Bug 199545

Hello!

I am not a programmer, just an ordinary user who wants to improve the kernel. So please forgive me if I make any mistakes.


Bug description:

Very often I can not boot into graphical mode. The machine gets stuck when starting the x-server with the backtrace as shown below. This happens 60% of all boot attempts. When I get this error I can not reboot properly but have to use the magic sysrq key (control + alt + shift + print + B) to force a hard reset. 

This bug has been pestering for more than 3 years, running kernels from  3.6 to now 4.9 and even the unstable kernels as well (I am using Debian stable). I reported this bug years ago but nothing happened.


Reproducibility: 

With every restart I have only a 30% chance of successfully booting into graphical mode.


Backtrace:

11:04:38 my_machine kernel: [   33.972406] [drm:radeon_invalid_rreg [radeon]] *ERROR* Invalid callback to read register 0x00DC
 11:04:38 my_machine kernel: [   33.972529] ------------[ cut here ]------------
 11:04:38 my_machine kernel: [   33.972531] kernel BUG at /build/linux-fHlJSJ/linux-4.12.6/drivers/gpu/drm/radeon/radeon_asic.c:55!
 11:04:38 my_machine kernel: [   33.972604] invalid opcode: 0000 [#1] SMP
 11:04:38 my_machine kernel: [   33.972638] Modules linked in: cpufreq_powersave cpufreq_conservative cpufreq_userspace fuse amdkfd radeon btusb btrtl btbcm btintel bluetooth edac_mce_amd kvm_amd msi_wmi sparse_keymap kvm snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic ecdh_generic rfkill irqbypass snd_hda_intel snd_hda_codec ttm snd_hda_core evdev pcspkr joydev drm_kms_helper snd_hwdep serio_raw k10temp drm snd_pcm sg shpchp wmi snd_timer button battery video i2c_algo_bit sp5100_tco snd acpi_cpufreq ac soundcore ip_tables x_tables autofs4 ext4 crc16 jbd2 fscrypto mbcache algif_skcipher af_alg dm_crypt dm_mod hid_generic usbhid sr_mod hid cdrom sd_mod ata_generic crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel pcbc ohci_pci aesni_intel aes_x86_64 crypto_simd glue_helper cryptd psmouse ahci pata_atiixp
 11:04:38 my_machine kernel: [   33.973214]  libahci sdhci_pci sdhci mmc_core alx mdio xhci_pci xhci_hcd ehci_pci i2c_piix4 ohci_hcd libata ehci_hcd usbcore scsi_mod usb_common thermal
 11:04:38 my_machine kernel: [   33.973332] CPU: 3 PID: 630 Comm: Xorg Not tainted 4.12.0-1-amd64 #1 Debian 4.12.6-1
 11:04:38 my_machine kernel: [   33.973392] Hardware name: Micro-Star International Co., Ltd. GX70 3CC/MS-176K, BIOS E176KAMS.10F 12/02/2013
 11:04:38 my_machine kernel: [   33.973467] task: ffff933ab05be040 task.stack: ffffb4dec1544000
 11:04:38 my_machine kernel: [   33.973543] RIP: 0010:radeon_invalid_rreg+0x1c/0x20 [radeon]
 11:04:38 my_machine kernel: [   33.973590] RSP: 0018:ffffb4dec15476a8 EFLAGS: 00010286
 11:04:38 my_machine kernel: [   33.973632] RAX: 0000000000000000 RBX: ffff933ab2f11300 RCX: 0000000000000000
 11:04:38 my_machine kernel: [   33.973687] RDX: 0000000000000000 RSI: ffff933abed8dee8 RDI: ffff933abed8dee8
 11:04:38 my_machine kernel: [   33.973742] RBP: 0000000000000001 R08: 0000000000000000 R09: 00000000000003dd
 11:04:38 my_machine kernel: [   33.973797] R10: 000000000000f0f0 R11: 0000000000000001 R12: 0000000000000000
 11:04:38 my_machine kernel: [   33.973852] R13: 0000000000000000 R14: 0000000000000000 R15: 00000000000000dc
 11:04:38 my_machine kernel: [   33.973908] FS:  00007f8f07acaa40(0000) GS:ffff933abed80000(0000) knlGS:0000000000000000
 11:04:38 my_machine kernel: [   33.973970] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 11:04:38 my_machine kernel: [   33.974015] CR2: 00007fbe33ad15d8 CR3: 0000000233b55000 CR4: 00000000000406e0
