i915 вываливает ядро в kernel panic после suspend/hibernate, kernel 3.x.y-zen

Время от времени на ядрах 3.x.y-zen (x где-то с 1 или 2) после выхода из гибернации модуль i915 где-то косячит...
Явление это не такое уж и частое: в день в suspend раза по 3-4 отправляю, иногда больше, kernel panic славливаю 1-2 раза в месяц, гибернацию почти не использую, но, кажется, один раз и после нее было дело.

Собственно, лог:

Jul 26 13:34:16 spb-dzheika -- MARK --
Jul 26 13:34:16 spb-dzheika kernel: [212634.359006] Freezing user space processes ... (elapsed 0.01 seconds) done.
Jul 26 13:34:16 spb-dzheika kernel: [212634.369980] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
Jul 26 13:34:16 spb-dzheika kernel: [212634.381086] Suspending console(s) (use no_console_suspend to debug)
Jul 26 13:34:16 spb-dzheika kernel: [212634.381297] sd 0:0:0:0: [sda] Synchronizing SCSI cache
Jul 26 13:34:16 spb-dzheika kernel: [212634.413936] sd 0:0:0:0: [sda] Stopping disk
Jul 26 13:34:16 spb-dzheika kernel: [212635.105635] PM: suspend of devices complete after 724.845 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212635.105704] PM: late suspend of devices complete after 0.058 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212635.116917] tg3 0000:02:00.0: wake-up capability enabled by ACPI
Jul 26 13:34:16 spb-dzheika kernel: [212635.127791] ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI
Jul 26 13:34:16 spb-dzheika kernel: [212635.149643] PM: noirq suspend of devices complete after 43.957 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212635.149829] ACPI: Preparing to enter system sleep state S3
Jul 26 13:34:16 spb-dzheika kernel: [212635.150485] PM: Saving platform NVS memory
Jul 26 13:34:16 spb-dzheika kernel: [212635.153168] Disabling non-boot CPUs ...
Jul 26 13:34:16 spb-dzheika kernel: [212635.154731] CPU 1 is now offline
Jul 26 13:34:16 spb-dzheika kernel: [212635.156306] CPU 2 is now offline
Jul 26 13:34:16 spb-dzheika kernel: [212635.159071] CPU 3 is now offline
Jul 26 13:34:16 spb-dzheika kernel: [212635.159365] Extended CMOS year: 2000
Jul 26 13:34:16 spb-dzheika kernel: [212635.160252] ACPI: Low-level resume complete
Jul 26 13:34:16 spb-dzheika kernel: [212635.160303] PM: Restoring platform NVS memory
Jul 26 13:34:16 spb-dzheika kernel: [212635.160785] Extended CMOS year: 2000
Jul 26 13:34:16 spb-dzheika dhcpcd[23290]: eth0: carrier acquired
Jul 26 13:34:16 spb-dzheika kernel: [212635.160806] Enabling non-boot CPUs ...
Jul 26 13:34:16 spb-dzheika kernel: [212635.163003] Booting Node 0 Processor 1 APIC 0x1
Jul 26 13:34:16 spb-dzheika kernel: [212635.176455] CPU1 is up
Jul 26 13:34:16 spb-dzheika kernel: [212635.176527] Booting Node 0 Processor 2 APIC 0x2
Jul 26 13:34:16 spb-dzheika kernel: [212635.189972] CPU2 is up
Jul 26 13:34:16 spb-dzheika kernel: [212635.190037] Booting Node 0 Processor 3 APIC 0x3
Jul 26 13:34:16 spb-dzheika kernel: [212635.203542] CPU3 is up
Jul 26 13:34:16 spb-dzheika kernel: [212635.206604] ACPI: Waking up from system sleep state S3
Jul 26 13:34:16 spb-dzheika kernel: [212635.220130] ehci_hcd 0000:00:1d.0: wake-up capability disabled by ACPI
Jul 26 13:34:16 spb-dzheika kernel: [212635.220961] PM: noirq resume of devices complete after 1.278 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212635.221085] PM: early resume of devices complete after 0.038 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212635.221136] i915 0000:00:02.0: setting latency timer to 64
Jul 26 13:34:16 spb-dzheika kernel: [212635.221146] ehci_hcd 0000:00:1a.0: setting latency timer to 64
