Re: amd-staging-drm-next breaks suspend

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Unfortunately this does not work either:

[    0.859998] ------------[ cut here ]------------
[    0.859998] trying to bind memory to uninitialized GART !
[    0.860003] WARNING: CPU: 13 PID: 235 at
drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c:254 amdgpu_gart_bind+0x29/0x40
[amdgpu]
[    0.860099] Modules linked in: amdgpu(+) drm_ttm_helper ttm
gpu_sched i2c_algo_bit drm_kms_helper syscopyarea hid_sensor_hub
sysfillrect mfd_core sysimgblt hid_generic fb_sys_fops cec xhci_pci
xhci_hcd nvme drm r8169 nvme_core psmouse crc32c_intel realtek amd_sfh
usbcore i2c_hid_acpi mdio_devres t10_pi crc_t10dif i2c_hid i2c_piix4
crct10dif_generic libphy crct10dif_common hid backlight
i2c_designware_platform i2c_designware_core
[    0.860113] CPU: 13 PID: 235 Comm: systemd-udevd Not tainted 5.13.0+
#15
[    0.860115] Hardware name: Micro-Star International Co., Ltd. Alpha
15 B5EEK/MS-158L, BIOS E158LAMS.107 11/10/2021
[    0.860116] RIP: 0010:amdgpu_gart_bind+0x29/0x40 [amdgpu]
[    0.860210] Code: 00 80 bf 34 25 00 00 00 74 14 4c 8b 8f 20 25 00 00
4d 85 c9 74 05 e9 16 ff ff ff 31 c0 c3 48 c7 c7 08 06 7d c0 e8 8e cc 31
e2 <0f> 0b b8 ea ff ff ff c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
[    0.860212] RSP: 0018:ffffbb9e80b6f968 EFLAGS: 00010286
[    0.860213] RAX: 0000000000000000 RBX: 0000000000000067 RCX:
ffffffffa3080968
[    0.860214] RDX: 0000000000000000 RSI: 00000000ffffefff RDI:
ffffffffa3028960
[    0.860215] RBP: ffff947c91e49a80 R08: 0000000000000000 R09:
ffffbb9e80b6f798
[    0.860215] R10: ffffbb9e80b6f790 R11: ffffffffa30989a8 R12:
0000000000000000
[    0.860216] R13: ffff947c8a740000 R14: ffff947c8a740000 R15:
0000000000000000
[    0.860216] FS:  00007f60a3c918c0(0000) GS:ffff947f5e940000(0000)
knlGS:0000000000000000
[    0.860217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    0.860218] CR2: 00007f60a4213480 CR3: 0000000135ee2000 CR4:
0000000000550ee0
[    0.860218] PKRU: 55555554
[    0.860219] Call Trace:
[    0.860221]  amdgpu_ttm_gart_bind+0x74/0xc0 [amdgpu]
[    0.860305]  amdgpu_ttm_alloc_gart+0x13e/0x190 [amdgpu]
[    0.860385]  amdgpu_bo_create_reserved.part.0+0xf3/0x1b0 [amdgpu]
[    0.860465]  ? amdgpu_ttm_debugfs_init+0x110/0x110 [amdgpu]
[    0.860554]  amdgpu_bo_create_kernel+0x36/0xa0 [amdgpu]
[    0.860641]  amdgpu_ttm_init.cold+0x167/0x181 [amdgpu]
[    0.860784]  gmc_v10_0_sw_init+0x2d7/0x430 [amdgpu]
[    0.860889]  amdgpu_device_init.cold+0x147f/0x1ad7 [amdgpu]
[    0.861007]  ? acpi_ns_get_node+0x4a/0x55
[    0.861011]  ? acpi_get_handle+0x89/0xb2
[    0.861012]  amdgpu_driver_load_kms+0x55/0x290 [amdgpu]
[    0.861098]  amdgpu_pci_probe+0x181/0x250 [amdgpu]
[    0.861188]  pci_device_probe+0xcd/0x140
[    0.861191]  really_probe+0xed/0x460
[    0.861193]  driver_probe_device+0xe3/0x150
[    0.861195]  device_driver_attach+0x9c/0xb0
[    0.861196]  __driver_attach+0x8a/0x150
[    0.861197]  ? device_driver_attach+0xb0/0xb0
[    0.861198]  ? device_driver_attach+0xb0/0xb0
[    0.861198]  bus_for_each_dev+0x73/0xb0
