[Bug 56651] New: intel_pm.c:4302 gen6_gt_check_fifodbg

Mon Apr 15 11:40:47 PDT 2013

https://bugzilla.kernel.org/show_bug.cgi?id=56651

           Summary: intel_pm.c:4302 gen6_gt_check_fifodbg
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.8.7
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: intel-gfx-bugs at lists.freedesktop.org
        ReportedBy: toralf.foerster at gmx.de
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

My syslog at an almost stable 32bit Gentoo was flooded yesterday by those
messages :

2013-04-14T14:57:54.709+02:00 n22 kernel: ------------[ cut here ]------------
2013-04-14T14:57:54.709+02:00 n22 kernel: WARNING: at
drivers/gpu/drm/i915/intel_pm.c:4302 gen6_gt_check_fifodbg+0x3e/0x60 [i915]()
2013-04-14T14:57:54.709+02:00 n22 kernel: Hardware name: 4180F65
2013-04-14T14:57:54.709+02:00 n22 kernel: MMIO read or write has been dropped 3
2013-04-14T14:57:54.709+02:00 n22 kernel: Modules linked in: ecb cpufreq_stats
loop md5 nfsd auth_rpcgss ipt_MASQUERADE xt_owner xt_multiport ipt_REJECT
xt_tcpudp xt_recent xt_conntrack nf_conntrack_ftp xt_limit xt_LOG iptable_nat
nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_filter
ip_tables x_tables af_packet pppoe pppox ppp_generic slhc bridge stp llc tun
msr arc4 iwldvm coretemp kvm_intel i915 mac80211 cfbfillrect cfbimgblt kvm
i2c_algo_bit cfbcopyarea intel_agp usblp iwlwifi uvcvideo videobuf2_vmalloc
videobuf2_memops videobuf2_core videodev sdhci_pci snd_hda_codec_conexant
intel_gtt thinkpad_acpi sdhci evdev battery fbcon bitblit psmouse softcursor
mmc_core font acpi_cpufreq mperf thermal cfg80211 wmi tpm_tis video processor
snd_hda_intel snd_hda_codec snd_pcm snd_page_alloc snd_timer drm_kms_helper drm
agpgart nvram rfkill ac i2c_i801 thermal_sys 8250_pci fb fbdev snd tpm
soundcore i2c_core tpm_bios hwmon 8250_core e1000e serial_core button
aesni_intel ablk_helper cryptd lrw aes_i586 xts gf128mul cbc sha256_generic
fuse nfs lockd sunrpc dm_crypt dm_mod hid_monterey hid_microsoft hid_logitech
hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech
hid_generic usbhid hid sr_mod cdrom sg [last unloaded: microcode]
2013-04-14T14:57:54.709+02:00 n22 kernel: Pid: 3919, comm: X Tainted: G       
W    3.8.7 #17
2013-04-14T14:57:54.709+02:00 n22 kernel: Call Trace:
2013-04-14T14:57:54.709+02:00 n22 kernel: [<c1033bb2>]
warn_slowpath_common+0x72/0xa0
2013-04-14T14:57:54.709+02:00 n22 kernel: [<f8bb857e>] ?
gen6_gt_check_fifodbg+0x3e/0x60 [i915]
2013-04-14T14:57:54.709+02:00 n22 kernel: [<f8bb857e>] ?
gen6_gt_check_fifodbg+0x3e/0x60 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<c1033c83>]
warn_slowpath_fmt+0x33/0x40
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8bb857e>]
gen6_gt_check_fifodbg+0x3e/0x60 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8bb85c1>]
__gen6_gt_force_wake_put+0x21/0x30 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8bb8664>]
gen6_gt_force_wake_put+0x34/0x50 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8bbc302>]
gen6_ring_put_irq+0xa2/0xd0 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8b82b87>] __wait_seqno+0x197/0x3d0
[i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<c1054230>] ?
add_wait_queue+0x50/0x50
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8b8357f>]
i915_wait_seqno+0x6f/0x80 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8b83925>]
i915_gem_object_wait_rendering+0x55/0x90 [i915]
2013-04-14T14:57:54.710+02:00 n22 kernel: [<f8b84320>]
i915_gem_object_set_to_gtt_domain+0x40/0x170 [i915]
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c13d05d0>] ?
mutex_lock_interruptible+0x10/0x40
2013-04-14T14:57:54.711+02:00 n22 kernel: [<f8b86642>]
i915_gem_pwrite_ioctl+0x292/0x810 [i915]
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c1044952>] ?
__sigqueue_free+0x32/0x40
2013-04-14T14:57:54.711+02:00 n22 kernel: [<f86ffeb0>] drm_ioctl+0x410/0x470
[drm]
2013-04-14T14:57:54.711+02:00 n22 kernel: [<f8b863b0>] ?
i915_gem_fault+0x230/0x230 [i915]
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c1047873>] ?
set_current_blocked+0x13/0x20
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c10478cc>] ?
signal_delivered+0x4c/0x70
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c1002429>] ? do_signal+0x329/0x8b0
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c100c385>] ?
__restore_xstate_sig+0x125/0x4e0
2013-04-14T14:57:54.711+02:00 n22 kernel: [<f86ffaa0>] ?
drm_copy_field+0x80/0x80 [drm]
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c112c732>] do_vfs_ioctl+0x82/0x5a0
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c100200f>] ?
restore_sigcontext+0xdf/0x110
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c112cc8c>] sys_ioctl+0x3c/0x70
2013-04-14T14:57:54.711+02:00 n22 kernel: [<c13d2c41>]
sysenter_do_call+0x12/0x22
2013-04-14T14:57:54.711+02:00 n22 kernel: ---[ end trace f8d339165ba2df5a ]---
2013-04-14T14:57:54.711+02:00 n22 kernel: [drm:__gen6_gt_force_wake_get]
*ERROR* Timed out waiting for forcewake to ack request.
2013-04-14T14:57:54.711+02:00 n22 kernel: [drm:__gen6_gt_wait_for_thread_c0]
*ERROR* GT thread status wait timed out
2013-04-14T14:57:54.711+02:00 n22 kernel: ------------[ cut here ]------------

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