BUG: kernel NULL pointer dereference, address: 0000000000000000

I was running the 5.5.10-arch1-1 ArchLinux kernel this evening when it occured. Unfortunately, I don't know how to reproduce this. It happened when I was playing a mpv video and compiling code at the same time. Let me know if there is any information I can give.

Processor is i7-8700K CPU (00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Desktop))

Apr 07 22:53:43 odin kernel: BUG: kernel NULL pointer dereference, address: 0000000000000000
Apr 07 22:53:43 odin kernel: #PF: supervisor read access in kernel mode
Apr 07 22:53:43 odin kernel: #PF: error_code(0x0000) - not-present page
Apr 07 22:53:43 odin kernel: PGD 0 P4D 0
Apr 07 22:53:43 odin kernel: Oops: 0000 [#1] PREEMPT SMP NOPTI
Apr 07 22:53:43 odin kernel: CPU: 10 PID: 594 Comm: Xorg Not tainted 5.5.10-arch1-1 #1
Apr 07 22:53:43 odin kernel: Hardware name: Gigabyte Technology Co., Ltd. Z370 AORUS Gaming 7/Z370 AORUS Gaming 7, BIOS F5 03/01/2018
Apr 07 22:53:43 odin kernel: RIP: 0010:gen8_ppgtt_insert+0x3a8/0x6a0 [i915]
Apr 07 22:53:43 odin kernel: Code: 31 ff 81 e2 00 00 01 00 0f 84 b1 01 00 00 66 85 db 0f 85 a8 01 00 00 66 45 85 e4 74 0d 49 81 fc ff ff 1f 00 0f 86 95 01 00 00 <48> 8b 09 bf 01 00 00 00 44 89 44 24 10 48 89 4c 24 08 e8 41 9e 0c
Apr 07 22:53:43 odin kernel: RSP: 0018:ffffab6200957c00 EFLAGS: 00010206
Apr 07 22:53:43 odin kernel: RAX: 0000000000000000 RBX: 00000002f2903000 RCX: 0000000000000000
Apr 07 22:53:43 odin kernel: RDX: 0000000000010000 RSI: ffffa37eb46b0000 RDI: ffffa37ae5c72000
Apr 07 22:53:43 odin kernel: RBP: ffffa37af7de0ca0 R08: 00000000ffffffff R09: 000000000000001b
Apr 07 22:53:43 odin kernel: R10: ffffa37af7de0ca0 R11: 0000000000000fff R12: 0000000000001000
Apr 07 22:53:43 odin kernel: R13: 000000002f800000 R14: 00000002f2904000 R15: 0000000000000000
Apr 07 22:53:43 odin kernel: FS:  00007f5926dc3dc0(0000) GS:ffffa3825f480000(0000) knlGS:0000000000000000
Apr 07 22:53:43 odin kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 07 22:53:43 odin kernel: CR2: 0000000000000000 CR3: 0000000879704001 CR4: 00000000003606e0
Apr 07 22:53:43 odin kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 07 22:53:43 odin kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Apr 07 22:53:43 odin kernel: Call Trace:
Apr 07 22:53:43 odin kernel:  ppgtt_bind_vma+0x67/0x70 [i915]
Apr 07 22:53:43 odin kernel:  i915_vma_bind+0x94/0x160 [i915]
Apr 07 22:53:43 odin kernel:  i915_gem_object_set_cache_level.part.0+0x1a1/0x2b0 [i915]
Apr 07 22:53:43 odin kernel:  i915_gem_set_caching_ioctl+0x188/0x1c0 [i915]
Apr 07 22:53:43 odin kernel:  ? i915_gem_get_caching_ioctl+0x90/0x90 [i915]
Apr 07 22:53:43 odin kernel:  drm_ioctl_kernel+0xb2/0x100 [drm]
Apr 07 22:53:43 odin kernel:  drm_ioctl+0x209/0x360 [drm]
Apr 07 22:53:43 odin kernel:  ? i915_gem_get_caching_ioctl+0x90/0x90 [i915]
Apr 07 22:53:43 odin kernel:  do_vfs_ioctl+0x4b7/0x730
Apr 07 22:53:43 odin kernel:  ksys_ioctl+0x5e/0x90
Apr 07 22:53:43 odin kernel:  __x64_sys_ioctl+0x16/0x20
Apr 07 22:53:43 odin kernel:  do_syscall_64+0x4e/0x150
Apr 07 22:53:43 odin kernel:  entry_SYSCALL_64_after_hwframe+0x44/0xa9