[    0.861200]  bus_add_driver+0x121/0x1e0
[    0.861201]  driver_register+0x8a/0xe0
[    0.861202]  ? 0xffffffffc1117000
[    0.861203]  do_one_initcall+0x47/0x180
[    0.861205]  ? do_init_module+0x19/0x230
[    0.861208]  ? kmem_cache_alloc+0x182/0x260
[    0.861210]  do_init_module+0x51/0x230
[    0.861211]  __do_sys_finit_module+0xb1/0x110
[    0.861213]  do_syscall_64+0x40/0xb0
[    0.861216]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[    0.861218] RIP: 0033:0x7f60a4149679
[    0.861220] Code: 48 8d 3d 9a a1 0c 00 0f 05 eb a5 66 0f 1f 44 00 00
48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c7 57 0c 00 f7 d8 64 89 01 48
[    0.861221] RSP: 002b:00007ffe25f17ea8 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[    0.861223] RAX: ffffffffffffffda RBX: 000056004a10a660 RCX:
00007f60a4149679
[    0.861224] RDX: 0000000000000000 RSI: 00007f60a42e9eed RDI:
0000000000000016
[    0.861224] RBP: 0000000000020000 R08: 0000000000000000 R09:
000056004a105980
[    0.861225] R10: 0000000000000016 R11: 0000000000000246 R12:
00007f60a42e9eed
[    0.861225] R13: 0000000000000000 R14: 000056004a0efdd0 R15:
000056004a10a660
[    0.861226] ---[ end trace 0319f26df48f8ef0 ]---
[    0.861228] [drm:amdgpu_ttm_gart_bind [amdgpu]] *ERROR* failed to
bind 1 pages at 0x00400000
[    0.861540] amdgpu 0000:03:00.0: amdgpu: 00000000a9dfe17c bind
failed


Am Mittwoch, dem 19.01.2022 um 19:54 -0500 schrieb Alex Deucher:
> On Wed, Jan 19, 2022 at 7:48 PM Bert Karwatzki <spasswolf@xxxxxx>
> wrote:
> >
> > Bisected the error and found the first bad commit to be
> > d015e9861e55928a78137a2c95897bc50637fc47 is the first bad commit
> > commit d015e9861e55928a78137a2c95897bc50637fc47
> > Author: Jonathan Kim <jonathan.kim@xxxxxxx>
> > Date:   Thu Dec 9 16:48:56 2021 -0500
> >
> >     drm/amdgpu: improve debug VRAM access performance using sdma
> >
> >     For better performance during VRAM access for debugged
> > processes,
> > do
> >     read/write copies over SDMA.
> >
> >     In order to fulfill post mortem debugging on a broken device,
> > fallback to
> >     stable MMIO access when gpu recovery is disabled or when job
> > submission
> >     time outs are set to max.  Failed SDMA access should
> > automatically
> > fall
> >     back to MMIO access.
> >
> >     Use a pre-allocated GTT bounce buffer pre-mapped into GART to
> > avoid
> >     page-table updates and TLB flushes on access.
> >
> >     Signed-off-by: Jonathan Kim <jonathan.kim@xxxxxxx>
> >     Reviewed-by: Felix Kuehling <felix.kuehling@xxxxxxx>
> >
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 78
> > +++++++++++++++++++++++++++++++++
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h |  4 ++
> >  2 files changed, 82 insertions(+)
>
> Should be fixed with:
> https://patchwork.freedesktop.org/patch/470069/
>
> Alex
>
> >
> >
> > Am Donnerstag, dem 20.01.2022 um 00:22 +0100 schrieb Bert
> > Karwatzki:
> > > Reverting commit 72f686438de13f121c52f58d7445570a33dfdc61 does
> > > not
> > > change the errors:
> > > [    1.310550] ------------[ cut here ]------------
> > > [    1.310551] trying to bind memory to uninitialized GART !
