* Re: radeon ARUBA NULL pointer dereference
[not found] ` <20240924020824.6264-1-user@am64>
@ 2024-09-24 12:20 ` Thomas Zimmermann
2024-09-24 12:42 ` Thomas Zimmermann
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Zimmermann @ 2024-09-24 12:20 UTC (permalink / raw)
To: Arthur Marsh
Cc: Xinhui.Pan, airlied, alexander.deucher, amd-gfx, christian.koenig,
daniel, dri-devel, linux-kernel, wuhoipok, iommu,
the arch/x86 maintainers
(cc: DMA and x86 folks)
Hi
Am 24.09.24 um 04:08 schrieb Arthur Marsh:
> Using current Linus git head kernel, I was able to save the dmesg output:
>
> [ 17.218724] [drm] radeon kernel modesetting enabled.
> [ 17.218778] radeon 0000:00:01.0: vgaarb: deactivate vga console
> [ 17.219509] Console: switching to colour dummy device 80x25
> [ 17.219700] [drm] initializing kernel modesetting (ARUBA 0x1002:0x990C 0x1002:0x0123 0x00).
> [ 17.219773] ATOM BIOS: 113
> [ 17.219838] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
> [ 17.219841] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
> [ 17.219844] [drm] Detected VRAM RAM=768M, BAR=256M
> [ 17.219845] [drm] RAM width 64bits DDR
> [ 17.219851] BUG: kernel NULL pointer dereference, address: 00000000000000a0
This is 160 bytes behind NULL, which indicates a field within a struct.
> [ 17.219852] #PF: supervisor read access in kernel mode
> [ 17.219853] #PF: error_code(0x0000) - not-present page
> [ 17.219854] PGD 0 P4D 0
> [ 17.219856] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
> [ 17.219858] CPU: 0 UID: 0 PID: 451 Comm: udevd Not tainted 6.11.0+ #6121
> [ 17.219860] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
> [ 17.219862] RIP: 0010:dma_get_required_mask+0x11/0x50
> [ 17.219868] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 68 02 00 00 48 85 c0 74 11 <48> 8b 80 a0 00 00 00 48 85 c0 74 1f e9 ee ed 94 00 f6 87 2c 03 00
> [ 17.219870] RSP: 0018:ffffa54bc13a7b00 EFLAGS: 00010202
> [ 17.219871] RAX: 0000000000000000 RBX: 000000ffffffffff RCX: 0000000000000000
> [ 17.219872] RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffff976f44e720c8
> [ 17.219873] RBP: ffff976f44e720c8 R08: 00000000ffffefff R09: ffffffffab2aab08
> [ 17.219874] R10: 00000000fffff000 R11: 0000000000000002 R12: 0000000000000000
> [ 17.219875] R13: ffff976f48a4aa30 R14: 0000000000000000 R15: 0000000000000028
> [ 17.219876] FS: 00007f59a070d840(0000) GS:ffff97726f800000(0000) knlGS:0000000000000000
> [ 17.219878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 17.219879] CR2: 00000000000000a0 CR3: 00000001053b4000 CR4: 00000000000406f0
> [ 17.219880] Call Trace:
> [ 17.219881] <TASK>
> [ 17.219882] ? __die_body.cold+0x19/0x1e
> [ 17.219885] ? page_fault_oops+0xa8/0x230
> [ 17.219889] ? search_module_extables+0x4f/0x90
> [ 17.219891] ? fixup_exception+0x36/0x2f0
> [ 17.219894] ? exc_page_fault+0x88/0x1b0
> [ 17.219897] ? asm_exc_page_fault+0x22/0x30
> [ 17.219900] ? dma_get_required_mask+0x11/0x50
This is not in the radeon driver but the DMA code. I'd say it's at [1],
as get_required_mask is 160 bytes within struct drm_map_ops. The call to
get_arch_dma_ops() probably returns NULL.
Best regards
Thomas
[1] https://elixir.bootlin.com/linux/v6.11/source/kernel/dma/mapping.c#L523
[2]
https://elixir.bootlin.com/linux/v6.11/source/include/linux/dma-map-ops.h#L98
> [ 17.219902] dma_addressing_limited+0x6c/0xb0
> [ 17.219905] radeon_ttm_init+0x3f/0x210 [radeon]
> [ 17.219977] cayman_init+0x97/0x290 [radeon]
> [ 17.220057] radeon_device_init+0x5e9/0xb40 [radeon]
> [ 17.220115] radeon_driver_load_kms+0xb0/0x260 [radeon]
> [ 17.220174] radeon_pci_probe+0xff/0x170 [radeon]
> [ 17.220231] pci_device_probe+0xbe/0x1a0
> [ 17.220234] really_probe+0xde/0x350
> [ 17.220237] ? pm_runtime_barrier+0x61/0xb0
> [ 17.220240] ? __pfx___driver_attach+0x10/0x10
> [ 17.220242] __driver_probe_device+0x78/0x110
> [ 17.220245] driver_probe_device+0x2d/0xc0
> [ 17.220247] __driver_attach+0xc9/0x1c0
> [ 17.220249] bus_for_each_dev+0x6a/0xb0
> [ 17.220251] ? migrate_enable+0xbf/0xf0
> [ 17.220254] bus_add_driver+0x139/0x220
> [ 17.220256] driver_register+0x6e/0xc0
> [ 17.220258] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
> [ 17.220315] do_one_initcall+0x42/0x210
> [ 17.220318] ? __kmalloc_cache_noprof+0x89/0x230
> [ 17.220321] do_init_module+0x60/0x210
> [ 17.220324] init_module_from_file+0x89/0xc0
> [ 17.220326] __x64_sys_finit_module+0x142/0x390
> [ 17.220329] do_syscall_64+0x47/0x110
> [ 17.220331] entry_SYSCALL_64_after_hwframe+0x76/0x7e
> [ 17.220334] RIP: 0033:0x7f59a0625279
> [ 17.220336] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64 89 01 48
> [ 17.220337] RSP: 002b:00007ffd15ee7df8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
> [ 17.220339] RAX: ffffffffffffffda RBX: 00005578ae660840 RCX: 00007f59a0625279
> [ 17.220340] RDX: 0000000000000000 RSI: 00005578ae677fc0 RDI: 0000000000000011
> [ 17.220341] RBP: 0000000000000000 R08: 00007f59a06fcb20 R09: 00005578ae640550
> [ 17.220342] R10: 0000000000000040 R11: 0000000000000246 R12: 00005578ae677fc0
> [ 17.220342] R13: 0000000000020000 R14: 00005578ae651750 R15: 0000000000000000
> [ 17.220344] </TASK>
> [ 17.220345] Modules linked in: radeon(+) snd_hda_codec_hdmi snd_seq_midi snd_seq_midi_event snd_seq snd_hda_intel snd_intel_dspcfg snd_emu10k1 snd_hda_codec drm_ttm_helper ttm snd_util_mem drm_suballoc_helper snd_ac97_codec snd_hda_core drm_display_helper ac97_bus snd_rawmidi snd_hwdep snd_seq_device snd_pcm drm_kms_helper edac_mce_amd sha512_ssse3 sha512_generic k10temp sha256_ssse3 sha1_ssse3 drm aesni_intel snd_timer gf128mul crypto_simd cryptd acpi_cpufreq evdev pcspkr serio_raw emu10k1_gp gameport at24 regmap_i2c i2c_algo_bit snd video soundcore wmi button sp5100_tco ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage hid_generic usbhid hid sg sr_mod sd_mod cdrom ata_generic firewire_ohci crc32_pclmul crc32c_intel firewire_core crc_itu_t pata_atiixp i2c_piix4 i2c_smbus ahci r8169 libahci xhci_pci ohci_pci realtek libata mdio_devres ehci_pci ohci_hcd xhci_hcd scsi_mod ehci_hcd scsi_common usbcore libphy usb_common
> [ 17.220388] CR2: 00000000000000a0
> [ 17.220390] ---[ end trace 0000000000000000 ]---
>
> Happy to provide additional information and run tests.
