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SubjectRe: Xorg doesn't work anymore after the latest DRM updates
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Hi Christian,


This issue looks similar to the one Mikel Rychliski fixed recently  :
https://patchwork.freedesktop.org/patch/440791. Let us know if this helps.


Regards,

Nirmoy

On 7/3/2021 9:30 AM, Christian Zigotzky wrote:
> Hi All,
>
> Xorg doesn't work anymore after the latest DRM updates. [1]
>
> Error messages:
>
> Jul 03 08:54:51 Fienix systemd[1]: Starting Light Display Manager...
> Jul 03 08:54:51 Fienix systemd[1]: Started Light Display Manager.
> Jul 03 08:54:51 Fienix kernel: BUG: Kernel NULL pointer dereference on
> read at 0x00000010
> Jul 03 08:54:51 Fienix kernel: Faulting instruction address:
> 0xc000000000630750
> Jul 03 08:54:51 Fienix kernel: Oops: Kernel access of bad area, sig:
> 11 [#1]
> Jul 03 08:54:51 Fienix kernel: BE PAGE_SIZE=4K PREEMPT SMP NR_CPUS=4
> CoreNet Generic
> Jul 03 08:54:51 Fienix kernel: Modules linked in: algif_skcipher bnep
> tuner_simple tuner_types tea5767 tuner tda7432 tvaudio msp3400 bttv
> tea575x tveeprom videobuf_dma_sg videobuf_core rc_core videodev mc
> btusb btrtl btbcm btintel bluetooth ecdh_generic ecc uio_pdrv_genirq uio
> Jul 03 08:54:51 Fienix kernel: CPU: 3 PID: 4300 Comm: Xorg.wrap Not
> tainted 5.14.0-a3_A-EON_X5000-07637-g3dbdb38e2869-dirty #1
> Jul 03 08:54:51 Fienix kernel: NIP:  c000000000630750 LR:
> c00000000060fedc CTR: c000000000630728
> Jul 03 08:54:51 Fienix kernel: REGS: c00000008d903470 TRAP: 0300 Not
> tainted  (5.14.0-a3_A-EON_X5000-07637-g3dbdb38e2869-dirty)
> Jul 03 08:54:51 Fienix kernel: MSR:  0000000080029002 <CE,EE,ME>  CR:
> 20000222  XER: 20000000
> Jul 03 08:54:51 Fienix kernel: DEAR: 0000000000000010 ESR:
> 0000000000000000 IRQMASK: 0
>                                GPR00: c00000000060fedc
> c00000008d903710 c00000000190c400 c000000085d59c00
>                                GPR04: c00000008d9035b8
> ffffffffffffffff c0000000870a4900 c000000085b62d00
>                                GPR08: 000000000000000f
> 0000000000000000 c000000000630728 0000000000000003
>                                GPR12: 0000000020000222
> c00000003fffeac0 00000000ffe51070 000000000086007c
>                                GPR16: 0000000000862820
> 00000000ffb7ec68 0000000000000000 00000000ffffffff
>                                GPR20: 00000000c04064a0
> 0000000000450088 00000000ffca79e4 5deadbeef0000122
>                                GPR24: 5deadbeef0000100
> 0000000000000000 c0000000876028f0 c000000080bd4000
>                                GPR28: c000000087603c48
> c000000085d59d78 c000000085d59c00 c000000085d59c78
> Jul 03 08:54:51 Fienix kernel: NIP [c000000000630750]
> .radeon_ttm_bo_destroy+0x28/0xc0
> Jul 03 08:54:51 Fienix kernel: LR [c00000000060fedc]
> .ttm_bo_put+0x2ec/0x344
> Jul 03 08:54:51 Fienix kernel: Call Trace:
> Jul 03 08:54:51 Fienix kernel: [c00000008d903710] [c00000000060fbe4]
> .ttm_bo_cleanup_memtype_use+0x54/0x60 (unreliable)
> Jul 03 08:54:51 Fienix kernel: [c00000008d903790] [c00000000060fedc]
> .ttm_bo_put+0x2ec/0x344
> Jul 03 08:54:51 Fienix kernel: [c00000008d903820] [c000000000630b50]
> .radeon_bo_unref+0x28/0x3c
> Jul 03 08:54:51 Fienix kernel: [c00000008d9038a0] [c0000000006d1f6c]
> .radeon_vm_fini+0x1b0/0x1b8
> Jul 03 08:54:51 Fienix kernel: [c00000008d903940] [c000000000618e38]
> .radeon_driver_postclose_kms+0x128/0x178
> Jul 03 08:54:51 Fienix kernel: [c00000008d9039e0] [c0000000005deb14]
> .drm_file_free+0x1d8/0x278
> Jul 03 08:54:51 Fienix kernel: [c00000008d903aa0] [c0000000005def00]
> .drm_release+0x64/0xc8
> Jul 03 08:54:51 Fienix kernel: [c00000008d903b30] [c00000000017636c]
> .__fput+0x11c/0x25c
> Jul 03 08:54:51 Fienix kernel: [c00000008d903bd0] [c00000000008b1e8]
> .task_work_run+0xa4/0xbc
> Jul 03 08:54:51 Fienix kernel: [c00000008d903c70] [c000000000004bf4]
> .do_notify_resume+0x144/0x2f0
> Jul 03 08:54:51 Fienix kernel: [c00000008d903d70] [c00000000000b380]
> .syscall_exit_prepare+0x110/0x130
> Jul 03 08:54:51 Fienix kernel: [c00000008d903e10] [c000000000000688]
> system_call_common+0x100/0x1fc