Jul 26 13:34:16 spb-dzheika kernel: [212635.221181] ehci_hcd 0000:00:1d.0: setting latency timer to 64
Jul 26 13:34:16 spb-dzheika kernel: [212635.221200] ahci 0000:00:1f.2: setting latency timer to 64
Jul 26 13:34:16 spb-dzheika kernel: [212635.221213] snd_hda_intel 0000:00:1b.0: irq 43 for MSI/MSI-X
Jul 26 13:34:16 spb-dzheika kernel: [212635.221218] tg3 0000:02:00.0: wake-up capability disabled by ACPI
Jul 26 13:34:16 spb-dzheika kernel: [212635.306852] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Jul 26 13:34:16 spb-dzheika kernel: [212635.344021] [drm:init_ring_common] *ERROR* blt ring initialization failed ctl 00000000 head 00000000 tail 00000000 start 00044000
Jul 26 13:34:16 spb-dzheika kernel: [212635.452925] usb 1-1.3: reset high-speed USB device number 3 using ehci_hcd
Jul 26 13:34:16 spb-dzheika kernel: [212635.525769] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Jul 26 13:34:16 spb-dzheika kernel: [212635.532999] ata2.00: configured for UDMA/100
Jul 26 13:34:16 spb-dzheika kernel: [212635.626385] dpm_run_callback(): pci_pm_resume+0x0/0xc0 returns -5
Jul 26 13:34:16 spb-dzheika kernel: [212635.626388] PM: Device 0000:00:02.0 failed to resume async: error -5
Jul 26 13:34:16 spb-dzheika kernel: [212635.791898] usb 2-1.1: reset low-speed USB device number 6 using ehci_hcd
Jul 26 13:34:16 spb-dzheika kernel: [212636.904077] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
Jul 26 13:34:16 spb-dzheika kernel: [212636.906037] ata1.00: configured for UDMA/100
Jul 26 13:34:16 spb-dzheika kernel: [212636.911921] tg3 0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex
Jul 26 13:34:16 spb-dzheika kernel: [212636.911923] tg3 0000:02:00.0: eth0: Flow control is on for TX and on for RX
Jul 26 13:34:16 spb-dzheika kernel: [212636.911925] tg3 0000:02:00.0: eth0: EEE is disabled
Jul 26 13:34:16 spb-dzheika kernel: [212636.917165] sd 0:0:0:0: [sda] Starting disk
Jul 26 13:34:16 spb-dzheika kernel: [212636.953231] PM: resume of devices complete after 1733.044 msecs
Jul 26 13:34:16 spb-dzheika kernel: [212636.953297] Restarting tasks ... 
Jul 26 13:34:16 spb-dzheika kernel: [212636.954827] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
Jul 26 13:34:16 spb-dzheika kernel: [212636.955627] IP: [<ffffffffa01ebedc>] gen6_render_ring_flush+0x1c/0x260 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.956329] PGD 253642067 PUD 253413067 PMD 0 
Jul 26 13:34:16 spb-dzheika kernel: [212636.956809] Oops: 0000 [#1] PREEMPT SMP 
Jul 26 13:34:16 spb-dzheika kernel: [212636.957240] CPU 1 
Jul 26 13:34:16 spb-dzheika kernel: [212636.957436] Modules linked in: cdc_acm ipv6 aes_generic snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops arc4 i915 snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc ath9k mac80211 ath9k_common ath9k_hw sdhci_pci sdhci mmc_core drm_kms_helper ath microcode cfg80211 rfkill video backlight joydev
Jul 26 13:34:16 spb-dzheika kernel: [212636.957769] 
Jul 26 13:34:16 spb-dzheika kernel: [212636.957772] Pid: 2124, comm: X Not tainted 3.4.6-zen #1 Acer Aspire 5750G/JE50_HR
Jul 26 13:34:16 spb-dzheika kernel: [212636.957775] RIP: 0010:[<ffffffffa01ebedc>]  [<ffffffffa01ebedc>] gen6_render_ring_flush+0
x1c/0x260 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957787] RSP: 0018:ffff880253721b78  EFLAGS: 00010296
Jul 26 13:34:16 spb-dzheika kernel: [212636.957789] RAX: 0000000000000000 RBX: ffff880250738060 RCX: 0000000000000000
Jul 26 13:34:16 spb-dzheika kernel: [212636.957791] RDX: 0000000000000041 RSI: 0000000000000006 RDI: ffff880250738060