>
> Regards,
>
> Arthur Marsh.
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: radeon ARUBA NULL pointer dereference
2024-09-24 12:20 ` radeon ARUBA NULL pointer dereference Thomas Zimmermann
@ 2024-09-24 12:42 ` Thomas Zimmermann
2024-09-24 14:22 ` Alex Deucher
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Zimmermann @ 2024-09-24 12:42 UTC (permalink / raw)
To: Arthur Marsh
Cc: Xinhui.Pan, airlied, alexander.deucher, amd-gfx, christian.koenig,
daniel, dri-devel, linux-kernel, wuhoipok, iommu,
the arch/x86 maintainers
Am 24.09.24 um 14:20 schrieb Thomas Zimmermann:
> (cc: DMA and x86 folks)
>
> Hi
>
> Am 24.09.24 um 04:08 schrieb Arthur Marsh:
>> Using current Linus git head kernel, I was able to save the dmesg
>> output:
>>
>> [ 17.218724] [drm] radeon kernel modesetting enabled.
>> [ 17.218778] radeon 0000:00:01.0: vgaarb: deactivate vga console
>> [ 17.219509] Console: switching to colour dummy device 80x25
>> [ 17.219700] [drm] initializing kernel modesetting (ARUBA
>> 0x1002:0x990C 0x1002:0x0123 0x00).
>> [ 17.219773] ATOM BIOS: 113
>> [ 17.219838] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 -
>> 0x000000002FFFFFFF (768M used)
>> [ 17.219841] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 -
>> 0x000000006FFFFFFF
>> [ 17.219844] [drm] Detected VRAM RAM=768M, BAR=256M
>> [ 17.219845] [drm] RAM width 64bits DDR
>> [ 17.219851] BUG: kernel NULL pointer dereference, address:
>> 00000000000000a0
>
> This is 160 bytes behind NULL, which indicates a field within a struct.
>
>> [ 17.219852] #PF: supervisor read access in kernel mode
>> [ 17.219853] #PF: error_code(0x0000) - not-present page
>> [ 17.219854] PGD 0 P4D 0
>> [ 17.219856] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
>> [ 17.219858] CPU: 0 UID: 0 PID: 451 Comm: udevd Not tainted 6.11.0+
>> #6121
>> [ 17.219860] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
>> [ 17.219862] RIP: 0010:dma_get_required_mask+0x11/0x50
>> [ 17.219868] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
>> 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 68 02 00 00 48 85
>> c0 74 11 <48> 8b 80 a0 00 00 00 48 85 c0 74 1f e9 ee ed 94 00 f6 87
>> 2c 03 00
>> [ 17.219870] RSP: 0018:ffffa54bc13a7b00 EFLAGS: 00010202
>> [ 17.219871] RAX: 0000000000000000 RBX: 000000ffffffffff RCX:
>> 0000000000000000
>> [ 17.219872] RDX: 0000000000000000 RSI: 0000000000000027 RDI:
>> ffff976f44e720c8
>> [ 17.219873] RBP: ffff976f44e720c8 R08: 00000000ffffefff R09:
>> ffffffffab2aab08
>> [ 17.219874] R10: 00000000fffff000 R11: 0000000000000002 R12:
>> 0000000000000000
>> [ 17.219875] R13: ffff976f48a4aa30 R14: 0000000000000000 R15:
>> 0000000000000028
>> [ 17.219876] FS: 00007f59a070d840(0000) GS:ffff97726f800000(0000)
>> knlGS:0000000000000000
>> [ 17.219878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 17.219879] CR2: 00000000000000a0 CR3: 00000001053b4000 CR4:
>> 00000000000406f0
>> [ 17.219880] Call Trace:
>> [ 17.219881] <TASK>
>> [ 17.219882] ? __die_body.cold+0x19/0x1e
>> [ 17.219885] ? page_fault_oops+0xa8/0x230
>> [ 17.219889] ? search_module_extables+0x4f/0x90
>> [ 17.219891] ? fixup_exception+0x36/0x2f0
>> [ 17.219894] ? exc_page_fault+0x88/0x1b0
>> [ 17.219897] ? asm_exc_page_fault+0x22/0x30
>> [ 17.219900] ? dma_get_required_mask+0x11/0x50
>
> This is not in the radeon driver but the DMA code. I'd say it's at
> [1], as get_required_mask is 160 bytes within struct drm_map_ops. The
> call to get_arch_dma_ops() probably returns NULL.
And indeed, when I added
pr_warn("dev dma ops: 0x%p\n", pdev->dev.dma_ops);
pr_warn("arch dma ops: 0x%p\n", get_arch_dma_ops());
to radeon_pci_probe(), I got
[ 22.325657] dev dma ops: 0x0000000000000000
[ 22.342921] arch dma ops: 0x0000000000000000
as a result.
Best regards
Thomas
>
> Best regards
> Thomas
>
> [1]
> https://elixir.bootlin.com/linux/v6.11/source/kernel/dma/mapping.c#L523
> [2]
> https://elixir.bootlin.com/linux/v6.11/source/include/linux/dma-map-ops.h#L98
>
>> [ 17.219902] dma_addressing_limited+0x6c/0xb0
>> [ 17.219905] radeon_ttm_init+0x3f/0x210 [radeon]
>> [ 17.219977] cayman_init+0x97/0x290 [radeon]
>> [ 17.220057] radeon_device_init+0x5e9/0xb40 [radeon]
>> [ 17.220115] radeon_driver_load_kms+0xb0/0x260 [radeon]
>> [ 17.220174] radeon_pci_probe+0xff/0x170 [radeon]
>> [ 17.220231] pci_device_probe+0xbe/0x1a0
>> [ 17.220234] really_probe+0xde/0x350
>> [ 17.220237] ? pm_runtime_barrier+0x61/0xb0
>> [ 17.220240] ? __pfx___driver_attach+0x10/0x10
>> [ 17.220242] __driver_probe_device+0x78/0x110
>> [ 17.220245] driver_probe_device+0x2d/0xc0
>> [ 17.220247] __driver_attach+0xc9/0x1c0
>> [ 17.220249] bus_for_each_dev+0x6a/0xb0
>> [ 17.220251] ? migrate_enable+0xbf/0xf0
>> [ 17.220254] bus_add_driver+0x139/0x220
>> [ 17.220256] driver_register+0x6e/0xc0
>> [ 17.220258] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
>> [ 17.220315] do_one_initcall+0x42/0x210
>> [ 17.220318] ? __kmalloc_cache_noprof+0x89/0x230
>> [ 17.220321] do_init_module+0x60/0x210
>> [ 17.220324] init_module_from_file+0x89/0xc0
>> [ 17.220326] __x64_sys_finit_module+0x142/0x390
>> [ 17.220329] do_syscall_64+0x47/0x110
>> [ 17.220331] entry_SYSCALL_64_after_hwframe+0x76/0x7e
>> [ 17.220334] RIP: 0033:0x7f59a0625279
>> [ 17.220336] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64
>> 89 01 48
>> [ 17.220337] RSP: 002b:00007ffd15ee7df8 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000139
>> [ 17.220339] RAX: ffffffffffffffda RBX: 00005578ae660840 RCX:
>> 00007f59a0625279
>> [ 17.220340] RDX: 0000000000000000 RSI: 00005578ae677fc0 RDI:
>> 0000000000000011
>> [ 17.220341] RBP: 0000000000000000 R08: 00007f59a06fcb20 R09:
>> 00005578ae640550
>> [ 17.220342] R10: 0000000000000040 R11: 0000000000000246 R12:
>> 00005578ae677fc0
>> [ 17.220342] R13: 0000000000020000 R14: 00005578ae651750 R15:
>> 0000000000000000
>> [ 17.220344] </TASK>
>> [ 17.220345] Modules linked in: radeon(+) snd_hda_codec_hdmi
>> snd_seq_midi snd_seq_midi_event snd_seq snd_hda_intel
>> snd_intel_dspcfg snd_emu10k1 snd_hda_codec drm_ttm_helper ttm
>> snd_util_mem drm_suballoc_helper snd_ac97_codec snd_hda_core
>> drm_display_helper ac97_bus snd_rawmidi snd_hwdep snd_seq_device
>> snd_pcm drm_kms_helper edac_mce_amd sha512_ssse3 sha512_generic
>> k10temp sha256_ssse3 sha1_ssse3 drm aesni_intel snd_timer gf128mul
>> crypto_simd cryptd acpi_cpufreq evdev pcspkr serio_raw emu10k1_gp
>> gameport at24 regmap_i2c i2c_algo_bit snd video soundcore wmi button
>> sp5100_tco ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage
>> hid_generic usbhid hid sg sr_mod sd_mod cdrom ata_generic
>> firewire_ohci crc32_pclmul crc32c_intel firewire_core crc_itu_t
>> pata_atiixp i2c_piix4 i2c_smbus ahci r8169 libahci xhci_pci ohci_pci
>> realtek libata mdio_devres ehci_pci ohci_hcd xhci_hcd scsi_mod
>> ehci_hcd scsi_common usbcore libphy usb_common
>> [ 17.220388] CR2: 00000000000000a0
>> [ 17.220390] ---[ end trace 0000000000000000 ]---
>>
>> Happy to provide additional information and run tests.
