Red Hat Bugzilla – Bug 854070
[abrt]: WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8a/0x90 [i915]()
Last modified: 2013-02-13 03:26:04 EST
libreport version: 2.0.10
cmdline: BOOT_IMAGE=/boot/vmlinuz-3.4.9-2.fc16.i686.PAE root=UUID=7cd5e545-d442-4d1f-b629-581058b288cc ro rd.md=0 rd.lvm=0 rd.dm=0 KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
:WARNING: at drivers/gpu/drm/i915/intel_display.c:948 assert_pipe+0x8a/0x90 [i915]()
:Hardware name: HP Mini
:pipe A assertion failure (expected on, current off)
:Modules linked in: fuse lockd tpm_bios nf_conntrack_ipv4 nf_defrag_ipv4 ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables arc4 coretemp b43 mac80211 cfg80211 bcma snd_hda_codec_idt hp_wmi sparse_keymap rfkill uvcvideo videobuf2_core videodev media videobuf2_vmalloc videobuf2_memops microcode joydev snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device serio_raw iTCO_wdt iTCO_vendor_support i2c_i801 snd_pcm ssb sky2 mmc_core snd_timer snd soundcore snd_page_alloc wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video sunrpc uinput usb_storage [last unloaded: scsi_wait_scan]
:Pid: 4311, comm: Xorg Tainted: G W 3.4.9-2.fc16.i686.PAE #1
: [<c0446fd2>] warn_slowpath_common+0x72/0xa0
: [<f809a26a>] ? assert_pipe+0x8a/0x90 [i915]
: [<f809a26a>] ? assert_pipe+0x8a/0x90 [i915]
: [<c04470a3>] warn_slowpath_fmt+0x33/0x40
: [<f809a26a>] assert_pipe+0x8a/0x90 [i915]
: [<f809b7c3>] intel_crtc_disable+0x73/0xb0 [i915]
: [<f80a3638>] ? intel_crt_dpms+0x78/0xb0 [i915]
: [<f7f031df>] drm_helper_disable_unused_functions+0xef/0x150 [drm_kms_helper]
: [<f7f04ab4>] drm_crtc_helper_set_config+0x974/0xa20 [drm_kms_helper]
: [<c0670760>] ? copy_to_user+0x40/0x60
: [<f7fc4de0>] ? drm_ioctl+0x3e0/0x460 [drm]
: [<f7fc4e60>] ? drm_ioctl+0x460/0x460 [drm]
: [<f7f01e1d>] drm_fb_helper_restore_fbdev_mode+0x2d/0x50 [drm_kms_helper]
: [<f80b02fe>] intel_fb_restore_mode+0x2e/0xa0 [i915]
: [<f7fce065>] ? drm_ht_remove+0x35/0x40 [drm]
: [<f807ca4b>] i915_driver_lastclose+0x2b/0x50 [i915]
: [<f7fc4f45>] drm_lastclose+0x45/0x2a0 [drm]
: [<f7fc57a8>] drm_release+0x468/0x610 [drm]
: [<c054a988>] fput+0xb8/0x220
: [<c0547234>] filp_close+0x54/0x80
: [<c05472bb>] sys_close+0x5b/0xa0
: [<c095c5df>] sysenter_do_call+0x12/0x28
*** Bug 854221 has been marked as a duplicate of this bug. ***
This bug has happened many times since my initial report. It seems to occur when the X server starts or exits (i.e., session logon or logoff) or after suspend/resume.
Clarification: the warning occurs every time I log off XFCE4 or Gnome. It also occurs every time the laptop resumes from an ACPI suspend by opening the lid.
This problem has continued to occur every time I log off or resume from suspend. It appears that three kernel warnings occur in quick succession at these times. It causes a noticable delay (with the screen going black) while the warnings are processed.
Unfortunately, I've gotten tired of these warnings so I've replaced FC16 with another Linux distro (CentOS 6.3) that has an older kernel and older i915 module that doesn't suffer from this bug. Therefore I won't be able to help test fixes, etc., for this bug. Go ahead and close it if you'd like.
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