 11:04:38 my_machine kernel: [   33.974071] Call Trace:
 11:04:38 my_machine kernel: [   33.974127]  ? atom_get_src_int+0x6b/0x680 [radeon]
 11:04:38 my_machine kernel: [   33.974200]  ? atom_op_mask+0xce/0x250 [radeon]
 11:04:38 my_machine kernel: [   33.974270]  ? atom_execute_table_locked+0x132/0x380 [radeon]
 11:04:38 my_machine kernel: [   33.974347]  ? atom_op_calltable+0xad/0x120 [radeon]
 11:04:38 my_machine kernel: [   33.977653]  ? atom_execute_table_locked+0x132/0x380 [radeon]
 11:04:38 my_machine kernel: [   33.980931]  ? atom_op_calltable+0xad/0x120 [radeon]
 11:04:38 my_machine kernel: [   33.984178]  ? atom_execute_table_locked+0x132/0x380 [radeon]
 11:04:38 my_machine kernel: [   33.987409]  ? atom_execute_table_scratch_unlocked+0x59/0x70 [radeon]
 11:04:38 my_machine kernel: [   33.990622]  ? atom_execute_table+0x2e/0x50 [radeon]
 11:04:38 my_machine kernel: [   33.993801]  ? atom_asic_init+0x147/0x1b0 [radeon]
 11:04:38 my_machine kernel: [   33.996972]  ? si_resume+0x19/0x80 [radeon]
 11:04:38 my_machine kernel: [   34.000092]  ? radeon_resume_kms+0x98/0x3a0 [radeon]
 11:04:38 my_machine kernel: [   34.003179]  ? __pci_set_master+0x31/0xd0
 11:04:38 my_machine kernel: [   34.006263]  ? vga_switcheroo_set_dynamic_switch+0x80/0x80
 11:04:38 my_machine kernel: [   34.009374]  ? radeon_pmops_runtime_resume+0x71/0xb0 [radeon]
 11:04:38 my_machine kernel: [   34.012449]  ? pci_pm_runtime_resume+0x78/0xa0
 11:04:38 my_machine kernel: [   34.015501]  ? __rpm_callback+0xc1/0x1f0
 11:04:38 my_machine kernel: [   34.018525]  ? vga_switcheroo_set_dynamic_switch+0x80/0x80
 11:04:38 my_machine kernel: [   34.021527]  ? rpm_callback+0x1f/0x70
 11:04:38 my_machine kernel: [   34.024468]  ? vga_switcheroo_set_dynamic_switch+0x80/0x80
 11:04:38 my_machine kernel: [   34.027364]  ? rpm_resume+0x4b3/0x6d0
 11:04:38 my_machine kernel: [   34.030255]  ? atom_op_or+0xdc/0x1e0 [radeon]
 11:04:38 my_machine kernel: [   34.033090]  ? __pm_runtime_resume+0x47/0x70
 11:04:38 my_machine kernel: [   34.035917]  ? radeon_driver_open_kms+0x33/0x190 [radeon]
 11:04:38 my_machine kernel: [   34.038731]  ? drm_open+0x1f0/0x400 [drm]
 11:04:38 my_machine kernel: [   34.041518]  ? drm_stub_open+0xb4/0xf0 [drm]
 11:04:38 my_machine kernel: [   34.044288]  ? chrdev_open+0xbb/0x1d0
 11:04:38 my_machine kernel: [   34.047046]  ? cdev_put+0x20/0x20
 11:04:38 my_machine kernel: [   34.049802]  ? do_dentry_open+0x1d7/0x2d0
 11:04:38 my_machine kernel: [   34.052546]  ? path_openat+0x63b/0x1440
 11:04:38 my_machine kernel: [   34.055272]  ? generic_perform_write+0x12b/0x1b0
 11:04:38 my_machine kernel: [   34.057993]  ? do_filp_open+0x99/0x110
 11:04:38 my_machine kernel: [   34.060717]  ? __check_object_size+0xb3/0x18e
 11:04:38 my_machine kernel: [   34.063449]  ? __alloc_fd+0x44/0x170
 11:04:38 my_machine kernel: [   34.066171]  ? do_sys_open+0x12e/0x210
 11:04:38 my_machine kernel: [   34.068905]  ? do_sys_open+0x12e/0x210
 11:04:38 my_machine kernel: [   34.071625]  ? system_call_fast_compare_end+0xc/0x97
 11:04:38 my_machine kernel: [   34.074355] Code: 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 89 f1 48 c7 c2 88 a0 a8 c0 31 f6 48 c7 c7 b0 80 a9 c0 e8 84 d9 d9 ff <0f> 0b 66 90 0f 1f 44 00 00 53 8b 87 68 01 00 00 48 89 fb 48 81 
 11:04:38 my_machine kernel: [   34.077327] RIP: radeon_invalid_rreg+0x1c/0x20 [radeon] RSP: ffffb4dec15476a8
 11:04:38 my_machine kernel: [   34.080281] ---[ end trace 7e108cf119f9bc7c ]---


Thank you for your time and effort!