Comment # 23
on bug 94900
from Alex
This also happens 100% of the time under Faeria and Rocket League. The bug that appeared during a Rocket League session : [36447.794626] BUG: unable to handle kernel paging request at ffffc90401d40ffc [36447.794656] IP: [<ffffffffc023c79a>] radeon_ring_backup+0xda/0x190 [radeon] [36447.794697] PGD 40e099067 PUD 0 [36447.794710] Oops: 0000 [#1] SMP [36447.794723] Modules linked in: pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) snd_hrtimer vboxdrv(OE) binfmt_misc intel_rapl x86_pkg_te mp_thermal intel_powerclamp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd serio_raw hid_logitech_hidpp lpc_ich joydev input_leds snd_hda_codec_realtek arc4 snd_hda_codec_hdmi snd_hda_codec_generic ath9k ath9k_ common snd_usb_audio ath9k_hw snd_usbmidi_lib ath mac80211 cfg80211 snd_hda_intel snd_hda_codec snd_ctxfi snd_hda_core snd_hwdep snd_seq_midi snd_seq_midi_event snd_pcm snd_rawmidi snd_seq snd_seq_device snd_timer snd mei_me mei soundcore tpm_infineon shpchp mac_hid it87 hwmon_vid co retemp parport_pc ppdev lp parport autofs4 hid_logitech_dj uas usb_storage wacom hid_generic usbhid [36447.794999] hid mxm_wmi amdkfd amd_iommu_v2 radeon psmouse firewire_ohci firewire_core crc_itu_t atl1c i2c_algo_bit ttm ahci drm_kms_helpe r libahci syscopyarea sysfillrect sysimgblt fb_sys_fops e1000e drm ptp pps_core video fjes wmi [36447.795083] CPU: 2 PID: 3667 Comm: Xorg Tainted: G OE 4.4.0-36-generic #55-Ubuntu [36447.795109] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./Z77X-UD5H, BIOS F4 03/09/2012 [36447.795137] task: ffff8804072c5280 ti: ffff8800d9ed0000 task.ti: ffff8800d9ed0000 [36447.795158] RIP: 0010:[<ffffffffc023c79a>] [<ffffffffc023c79a>] radeon_ring_backup+0xda/0x190 [radeon] [36447.795197] RSP: 0000:ffff8800d9ed3c48 EFLAGS: 00010202 [36447.795213] RAX: ffffc90002313000 RBX: 00000000ffffffff RCX: 0000000000000000 [36447.795233] RDX: 0000000000000000 RSI: ffffc90401d40ffc RDI: 0000000000096440 [36447.795253] RBP: ffff8800d9ed3c78 R08: ffff88010c011e00 R09: 8000000000000163 [36447.795274] R10: 0000000000000000 R11: ffffffff81ccf5ea R12: ffff8800358494e0 [36447.795294] R13: ffff8800358494b8 R14: 0000000000025911 R15: ffff8800d9ed3cc0 [36447.795314] FS: 00007fc9397a1a00(0000) GS:ffff88041ed00000(0000) knlGS:0000000000000000 [36447.795337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [36447.795354] CR2: ffffc90401d40ffc CR3: 000000040a177000 CR4: 00000000000406e0 [36447.795374] Stack: [36447.795380] ffff880035848000 ffff880035848000 ffff8800358494e0 ffff8800d9ed3cc0 [36447.795406] ffff8800358494e0 0000000000000000 ffff8800d9ed3d30 ffffffffc020acdd [36447.795430] ffff880035848740 00ff880400000001 ffff880035848018 ffff8803216e3000 [36447.795455] Call Trace: [36447.795472] [<ffffffffc020acdd>] radeon_gpu_reset+0xcd/0x330 [radeon] [36447.795492] [<ffffffff815ac18d>] ? fence_wait_timeout+0x7d/0x160 [36447.795521] [<ffffffffc023a51e>] radeon_gem_handle_lockup.part.3+0xe/0x20 [radeon] [36447.795553] [<ffffffffc023b4bf>] radeon_gem_wait_idle_ioctl+0xdf/0x130 [radeon] [36447.795584] [<ffffffffc003b742>] drm_ioctl+0x152/0x540 [drm] [36447.795611] [<ffffffffc023b3e0>] ? radeon_gem_busy_ioctl+0xe0/0xe0 [radeon] [36447.795639] [<ffffffffc020804c>] radeon_drm_ioctl+0x4c/0x80 [radeon] [36447.795659] [<ffffffff81220c1f>] do_vfs_ioctl+0x29f/0x490 [36447.795677] [<ffffffff81103471>] ? SyS_futex+0x81/0x180 [36447.795693] [<ffffffff81220e89>] SyS_ioctl+0x79/0x90 [36447.795709] [<ffffffff8182dfb2>] entry_SYSCALL_64_fastpath+0x16/0x71 [36447.795727] Code: fb c0 48 85 c0 49 89 07 74 6c 41 8d 7e ff 31 d2 48 c1 e7 02 eb 07 49 8b 07 48 83 c2 04 49 8b 74 24 08 8d 4b 01 89 db 48 8 d 34 9e <8b> 36 89 34 10 41 23 4c 24 54 48 39 d7 89 cb 75 da 4c 89 ef e8 [36447.795850] RIP [<ffffffffc023c79a>] radeon_ring_backup+0xda/0x190 [radeon] [36447.795882] RSP <ffff8800d9ed3c48> [36447.795893] CR2: ffffc90401d40ffc [36447.809449] ---[ end trace ffefc2413ee46759 ]---
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