>>
>> Regards,
>>
>> Arthur Marsh.
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: radeon ARUBA NULL pointer dereference
2024-09-24 12:42 ` Thomas Zimmermann
@ 2024-09-24 14:22 ` Alex Deucher
2024-09-24 19:30 ` Ewan Milne
2024-09-25 0:22 ` NULL pointer dereference after ib test on ring 7 succeeded Arthur Marsh
0 siblings, 2 replies; 10+ messages in thread
From: Alex Deucher @ 2024-09-24 14:22 UTC (permalink / raw)
To: Thomas Zimmermann
Cc: Arthur Marsh, Xinhui.Pan, airlied, alexander.deucher, amd-gfx,
christian.koenig, daniel, dri-devel, linux-kernel, wuhoipok,
iommu, the arch/x86 maintainers
On Tue, Sep 24, 2024 at 8:43 AM Thomas Zimmermann <tzimmermann@suse.de> wrote:
>
>
>
> Am 24.09.24 um 14:20 schrieb Thomas Zimmermann:
> > (cc: DMA and x86 folks)
> >
> > Hi
> >
> > Am 24.09.24 um 04:08 schrieb Arthur Marsh:
> >> Using current Linus git head kernel, I was able to save the dmesg
> >> output:
> >>
> >> [ 17.218724] [drm] radeon kernel modesetting enabled.
> >> [ 17.218778] radeon 0000:00:01.0: vgaarb: deactivate vga console
> >> [ 17.219509] Console: switching to colour dummy device 80x25
> >> [ 17.219700] [drm] initializing kernel modesetting (ARUBA
> >> 0x1002:0x990C 0x1002:0x0123 0x00).
> >> [ 17.219773] ATOM BIOS: 113
> >> [ 17.219838] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 -
> >> 0x000000002FFFFFFF (768M used)
> >> [ 17.219841] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 -
> >> 0x000000006FFFFFFF
> >> [ 17.219844] [drm] Detected VRAM RAM=768M, BAR=256M
> >> [ 17.219845] [drm] RAM width 64bits DDR
> >> [ 17.219851] BUG: kernel NULL pointer dereference, address:
> >> 00000000000000a0
> >
> > This is 160 bytes behind NULL, which indicates a field within a struct.
> >
> >> [ 17.219852] #PF: supervisor read access in kernel mode
> >> [ 17.219853] #PF: error_code(0x0000) - not-present page
> >> [ 17.219854] PGD 0 P4D 0
> >> [ 17.219856] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
> >> [ 17.219858] CPU: 0 UID: 0 PID: 451 Comm: udevd Not tainted 6.11.0+
> >> #6121
> >> [ 17.219860] Hardware name: Gigabyte Technology Co., Ltd. To be
> >> filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
> >> [ 17.219862] RIP: 0010:dma_get_required_mask+0x11/0x50
> >> [ 17.219868] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
> >> 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 68 02 00 00 48 85
> >> c0 74 11 <48> 8b 80 a0 00 00 00 48 85 c0 74 1f e9 ee ed 94 00 f6 87
> >> 2c 03 00
> >> [ 17.219870] RSP: 0018:ffffa54bc13a7b00 EFLAGS: 00010202
> >> [ 17.219871] RAX: 0000000000000000 RBX: 000000ffffffffff RCX:
> >> 0000000000000000
> >> [ 17.219872] RDX: 0000000000000000 RSI: 0000000000000027 RDI:
> >> ffff976f44e720c8
> >> [ 17.219873] RBP: ffff976f44e720c8 R08: 00000000ffffefff R09:
> >> ffffffffab2aab08
> >> [ 17.219874] R10: 00000000fffff000 R11: 0000000000000002 R12:
> >> 0000000000000000
> >> [ 17.219875] R13: ffff976f48a4aa30 R14: 0000000000000000 R15:
> >> 0000000000000028
> >> [ 17.219876] FS: 00007f59a070d840(0000) GS:ffff97726f800000(0000)
> >> knlGS:0000000000000000
> >> [ 17.219878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> >> [ 17.219879] CR2: 00000000000000a0 CR3: 00000001053b4000 CR4:
> >> 00000000000406f0
> >> [ 17.219880] Call Trace:
> >> [ 17.219881] <TASK>
> >> [ 17.219882] ? __die_body.cold+0x19/0x1e
> >> [ 17.219885] ? page_fault_oops+0xa8/0x230
> >> [ 17.219889] ? search_module_extables+0x4f/0x90
> >> [ 17.219891] ? fixup_exception+0x36/0x2f0
> >> [ 17.219894] ? exc_page_fault+0x88/0x1b0
> >> [ 17.219897] ? asm_exc_page_fault+0x22/0x30
> >> [ 17.219900] ? dma_get_required_mask+0x11/0x50
Also reported here:
https://gitlab.freedesktop.org/drm/amd/-/issues/3648
Alex
> >
> > This is not in the radeon driver but the DMA code. I'd say it's at
> > [1], as get_required_mask is 160 bytes within struct drm_map_ops. The
> > call to get_arch_dma_ops() probably returns NULL.
>
> And indeed, when I added
>
> pr_warn("dev dma ops: 0x%p\n", pdev->dev.dma_ops);
> pr_warn("arch dma ops: 0x%p\n", get_arch_dma_ops());
>
> to radeon_pci_probe(), I got
>
> [ 22.325657] dev dma ops: 0x0000000000000000
> [ 22.342921] arch dma ops: 0x0000000000000000
>
> as a result.
