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SubjectRe: Regression in TTM driver w/Linus' master
From
Date
Am 24.11.2017 um 17:29 schrieb Tobias Klausmann:
>
> On 11/24/17 4:35 PM, Christian König wrote:
>> Am 24.11.2017 um 16:17 schrieb Tobias Klausmann:
>>>
>>> On 11/24/17 3:54 PM, Daniel Vetter wrote:
>>>> On Thu, Nov 23, 2017 at 03:24:38PM +0100, Tobias Klausmann wrote:
>>>>> On 11/23/17 2:58 AM, Dave Airlie wrote:
>>>>>> On 23 November 2017 at 11:17, Laura Abbott <labbott@redhat.com>
>>>>>> wrote:
>>>>>>> Hi,
>>>>>>>
>>>>>>> Fedora QA testing reported a panic when booting up VMs
>>>>>>> using qmeu vga drivers
>>>>>>> (https://paste.fedoraproject.org/paste/498yRWTCJv2LKIrmj4EliQ)
>>>>>>>
>>>>>>> [   30.108507] ------------[ cut here ]------------
>>>>>>> [   30.108920] kernel BUG at ./include/linux/gfp.h:408!
>>>>>>> [   30.109356] invalid opcode: 0000 [#1] SMP
>>>>>>> [   30.109700] Modules linked in: fuse nf_conntrack_netbios_ns
>>>>>>> nf_conntrack_broadcast xt_CT ip6t_rpfilter ip6t_REJECT
>>>>>>> nf_reject_ipv6
>>>>>>> xt_conntrack devlink ip_set nfnetlink ebtable_nat ebtable_broute
>>>>>>> bridge
>>>>>>> ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6
>>>>>>> ip6table_mangle
>>>>>>> ip6table_raw ip6table_security iptable_nat nf_conntrack_ipv4
>>>>>>> nf_defrag_ipv4
>>>>>>> nf_nat_ipv4 nf_nat nf_conntrack libcrc32c iptable_mangle
>>>>>>> iptable_raw
>>>>>>> iptable_security ebtable_filter ebtables ip6table_filter ip6_tables
>>>>>>> snd_hda_codec_generic kvm_intel kvm snd_hda_intel snd_hda_codec
>>>>>>> irqbypass
>>>>>>> ppdev snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm
>>>>>>> bochs_drm ttm
>>>>>>> joydev drm_kms_helper virtio_balloon snd_timer snd parport_pc
>>>>>>> drm soundcore
>>>>>>> parport i2c_piix4 nls_utf8 isofs squashfs zstd_decompress xxhash
>>>>>>> 8021q garp
>>>>>>> mrp stp llc virtio_net
>>>>>>> [   30.115605]  virtio_console virtio_scsi crct10dif_pclmul
>>>>>>> crc32_pclmul
>>>>>>> crc32c_intel ghash_clmulni_intel serio_raw virtio_pci
>>>>>>> virtio_ring virtio
>>>>>>> ata_generic pata_acpi qemu_fw_cfg sunrpc scsi_transport_iscsi loop
>>>>>>> [   30.117425] CPU: 0 PID: 1347 Comm: gnome-shell Not tainted
>>>>>>> 4.15.0-0.rc0.git6.1.fc28.x86_64 #1
>>>>>>> [   30.118141] Hardware name: QEMU Standard PC (i440FX + PIIX,
>>>>>>> 1996), BIOS
>>>>>>> 1.10.2-2.fc27 04/01/2014
>>>>>>> [   30.118866] task: ffff923a77e03380 task.stack: ffffa78182228000
>>>>>>> [   30.119366] RIP: 0010:__alloc_pages_nodemask+0x35e/0x430
>>>>>>> [   30.119810] RSP: 0000:ffffa7818222bba8 EFLAGS: 00010202
>>>>>>> [   30.120250] RAX: 0000000000000001 RBX: 00000000014382c6 RCX:
>>>>>>> 0000000000000006
>>>>>>> [   30.120840] RDX: 0000000000000000 RSI: 0000000000000009 RDI:
>>>>>>> 0000000000000000
>>>>>>> [   30.121443] RBP: ffff923a760d6000 R08: 0000000000000000 R09:
>>>>>>> 0000000000000006
>>>>>>> [   30.122039] R10: 0000000000000040 R11: 0000000000000300 R12:
>>>>>>> ffff923a729273c0
>>>>>>> [   30.122629] R13: 0000000000000000 R14: 0000000000000000 R15:
>>>>>>> ffff923a7483d400
>>>>>>> [   30.123223] FS:  00007fe48da7dac0(0000)
>>>>>>> GS:ffff923a7cc00000(0000)
>>>>>>> knlGS:0000000000000000
>>>>>>> [   30.123896] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>>>>> [   30.124373] CR2: 00007fe457b73000 CR3: 0000000078313000 CR4:
>>>>>>> 00000000000006f0
>>>>>>> [   30.124968] Call Trace:
>>>>>>> [   30.125186]  ttm_pool_populate+0x19b/0x400 [ttm]
>>>>>>> [   30.125578]  ttm_bo_vm_fault+0x325/0x570 [ttm]
>>>>>>> [   30.125964]  __do_fault+0x19/0x11e
>>>>>>> [   30.126255]  __handle_mm_fault+0xcd3/0x1260
>>>>>>> [   30.126609]  handle_mm_fault+0x14c/0x310
>>>>>>> [   30.126947]  __do_page_fault+0x28c/0x530
>>>>>>> [   30.127282]  do_page_fault+0x32/0x270
>>>>>>> [   30.127593]  async_page_fault+0x22/0x30
>>>>>>> [   30.127922] RIP: 0033:0x7fe48aae39a8
>>>>>>> [   30.128225] RSP: 002b:00007ffc21c4d928 EFLAGS: 00010206
>>>>>>> [   30.128664] RAX: 00007fe457b73000 RBX: 000055cd4c1041a0 RCX:
>>>>>>> 00007fe457b73040
>>>>>>> [   30.129259] RDX: 0000000000300000 RSI: 0000000000000000 RDI:
>>>>>>> 00007fe457b73000
>>>>>>> [   30.129855] RBP: 0000000000000300 R08: 000000000000000c R09:
>>>>>>> 0000000100000000
>>>>>>> [   30.130457] R10: 0000000000000001 R11: 0000000000000246 R12:
>>>>>>> 000055cd4c1041a0
>>>>>>> [   30.131054] R13: 000055cd4bdfe990 R14: 000055cd4c104110 R15:
>>>>>>> 0000000000000400
>>>>>>> [   30.131648] Code: 11 01 00 0f 84 a9 00 00 00 65 ff 0d 6d cc
>>>>>>> dd 44 e9 0f
>>>>>>> ff ff ff 40 80 cd 80 e9 99 fe ff ff 48 89 c7 e8 e7 f6 01 00 e9
>>>>>>> b7 fe ff ff
>>>>>>> <0f> 0b 0f ff e9 40 fd ff ff 65 48 8b 04 25 80 d5 00 00 8b 40 4c
>>>>>>> [   30.133245] RIP: __alloc_pages_nodemask+0x35e/0x430 RSP:
>>>>>>> ffffa7818222bba8
>>>>>>> [   30.133836] ---[ end trace d4f1deb60784f40a ]---
>>>>>>>
>>>>>>> This is based off of Linus' master branch at
>>>>>>> c8a0739b185d11d6e2ca7ad9f5835841d1cfc765
>>>>>>> Configs are at
>>>>>>> https://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/fedora.git/commit/?h=rawhide&id=0be14662c54f49b4e640868b9d67df18d39edff0
>>>>>>>
>>>>>>>
>>>>>> Looks like a TTM regression due to:
>>>>>>
>>>>>> 0284f1ead87463bc17cf5e81a24fc65c052486f3
>>>>>> drm/ttm: add transparent huge page support for cached allocations v2
>>>>>>
>>>>>> If the driver requests dma32 pages, we can end up trying to alloc
>>>>>> huge
>>>>>> dma32 pages which triggers the oops. The bochs driver always
>>>>>> requests
>>>>>> dma32 here.
>>>>>>
>>>>>> I'll send a rough patch once I boot it.
>>>>>>
>>>>>> Dave.
>>>>>
>>>>> Hi Dave,
>>>>>
>>>>> fyi only: It looks like this is not the only regression in this
>>>>> cycle with
>>>>> ttm, novueau seems to suffer as well [1].
>>>> Adding ttm folks. Might be useful if we have an entry for ttm in
>>>> MAINTAINERS ...
>>>> -Daniel
>>>
>>>
>>> A bit more of investigation for the nouveau regression: This only
>>> show when Transparent Hugepages (CONFIG_TRANSPARENT_HUGEPAGE) are
>>> enable. Thanks Dave for pointing me to that!