Jul 26 13:34:16 spb-dzheika kernel: [212636.957793] RBP: ffff880253721ba8 R08: 0000000000000003 R09: 0000000000000021
Jul 26 13:34:16 spb-dzheika kernel: [212636.957795] R10: 000000000000001c R11: 0000000000000000 R12: ffff880253721de8
Jul 26 13:34:16 spb-dzheika kernel: [212636.957797] R13: 000000000000003e R14: 0000000000000003 R15: ffff88025344c6c0
Jul 26 13:34:16 spb-dzheika kernel: [212636.957800] FS:  00007f5590706880(0000) GS:ffff88025fa80000(0000) knlGS:0000000000000000
Jul 26 13:34:16 spb-dzheika kernel: [212636.957802] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jul 26 13:34:16 spb-dzheika kernel: [212636.957804] CR2: 0000000000000010 CR3: 0000000253656000 CR4: 00000000000407e0
Jul 26 13:34:16 spb-dzheika kernel: [212636.957806] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul 26 13:34:16 spb-dzheika kernel: [212636.957808] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jul 26 13:34:16 spb-dzheika kernel: [212636.957811] Process X (pid: 2124, threadinfo ffff880253720000, task ffff880251fd49c0)
Jul 26 13:34:16 spb-dzheika kernel: [212636.957812] Stack:
Jul 26 13:34:16 spb-dzheika kernel: [212636.957814]  ffff880253721b98 ffff880253721cf8 0000000000000000 ffff880250738060
Jul 26 13:34:16 spb-dzheika kernel: [212636.957817]  ffff880253721de8 000000000000003e ffff880253721c18 ffffffffa01bd8bb
Jul 26 13:34:16 spb-dzheika kernel: [212636.957820]  ffff880253721bd8 ffff88023e2a9e00 0000000001721be8 0000000050738000
Jul 26 13:34:16 spb-dzheika kernel: [212636.957823] Call Trace:
Jul 26 13:34:16 spb-dzheika kernel: [212636.957832]  [<ffffffffa01bd8bb>] i915_gem_flush_ring+0x4b/0x240 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957839]  [<ffffffffa01c4eef>] i915_gem_do_execbuffer.clone.7+0xfbf/0x12c0 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957844]  [<ffffffff81061e11>] ? get_parent_ip+0x11/0x50
Jul 26 13:34:16 spb-dzheika kernel: [212636.957852]  [<ffffffffa01c56af>] i915_gem_execbuffer2+0x7f/0x260 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957856]  [<ffffffff812e3df0>] drm_ioctl+0x2a0/0x4f0
Jul 26 13:34:16 spb-dzheika kernel: [212636.957862]  [<ffffffffa01c5630>] ? i915_gem_execbuffer+0x440/0x440 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957867]  [<ffffffff8112e226>] do_vfs_ioctl+0x96/0x500
Jul 26 13:34:16 spb-dzheika kernel: [212636.957870]  [<ffffffff8112e721>] sys_ioctl+0x91/0xa0
Jul 26 13:34:16 spb-dzheika kernel: [212636.957875]  [<ffffffff814dede2>] system_call_fastpath+0x16/0x1b
Jul 26 13:34:16 spb-dzheika kernel: [212636.957877] Code: 5c c9 c3 0f 1f 40 00 80 fa 05 75 99 eb 93 90 55 be 06 00 00 00 48 89 e5 41 55 41 54 53 48 89 fb 48 83 ec 18 48 8b 87 60 01 00 00 <44> 8b 60 10 e8 eb f2 ff ff 41 83 ec 80 85 c0 0f 84 cf 00 00 00 
Jul 26 13:34:16 spb-dzheika kernel: [212636.957907] RIP  [<ffffffffa01ebedc>] gen6_render_ring_flush+0x1c/0x260 [i915]
Jul 26 13:34:16 spb-dzheika kernel: [212636.957914]  RSP <ffff880253721b78>
Jul 26 13:34:16 spb-dzheika kernel: [212636.957916] CR2: 0000000000000010
Jul 26 13:34:16 spb-dzheika kernel: [212636.959268] ---[ end trace 41a075b82eada2bc ]---
Jul 26 13:34:16 spb-dzheika kernel: [212636.961740] done.

Ядро: Linux spb-dzheika 3.4.6-zen #1 ZEN SMP PREEMPT Sat Jul 21 18:10:53 MSK 2012 x86_64 Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz GenuineIntel GNU/Linux

Честно говоря, из-за нечастого проявления ставить ваниль или гентушное ядро вместо zen'a, чтобы проверить где именно косяк, не хочется... может кто сталкивался? И куда лучше копать? Кому стоит баг написать?