> > > [    1.310556] WARNING: CPU: 9 PID: 252 at
> > > drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c:254
> > > amdgpu_gart_bind+0x2e/0x40
> > > [amdgpu]
> > > [    1.310659] Modules linked in: amdgpu(+) gpu_sched
> > > i2c_algo_bit
> > > drm_ttm_helper hid_sensor_hub ttm hid_generic nvme drm_kms_helper
> > > nvme_core cec xhci_pci t10_pi r8169 rc_core crc32_pclmul
> > > crc_t10dif
> > > i2c_hid_acpi realtek xhci_hcd psmouse crc32c_intel
> > > crct10dif_generic
> > > i2c_hid amd_sfh mdio_devres crct10dif_pclmul drm i2c_piix4
> > > usbcore
> > > libphy crct10dif_common wmi button battery video fjes(-) hid
> > > [    1.310672] CPU: 9 PID: 252 Comm: systemd-udevd Not tainted
> > > 5.13.0+
> > > #4
> > > [    1.310673] Hardware name: Micro-Star International Co., Ltd.
> > > Alpha
> > > 15 B5EEK/MS-158L, BIOS E158LAMS.107 11/10/2021
> > > [    1.310674] RIP: 0010:amdgpu_gart_bind+0x2e/0x40 [amdgpu]
> > > [    1.310762] Code: 00 80 bf 34 25 00 00 00 74 14 4c 8b 8f 20 25
> > > 00
> > > 00
> > > 4d 85 c9 74 05 e9 01 ff ff ff 31 c0 c3 48 c7 c7 68 36 dd c0 e8 86
> > > db
> > > 19
> > > e8 <0f> 0b b8 ea ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
> > > 44
> > > 00
> > > [    1.310763] RSP: 0018:ffffb19d00c33920 EFLAGS: 00010282
> > > [    1.310764] RAX: 0000000000000000 RBX: 0000000000000067 RCX:
> > > ffffffffa9abb208
> > > [    1.310765] RDX: 0000000000000000 RSI: 00000000ffffefff RDI:
> > > ffffffffa9a63200
> > > [    1.310766] RBP: ffff985ce2a796c0 R08: 0000000000000000 R09:
> > > ffffb19d00c33748
> > > [    1.310766] R10: ffffb19d00c33740 R11: ffffffffa9ad3248 R12:
> > > 0000000000000000
> > > [    1.310766] R13: ffff985cd45a0000 R14: ffff985cd45a0000 R15:
> > > 0000000000000000
> > > [    1.310767] FS:  00007f69fabdc8c0(0000)
> > > GS:ffff985f9e640000(0000)
> > > knlGS:0000000000000000
> > > [    1.310768] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > > [    1.310768] CR2: 00007f69fabc5dca CR3: 00000001139ec000 CR4:
> > > 0000000000750ee0
> > > [    1.310769] PKRU: 55555554
> > > [    1.310770] Call Trace:
> > > [    1.310772]  amdgpu_ttm_gart_bind+0x79/0xc0 [amdgpu]
> > > [    1.310858]  amdgpu_ttm_alloc_gart+0x146/0x1a0 [amdgpu]
> > > [    1.310942]  amdgpu_bo_create_reserved.part.0+0xf8/0x1b0
> > > [amdgpu]
> > > [    1.311025]  ? amdgpu_ttm_debugfs_init+0x110/0x110 [amdgpu]
> > > [    1.311145]  amdgpu_bo_create_kernel+0x3b/0xa0 [amdgpu]
> > > [    1.311229]  amdgpu_ttm_init.cold+0x165/0x17f [amdgpu]
> > > [    1.311349]  gmc_v10_0_sw_init+0x2dc/0x430 [amdgpu]
> > > [    1.311455]  amdgpu_device_init.cold+0x1544/0x1b54 [amdgpu]
> > > [    1.311570]  ? acpi_ns_get_node+0x4f/0x5a
> > > [    1.311574]  ? acpi_get_handle+0x8e/0xb7
> > > [    1.311576]  amdgpu_driver_load_kms+0x67/0x320 [amdgpu]
> > > [    1.311664]  amdgpu_pci_probe+0x1bc/0x290 [amdgpu]
> > > [    1.311750]  local_pci_probe+0x42/0x80
> > > [    1.311753]  ? __cond_resched+0x16/0x40