>>
>> Yeah, sorry for that. I missed to handle the DMA32 case with
>> transparent huge page support.
>>
>> Dave already came up with a fix which should be already submitted.
>>
>> Christian.
>
>
> Hi Christian,
>
> no problem, rc1 isn't even released, so hitting bugs is expected! Yet
> Daves fix ("drm/ttm: don't attempt to use hugepages if dma32 requested
> (v2)" [1]) is not enough to fix the problem and a similiar backtrace
> to the one posted below in my first replay to this thread can be
> observed with Daves patch applied [2].

Hi Tobias,

I don't want to disappoint you, but that looks like something different.

TTM tries to swap something out and runs into a BUG() somewhere in the
shmem handling.

Please bisect this one separately.

Thanks,
Christian.

>
>
> Greetings,
>
> Tobias
>
>
> [1] https://patchwork.freedesktop.org/patch/189812/
>
> [2]:
>
>
> [  171.559316] ------------[ cut here ]------------
> [  171.559335] kernel BUG at mm/shmem.c:4334!
> [  171.559342] invalid opcode: 0000 [#1] PREEMPT SMP
> [  171.559344] Modules linked in: fuse rfcomm af_packet bnep uvcvideo
> rtsx_usb_ms arc4 memstick videobuf2_vmalloc videobuf2_memops
> videobuf2_v4l2 videodev videobuf2_core btusb btrtl btbcm msr
> nls_iso8859_1 nls_cp437 vfat fat joydev hid_multitouch
> snd_hda_codec_hdmi ath10k_pci ath10k_core ath iTCO_wdt
> iTCO_vendor_support mac80211 snd_hda_codec_realtek intel_rapl
> snd_hda_codec_generic cfg80211 r8169 mii x86_pkg_temp_thermal
> intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul
> crc32_pclmul intel_wmi_thunderbolt crc32c_intel acer_wmi sparse_keymap
> ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep
> pcbc wmi_bmof snd_pcm snd_timer aesni_intel snd aes_x86_64 crypto_simd
> glue_helper cryptd pcspkr soundcore mei_me i2c_i801 mei thermal shpchp
> idma64 hci_uart serdev btqca intel_pch_thermal
> [  171.559401]  intel_lpss_pci btintel ucsi_acpi bluetooth typec_ucsi
> tps6598x ecdh_generic ac typec battery rfkill tpm_crb tpm_tis
> tpm_tis_core pinctrl_sunrisepoint intel_lpss_acpi pinctrl_intel
> intel_lpss tpm acpi_pad hid_generic usbhid rtsx_usb_sdmmc mmc_core
> rtsx_usb nouveau mxm_wmi ttm serio_raw i915 i2c_algo_bit
> drm_kms_helper syscopyarea sysfillrect xhci_pci sysimgblt fb_sys_fops
> xhci_hcd usbcore drm i2c_hid wmi video button sg efivarfs
> [  171.559437] CPU: 4 PID: 131 Comm: kworker/u16:2 Tainted: G       
> W        4.14.0-desktop-rc0-debug+ #4
> [  171.559439] Hardware name: Acer Aspire VN7-593G/Pluto_KLS, BIOS
> V1.06 07/05/2017
> [  171.559445] Workqueue: ttm_swap ttm_shrink_work [ttm]
> [  171.559448] task: ffff8f8c33b66400 task.stack: ffffa05fc1740000
> [  171.559453] RIP: 0010:shmem_read_mapping_page_gfp+0x4c/0x50
> [  171.559454] RSP: 0018:ffffa05fc1743d00 EFLAGS: 00010206
> [  171.559457] RAX: ffff8f8c30f34580 RBX: ffff8f8bcec83400 RCX:
> fffff74489520f80
> [  171.559459] RDX: 00000000014200ca RSI: 0000000000000000 RDI:
> ffff8f8c30f34360
> [  171.559460] RBP: ffffa05fc1743d08 R08: 0000000000000000 R09:
> ffffffffffffffff
> [  171.559462] R10: 0000000000000000 R11: 0000000000000001 R12:
> 0000000000000000
> [  171.559463] R13: ffff8f8c30f34580 R14: ffff8f8c323b7538 R15:
> ffff8f8c34ee7800
> [  171.559465] FS:  0000000000000000(0000) GS:ffff8f8c3ed00000(0000)
> knlGS:0000000000000000