> Jul 03 08:54:51 Fienix kernel: --- interrupt: c00 at 0x3f4f58
> Jul 03 08:54:51 Fienix kernel: NIP:  00000000003f4f58 LR:
> 00000000003f4f2c CTR: 0000000000000000
> Jul 03 08:54:51 Fienix kernel: REGS: c00000008d903e80 TRAP: 0c00 Not
> tainted  (5.14.0-a3_A-EON_X5000-07637-g3dbdb38e2869-dirty)
> Jul 03 08:54:51 Fienix kernel: MSR:  000000000002d002 <CE,EE,PR,ME> 
> CR: 20000420  XER: 00000000
> Jul 03 08:54:51 Fienix kernel: IRQMASK: 0
>                                GPR00: 0000000000000006
> 00000000ffca66a0 00000000f798a310 0000000000000000
>                                GPR04: 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000
>                                GPR08: 0000000000000000
> 0000000000000000 0000000000000000 0000000000000000
>                                GPR12: 0000000000000000
> 000000000044fff4 00000000ffe51070 000000000086007c
>                                GPR16: 0000000000862820
> 00000000ffb7ec68 0000000000000000 00000000ffffffff
>                                GPR20: 00000000c04064a0
> 0000000000450088 00000000ffca79e4 00000000004317ac
>                                GPR24: 00000000004317b8
> 00000000ffca66d0 0000000000000001 00000000ffca673c
>                                GPR28: 0000000000000001
> 0000000000000000 000000000041cff4 0000000000000003
> Jul 03 08:54:51 Fienix kernel: NIP [00000000003f4f58] 0x3f4f58
> Jul 03 08:54:51 Fienix kernel: LR [00000000003f4f2c] 0x3f4f2c
> Jul 03 08:54:51 Fienix kernel: --- interrupt: c00
> Jul 03 08:54:51 Fienix kernel: Instruction dump:
> Jul 03 08:54:51 Fienix kernel: 40c2fff4 4e800020 7c0802a6 fbc1fff0
> f8010010 3bc3ff88 fbe1fff8 38a0ffff
> Jul 03 08:54:51 Fienix kernel: f821ff81 7c7f1b78 e9230168 7fc3f378
> <80890010> 4bffff51 e87f0208 38631df8
> Jul 03 08:54:51 Fienix kernel: ---[ end trace ddf73d2d70058380 ]---
> Jul 03 08:54:51 Fienix kernel:
> Jul 03 08:54:51 Fienix systemd[1]: lightdm.service: Main process
> exited, code=exited, status=1/FAILURE
> Jul 03 08:54:51 Fienix systemd[1]: lightdm.service: Failed with result
> 'exit-code'.
> Jul 03 08:54:51 Fienix avahi-daemon[3857]: Registering new address
> record for 2a02:8109:89c0:ebfc:d372:f06c:9247:7d54 on enP4096p4s4.*.
> Jul 03 08:54:51 Fienix systemd[1]: lightdm.service: Scheduled restart
> job, restart counter is at 1.
> Jul 03 08:54:51 Fienix systemd[1]: Stopped Light Display Manager.
>
> ----
> Systems: A-EON AmigaOne X1000 and X5000 with Radeon HD6970 graphics
> cards. [2] [3] [4]
>
> The biggest problem is, that I don't have time for bisecting and
> fixing this issue.
>
> Cheers,
> Christian
>
> [1]
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%2Fcommit%2F%3Fid%3De058a84bfddc42ba356a2316f2cf1141974625c9&amp;data=04%7C01%7Cnirmoy.das%40amd.com%7C768265d3eac043d86e8408d93df546b5%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637608946231764861%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=HuEHizNvWrFmdqsQRErO1ie6Ora83sceTEphzovMzWI%3D&amp;reserved=0
> [2]
> https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwiki.amiga.org%2Findex.php%3Ftitle%3DX5000&amp;data=04%7C01%7Cnirmoy.das%40amd.com%7C768265d3eac043d86e8408d93df546b5%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637608946231774816%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=bQ9Gm%2BVyEldUEj1hhCj4HPHlb799E3d3MRkUJl0gYzw%3D&amp;reserved=0
> [3]
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FAmigaOne_X1000&amp;data=04%7C01%7Cnirmoy.das%40amd.com%7C768265d3eac043d86e8408d93df546b5%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637608946231774816%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=iDPYGp1%2B7N5DUtNX0rcDqA9MkQPjw1EfFGW%2BD2aqc3g%3D&amp;reserved=0
> [4]
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fforum.hyperion-entertainment.com%2Fviewtopic.php%3Ff%3D58%26t%3D4378&amp;data=04%7C01%7Cnirmoy.das%40amd.com%7C768265d3eac043d86e8408d93df546b5%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637608946231774816%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&amp;sdata=ti%2FY3avH3zJUjJ5852lLYUtirhzuKqqmW1zwUcp2u0A%3D&amp;reserved=0

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