>
> Best regards
> Thomas
>
> >
> > Best regards
> > Thomas
> >
> > [1]
> > https://elixir.bootlin.com/linux/v6.11/source/kernel/dma/mapping.c#L523
> > [2]
> > https://elixir.bootlin.com/linux/v6.11/source/include/linux/dma-map-ops.h#L98
> >
> >> [ 17.219902] dma_addressing_limited+0x6c/0xb0
> >> [ 17.219905] radeon_ttm_init+0x3f/0x210 [radeon]
> >> [ 17.219977] cayman_init+0x97/0x290 [radeon]
> >> [ 17.220057] radeon_device_init+0x5e9/0xb40 [radeon]
> >> [ 17.220115] radeon_driver_load_kms+0xb0/0x260 [radeon]
> >> [ 17.220174] radeon_pci_probe+0xff/0x170 [radeon]
> >> [ 17.220231] pci_device_probe+0xbe/0x1a0
> >> [ 17.220234] really_probe+0xde/0x350
> >> [ 17.220237] ? pm_runtime_barrier+0x61/0xb0
> >> [ 17.220240] ? __pfx___driver_attach+0x10/0x10
> >> [ 17.220242] __driver_probe_device+0x78/0x110
> >> [ 17.220245] driver_probe_device+0x2d/0xc0
> >> [ 17.220247] __driver_attach+0xc9/0x1c0
> >> [ 17.220249] bus_for_each_dev+0x6a/0xb0
> >> [ 17.220251] ? migrate_enable+0xbf/0xf0
> >> [ 17.220254] bus_add_driver+0x139/0x220
> >> [ 17.220256] driver_register+0x6e/0xc0
> >> [ 17.220258] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
> >> [ 17.220315] do_one_initcall+0x42/0x210
> >> [ 17.220318] ? __kmalloc_cache_noprof+0x89/0x230
> >> [ 17.220321] do_init_module+0x60/0x210
> >> [ 17.220324] init_module_from_file+0x89/0xc0
> >> [ 17.220326] __x64_sys_finit_module+0x142/0x390
> >> [ 17.220329] do_syscall_64+0x47/0x110
> >> [ 17.220331] entry_SYSCALL_64_after_hwframe+0x76/0x7e
> >> [ 17.220334] RIP: 0033:0x7f59a0625279
> >> [ 17.220336] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64
> >> 89 01 48
> >> [ 17.220337] RSP: 002b:00007ffd15ee7df8 EFLAGS: 00000246 ORIG_RAX:
> >> 0000000000000139
> >> [ 17.220339] RAX: ffffffffffffffda RBX: 00005578ae660840 RCX:
> >> 00007f59a0625279
> >> [ 17.220340] RDX: 0000000000000000 RSI: 00005578ae677fc0 RDI:
> >> 0000000000000011
> >> [ 17.220341] RBP: 0000000000000000 R08: 00007f59a06fcb20 R09:
> >> 00005578ae640550
> >> [ 17.220342] R10: 0000000000000040 R11: 0000000000000246 R12:
> >> 00005578ae677fc0
> >> [ 17.220342] R13: 0000000000020000 R14: 00005578ae651750 R15:
> >> 0000000000000000
> >> [ 17.220344] </TASK>
> >> [ 17.220345] Modules linked in: radeon(+) snd_hda_codec_hdmi
> >> snd_seq_midi snd_seq_midi_event snd_seq snd_hda_intel
> >> snd_intel_dspcfg snd_emu10k1 snd_hda_codec drm_ttm_helper ttm
> >> snd_util_mem drm_suballoc_helper snd_ac97_codec snd_hda_core
> >> drm_display_helper ac97_bus snd_rawmidi snd_hwdep snd_seq_device
> >> snd_pcm drm_kms_helper edac_mce_amd sha512_ssse3 sha512_generic
> >> k10temp sha256_ssse3 sha1_ssse3 drm aesni_intel snd_timer gf128mul
> >> crypto_simd cryptd acpi_cpufreq evdev pcspkr serio_raw emu10k1_gp
> >> gameport at24 regmap_i2c i2c_algo_bit snd video soundcore wmi button
> >> sp5100_tco ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage
> >> hid_generic usbhid hid sg sr_mod sd_mod cdrom ata_generic
> >> firewire_ohci crc32_pclmul crc32c_intel firewire_core crc_itu_t
> >> pata_atiixp i2c_piix4 i2c_smbus ahci r8169 libahci xhci_pci ohci_pci
> >> realtek libata mdio_devres ehci_pci ohci_hcd xhci_hcd scsi_mod
> >> ehci_hcd scsi_common usbcore libphy usb_common
> >> [ 17.220388] CR2: 00000000000000a0
> >> [ 17.220390] ---[ end trace 0000000000000000 ]---
> >>
> >> Happy to provide additional information and run tests.
> >>
> >> Regards,
> >>
> >> Arthur Marsh.
> >
>
> --
> --
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Frankenstrasse 146, 90461 Nuernberg, Germany
> GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
> HRB 36809 (AG Nuernberg)
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: radeon ARUBA NULL pointer dereference
2024-09-24 14:22 ` Alex Deucher
@ 2024-09-24 19:30 ` Ewan Milne
2024-09-25 18:13 ` Ewan Milne
2024-09-25 0:22 ` NULL pointer dereference after ib test on ring 7 succeeded Arthur Marsh
1 sibling, 1 reply; 10+ messages in thread
From: Ewan Milne @ 2024-09-24 19:30 UTC (permalink / raw)
To: Alex Deucher
Cc: Thomas Zimmermann, Arthur Marsh, Xinhui.Pan, airlied,
alexander.deucher, amd-gfx, christian.koenig, daniel, dri-devel,
linux-kernel, wuhoipok, iommu, the arch/x86 maintainers,
Nilesh Javali, Martin K. Petersen
I think we are seeing a similar problem w/qla2xxx panicing at boot:
commit 1868f9d0260e9afaf7c6436d14923ae12eaea465 (HEAD -> master,
origin/master, origin/HEAD)
Merge: 056f8c437dc3 96319dacaf15
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri Sep 20 19:34:00 2024 -0700
Merge tag 'for-linux-6.12-ofs1' of
git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
[ 3.376687] qla2xxx [0000:00:00.0]-0005: : QLogic Fibre Channel HBA
Driver: 10.02.09.300-k.
[ 3.385285] qla2xxx [0000:c4:00.0]-011c: : MSI-X vector count: 16.
[ 3.391502] qla2xxx [0000:c4:00.0]-001d: : Found an ISP2261 irq 121
iobase 0x000000003b0c542c.
