[Bug 95621] New: BUG in drm_framebuffer_free_bug at drivers/gpu/drm/drm_crtc.c:530

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=95621

            Bug ID: 95621
           Summary: BUG in  drm_framebuffer_free_bug at
                    drivers/gpu/drm/drm_crtc.c:530
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.0-rc4
          Hardware: x86-64
                OS: Linux
              Tree: Fedora
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: zlynx at acm.org
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

I believe I was trying to switch from the GDM login console to a text console.

Shortly after I tried to switch the machine froze up and I had to force
power-off with the power button.

This was in the log when I came back.

------------[ cut here ]------------
kernel BUG at drivers/gpu/drm/drm_crtc.c:530!
invalid opcode: 0000 [#1] SMP 
Modules linked in: vhost_net vhost macvtap macvlan rfcomm fuse ccm xt_CHECKSUM
ipt_MASQUERADE nf_nat_masquerade_ipv4 tun nf_conntrack_netbios_ns
nf_conntrack_broadcast ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack
ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat
nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security
ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4
nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security
iptable_raw bnep arc4 pn544_mei mei_phy pn544 hci intel_rapl iosf_mbi nfc
x86_pkg_temp_thermal coretemp dell_wmi dell_laptop iTCO_wdt sparse_keymap
kvm_intel iTCO_vendor_support iwlmvm dcdbas kvm snd_hda_codec_realtek mac80211
snd_hda_codec_hdmi vfat snd_hda_codec_generic
 fat i8k snd_hda_intel snd_hda_controller snd_hda_codec crct10dif_pclmul
snd_hwdep crc32_pclmul uvcvideo snd_seq iwlwifi videobuf2_vmalloc btusb
ghash_clmulni_intel videobuf2_core snd_seq_device bluetooth videobuf2_memops
cfg80211 snd_pcm i2c_i801 v4l2_common hid_multitouch videodev serio_raw media
rtsx_pci_ms snd_timer rfkill tpm_tis memstick snd ie31200_edac mei_me soundcore
lpc_ich mei edac_core shpchp tpm int3403_thermal dell_smo8800 int3402_thermal
processor_thermal_device int3400_thermal int340x_thermal_zone acpi_thermal_rel
nfsd auth_rpcgss nfs_acl lockd grace sunrpc btrfs xor nouveau i915 raid6_pq
rtsx_pci_sdmmc mmc_core ttm i2c_algo_bit drm_kms_helper mxm_wmi drm
crc32c_intel rtsx_pci mfd_core video wmi
CPU: 0 PID: 857 Comm: systemd-logind Not tainted 4.0.0-0.rc4.git0.1.fc22.x86_64
#1
Hardware name: Dell Inc. Dell Precision M3800/Dell Precision M3800, BIOS A08
11/14/2014
task: ffff880468736ca0 ti: ffff88045bae4000 task.ti: ffff88045bae4000
RIP: 0010:[<ffffffffa0069659>]  [<ffffffffa0069659>]
drm_framebuffer_free_bug+0x9/0x10 [drm]
RSP: 0018:ffff88045bae7988  EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff880469217400 RCX: 0000000000000000
RDX: 0000000180150010 RSI: ffffea00074349c0 RDI: ffff880079068cc8
RBP: ffff88045bae7988 R08: 00000000d0d27f01 R09: 000000018015000f
R10: ffff8801d0d27f00 R11: 0000000000000007 R12: ffff880079068cc0
R13: ffff88046921bf00 R14: ffff8804692a0360 R15: 0000000000000080
FS:  00007fe8a33ed8c0(0000) GS:ffff88047fa00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f99b61f1018 CR3: 000000045c4a3000 CR4: 00000000001407f0
Stack:
 ffff88045bae79a8 ffffffffa006b7dd ffff880469217400 ffff8804692a0000
 ffff88045bae79e8 ffffffffa00d06a1 00000000ffffffff ffff88046921bf00
 ffff8804692a0000 0000000000000000 0000000000200001 0000000000000080
Call Trace:
 [<ffffffffa006b7dd>] drm_plane_force_disable+0x9d/0xd0 [drm]
 [<ffffffffa00d06a1>] restore_fbdev_mode+0x51/0xf0 [drm_kms_helper]
 [<ffffffffa00d2769>] drm_fb_helper_restore_fbdev_mode_unlocked+0x29/0x80
[drm_kms_helper]
 [<ffffffffa00d27e2>] drm_fb_helper_set_par+0x22/0x50 [drm_kms_helper]
 [<ffffffffa01c5c1a>] intel_fbdev_set_par+0x1a/0x60 [i915]
 [<ffffffff81418346>] ? fb_set_var+0x2f6/0x480
 [<ffffffff81418286>] fb_set_var+0x236/0x480
 [<ffffffff810d5079>] ? check_preempt_wakeup+0x1a9/0x230
 [<ffffffff810d3e1c>] ? update_curr+0x5c/0x160
 [<ffffffff8140dd8c>] fbcon_blank+0x34c/0x390
 [<ffffffff8101365b>] ? __switch_to+0x19b/0x5f0
 [<ffffffff81494cca>] do_unblank_screen+0xda/0x1d0
 [<ffffffff8148931d>] complete_change_console+0x5d/0xf0
 [<ffffffff8148a7bb>] vt_ioctl+0x140b/0x1430
 [<ffffffff8147c601>] tty_ioctl+0x3f1/0xc30
 [<ffffffff8147d470>] ? tty_release+0x320/0x5a0
 [<ffffffff81232ba6>] do_vfs_ioctl+0x2c6/0x4d0
 [<ffffffff81232e31>] SyS_ioctl+0x81/0xa0
 [<ffffffff81787849>] system_call_fastpath+0x12/0x17
Code: c0 71 e1 4c 89 e7 e8 a7 5e 19 e1 48 83 c4 08 5b 41 5c 41 5d 5d c3 66 66
66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 <0f> 0b 0f 1f 44 00 00
0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 
RIP  [<ffffffffa0069659>] drm_framebuffer_free_bug+0x9/0x10 [drm]
 RSP <ffff88045bae7988>
---[ end trace be68833852e5bc6b ]---

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