[Bug 196273] Loss of video output and system freezes *ERROR* Couldn't read SADs: 0

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=196273

--- Comment #12 from Olaf H B (olaf at seldiame.net) ---
Got it.

I have the evidence with simbols.

Video output is frozen but cursor is moveable. Although I can't go to a tty via
CTR+ALT+fn

I can use the computer via ssh.

This is the error in dmesg:


[138113.241913] traps: Web Content[30166] general protection ip:7f9da4a25db8
sp:7ffcad46f582 error:0 in libxul.so[7f9da25e3000+4653000]
[147737.047512] traps: cinnamon[4977] trap invalid opcode ip:7fd7d11ed9ef
sp:7ffe27732750 error:0 in libmozjs-24.so[7fd7d1173000+2ad000]
[164593.296815] cinnamon[6950]: segfault at d60 ip 00007f29d717264e sp
00007fff55010f68 error 4 in libcairo.so.2.11400.8[7f29d70fb000+122000]
[164632.261892] kernel tried to execute NX-protected page - exploit attempt?
(uid: 0)
[164632.262154] BUG: unable to handle kernel paging request at ffffffffa01e0216
[164632.262442] IP: pp_ip_funcs+0xfcb6/0xfffffffffffb1aa0 [amdgpu]
[164632.262678] PGD 1e24067 
[164632.262681] P4D 1e24067 
[164632.262842] PUD 1e25063 
[164632.263005] PMD 4233d2067 
[164632.263166] PTE 8000000417334161

[164632.263430] Oops: 0011 [#1] SMP
[164632.263465] Modules linked in: kvm_amd kvm amdgpu irqbypass aesni_intel
aes_x86_64 crypto_simd cryptd glue_helper mfd_core acpi_cpufreq backlight ttm
[164632.263627] CPU: 3 PID: 2797 Comm: amdgpu_cs:0 Not tainted 4.12.0 #7
[164632.263688] Hardware name: To be filled by O.E.M. To be filled by
O.E.M./M5A97 R2.0, BIOS 2603 06/26/2015
[164632.263776] task: ffff8804289c6600 task.stack: ffffc90002f50000
[164632.263892] RIP: 0010:pp_ip_funcs+0xfcb6/0xfffffffffffb1aa0 [amdgpu]
[164632.263955] RSP: 0018:ffffc90002f53d68 EFLAGS: 00010286
[164632.264013] RAX: 0000000000000000 RBX: ffff880425046800 RCX:
0000000000000001
[164632.264080] RDX: 0000000000000000 RSI: 0000000000000001 RDI:
ffff8804289c6600
[164632.264148] RBP: ffffffff814bed80 R08: 0000000000000000 R09:
0000000000000000
[164632.264215] R10: 0000000000000000 R11: 0000000000000000 R12:
00000000c0186444
[164632.264282] R13: ffff880427323000 R14: ffffc90002f53db0 R15:
ffffc90002f53e60
[164632.264350] FS:  00007f69bb16a700(0000) GS:ffff88042dc00000(0000)
knlGS:0000000000000000
[164632.264425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[164632.264482] CR2: ffffffffa01e0216 CR3: 000000041717d000 CR4:
00000000000406e0
[164632.264552] Call Trace:
[164632.264624]  ? amdgpu_cs_find_mapping+0xa0/0xa0 [amdgpu]
[164632.264681]  ? trace_hardirqs_on+0xd/0x10
[164632.264757]  ? amdgpu_drm_ioctl+0x59/0xa0 [amdgpu]
[164632.264809]  ? do_vfs_ioctl+0x9e/0x6c0
[164632.264849]  ? __fget+0x10c/0x210
[164632.264886]  ? __fget+0x5/0x210
[164632.264923]  ? SyS_ioctl+0x4c/0x90
[164632.264962]  ? entry_SYSCALL_64_fastpath+0x18/0xad
[164632.265037] Code: 00 41 4d 44 47 50 55 5f 47 45 4d 5f 4d 4d 41 50 00 41 4d
44 47 50 55 5f 43 54 58 00 41 4d 44 47 50 55 5f 42 4f 5f 4c 49 53 54 00 <41> 4d
44 47 50 55 5f 43 53 00 41 4d 44 47 50 55 5f 49 4e 46 4f 
[164632.265389] RIP: pp_ip_funcs+0xfcb6/0xfffffffffffb1aa0 [amdgpu] RSP:
ffffc90002f53d68
[164632.265462] CR2: ffffffffa01e0216
[164632.285886] ---[ end trace 185809306e39b4c5 ]---

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