[ 3.400118] BUG: kernel NULL pointer dereference, address: 00000000000000a0
[ 3.407075] #PF: supervisor read access in kernel mode
[ 3.412215] #PF: error_code(0x0000) - not-present page
[ 3.417356] PGD 0 P4D 0
[ 3.419896] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 3.424776] CPU: 0 UID: 0 PID: 413 Comm: kworker/0:2 Not tainted 6.11.0+ #1
[ 3.431731] Hardware name: Dell Inc. PowerEdge R6515/04F3CJ, BIOS
2.13.3 09/12/2023
[ 3.439386] Workqueue: events work_for_cpu_fn
[ 3.443744] RIP: 0010:dma_get_required_mask+0x11/0x50
[ 3.448796] Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 38 02 00 00 48 85
c0 74 12 <48> 8b 80 a0 00 00 00 48 85 c0 74 20 e9 fe f1 b7 00 cc 48 8b
05 9e
[ 3.467542] RSP: 0018:ffffb05741007d80 EFLAGS: 00010202
[ 3.472769] RAX: 0000000000000000 RBX: 0000000000000055 RCX: ffff9f8601f92088
[ 3.479901] RDX: ffffb05740e07000 RSI: ffffffffffffffff RDI: ffff9f8601f920c8
[ 3.487032] RBP: ffff9f861b3ec000 R08: 0000000000000000 R09: ffffb05741007b10
[ 3.494165] R10: ffffb05741007b08 R11: ffffffff831e15c8 R12: ffff9f8601f92000
[ 3.501299] R13: ffff9f861b3ec4a8 R14: 0000000000001000 R15: 0000000000002000
[ 3.508432] FS: 0000000000000000(0000) GS:ffff9f896f200000(0000)
knlGS:0000000000000000
[ 3.516517] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.522261] CR2: 00000000000000a0 CR3: 000000011d930000 CR4: 0000000000350ef0
[ 3.529394] Call Trace:
[ 3.531848] <TASK>
[ 3.533954] ? __die+0x20/0x70
[ 3.537012] ? page_fault_oops+0x75/0x170
[ 3.541028] ? exc_page_fault+0x64/0x140
[ 3.544951] ? asm_exc_page_fault+0x22/0x30
[ 3.549141] ? dma_get_required_mask+0x11/0x50
[ 3.553584] qla2x00_probe_one+0x12a1/0x1cb0 [qla2xxx]
[ 3.558758] ? srso_return_thunk+0x5/0x5f
[ 3.562770] ? __update_idle_core+0x5b/0xb0
[ 3.566958] local_pci_probe+0x46/0xa0
[ 3.570711] work_for_cpu_fn+0x16/0x20
[ 3.574459] process_one_work+0x17c/0x390
[ 3.578474] worker_thread+0x239/0x340
[ 3.582227] ? __pfx_worker_thread+0x10/0x10
[ 3.586497] kthread+0xcf/0x100
[ 3.589643] ? __pfx_kthread+0x10/0x10
[ 3.593398] ret_from_fork+0x30/0x50
[ 3.596975] ? __pfx_kthread+0x10/0x10
[ 3.600728] ret_from_fork_asm+0x1a/0x30
[ 3.604660] </TASK>
[ 3.606846] Modules linked in: qla2xxx(+) sd_mod sg nvme_fc
nvme_fabrics ahci(+) nvme_keyring libahci crct10dif_pclmul
crc32_pclmul ccp nvme_core crc32c_intel libata nvme_auth
ghash_clmulni_intel megaraid_sas tg3 scsi_transport_fc sp5100_tco wmi
dm_mirror dm_region_hash dm_log dm_mod
[ 3.631945] CR2: 00000000000000a0
[ 3.635265] ---[ end trace 0000000000000000 ]---
[ 3.728765] RIP: 0010:dma_get_required_mask+0x11/0x50
[ 3.733828] Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 38 02 00 00 48 85
c0 74 12 <48> 8b 80 a0 00 00 00 48 85 c0 74 20 e9 fe f1 b7 00 cc 48 8b
05 9e
[ 3.752572] RSP: 0018:ffffb05741007d80 EFLAGS: 00010202
[ 3.757798] RAX: 0000000000000000 RBX: 0000000000000055 RCX: ffff9f8601f92088
[ 3.764930] RDX: ffffb05740e07000 RSI: ffffffffffffffff RDI: ffff9f8601f920c8
[ 3.772062] RBP: ffff9f861b3ec000 R08: 0000000000000000 R09: ffffb05741007b10
[ 3.779197] R10: ffffb05741007b08 R11: ffffffff831e15c8 R12: ffff9f8601f92000
[ 3.786328] R13: ffff9f861b3ec4a8 R14: 0000000000001000 R15: 0000000000002000
[ 3.793460] FS: 0000000000000000(0000) GS:ffff9f896f200000(0000)
knlGS:0000000000000000
[ 3.801548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.807292] CR2: 00000000000000a0 CR3: 000000011d930000 CR4: 0000000000350ef0
[ 3.814425] Kernel panic - not syncing: Fatal exception
[ 3.821267] Kernel Offset: 0x600000 from 0xffffffff81000000
(relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 3.890453] pstore: backend (erst) writing error (-28)
[ 3.895598] ---[ end Kernel panic - not syncing: Fatal exception ]---
On Tue, Sep 24, 2024 at 10:23 AM Alex Deucher <alexdeucher@gmail.com> wrote:
>
> On Tue, Sep 24, 2024 at 8:43 AM Thomas Zimmermann <tzimmermann@suse.de> wrote:
> >
> >
> >
> > Am 24.09.24 um 14:20 schrieb Thomas Zimmermann:
> > > (cc: DMA and x86 folks)
> > >
> > > Hi
> > >
> > > Am 24.09.24 um 04:08 schrieb Arthur Marsh:
> > >> Using current Linus git head kernel, I was able to save the dmesg
> > >> output:
> > >>
> > >> [ 17.218724] [drm] radeon kernel modesetting enabled.
> > >> [ 17.218778] radeon 0000:00:01.0: vgaarb: deactivate vga console
> > >> [ 17.219509] Console: switching to colour dummy device 80x25
> > >> [ 17.219700] [drm] initializing kernel modesetting (ARUBA
> > >> 0x1002:0x990C 0x1002:0x0123 0x00).
> > >> [ 17.219773] ATOM BIOS: 113
> > >> [ 17.219838] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 -
> > >> 0x000000002FFFFFFF (768M used)
> > >> [ 17.219841] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 -
> > >> 0x000000006FFFFFFF
> > >> [ 17.219844] [drm] Detected VRAM RAM=768M, BAR=256M
> > >> [ 17.219845] [drm] RAM width 64bits DDR
> > >> [ 17.219851] BUG: kernel NULL pointer dereference, address:
> > >> 00000000000000a0
> > >
> > > This is 160 bytes behind NULL, which indicates a field within a struct.
> > >
> > >> [ 17.219852] #PF: supervisor read access in kernel mode
> > >> [ 17.219853] #PF: error_code(0x0000) - not-present page
> > >> [ 17.219854] PGD 0 P4D 0
> > >> [ 17.219856] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
> > >> [ 17.219858] CPU: 0 UID: 0 PID: 451 Comm: udevd Not tainted 6.11.0+
> > >> #6121
> > >> [ 17.219860] Hardware name: Gigabyte Technology Co., Ltd. To be
> > >> filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
> > >> [ 17.219862] RIP: 0010:dma_get_required_mask+0x11/0x50
> > >> [ 17.219868] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
> > >> 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 8b 87 68 02 00 00 48 85
> > >> c0 74 11 <48> 8b 80 a0 00 00 00 48 85 c0 74 1f e9 ee ed 94 00 f6 87
> > >> 2c 03 00
> > >> [ 17.219870] RSP: 0018:ffffa54bc13a7b00 EFLAGS: 00010202
> > >> [ 17.219871] RAX: 0000000000000000 RBX: 000000ffffffffff RCX:
> > >> 0000000000000000
> > >> [ 17.219872] RDX: 0000000000000000 RSI: 0000000000000027 RDI:
> > >> ffff976f44e720c8
> > >> [ 17.219873] RBP: ffff976f44e720c8 R08: 00000000ffffefff R09:
> > >> ffffffffab2aab08
> > >> [ 17.219874] R10: 00000000fffff000 R11: 0000000000000002 R12:
> > >> 0000000000000000
> > >> [ 17.219875] R13: ffff976f48a4aa30 R14: 0000000000000000 R15:
> > >> 0000000000000028
> > >> [ 17.219876] FS: 00007f59a070d840(0000) GS:ffff97726f800000(0000)
> > >> knlGS:0000000000000000
> > >> [ 17.219878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > >> [ 17.219879] CR2: 00000000000000a0 CR3: 00000001053b4000 CR4:
> > >> 00000000000406f0
> > >> [ 17.219880] Call Trace:
> > >> [ 17.219881] <TASK>
> > >> [ 17.219882] ? __die_body.cold+0x19/0x1e
> > >> [ 17.219885] ? page_fault_oops+0xa8/0x230
> > >> [ 17.219889] ? search_module_extables+0x4f/0x90
> > >> [ 17.219891] ? fixup_exception+0x36/0x2f0
> > >> [ 17.219894] ? exc_page_fault+0x88/0x1b0
> > >> [ 17.219897] ? asm_exc_page_fault+0x22/0x30
> > >> [ 17.219900] ? dma_get_required_mask+0x11/0x50
>
> Also reported here:
> https://gitlab.freedesktop.org/drm/amd/-/issues/3648
>
> Alex
>
> > >
> > > This is not in the radeon driver but the DMA code. I'd say it's at
> > > [1], as get_required_mask is 160 bytes within struct drm_map_ops. The
> > > call to get_arch_dma_ops() probably returns NULL.
