Mar 10 13:23:57 bigbrock kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000068 Mar 10 13:23:57 bigbrock kernel: IP: [] radeon_sa_bo_new+0x270/0x4a0 [radeon] Mar 10 13:23:57 bigbrock kernel: PGD 0 Mar 10 13:23:57 bigbrock kernel: Oops: 0000 [#1] PREEMPT SMP Mar 10 13:23:57 bigbrock kernel: Modules linked in: rfcomm cmac ecb fuse uas usb_storage snd_hda_codec_hdmi joydev mousedev bnep btusb btrtl btbcm btintel bluetooth input_leds led_class rtl8xxxu arc4 h Mar 10 13:23:57 bigbrock kernel: ptp soundcore mei pps_core shpchp i2c_i801 serio_raw lpc_ich fjes tpm_tis tpm thermal battery video processor button sch_fq_codel ip_tables x_tables ext4 crc16 mbcache Mar 10 13:23:57 bigbrock kernel: CPU: 0 PID: 2277 Comm: chromium Not tainted 4.4.5-1-ARCH #1 Mar 10 13:23:57 bigbrock kernel: Hardware name: Dell Inc. OptiPlex 9020/00V62H, BIOS A13 08/24/2015 Mar 10 13:23:57 bigbrock kernel: task: ffff8803de3f8000 ti: ffff8803bd68c000 task.ti: ffff8803bd68c000 Mar 10 13:23:57 bigbrock kernel: RIP: 0010:[] [] radeon_sa_bo_new+0x270/0x4a0 [radeon] Mar 10 13:23:57 bigbrock kernel: RSP: 0018:ffff8803bd68f9d8 EFLAGS: 00010282 Mar 10 13:23:57 bigbrock kernel: RAX: 0000000000000000 RBX: ffff8804115399a8 RCX: ffff880411539a50 Mar 10 13:23:57 bigbrock kernel: RDX: 0000000000000000 RSI: ffff880352fe8b40 RDI: ffff880352fe8b40 Mar 10 13:23:57 bigbrock kernel: RBP: ffff8803bd68fad0 R08: 0000000000001b80 R09: 0000000000000100 Mar 10 13:23:57 bigbrock kernel: R10: 0000000000000000 R11: ffff8802d16d73c0 R12: ffff880411539a50 Mar 10 13:23:57 bigbrock kernel: R13: ffff880352fe8b40 R14: ffff880411539a40 R15: 0000000000000020 Mar 10 13:23:57 bigbrock kernel: FS: 00007feb1390d700(0000) GS:ffff88042dc00000(0000) knlGS:0000000000000000 Mar 10 13:23:57 bigbrock kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 10 13:23:57 bigbrock kernel: CR2: 0000000000000068 CR3: 000000041a03b000 CR4: 00000000001406f0 Mar 10 13:23:57 bigbrock kernel: Stack: Mar 10 13:23:57 bigbrock kernel: ffff8803de3f8000 ffff8803de3f8000 ffff880411538000 ffff8803bd68fbb8 Mar 10 13:23:57 bigbrock kernel: 0000010000001b80 ffff880411539a50 0000000000000002 ffffffff810b8684 Mar 10 13:23:57 bigbrock kernel: ffff880411538000 00000000001ce234 ffff880411538d70 ffff8803de24a200 Mar 10 13:23:57 bigbrock kernel: Call Trace: Mar 10 13:23:57 bigbrock kernel: [] ? __wake_up+0x44/0x50 Mar 10 13:23:57 bigbrock kernel: [] radeon_ib_get+0x33/0xc0 [radeon] Mar 10 13:23:57 bigbrock kernel: [] radeon_cs_ioctl+0x231/0x7c0 [radeon] Mar 10 13:23:57 bigbrock kernel: [] drm_ioctl+0x152/0x540 [drm] Mar 10 13:23:57 bigbrock kernel: [] ? radeon_cs_parser_init+0x4d0/0x4d0 [radeon] Mar 10 13:23:57 bigbrock kernel: [] radeon_drm_ioctl+0x4c/0x80 [radeon] Mar 10 13:23:57 bigbrock kernel: [] do_vfs_ioctl+0x298/0x480 Mar 10 13:23:57 bigbrock kernel: [] ? __fget+0x77/0xb0 Mar 10 13:23:57 bigbrock kernel: [] SyS_ioctl+0x79/0x90 Mar 10 13:23:57 bigbrock kernel: [] entry_SYSCALL_64_fastpath+0x12/0x6d Mar 10 13:23:57 bigbrock kernel: Code: 85 38 ff ff ff 76 b1 49 83 c7 04 49 83 c4 10 4d 8d 6e f0 49 83 ff 20 89 85 38 ff ff ff 75 a7 4d 85 ed 74 24 49 8b 45 30 4c 89 ef <8b> 40 68 83 84 85 70 ff ff ff 0 Mar 10 13:23:57 bigbrock kernel: RIP [] radeon_sa_bo_new+0x270/0x4a0 [radeon] Mar 10 13:23:57 bigbrock kernel: RSP Mar 10 13:23:57 bigbrock kernel: CR2: 0000000000000068 Mar 10 13:23:57 bigbrock kernel: ---[ end trace f6b6959e65e752cf ]--- Mar 10 13:23:57 bigbrock kernel: note: chromium[2277] exited with preempt_count 1 Mar 10 13:24:00 bigbrock kernel: ------------[ cut here ]------------ Mar 10 13:24:00 bigbrock kernel: kernel BUG at drivers/gpu/drm/radeon/radeon_sa.c:321! Mar 10 13:24:00 bigbrock kernel: invalid opcode: 0000 [#2] PREEMPT SMP Mar 10 13:24:00 bigbrock kernel: Modules linked in: rfcomm cmac ecb fuse uas usb_storage snd_hda_codec_hdmi joydev mousedev bnep btusb btrtl btbcm btintel bluetooth input_leds led_class rtl8xxxu arc4 h Mar 10 13:24:00 bigbrock kernel: ptp soundcore mei pps_core shpchp i2c_i801 serio_raw lpc_ich fjes tpm_tis tpm thermal battery video processor button sch_fq_codel ip_tables x_tables ext4 crc16 mbcache Mar 10 13:24:00 bigbrock kernel: CPU: 1 PID: 806 Comm: gnome-shell Tainted: G D 4.4.5-1-ARCH #1 Mar 10 13:24:00 bigbrock kernel: Hardware name: Dell Inc. OptiPlex 9020/00V62H, BIOS A13 08/24/2015 Mar 10 13:24:00 bigbrock kernel: task: ffff88041916c4c0 ti: ffff88040342c000 task.ti: ffff88040342c000 Mar 10 13:24:00 bigbrock kernel: RIP: 0010:[] [] radeon_sa_bo_new+0x486/0x4a0 [radeon] Mar 10 13:24:00 bigbrock kernel: RSP: 0018:ffff88040342fa08 EFLAGS: 00010287 Mar 10 13:24:00 bigbrock kernel: RAX: 0000000000000000 RBX: ffff88040342fba0 RCX: 0000000000000178 Mar 10 13:24:00 bigbrock kernel: RDX: ffff88040342fba0 RSI: ffff8804115399a8 RDI: ffff880411538000 Mar 10 13:24:00 bigbrock kernel: RBP: ffff88040342fb00 R08: 0000000000000100 R09: ffffffffa077a5c3 Mar 10 13:24:00 bigbrock kernel: R10: ffff88040342fdb8 R11: ffffffffa0794f08 R12: ffff880411538000 Mar 10 13:24:00 bigbrock kernel: R13: 0000000000000000 R14: 0000000000000003 R15: ffff88040342fdb8 Mar 10 13:24:00 bigbrock kernel: FS: 00007f0cdd9c19c0(0000) GS:ffff88042dc40000(0000) knlGS:0000000000000000 Mar 10 13:24:00 bigbrock kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 10 13:24:00 bigbrock kernel: CR2: 0000206df20be008 CR3: 0000000408453000 CR4: 00000000001406e0 Mar 10 13:24:00 bigbrock kernel: Stack: Mar 10 13:24:00 bigbrock kernel: ffffffff81b1c250 ffffffff81b1c260 ffffffff81227d20 ffffea000bce0bc0 Mar 10 13:24:00 bigbrock kernel: 02fffe0000000000 ffff8802f382f000 ffff88042dff5000 0000000000000000 Mar 10 13:24:00 bigbrock kernel: ffff88040342fa88 0000000000000282 0000000000000002 0000000000000000 Mar 10 13:24:00 bigbrock kernel: Call Trace: Mar 10 13:24:00 bigbrock kernel: [] ? ep_scan_ready_list+0x1d0/0x1d0 Mar 10 13:24:00 bigbrock kernel: [] ? __free_pages+0x22/0x30 Mar 10 13:24:00 bigbrock kernel: [] ? free_pages.part.23+0x40/0x50 Mar 10 13:24:00 bigbrock kernel: [] ? free_pages+0x13/0x20 Mar 10 13:24:00 bigbrock kernel: [] ? poll_freewait+0x8a/0xa0 Mar 10 13:24:00 bigbrock kernel: [] radeon_ib_get+0x33/0xc0 [radeon] Mar 10 13:24:00 bigbrock kernel: [] radeon_vm_bo_update+0x1c0/0x720 [radeon] Mar 10 13:24:00 bigbrock kernel: [] ? kmem_cache_alloc_trace+0x1eb/0x210 Mar 10 13:24:00 bigbrock kernel: [] ? unix_stream_read_generic+0x279/0x880 Mar 10 13:24:00 bigbrock kernel: [] radeon_vm_clear_freed+0x4d/0xd0 [radeon] Mar 10 13:24:00 bigbrock kernel: [] radeon_gem_va_ioctl+0x504/0x600 [radeon] Mar 10 13:24:00 bigbrock kernel: [] drm_ioctl+0x152/0x540 [drm] Mar 10 13:24:00 bigbrock kernel: [] ? radeon_gem_get_tiling_ioctl+0x1d0/0x1d0 [radeon] Mar 10 13:24:00 bigbrock kernel: [] ? unmap_region+0xe2/0x120 Mar 10 13:24:00 bigbrock kernel: [] radeon_drm_ioctl+0x4c/0x80 [radeon] Mar 10 13:24:00 bigbrock kernel: [] do_vfs_ioctl+0x298/0x480 Mar 10 13:24:00 bigbrock kernel: [] ? do_munmap+0x335/0x400 Mar 10 13:24:00 bigbrock kernel: [] ? __fget+0x77/0xb0 Mar 10 13:24:00 bigbrock kernel: [] SyS_ioctl+0x79/0x90 Mar 10 13:24:00 bigbrock kernel: [] entry_SYSCALL_64_fastpath+0x12/0x6d Mar 10 13:24:00 bigbrock kernel: Code: ff 48 8b 85 68 ff ff ff 48 8b 95 60 ff ff ff 48 89 42 08 48 89 10 65 48 8b 04 25 40 bd 00 00 48 c7 00 00 00 00 00 e9 5f fe ff ff <0f> 0b 0f 0b 45 31 ff eb cd b8 f Mar 10 13:24:00 bigbrock kernel: RIP [] radeon_sa_bo_new+0x486/0x4a0 [radeon] -- Reboot --