> > > [    1.311755]  pci_device_probe+0xfd/0x1b0
> > > [    1.311756]  really_probe+0xf2/0x460
> > > [    1.311759]  driver_probe_device+0xe8/0x160
> > > [    1.311760]  device_driver_attach+0xa1/0xb0
> > > [    1.311761]  __driver_attach+0x8f/0x150
> > > [    1.311763]  ? device_driver_attach+0xb0/0xb0
> > > [    1.311764]  ? device_driver_attach+0xb0/0xb0
> > > [    1.311765]  bus_for_each_dev+0x78/0xc0
> > > [    1.311766]  bus_add_driver+0x12b/0x1e0
> > > [    1.311768]  driver_register+0x8f/0xe0
> > > [    1.311769]  ? 0xffffffffc1828000
> > > [    1.311770]  do_one_initcall+0x44/0x1d0
> > > [    1.311772]  ? kmem_cache_alloc_trace+0x103/0x240
> > > [    1.311775]  do_init_module+0x5c/0x270
> > > [    1.311777]  __do_sys_finit_module+0xb1/0x110
> > > [    1.311779]  do_syscall_64+0x40/0xb0
> > > [    1.311781]  entry_SYSCALL_64_after_hwframe+0x44/0xae
> > > [    1.311783] RIP: 0033:0x7f69fb094679
> > > [    1.311785] Code: 48 8d 3d 9a a1 0c 00 0f 05 eb a5 66 0f 1f 44
> > > 00
> > > 00
> > > 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24
> > > 08
> > > 0f
> > > 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c7 57 0c 00 f7 d8 64 89
> > > 01
> > > 48
> > > [    1.311786] RSP: 002b:00007ffce4131708 EFLAGS: 00000246
> > > ORIG_RAX:
> > > 0000000000000139
> > > [    1.311788] RAX: ffffffffffffffda RBX: 000055d71350a3a0 RCX:
> > > 00007f69fb094679
> > > [    1.311788] RDX: 0000000000000000 RSI: 00007f69fb234eed RDI:
> > > 0000000000000013
> > > [    1.311789] RBP: 0000000000020000 R08: 0000000000000000 R09:
> > > 000055d7134f3930
> > > [    1.311789] R10: 0000000000000013 R11: 0000000000000246 R12:
> > > 00007f69fb234eed
> > > [    1.311790] R13: 0000000000000000 R14: 000055d7134da0f0 R15:
> > > 000055d71350a3a0
> > > [    1.311791] ---[ end trace ff47998e3140e95d ]---
> > > [    1.311793] [drm:amdgpu_ttm_gart_bind [amdgpu]] *ERROR* failed
> > > to
> > > bind 1 pages at 0x00400000
> > > [    1.312100] amdgpu 0000:03:00.0: amdgpu: 00000000989bdfac bind
> > > failed
> > >
> > > and using https://patchwork.freedesktop.org/patch/469907/
> > > gives a this message:
> > >
> > > [    1.311502] ------------[ cut here ]------------
> > > [    1.311502] WARNING: CPU: 9 PID: 221 at
> > > drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c:244
> > > amdgpu_gart_bind+0x16/0x20
> > > [amdgpu]
> > > [    1.311602] Modules linked in: amdgpu(+) gpu_sched
> > > i2c_algo_bit
> > > drm_ttm_helper hid_sensor_hub ttm hid_generic nvme xhci_pci
> > > drm_kms_helper nvme_core t10_pi xhci_hcd crc_t10dif r8169 cec
> > > crct10dif_generic i2c_hid_acpi amd_sfh rc_core crct10dif_pclmul
> > > realtek
> > > i2c_hid crc32_pclmul mdio_devres psmouse usbcore crc32c_intel drm
> > > libphy i2c_piix4 crct10dif_common button wmi battery video fjes(-
> > > )
> > > hid
> > > [    1.311614] CPU: 9 PID: 221 Comm: systemd-udevd Not tainted
> > > 5.13.0+
> > > #6
> > > [    1.311616] Hardware name: Micro-Star International Co., Ltd.