> >
> > And indeed, when I added
> >
> > pr_warn("dev dma ops: 0x%p\n", pdev->dev.dma_ops);
> > pr_warn("arch dma ops: 0x%p\n", get_arch_dma_ops());
> >
> > to radeon_pci_probe(), I got
> >
> > [ 22.325657] dev dma ops: 0x0000000000000000
> > [ 22.342921] arch dma ops: 0x0000000000000000
> >
> > as a result.
> >
> > Best regards
> > Thomas
> >
> > >
> > > Best regards
> > > Thomas
> > >
> > > [1]
> > > https://elixir.bootlin.com/linux/v6.11/source/kernel/dma/mapping.c#L523
> > > [2]
> > > https://elixir.bootlin.com/linux/v6.11/source/include/linux/dma-map-ops.h#L98
> > >
> > >> [ 17.219902] dma_addressing_limited+0x6c/0xb0
> > >> [ 17.219905] radeon_ttm_init+0x3f/0x210 [radeon]
> > >> [ 17.219977] cayman_init+0x97/0x290 [radeon]
> > >> [ 17.220057] radeon_device_init+0x5e9/0xb40 [radeon]
> > >> [ 17.220115] radeon_driver_load_kms+0xb0/0x260 [radeon]
> > >> [ 17.220174] radeon_pci_probe+0xff/0x170 [radeon]
> > >> [ 17.220231] pci_device_probe+0xbe/0x1a0
> > >> [ 17.220234] really_probe+0xde/0x350
> > >> [ 17.220237] ? pm_runtime_barrier+0x61/0xb0
> > >> [ 17.220240] ? __pfx___driver_attach+0x10/0x10
> > >> [ 17.220242] __driver_probe_device+0x78/0x110
> > >> [ 17.220245] driver_probe_device+0x2d/0xc0
> > >> [ 17.220247] __driver_attach+0xc9/0x1c0
> > >> [ 17.220249] bus_for_each_dev+0x6a/0xb0
> > >> [ 17.220251] ? migrate_enable+0xbf/0xf0
> > >> [ 17.220254] bus_add_driver+0x139/0x220
> > >> [ 17.220256] driver_register+0x6e/0xc0
> > >> [ 17.220258] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
> > >> [ 17.220315] do_one_initcall+0x42/0x210
> > >> [ 17.220318] ? __kmalloc_cache_noprof+0x89/0x230
> > >> [ 17.220321] do_init_module+0x60/0x210
> > >> [ 17.220324] init_module_from_file+0x89/0xc0
> > >> [ 17.220326] __x64_sys_finit_module+0x142/0x390
> > >> [ 17.220329] do_syscall_64+0x47/0x110
> > >> [ 17.220331] entry_SYSCALL_64_after_hwframe+0x76/0x7e
> > >> [ 17.220334] RIP: 0033:0x7f59a0625279
> > >> [ 17.220336] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64
> > >> 89 01 48
> > >> [ 17.220337] RSP: 002b:00007ffd15ee7df8 EFLAGS: 00000246 ORIG_RAX:
> > >> 0000000000000139
> > >> [ 17.220339] RAX: ffffffffffffffda RBX: 00005578ae660840 RCX:
> > >> 00007f59a0625279
> > >> [ 17.220340] RDX: 0000000000000000 RSI: 00005578ae677fc0 RDI:
> > >> 0000000000000011
> > >> [ 17.220341] RBP: 0000000000000000 R08: 00007f59a06fcb20 R09:
> > >> 00005578ae640550
> > >> [ 17.220342] R10: 0000000000000040 R11: 0000000000000246 R12:
> > >> 00005578ae677fc0
> > >> [ 17.220342] R13: 0000000000020000 R14: 00005578ae651750 R15:
> > >> 0000000000000000
> > >> [ 17.220344] </TASK>
> > >> [ 17.220345] Modules linked in: radeon(+) snd_hda_codec_hdmi
> > >> snd_seq_midi snd_seq_midi_event snd_seq snd_hda_intel
> > >> snd_intel_dspcfg snd_emu10k1 snd_hda_codec drm_ttm_helper ttm
> > >> snd_util_mem drm_suballoc_helper snd_ac97_codec snd_hda_core
> > >> drm_display_helper ac97_bus snd_rawmidi snd_hwdep snd_seq_device
> > >> snd_pcm drm_kms_helper edac_mce_amd sha512_ssse3 sha512_generic
> > >> k10temp sha256_ssse3 sha1_ssse3 drm aesni_intel snd_timer gf128mul
> > >> crypto_simd cryptd acpi_cpufreq evdev pcspkr serio_raw emu10k1_gp
> > >> gameport at24 regmap_i2c i2c_algo_bit snd video soundcore wmi button
> > >> sp5100_tco ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage
> > >> hid_generic usbhid hid sg sr_mod sd_mod cdrom ata_generic
> > >> firewire_ohci crc32_pclmul crc32c_intel firewire_core crc_itu_t
> > >> pata_atiixp i2c_piix4 i2c_smbus ahci r8169 libahci xhci_pci ohci_pci
> > >> realtek libata mdio_devres ehci_pci ohci_hcd xhci_hcd scsi_mod
> > >> ehci_hcd scsi_common usbcore libphy usb_common
> > >> [ 17.220388] CR2: 00000000000000a0
> > >> [ 17.220390] ---[ end trace 0000000000000000 ]---
> > >>
> > >> Happy to provide additional information and run tests.
> > >>
> > >> Regards,
> > >>
> > >> Arthur Marsh.
> > >
> >
> > --
> > --
> > Thomas Zimmermann
> > Graphics Driver Developer
> > SUSE Software Solutions Germany GmbH
> > Frankenstrasse 146, 90461 Nuernberg, Germany
> > GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
> > HRB 36809 (AG Nuernberg)
> >
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* NULL pointer dereference after ib test on ring 7 succeeded
2024-09-24 14:22 ` Alex Deucher
2024-09-24 19:30 ` Ewan Milne
@ 2024-09-25 0:22 ` Arthur Marsh
2024-09-25 8:02 ` Thomas Zimmermann
1 sibling, 1 reply; 10+ messages in thread
From: Arthur Marsh @ 2024-09-25 0:22 UTC (permalink / raw)
To: alexdeucher
Cc: Xinhui.Pan, airlied, alexander.deucher, amd-gfx, arthur.marsh,
christian.koenig, daniel, dri-devel, iommu, linux-kernel,
tzimmermann, wuhoipok, x86
After rebuilding current Linus git head with:
dma-mapping: report unlimited DMA addressing in IOMMU DMA path
b348b6d17fd1d5d89b86db602f02bea54a754bd8
applied, the radeon module load gets further before hitting another
NULL pointer dereference:
[ 17.777472] [drm] radeon kernel modesetting enabled.
[ 17.777536] radeon 0000:00:01.0: vgaarb: deactivate vga console
[ 17.778276] Console: switching to colour dummy device 80x25
[ 17.778519] [drm] initializing kernel modesetting (ARUBA 0x1002:0x990C 0x1002:0x0123 0x00).
[ 17.778600] ATOM BIOS: 113
[ 17.778658] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
[ 17.778661] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
[ 17.778665] [drm] Detected VRAM RAM=768M, BAR=256M
[ 17.778665] [drm] RAM width 64bits DDR
[ 17.778764] [drm] radeon: 768M of VRAM memory ready
[ 17.778766] [drm] radeon: 1024M of GTT memory ready.