Apr 07 22:53:43 odin kernel: RIP: 0033:0x7f5927c0d3cb
Apr 07 22:53:43 odin kernel: Code: 0f 1e fa 48 8b 05 c5 6a 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 95 6a 0c 00 f7 d8 64 89 01 48
Apr 07 22:53:43 odin kernel: RSP: 002b:00007ffda016c4f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Apr 07 22:53:43 odin kernel: RAX: ffffffffffffffda RBX: 00007f5923f9c430 RCX: 00007f5927c0d3cb
Apr 07 22:53:43 odin kernel: RDX: 00007ffda016c520 RSI: 000000004008646f RDI: 000000000000000d
Apr 07 22:53:43 odin kernel: RBP: 000000000000000d R08: 0000000000000001 R09: 0000000000007800
Apr 07 22:53:43 odin kernel: R10: 0000000000000200 R11: 0000000000000246 R12: 00007ffda016c520
Apr 07 22:53:43 odin kernel: R13: 000055f51d62eb28 R14: 000055f51d62eb10 R15: 00007f5923f9c000
Apr 07 22:53:43 odin kernel: Modules linked in: veth loop vhost_net vhost tap tun xt_MASQUERADE iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sr_mod cdrom mousedev input_leds uvcvideo videobuf2_vmalloc videobuf2_memops hid_generic videobuf2_v4l2 snd_usb_a>
Apr 07 22:53:43 odin kernel:  pcspkr soundcore alx parport_pc mei_me intel_gtt i2c_i801 syscopyarea parport mei sysfillrect mdio sysimgblt fb_sys_fops wmi ie31200_edac evdev mac_hid nfsd auth_rpcgss nfs_acl lockd coretemp grace msr sunrpc sg drm scsi_mod crypto_user agpgart ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 raid0 md_mod x>
Apr 07 22:53:43 odin kernel: CR2: 0000000000000000
Apr 07 22:53:43 odin kernel: ---[ end trace 4726a5d15b8d13ac ]---
Apr 07 22:53:43 odin kernel: RIP: 0010:gen8_ppgtt_insert+0x3a8/0x6a0 [i915]
Apr 07 22:53:43 odin kernel: Code: 31 ff 81 e2 00 00 01 00 0f 84 b1 01 00 00 66 85 db 0f 85 a8 01 00 00 66 45 85 e4 74 0d 49 81 fc ff ff 1f 00 0f 86 95 01 00 00 <48> 8b 09 bf 01 00 00 00 44 89 44 24 10 48 89 4c 24 08 e8 41 9e 0c
Apr 07 22:53:43 odin kernel: RSP: 0018:ffffab6200957c00 EFLAGS: 00010206
Apr 07 22:53:43 odin kernel: RAX: 0000000000000000 RBX: 00000002f2903000 RCX: 0000000000000000
Apr 07 22:53:43 odin kernel: RDX: 0000000000010000 RSI: ffffa37eb46b0000 RDI: ffffa37ae5c72000
Apr 07 22:53:43 odin kernel: RBP: ffffa37af7de0ca0 R08: 00000000ffffffff R09: 000000000000001b
Apr 07 22:53:43 odin kernel: R10: ffffa37af7de0ca0 R11: 0000000000000fff R12: 0000000000001000
Apr 07 22:53:43 odin kernel: R13: 000000002f800000 R14: 00000002f2904000 R15: 0000000000000000
Apr 07 22:53:43 odin kernel: FS:  00007f5926dc3dc0(0000) GS:ffffa3825f480000(0000) knlGS:0000000000000000
Apr 07 22:53:43 odin kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 07 22:53:43 odin kernel: CR2: 0000000000000000 CR3: 0000000879704001 CR4: 00000000003606e0
Apr 07 22:53:43 odin kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Apr 07 22:53:43 odin kernel: DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

changed the description

added kernel:5.5 platform: CFL labels

added Community label

Could you please try with latest drm-tip sources, provide complete dmesg log "log_level=debug drm.debug=0x1e".

added priority::low severity::normal labels

added severity::critical label and removed priority::low severity::normal labels

marked this issue as a duplicate of #1201 (closed)

closed