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general protection fault in dc_validate_global_state on raven ridge

Submitted by ojab @ojab

Assigned to Default DRI bug account

Link to original bug (#106276)

Description

Raven ridge APU (2400g), no external GPU, linux-4.17-rc2, libdrm-2.4.91, mesa-18.1.0-rc1, xorg-server-1.19.6, xf86-video-amdgpu-18.0.1.

just happened after starting X:

[Fri Apr 27 08:25:55 2018] general protection fault: 0000 [#1 (closed)] SMP NOPTI
[Fri Apr 27 08:25:55 2018] Modules linked in: nfnetlink_queue nfnetlink_log nfnetlink nfsd auth_rpcgss oid_registry nfs_acl lockd grace sunrpc sit tunnel4 ip_tunnel af_packet bridge stp llc ipv6 ipt_MASQUERADE nf_nat_masquerade_ipv4 xt_conntrack iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_filter ip_tables x_tables tcp_bbr sch_fq_codel arc4 joydev input_leds hid_generic usbhid hid btrfs libcrc32c xor zstd_compress lzo_compress zlib_deflate raid6_pq zstd_decompress xxhash zlib_inflate lzo_decompress amdgpu edac_mce_amd kvm_amd kvm mfd_core chash ath10k_pci gpu_sched drm_kms_helper ath10k_core syscopyarea sysfillrect sysimgblt fb_sys_fops ttm snd_hda_codec_realtek irqbypass ath crc32_pclmul crc32c_intel snd_hda_codec_generic drm snd_hda_codec_hdmi mac80211 evdev pps_ldisc pps_core
[Fri Apr 27 08:25:55 2018] snd_hda_intel drm_panel_orientation_quirks cfbfillrect cfbimgblt snd_hda_codec cfbcopyarea snd_hwdep 8250 i2c_algo_bit snd_hda_core fb xhci_pci sp5100_tco cfg80211 8250_base font snd_pcm xhci_hcd fbdev aesni_intel i2c_piix4 mpt3sas r8169 serial_core snd_timer i2c_core rtc_cmos aes_x86_64 snd crypto_simd cryptd usbcore hwmon video glue_helper soundcore mii backlight raid_class scsi_transport_sas button usb_common acpi_cpufreq processor unix
[Fri Apr 27 08:25:55 2018] CPU: 0 PID: 8835 Comm: Xorg.wrap Tainted: G W T 4.17.0-rc2-ojab #6 (closed)
[Fri Apr 27 08:25:55 2018] RIP: 0010:resource_build_scaling_params+0x733/0x10c0 [amdgpu]
[Fri Apr 27 08:25:55 2018] RSP: 0018:ffffa498c1367b48 EFLAGS: 00010296
[Fri Apr 27 08:25:55 2018] RAX: 3a8d12265423e785 RBX: ffff8f66cb5ace18 RCX: 00000000fffffffe
[Fri Apr 27 08:25:55 2018] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000024ee4a102
[Fri Apr 27 08:25:55 2018] RBP: 000000004ee4a102 R08: 000000000000043a R09: 000000000004ce16
[Fri Apr 27 08:25:55 2018] R10: 7fffffffffffffff R11: 0000000000000001 R12: ffff8f66cb5ace28
[Fri Apr 27 08:25:55 2018] R13: 0000000000000009 R14: 0000000000000000 R15: ffff8f6ded8e1400
[Fri Apr 27 08:25:55 2018] FS: 00007f9e41779700(0000) GS:ffff8f6e5ee00000(0000) knlGS:0000000000000000
[Fri Apr 27 08:25:55 2018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Fri Apr 27 08:25:55 2018] CR2: 00007f9e40dffad3 CR3: 000000008b5d0000 CR4: 00000000003406f0
[Fri Apr 27 08:25:55 2018] Call Trace:
[Fri Apr 27 08:25:55 2018] resource_build_scaling_params_for_context+0x2a/0x50 [amdgpu]
[Fri Apr 27 08:25:55 2018] dc_validate_global_state+0x232/0x2b0 [amdgpu]
[Fri Apr 27 08:25:55 2018] amdgpu_dm_atomic_check+0x399/0x3b0 [amdgpu]
[Fri Apr 27 08:25:55 2018] drm_atomic_check_only+0x360/0x520 [drm]
[Fri Apr 27 08:25:55 2018] ? drm_atomic_add_affected_connectors+0x128/0x140 [drm]
[Fri Apr 27 08:25:55 2018] drm_atomic_commit+0x1e/0x70 [drm]
[Fri Apr 27 08:25:55 2018] restore_fbdev_mode_atomic+0x1a8/0x210 [drm_kms_helper]
[Fri Apr 27 08:25:55 2018] drm_fb_helper_restore_fbdev_mode_unlocked+0x61/0xa0 [drm_kms_helper]
[Fri Apr 27 08:25:55 2018] drm_lastclose+0x30/0xc0 [drm]
[Fri Apr 27 08:25:55 2018] drm_release+0x2ae/0x360 [drm]
[Fri Apr 27 08:25:55 2018] __fput+0xec/0x210
[Fri Apr 27 08:25:55 2018] task_work_run+0x96/0xc0
[Fri Apr 27 08:25:55 2018] exit_to_usermode_loop+0xa5/0xb0
[Fri Apr 27 08:25:55 2018] do_syscall_64+0xed/0x110
[Fri Apr 27 08:25:55 2018] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[Fri Apr 27 08:25:55 2018] RIP: 0033:0x7f9e4105d5c0
[Fri Apr 27 08:25:55 2018] RSP: 002b:00007ffdd8f4bb58 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[Fri Apr 27 08:25:55 2018] RAX: 0000000000000000 RBX: 00007ffdd8f4bbc0 RCX: 00007f9e4105d5c0
[Fri Apr 27 08:25:55 2018] RDX: 00007ffdd8f4bb80 RSI: 00000000c04064a0 RDI: 0000000000000003
[Fri Apr 27 08:25:55 2018] RBP: 0000000000000000 R08: 00007f9e40dff500 R09: 0000000000000000
[Fri Apr 27 08:25:55 2018] R10: 00007ffdd8f4b920 R11: 0000000000000246 R12: 0000000000000003
[Fri Apr 27 08:25:55 2018] R13: 0000000000000001 R14: 0000000000000001 R15: 00007ffdd8f4bbc0
[Fri Apr 27 08:25:55 2018] Code: 48 8b 40 48 e8 cf 10 e3 fb 84 c0 75 70 8b 4b 2c 8b 53 28 44 8b 4b 30 44 8b 43 34 41 8b b7 8c 00 00 00 88 44 24 38 48 8b 44 24
40 <48> 8b 78 10 89 74 24 28 41 8b b7 88 00 00 00 89 74 24 20 41 8b
[Fri Apr 27 08:25:55 2018] RIP: resource_build_scaling_params+0x733/0x10c0 [amdgpu] RSP: ffffa498c1367b48
[Fri Apr 27 08:25:55 2018] ---[ end trace 46e852690de93abb ]---


and next X just hangs doing nothing. Don't know how reproducible it is because I'm not using Xorg due to https://bugs.freedesktop.org/show_bug.cgi?id=106260