http://bugzilla.suse.com/show_bug.cgi?id=957848 Bug ID: 957848 Summary: i915: WARN in drm_atomic_check_only Classification: openSUSE Product: openSUSE Tumbleweed Version: 2015* Hardware: x86-64 OS: Linux Status: NEW Severity: Normal Priority: P5 - None Component: X.Org Assignee: xorg-maintainer-bugs@forge.provo.novell.com Reporter: ohering@suse.com QA Contact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- Created attachment 658307 --> http://bugzilla.suse.com/attachment.cgi?id=658307&action=edit dmesg-4.3.0-2.txt current TW 20151202 on Esprimo Mobile M9400. There are several WARN_ON()s in dmesg, they dont seem to cause any trouble. I just noticed them now, perhaps new in kernel 4.3. [ 49.901559] WARNING: CPU: 0 PID: 1174 at ../drivers/gpu/drm/drm_atomic.c:491 drm_atomic_check_only+0x46e/0x540 [drm]() [ 49.901562] Modules linked in: fuse af_packet xfs libcrc32c snd_hda_codec_realtek snd_hda_codec_generic btrfs snd_hda_intel xor snd_hda_codec snd_hda_core snd_hwdep raid6_pq arc4 snd_pcm snd_timer dm_mod snd ath5k ath mac80211 acpi_cpufreq ppdev iTCO_wdt iTCO_vendor_support cfg80211 rfkill soundcore lpc_ich mfd_core acpi_als kfifo_buf i2c_i801 joydev industrialio parport_pc shpchp parport processor 8250_fintek coretemp pcspkr thermal battery fan ac sr_mod cdrom ata_generic uas usb_storage ata_piix serio_raw i915 i2c_algo_bit drm_kms_helper sky2 syscopyarea sysfillrect sysimgblt fb_sys_fops ehci_pci drm uhci_hcd ehci_hcd usbcore usb_common fjes video button sg [ 49.901634] CPU: 0 PID: 1174 Comm: X Tainted: G W 4.3.0-2-default #1 [ 49.901637] Hardware name: FUJITSU SIEMENS ESPRIMO Mobile M9400/M11D, BIOS 1.06 - R059 - 1566 04/22/2008 [ 49.901639] ffffffffa00f32b8 ffff8800b945b9b8 ffffffff81363719 0000000000000000 [ 49.901643] ffff8800b945b9f0 ffffffff81068cf2 ffff8800b86cc000 ffff8800b901b000 [ 49.901647] 0000000000000001 0000000000000000 ffff8800b92d4c00 ffff8800b945ba00 [ 49.901651] Call Trace: [ 49.901666] [<ffffffff81008385>] try_stack_unwind+0x175/0x190 [ 49.901674] [<ffffffff81007203>] dump_trace+0x93/0x3a0 [ 49.901678] [<ffffffff810083eb>] show_trace_log_lvl+0x4b/0x60 [ 49.901682] [<ffffffff8100761c>] show_stack_log_lvl+0x10c/0x180 [ 49.901686] [<ffffffff81008485>] show_stack+0x25/0x50 [ 49.901692] [<ffffffff81363719>] dump_stack+0x4b/0x72 [ 49.901699] [<ffffffff81068cf2>] warn_slowpath_common+0x82/0xc0 [ 49.901704] [<ffffffff81068dea>] warn_slowpath_null+0x1a/0x20 [ 49.901722] [<ffffffffa00dc37e>] drm_atomic_check_only+0x46e/0x540 [drm] [ 49.901757] [<ffffffffa00dc467>] drm_atomic_commit+0x17/0x60 [drm] [ 49.901807] [<ffffffffa022ad25>] intel_get_load_detect_pipe+0x3d5/0x530 [i915] [ 49.901840] [<ffffffffa026102d>] intel_tv_detect+0x13d/0x5d0 [i915] [ 49.901853] [<ffffffffa0167c35>] drm_helper_probe_single_connector_modes_merge_bits+0x235/0x4d0 [drm_kms_helper] [ 49.901863] [<ffffffffa0167ee3>] drm_helper_probe_single_connector_modes+0x13/0x20 [drm_kms_helper] [ 49.901880] [<ffffffffa00cf83f>] drm_mode_getconnector+0x31f/0x370 [drm] [ 49.901894] [<ffffffffa00c1458>] drm_ioctl+0x138/0x500 [drm] [ 49.901900] [<ffffffff811f5645>] do_vfs_ioctl+0x285/0x460 [ 49.901909] [<ffffffff811f5899>] SyS_ioctl+0x79/0x90 [ 49.901916] [<ffffffff8166e4b6>] entry_SYSCALL_64_fastpath+0x16/0x75 [ 49.904478] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x16/0x75 -- You are receiving this mail because: You are on the CC list for the bug.