[ 17.778777] [drm] Loading ARUBA Microcode
[ 18.038084] [drm] Internal thermal controller without fan control
[ 18.038425] [drm] radeon: dpm initialized
[ 18.333508] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
[ 18.333548] [drm] GART: num cpu pages 262144, num gpu pages 262144
[ 18.353624] [drm] PCIE GART of 1024M enabled (table at 0x00000000001D6000).
[ 18.353755] radeon 0000:00:01.0: WB enabled
[ 18.353758] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000030000c00
[ 18.354136] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000075a18
[ 18.374206] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000030000c18
[ 18.374208] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000030000c1c
[ 18.374210] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000030000c04
[ 18.374212] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000030000c08
[ 18.374213] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000030000c0c
[ 18.374214] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000030000c10
[ 18.374469] radeon 0000:00:01.0: radeon: MSI limited to 32-bit
[ 18.374525] radeon 0000:00:01.0: radeon: using MSI.
[ 18.374604] [drm] radeon: irq initialized.
[ 18.392823] [drm] ring test on 0 succeeded in 3 usecs
[ 18.392831] [drm] ring test on 3 succeeded in 4 usecs
[ 18.392836] [drm] ring test on 4 succeeded in 3 usecs
[ 18.438526] [drm] ring test on 5 succeeded in 2 usecs
[ 18.458380] [drm] UVD initialized successfully.
[ 18.567616] [drm] ring test on 6 succeeded in 18 usecs
[ 18.567626] [drm] ring test on 7 succeeded in 3 usecs
[ 18.567627] [drm] VCE initialized successfully.
[ 18.567686] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops radeon_audio_component_bind_ops [radeon])
[ 18.567925] [drm] ib test on ring 0 succeeded in 0 usecs
[ 18.567968] [drm] ib test on ring 3 succeeded in 0 usecs
[ 18.568008] [drm] ib test on ring 4 succeeded in 0 usecs
[ 19.094527] [drm] ib test on ring 5 succeeded
[ 19.257713] mc: Linux media interface: v0.10
[ 19.638235] [drm] ib test on ring 6 succeeded
[ 20.017069] usb 1-3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
[ 20.048473] usb 1-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 20.048493] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[ 20.048497] usb 1-3: media controller created
[ 20.049487] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[ 20.150361] [drm] ib test on ring 7 succeeded
[ 20.150700] BUG: kernel NULL pointer dereference, address: 0000000000000050
[ 20.150702] #PF: supervisor read access in kernel mode
[ 20.150704] #PF: error_code(0x0000) - not-present page
[ 20.150705] PGD 0 P4D 0
[ 20.150707] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
[ 20.150710] CPU: 0 UID: 0 PID: 446 Comm: udevd Not tainted 6.11.0+ #6122
[ 20.150713] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
[ 20.150714] RIP: 0010:drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 20.150732] Code: a1 c0 48 85 f6 48 89 83 b8 00 00 00 74 1c 48 8d bb b4 03 00 00 ba 30 00 00 00 e8 52 e5 60 db 48 8d 7b 08 5b 5d e9 b7 ea 37 db <48> 8b 70 50 48 85 f6 75 db 48 8b 30 eb d6 48 8d ab 88 04 00 00 48
[ 20.150734] RSP: 0018:ffff9eb8013cb960 EFLAGS: 00010246
[ 20.150736] RAX: 0000000000000000 RBX: ffff8f1983bfc508 RCX: ffffffffc0bd1bc0
[ 20.150737] RDX: ffffffffc0a1de40 RSI: 0000000000000000 RDI: ffff8f1983bfc9f0
[ 20.150738] RBP: ffff8f1983bfc9f0 R08: ffff8f199ca70008 R09: 00000000c0c0c0c0
[ 20.150739] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8f199da9af50
[ 20.150740] R13: ffff8f199da9b092 R14: ffff8f199da9af2e R15: 0000000000000018
[ 20.150741] FS: 00007ff9b9e6a840(0000) GS:ffff8f1caf800000(0000) knlGS:0000000000000000
[ 20.150743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.150744] CR2: 0000000000000050 CR3: 00000001033e4000 CR4: 00000000000406f0
[ 20.150745] Call Trace:
[ 20.150747] <TASK>
[ 20.150748] ? __die_body.cold+0x19/0x1e
[ 20.150753] ? page_fault_oops+0xa8/0x230
[ 20.150757] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 20.150767] ? search_module_extables+0x4f/0x90
[ 20.150771] ? fixup_exception+0x36/0x2f0
[ 20.150773] ? exc_page_fault+0x88/0x1b0
[ 20.150776] ? asm_exc_page_fault+0x22/0x30
[ 20.150779] ? __pfx_radeon_dp_aux_transfer_atom+0x10/0x10 [radeon]
[ 20.150888] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 20.150900] radeon_dp_aux_init+0x91/0xc0 [radeon]
[ 20.150984] radeon_get_atom_connector_info_from_object_table+0x58e/0x880 [radeon]
[ 20.151047] ? radeon_get_atom_connector_info_from_supported_devices_table+0x5cf/0x600 [radeon]
[ 20.151111] ? kstrdup+0x4c/0x70
[ 20.151115] ? __kmalloc_noprof+0x24d/0x340
[ 20.151118] radeon_modeset_init+0x375/0x470 [radeon]
[ 20.151187] ? radeon_device_init+0x667/0xb40 [radeon]
[ 20.151250] radeon_driver_load_kms+0xc2/0x260 [radeon]
[ 20.151312] radeon_pci_probe+0xff/0x170 [radeon]
[ 20.151374] pci_device_probe+0xbe/0x1a0
[ 20.151377] really_probe+0xde/0x350
[ 20.151380] ? pm_runtime_barrier+0x61/0xb0
[ 20.151383] ? __pfx___driver_attach+0x10/0x10
[ 20.151386] __driver_probe_device+0x78/0x110
[ 20.151388] driver_probe_device+0x2d/0xc0
[ 20.151390] __driver_attach+0xc9/0x1c0
[ 20.151393] bus_for_each_dev+0x6a/0xb0
[ 20.151395] ? migrate_enable+0xbf/0xf0
[ 20.151397] bus_add_driver+0x139/0x220
[ 20.151400] driver_register+0x6e/0xc0
[ 20.151402] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
[ 20.151463] do_one_initcall+0x42/0x210
[ 20.151467] ? __kmalloc_cache_noprof+0x89/0x230
[ 20.151469] do_init_module+0x60/0x210
[ 20.151472] init_module_from_file+0x89/0xc0
[ 20.151475] __x64_sys_finit_module+0x142/0x390
[ 20.151477] do_syscall_64+0x47/0x110
[ 20.151480] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 20.151483] RIP: 0033:0x7ff9b9d82279
[ 20.151485] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64 89 01 48
[ 20.151486] RSP: 002b:00007fffc5f84708 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 20.151488] RAX: ffffffffffffffda RBX: 000055d02068d9b0 RCX: 00007ff9b9d82279
[ 20.151489] RDX: 0000000000000000 RSI: 000055d0206807f0 RDI: 0000000000000012
[ 20.151490] RBP: 0000000000000000 R08: 0000000000000001 R09: 000055d02066d540
[ 20.151491] R10: 0000000000000040 R11: 0000000000000246 R12: 000055d0206807f0
[ 20.151492] R13: 0000000000020000 R14: 000055d02067e510 R15: 0000000000000000
[ 20.151494] </TASK>
[ 20.151494] Modules linked in: i2c_mux dvb_usb_rtl28xxu(+) dvb_usb_v2 dvb_core mc snd_emu10k1_synth radeon(+) snd_emux_synth snd_seq_midi_emul snd_seq_virmidi drm_ttm_helper snd_seq_midi snd_seq_midi_event ttm snd_seq edac_mce_amd snd_hda_codec_hdmi sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 snd_emu10k1 aesni_intel drm_suballoc_helper snd_hda_intel drm_display_helper snd_intel_dspcfg snd_hda_codec snd_util_mem gf128mul snd_ac97_codec snd_hda_core drm_kms_helper crypto_simd cryptd ac97_bus snd_rawmidi k10temp snd_seq_device snd_hwdep snd_pcm drm acpi_cpufreq evdev serio_raw pcspkr at24 emu10k1_gp gameport regmap_i2c i2c_algo_bit snd_timer video snd sp5100_tco soundcore wmi button ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage hid_generic usbhid hid sg sr_mod cdrom sd_mod ata_generic firewire_ohci crc32_pclmul crc32c_intel ahci i2c_piix4 firewire_core crc_itu_t pata_atiixp libahci i2c_smbus ohci_pci xhci_pci libata xhci_hcd ehci_pci ohci_hcd r8169 ehci_hcd realtek scsi_mod mdio_devres usbcore
[ 20.151550] scsi_common libphy usb_common
[ 20.151553] CR2: 0000000000000050
[ 20.151555] ---[ end trace 0000000000000000 ]---
Regards,
Arthur.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: NULL pointer dereference after ib test on ring 7 succeeded
2024-09-25 0:22 ` NULL pointer dereference after ib test on ring 7 succeeded Arthur Marsh
@ 2024-09-25 8:02 ` Thomas Zimmermann
2024-09-30 15:25 ` NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU Arthur Marsh
0 siblings, 1 reply; 10+ messages in thread
From: Thomas Zimmermann @ 2024-09-25 8:02 UTC (permalink / raw)
To: Arthur Marsh, alexdeucher
Cc: Xinhui.Pan, airlied, alexander.deucher, amd-gfx, christian.koenig,
daniel, dri-devel, iommu, linux-kernel, wuhoipok, x86
Hi
Am 25.09.24 um 02:22 schrieb Arthur Marsh:
> After rebuilding current Linus git head with:
>
> dma-mapping: report unlimited DMA addressing in IOMMU DMA path
> b348b6d17fd1d5d89b86db602f02bea54a754bd8
I cannot yet apply this patch locally as a function is missing. I'll
wait for -rc1 to do further debugging.