> [  171.559467] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  171.559469] CR2: 00005583f0c37dc0 CR3: 00000001abc10004 CR4:
> 00000000003606e0
> [  171.559470] Call Trace:
> [  171.559476]  ttm_tt_swapout+0x156/0x280 [ttm]
> [  171.559482]  ttm_bo_swapout+0x217/0x260 [ttm]
> [  171.559486]  ? serio_raw_write+0x50/0x100 [serio_raw]
> [  171.559491]  ttm_shrink+0xab/0xe0 [ttm]
> [  171.559496]  ttm_shrink_work+0x14/0x20 [ttm]
> [  171.559499]  process_one_work+0x1e3/0x400
> [  171.559501]  ? process_one_work+0x17c/0x400
> [  171.559506]  worker_thread+0x30/0x3a0
> [  171.559510]  kthread+0x152/0x170
> [  171.559512]  ? process_one_work+0x400/0x400
> [  171.559514]  ? kthread_create_worker_on_cpu+0x40/0x40
> [  171.559518]  ret_from_fork+0x24/0x30
> [  171.559523] Code: 8d 55 f8 6a 00 45 31 c9 b9 01 00 00 00 e8 6d f0
> ff ff 85 c0 5a 59 74 04 48 98 c9 c3 48 8b 7d f8 e8 fa de fd ff 48 8b
> 45 f8 c9 c3 <0f> 0b 66 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb 48
> 83 ec
> [  171.559567] RIP: shmem_read_mapping_page_gfp+0x4c/0x50 RSP:
> ffffa05fc1743d00
> [  171.559570] ---[ end trace 3c2332c10029c3cd ]---
> [  185.835630] swiotlb_tbl_map_single: 24 callbacks suppressed
> [  185.835632] nouveau 0000:01:00.0: swiotlb buffer is full (sz:
> 2097152 bytes)
> [  185.835635] swiotlb: coherent allocation failed for device
> 0000:01:00.0 size=2097152
> [  185.835637] CPU: 1 PID: 68 Comm: kworker/1:1 Tainted: G      D
> W        4.14.0-desktop-rc0-debug+ #4
> [  185.835638] Hardware name: Acer Aspire VN7-593G/Pluto_KLS, BIOS
> V1.06 07/05/2017
> [  185.835642] Workqueue: pm pm_runtime_work
> [  185.835644] Call Trace:
> [  185.835648]  dump_stack+0x8e/0xcb
> [  185.835650]  swiotlb_alloc_coherent+0xe4/0x160
> [  185.835653]  x86_swiotlb_alloc_coherent+0x3e/0x50
> [  185.835659]  ttm_dma_pool_get_pages+0x1e1/0x5d0 [ttm]
> [  185.835664]  ttm_dma_populate+0x244/0x330 [ttm]
> [  185.835692]  nouveau_ttm_tt_populate+0x142/0x1f0 [nouveau]
> [  185.835695]  ttm_tt_bind+0x23/0x50 [ttm]
> [  185.835698]  ttm_bo_handle_move_mem+0x570/0x5a0 [ttm]
> [  185.835720]  ? gf119_disp_chan_uevent_fini+0x60/0x70 [nouveau]
> [  185.835724]  ttm_bo_evict+0x146/0x340 [ttm]
> [  185.835727]  ? retint_kernel+0x2d/0x2d
> [  185.835732]  ttm_mem_evict_first+0x14c/0x1b0 [ttm]
> [  185.835736]  ttm_bo_force_list_clean+0x68/0x130 [ttm]
> [  185.835739]  ? pci_pm_runtime_resume+0xa0/0xa0
> [  185.835741]  ttm_bo_evict_mm+0x21/0x50 [ttm]
> [  185.835762]  nouveau_do_suspend+0x7c/0x2b0 [nouveau]
> [  185.835780]  nouveau_pmops_runtime_suspend+0x54/0xc0 [nouveau]
> [  185.835783]  pci_pm_runtime_suspend+0x5a/0x170
> [  185.835785]  ? pci_pm_runtime_resume+0xa0/0xa0
> [  185.835787]  __rpm_callback+0xb4/0x1e0
> [  185.835789]  ? pci_pm_runtime_resume+0xa0/0xa0
> [  185.835791]  rpm_callback+0x1f/0x80
> [  185.835793]  ? pci_pm_runtime_resume+0xa0/0xa0
> [  185.835795]  rpm_suspend+0x119/0x530
> [  185.835797]  ? pm_runtime_work+0x19/0xc0
> [  185.835799]  pm_runtime_work+0x76/0xc0
> [  185.835802]  process_one_work+0x1e3/0x400
> [  185.835803]  ? process_one_work+0x17c/0x400
> [  185.835807]  worker_thread+0x30/0x3a0
> [  185.835809]  kthread+0x152/0x170
> [  185.835811]  ? process_one_work+0x400/0x400
> [  185.835813]  ? kthread_create_worker_on_cpu+0x40/0x40
> [  185.835815]  ret_from_fork+0x24/0x30
>
> ...