> > > Alpha
> > > 15 B5EEK/MS-158L, BIOS E158LAMS.107 11/10/2021
> > > [    1.311617] RIP: 0010:amdgpu_gart_bind+0x16/0x20 [amdgpu]
> > > [    1.311701] Code: 39 df 74 aa eb dc e8 19 a2 f6 f0 66 0f 1f 84
> > > 00
> > > 00
> > > 00 00 00 0f 1f 44 00 00 4c 8b 8f 20 25 00 00 4d 85 c9 74 05 e9 3a
> > > ff
> > > ff
> > > ff <0f> 0b c3 0f 1f 80 00 00 00 00 0f 1f 44 00 00 55 48 89 fd 53
> > > 0f
> > > ae
> > > [    1.311702] RSP: 0018:ffffb5be80b17948 EFLAGS: 00010246
> > > [    1.311703] RAX: 0000000000000022 RBX: ffff98670583e858 RCX:
> > > ffff98677c8a8738
> > > [    1.311704] RDX: 0000000000000001 RSI: 0000000000400000 RDI:
> > > ffff986720ce0000
> > > [    1.311704] RBP: ffff986705841a08 R08: 0000000000000067 R09:
> > > 0000000000000000
> > > [    1.311705] R10: ffff986705841a08 R11: 0000000000000400 R12:
> > > 0000000000000000
> > > [    1.311705] R13: ffff98670dc50e40 R14: ffff986720ce0000 R15:
> > > 0000000000000000
> > > [    1.311706] FS:  00007ff4ee0968c0(0000)
> > > GS:ffff9869de840000(0000)
> > > knlGS:0000000000000000
> > > [    1.311707] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > > [    1.311707] CR2: 00007ff4ee07fdca CR3: 000000017b436000 CR4:
> > > 0000000000750ee0
> > > [    1.311708] PKRU: 55555554
> > > [    1.311708] Call Trace:
> > > [    1.311710]  amdgpu_ttm_alloc_gart+0x147/0x190 [amdgpu]
> > > [    1.311793]  amdgpu_bo_create_reserved.part.0+0xf8/0x1b0
> > > [amdgpu]
> > > [    1.311873]  ? amdgpu_ttm_debugfs_init+0x110/0x110 [amdgpu]
> > > [    1.311952]  amdgpu_bo_create_kernel+0x3b/0xa0 [amdgpu]
> > > [    1.312031]  amdgpu_ttm_init.cold+0x165/0x17f [amdgpu]
> > > [    1.312181]  gmc_v10_0_sw_init+0x2dc/0x430 [amdgpu]
> > > [    1.312275]  amdgpu_device_init.cold+0x1544/0x1b54 [amdgpu]
> > > [    1.312385]  ? acpi_ns_get_node+0x4f/0x5a
> > > [    1.312388]  ? acpi_get_handle+0x8e/0xb7
> > > [    1.312390]  amdgpu_driver_load_kms+0x67/0x320 [amdgpu]
> > > [    1.312479]  amdgpu_pci_probe+0x1bc/0x290 [amdgpu]
> > > [    1.312573]  local_pci_probe+0x42/0x80
> > > [    1.312578]  ? __cond_resched+0x16/0x40
> > > [    1.312581]  pci_device_probe+0xfd/0x1b0
> > > [    1.312583]  really_probe+0xf2/0x460
> > > [    1.312587]  driver_probe_device+0xe8/0x160
> > > [    1.312589]  device_driver_attach+0xa1/0xb0
> > > [    1.312591]  __driver_attach+0x8f/0x150
> > > [    1.312592]  ? device_driver_attach+0xb0/0xb0
> > > [    1.312593]  ? device_driver_attach+0xb0/0xb0
> > > [    1.312594]  bus_for_each_dev+0x78/0xc0
> > > [    1.312595]  bus_add_driver+0x12b/0x1e0
> > > [    1.312597]  driver_register+0x8f/0xe0
> > > [    1.312598]  ? 0xffffffffc1696000
> > > [    1.312599]  do_one_initcall+0x44/0x1d0
> > > [    1.312602]  ? kmem_cache_alloc_trace+0x103/0x240
