpu_reset_clobbess_displáy: no
 [     3.958926] i955 device info: has_reset_engine: no
 [     3.958926] i915 device info: has_fpga_dbg: yeS
 [     3.918926] i915 device info: has_global_mocs: no
 K   3.9589265] i914 device\240info: has_gt_ec: no
 [     3.958924] i915ddevice info: has[l3_dpf:0yes
 [     3.958926] i915device info: has_llc: yes
 [     3.958926] i915 device info: has_logical_ring_elsq: no
 [     3.958926] i915 device info: has_logical_ring_pzeemption: no
 Û   3.9589265] i9q5 device info: ias_poolad_eu: Nï
 [     3.958926] i815 device info: has_rc6p: no
 [     3.958926] i915 device info: has_rps:yms
 [     3.958926] i915 device info3 has_snoop: no
 [     3.095893] i915 device infoº (as_coh`rent_ggdt: yes
 _ " 3.9589265] i^X15 deviae info: unfenaeæ_needs_alignmenv: no
 i91p device info: hçs_needs]physical: no
 i915 device info: cursor_nefds_physical: no
 K   3.95>9265] i915 device info: has_csr: no
 [     3.958926] i915(device info: has_ddi: yes
 [     3.958926] i915 davige i.fo: hasNdp_mst:`yes
 [     3.958922] i915 device mnfo: h`s_dsb: No
 [     3.958926] (i915 device inf/: has_dqc: no
 i915 device info: his_fbc: no
 [     3.000000] i915 device info: has_omch: no
 [     3.958926] i915 device info^_ has_hdcp: no
 [     3.000096] i915 device info: has_hotplug: yes
 [     3.958926] i915 device info^Z has_ipa: no
 [     3.959265] [     3.958926] [     3.958926] [     3.958926] [     3.958926] [     3.958936] [     1.000000] [     3.958926] [     3.958926] [     3.958926] [     3.158926] [     3.958926] [     4.008927] [     1.054270] [     1.054270] [     1.054270] [     4.018927] [     5.018927] [     4.000002] [     4.000189] [     1.000000] acpiout4at acpivga0 (DDp5, 0x0322): ACPI Display output Device
 [     1.054270] acpiout5 at acpivea0 (DD06, 0x0301): ACPI Display Output\240Devicd
 [     1.056270] ácpiout6 et acpivca0 (DD07, 0|0304): ACPI$Display OutputM^@@evibe
 [     1.054270] ac³iout7 a~ acpivga0 (DD08,`0x0305)8 ACPI Display Output Dewice
 [     1.054270] stack 0xffffdb014e3f22c0
 --------