>
>>
>>>
>>>
>>> Greetings,
>>>
>>> Tobias
>>>
>>>
>>>>> Greetings,
>>>>>
>>>>> Tobias
>>>>>
>>>>>
>>>>> [1]:
>>>>>
>>>>>
>>>>> [  404.918139] ------------[ cut here ]------------
>>>>> [  404.918147] kernel BUG at mm/shmem.c:4334!
>>>>> [  404.918152] invalid opcode: 0000 [#2] PREEMPT SMP
>>>>> [  404.918157] Modules linked in: rfcomm af_packet bnep uvcvideo
>>>>> videobuf2_vmalloc videobuf2_memops rtsx_usb_ms videobuf2_v4l2
>>>>> memstick
>>>>> videodev videobuf2_core btusb btrtl btbcm arc4 msr snd_hda_codec_hdmi
>>>>> snd_hda_codec_realtek snd_hda_codec_generic joydev nls_iso8859_1
>>>>> nls_cp437
>>>>> hid_multitouch vfat fat iTCO_wdt iTCO_vendor_support intel_rapl
>>>>> x86_pkg_temp_thermal intel_powerclamp ath10k_pci coretemp
>>>>> ath10k_core ath
>>>>> kvm_intel mac80211 kvm irqbypass crct10dif_pclmul crc32_pclmul
>>>>> crc32c_intel
>>>>> ghash_clmulni_intel r8169 mii snd_hda_intel pcbc cfg80211
>>>>> snd_hda_codec
>>>>> wmi_bmof snd_hda_core snd_hwdep acer_wmi sparse_keymap snd_pcm
>>>>> intel_wmi_thunderbolt aesni_intel snd_timer aes_x86_64 crypto_simd
>>>>> glue_helper cryptd snd soundcore idma64 pcspkr i2c_i801 mei_me shpchp
>>>>> intel_pch_thermal mei intel_lpss_pci ucsi_acpi
>>>>> [  404.918239]  typec_ucsi thermal hci_uart serdev btqca tps6598x
>>>>> typec
>>>>> btintel tpm_crb ac bluetooth tpm_tis intel_lpss_acpi tpm_tis_core
>>>>> ecdh_generic battery pinctrl_sunrisepoint rfkill pinctrl_intel
>>>>> intel_lpss
>>>>> tpm acpi_pad hid_generic usbhid rtsx_usb_sdmmc mmc_core rtsx_usb
>>>>> nouveau
>>>>> mxm_wmi ttm serio_raw i915 i2c_algo_bit drm_kms_helper syscopyarea
>>>>> xhci_pci
>>>>> sysfillrect sysimgblt fb_sys_fops xhci_hcd drm usbcore i2c_hid wmi
>>>>> video
>>>>> button sg efivarfs
>>>>> [  404.918289] CPU: 1 PID: 2739 Comm: Civ6 Tainted: G D
>>>>> 4.14.0-desktop-rc0-debug+ #1
>>>>> [  404.918295] Hardware name: Acer Aspire VN7-593G/Pluto_KLS, BIOS
>>>>> V1.06
>>>>> 07/05/2017
>>>>> [  404.918301] task: ffff9b3b49c7e280 task.stack: ffffb9a2035b4000
>>>>> [  404.918308] RIP: 0010:shmem_read_mapping_page_gfp+0x4c/0x50
>>>>> [  404.918313] RSP: 0018:ffffb9a2035b79c0 EFLAGS: 00010206
>>>>> [  404.918317] RAX: ffff9b3b4dd17700 RBX: ffff9b3b759cb900 RCX:
>>>>> ffffe4f10ac8b2c0
>>>>> [  404.918322] RDX: 00000000014200ca RSI: 0000000000000000 RDI:
>>>>> ffff9b3b4dd174e0
>>>>> [  404.918327] RBP: ffffb9a2035b79c8 R08: 0000000000000000 R09:
>>>>> ffffffffffffffff
>>>>> [  404.918332] R10: 0000000000000000 R11: 0000000000000000 R12:
>>>>> 0000000000000000
>>>>> [  404.918337] R13: ffff9b3b4dd17700 R14: ffff9b3b7253eb38 R15:
>>>>> ffff9b3b75341000
>>>>> [  404.918343] FS:  00007fa952f69700(0000) GS:ffff9b3b7ec40000(0000)
>>>>> knlGS:0000000000000000