> > > [    1.312604]  do_init_module+0x5c/0x270
> > > [    1.312606]  __do_sys_finit_module+0xb1/0x110
> > > [    1.312608]  do_syscall_64+0x40/0xb0
> > > [    1.312610]  entry_SYSCALL_64_after_hwframe+0x44/0xae
> > > [    1.312614] RIP: 0033:0x7ff4ee54e679
> > > [    1.312616] Code: 48 8d 3d 9a a1 0c 00 0f 05 eb a5 66 0f 1f 44
> > > 00
> > > 00
> > > 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24
> > > 08
> > > 0f
> > > 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c7 57 0c 00 f7 d8 64 89
> > > 01
> > > 48
> > > [    1.312617] RSP: 002b:00007fff9c9d5bc8 EFLAGS: 00000246
> > > ORIG_RAX:
> > > 0000000000000139
> > > [    1.312618] RAX: ffffffffffffffda RBX: 000055aca9cf9230 RCX:
> > > 00007ff4ee54e679
> > > [    1.312619] RDX: 0000000000000000 RSI: 00007ff4ee6eeeed RDI:
> > > 0000000000000013
> > > [    1.312619] RBP: 0000000000020000 R08: 0000000000000000 R09:
> > > 000055aca9cdf480
> > > [    1.312620] R10: 0000000000000013 R11: 0000000000000246 R12:
> > > 00007ff4ee6eeeed
> > > [    1.312620] R13: 0000000000000000 R14: 000055aca9cf9ab0 R15:
> > > 000055aca9cf9230
> > > [    1.312622] ---[ end trace c4fc99f16e2a1eb7 ]---
> > >
> > > In both cases there's a similar error message for the oth GPU in
> > > the
> > > system (the integrated one at 08:00.0)
> > >
> > > Am Mittwoch, dem 19.01.2022 um 23:40 +0100 schrieb Das, Nirmoy:
> > > >
> > > > On 1/19/2022 10:59 PM, Limonciello, Mario wrote:
> > > > > [Public]
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: Bert Karwatzki <spasswolf@xxxxxx>
> > > > > > Sent: Wednesday, January 19, 2022 15:52
> > > > > > To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > > > > > Cc: Limonciello, Mario <Mario.Limonciello@xxxxxxx>;
> > > > > > Kazlauskas,
> > > > > > Nicholas
> > > > > > <Nicholas.Kazlauskas@xxxxxxx>; Zhuo, Qingqing (Lillian)
> > > > > > <Qingqing.Zhuo@xxxxxxx>; Scott Bruce <smbruce@xxxxxxxxx>;
> > > > > > Alex
> > > > > > Deucher
> > > > > > <alexdeucher@xxxxxxxxx>; Chris Hixon
> > > > > > <linux-kernel-bugs@xxxxxxxxxxxxx>
> > > > > > Subject: amd-staging-drm-next breaks suspend
> > > > > >
> > > > > > I just tested drm-staging-drm-next with HEAD
> > > > > > f1b2924ee6929cb431440e6f961f06eb65d52beb:
> > > > > > Going into suspend leads to a hang again:
> > > > > > This is probably caused by
> > > > > > [ 1.310551] trying to bind memory to uninitialized GART !
> > > > > > and/or
> > > > > > [ 3.976438] trying to bind memory to uninitialized GART !
> > > >
> > > >
> > > > Could you please also try
> > > > https://patchwork.freedesktop.org/patch/469907/ ;?
> > > >
> > > >
> > > > Regards,
> > > >
> > > > Nirmoy
> > > >
> > > > > >
> >





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