Hello all,

got two kernel crahes in the last few days (both are the same) in 
'drm_object_property_get_value' with 'amd-staging-drm-next' git commit 
#94097b0f7f1b.

Greetings,
Dieter


[   36.926007] ------------[ cut here ]------------
[   36.926031] WARNING: CPU: 1 PID: 2946 at 
drivers/gpu/drm/drm_mode_object.c:294 
drm_object_property_get_value+0x22/0x30 [drm]
[   36.926032] Modules linked in: nf_log_ipv6 xt_comment nf_log_ipv4 
nf_log_common xt_LOG xt_limit rpcsec_gss_krb5 auth_rpcgss nfsv4 
dns_resolver nfs lockd nfnetlink_cthelper grace nfnetlink sunrpc fscache 
af_packet ipmi_ssif iscsi_ibft iscsi_boot_sysfs ip6t_REJECT 
nf_reject_ipv6 nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT 
nf_reject_ipv4 xt_pkttype xt_tcpudp iptable_filter ip6table_mangle 
nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 
nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack bnep libcrc32c 
ip6table_filter ip6_tables x_tables jc42 joydev btusb snd_hda_codec_hdmi 
btrtl btbcm btintel snd_hda_intel bluetooth iTCO_wdt intel_powerclamp 
snd_hda_codec iTCO_vendor_support hid_generic coretemp snd_hwdep 
kvm_intel snd_hda_core kvm snd_pcm rfkill ecdh_generic snd_timer 
irqbypass crc32c_intel
[   36.926053]  snd e1000e pcspkr tpm_infineon ptp i2c_i801 soundcore 
tpm_tis i7core_edac pps_core tpm_tis_core lpc_ich tpm ipmi_si shpchp 
usbhid ipmi_devintf ipmi_msghandler button ac acpi_cpufreq tcp_bbr raid1 
md_mod amdkfd amd_iommu_v2 amdgpu serio_raw i2c_algo_bit sr_mod cdrom 
drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ehci_pci 
ttm ehci_hcd mpt3sas raid_class scsi_transport_sas usbcore drm sg 
dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua
[   36.926071] CPU: 1 PID: 2946 Comm: X Tainted: G        W       
4.13.0-rc5-1.g7262353-default+ #1
[   36.926071] Hardware name: FUJITSU                          PRIMERGY 
TX150 S7             /D2759, BIOS 6.00 Rev. 1.19.2759.A1           
09/26/2012
[   36.926072] task: ffff9ab621630080 task.stack: ffffaab9460e0000
[   36.926079] RIP: 0010:drm_object_property_get_value+0x22/0x30 [drm]
[   36.926080] RSP: 0018:ffffaab9460e3bf8 EFLAGS: 00010282
[   36.926081] RAX: ffffffffc0754c40 RBX: ffff9ab621890000 RCX: 
0000000000000000
[   36.926081] RDX: ffffaab9460e3c10 RSI: ffff9ab621b1b980 RDI: 
ffff9ab61e03d028
[   36.926082] RBP: ffffaab9460e3bf8 R08: ffff9ab620cbff40 R09: 
ffff9ab61de2c800
[   36.926082] R10: 0000000000024bb8 R11: 0000000000000000 R12: 
0000000000000000
[   36.926083] R13: ffff9ab61e03d000 R14: 00000000ffffffea R15: 
ffff9ab61dd0dd80
[   36.926084] FS:  00007f9df38b3a00(0000) GS:ffff9ab63fc40000(0000) 
knlGS:0000000000000000
[   36.926085] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.926085] CR2: 00007f9dd8013c58 CR3: 0000000657147000 CR4: 
00000000000006e0
[   36.926086] Call Trace:
[   36.926165]  amdgpu_dm_connector_atomic_set_property+0xe8/0x150 
[amdgpu]
[   36.926174]  drm_atomic_set_property+0x164/0x470 [drm]
[   36.926180]  drm_mode_obj_set_property_ioctl+0x10b/0x240 [drm]
[   36.926188]  ? drm_mode_connector_set_obj_prop+0x80/0x80 [drm]
[   36.926194]  drm_mode_connector_property_set_ioctl+0x30/0x40 [drm]
[   36.926200]  drm_ioctl_kernel+0x5d/0xb0 [drm]
[   36.926206]  drm_ioctl+0x31a/0x3d0 [drm]
[   36.926213]  ? drm_mode_connector_set_obj_prop+0x80/0x80 [drm]
[   36.926216]  ? ext4_file_write_iter+0xba/0x390
[   36.926234]  amdgpu_drm_ioctl+0x4f/0x90 [amdgpu]
[   36.926237]  do_vfs_ioctl+0x92/0x5c0
[   36.926239]  ? __fget+0x6e/0x90
[   36.926240]  SyS_ioctl+0x79/0x90
[   36.926243]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[   36.926244] RIP: 0033:0x7f9df1276587
[   36.926244] RSP: 002b:00007ffd87641438 EFLAGS: 00000246 ORIG_RAX: 
0000000000000010
[   36.926245] RAX: ffffffffffffffda RBX: 00000009bb3247a0 RCX: 
00007f9df1276587
[   36.926246] RDX: 00007ffd87641470 RSI: 00000000c01064ab RDI: 
000000000000000d
[   36.926246] RBP: 00000009bb7f1700 R08: 00000009bb801b90 R09: 
0000000000000001
[   36.926247] R10: 0000000000000004 R11: 0000000000000246 R12: 
00000009bb3247a0
[   36.926247] R13: 0000000000000005 R14: 00000009bb1efe20 R15: 
00000009bb1efe20
[   36.926248] Code: 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 46 
60 55 48 89 e5 48 8b 80 70 03 00 00 48 83 78 20 00 75 07 e8 60 ff ff ff 
5d c3 <0f> ff e8 57 ff ff ff 5d c3 0f 1f 44 00 00 66 66 66 66 90 55 48
[   36.926264] ---[ end trace abd285f13bc5ee7f ]---