>>>>> [  404.918348] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>>> [  404.918353] CR2: 0000560940b5d000 CR3: 0000000193e94004 CR4:
>>>>> 00000000003606e0
>>>>> [  404.918358] Call Trace:
>>>>> [  404.918365]  ttm_tt_swapout+0x156/0x280 [ttm]
>>>>> [  404.918371]  ttm_bo_swapout+0x217/0x260 [ttm]
>>>>> [  404.918379]  ttm_shrink+0xab/0xe0 [ttm]
>>>>> [  404.918384] ttm_mem_global_alloc_zone.constprop.6+0xd1/0x140 [ttm]
>>>>> [  404.918391]  ttm_mem_global_alloc+0x11/0x20 [ttm]
>>>>> [  404.918397]  ttm_bo_init_reserved+0x47/0x4f0 [ttm]
>>>>> [  404.918403]  ttm_bo_init+0x29/0xa0 [ttm]
>>>>> [  404.918430]  ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau]
>>>>> [  404.918454]  nouveau_bo_new+0x3f5/0x550 [nouveau]
>>>>> [  404.918474]  ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau]
>>>>> [  404.918495]  nouveau_gem_new+0x48/0x100 [nouveau]
>>>>> [  404.918514]  nouveau_gem_ioctl_new+0x45/0xc0 [nouveau]
>>>>> [  404.918532]  ? nouveau_gem_new+0x100/0x100 [nouveau]
>>>>> [  404.918543]  drm_ioctl_kernel+0x58/0xb0 [drm]
>>>>> [  404.918551]  drm_ioctl+0x315/0x3d0 [drm]
>>>>> [  404.918568]  ? nouveau_gem_new+0x100/0x100 [nouveau]
>>>>> [  404.918576]  ? trace_hardirqs_on+0xd/0x10
>>>>> [  404.918595]  nouveau_drm_ioctl+0x6d/0xb0 [nouveau]
>>>>> [  404.918601]  do_vfs_ioctl+0x8e/0x660
>>>>> [  404.918605]  ? __fget+0x102/0x1f0
>>>>> [  404.918609]  SyS_ioctl+0x74/0x80
>>>>> [  404.918615]  entry_SYSCALL_64_fastpath+0x23/0x9a
>>>>> [  404.918619] RIP: 0033:0x7fa96396d2f7
>>>>> [  404.918622] RSP: 002b:00007fa952f43728 EFLAGS: 00000246 ORIG_RAX:
>>>>> 0000000000000010
>>>>> [  404.918628] RAX: ffffffffffffffda RBX: 00007fa93cad59c0 RCX:
>>>>> 00007fa96396d2f7
>>>>> [  404.918633] RDX: 00007fa952f43780 RSI: 00000000c0306480 RDI:
>>>>> 0000000000000022
>>>>> [  404.918638] RBP: 0000000000100000 R08: 0000000000000000 R09:
>>>>> 0000000000000000
>>>>> [  404.918643] R10: 00007fa852fa0260 R11: 0000000000000246 R12:
>>>>> 00007fa91c053370
>>>>> [  404.918648] R13: 0000000000100000 R14: 00007fa93e579a70 R15:
>>>>> 00007fa8530a1aa0
>>>>> [  404.918656] Code: 8d 55 f8 6a 00 45 31 c9 b9 01 00 00 00 e8 6d
>>>>> f0 ff ff
>>>>> 85 c0 5a 59 74 04 48 98 c9 c3 48 8b 7d f8 e8 fa de fd ff 48 8b 45
>>>>> f8 c9 c3
>>>>> <0f> 0b 66 90 55 48 89 e5 41 56 41 55 41 54 53 48 89 fb 48 83 ec
>>>>> [  404.918698] RIP: shmem_read_mapping_page_gfp+0x4c/0x50 RSP:
>>>>> ffffb9a2035b79c0
>>>>> [  404.918711] ---[ end trace 53b254d8157cf0e7 ]---
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> dri-devel mailing list
>>>>> dri-devel@lists.freedesktop.org
>>>>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>>
>>

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