Best regards
Thomas
>
> applied, the radeon module load gets further before hitting another
> NULL pointer dereference:
>
> [ 17.777472] [drm] radeon kernel modesetting enabled.
> [ 17.777536] radeon 0000:00:01.0: vgaarb: deactivate vga console
> [ 17.778276] Console: switching to colour dummy device 80x25
> [ 17.778519] [drm] initializing kernel modesetting (ARUBA 0x1002:0x990C 0x1002:0x0123 0x00).
> [ 17.778600] ATOM BIOS: 113
> [ 17.778658] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
> [ 17.778661] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
> [ 17.778665] [drm] Detected VRAM RAM=768M, BAR=256M
> [ 17.778665] [drm] RAM width 64bits DDR
> [ 17.778764] [drm] radeon: 768M of VRAM memory ready
> [ 17.778766] [drm] radeon: 1024M of GTT memory ready.
> [ 17.778777] [drm] Loading ARUBA Microcode
> [ 18.038084] [drm] Internal thermal controller without fan control
> [ 18.038425] [drm] radeon: dpm initialized
> [ 18.333508] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
> [ 18.333548] [drm] GART: num cpu pages 262144, num gpu pages 262144
> [ 18.353624] [drm] PCIE GART of 1024M enabled (table at 0x00000000001D6000).
> [ 18.353755] radeon 0000:00:01.0: WB enabled
> [ 18.353758] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000030000c00
> [ 18.354136] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000075a18
> [ 18.374206] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000030000c18
> [ 18.374208] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000030000c1c
> [ 18.374210] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000030000c04
> [ 18.374212] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000030000c08
> [ 18.374213] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000030000c0c
> [ 18.374214] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000030000c10
> [ 18.374469] radeon 0000:00:01.0: radeon: MSI limited to 32-bit
> [ 18.374525] radeon 0000:00:01.0: radeon: using MSI.
> [ 18.374604] [drm] radeon: irq initialized.
> [ 18.392823] [drm] ring test on 0 succeeded in 3 usecs
> [ 18.392831] [drm] ring test on 3 succeeded in 4 usecs
> [ 18.392836] [drm] ring test on 4 succeeded in 3 usecs
> [ 18.438526] [drm] ring test on 5 succeeded in 2 usecs
> [ 18.458380] [drm] UVD initialized successfully.
> [ 18.567616] [drm] ring test on 6 succeeded in 18 usecs
> [ 18.567626] [drm] ring test on 7 succeeded in 3 usecs
> [ 18.567627] [drm] VCE initialized successfully.
> [ 18.567686] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops radeon_audio_component_bind_ops [radeon])
> [ 18.567925] [drm] ib test on ring 0 succeeded in 0 usecs
> [ 18.567968] [drm] ib test on ring 3 succeeded in 0 usecs
> [ 18.568008] [drm] ib test on ring 4 succeeded in 0 usecs
> [ 19.094527] [drm] ib test on ring 5 succeeded
> [ 19.257713] mc: Linux media interface: v0.10
> [ 19.638235] [drm] ib test on ring 6 succeeded
> [ 20.017069] usb 1-3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
> [ 20.048473] usb 1-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
> [ 20.048493] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
> [ 20.048497] usb 1-3: media controller created
> [ 20.049487] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
> [ 20.150361] [drm] ib test on ring 7 succeeded
> [ 20.150700] BUG: kernel NULL pointer dereference, address: 0000000000000050
> [ 20.150702] #PF: supervisor read access in kernel mode
> [ 20.150704] #PF: error_code(0x0000) - not-present page
> [ 20.150705] PGD 0 P4D 0
> [ 20.150707] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
> [ 20.150710] CPU: 0 UID: 0 PID: 446 Comm: udevd Not tainted 6.11.0+ #6122
> [ 20.150713] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
> [ 20.150714] RIP: 0010:drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 20.150732] Code: a1 c0 48 85 f6 48 89 83 b8 00 00 00 74 1c 48 8d bb b4 03 00 00 ba 30 00 00 00 e8 52 e5 60 db 48 8d 7b 08 5b 5d e9 b7 ea 37 db <48> 8b 70 50 48 85 f6 75 db 48 8b 30 eb d6 48 8d ab 88 04 00 00 48
> [ 20.150734] RSP: 0018:ffff9eb8013cb960 EFLAGS: 00010246
> [ 20.150736] RAX: 0000000000000000 RBX: ffff8f1983bfc508 RCX: ffffffffc0bd1bc0
> [ 20.150737] RDX: ffffffffc0a1de40 RSI: 0000000000000000 RDI: ffff8f1983bfc9f0
> [ 20.150738] RBP: ffff8f1983bfc9f0 R08: ffff8f199ca70008 R09: 00000000c0c0c0c0
> [ 20.150739] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8f199da9af50
> [ 20.150740] R13: ffff8f199da9b092 R14: ffff8f199da9af2e R15: 0000000000000018
> [ 20.150741] FS: 00007ff9b9e6a840(0000) GS:ffff8f1caf800000(0000) knlGS:0000000000000000
> [ 20.150743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 20.150744] CR2: 0000000000000050 CR3: 00000001033e4000 CR4: 00000000000406f0
> [ 20.150745] Call Trace:
> [ 20.150747] <TASK>
> [ 20.150748] ? __die_body.cold+0x19/0x1e
> [ 20.150753] ? page_fault_oops+0xa8/0x230
> [ 20.150757] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 20.150767] ? search_module_extables+0x4f/0x90
> [ 20.150771] ? fixup_exception+0x36/0x2f0
> [ 20.150773] ? exc_page_fault+0x88/0x1b0
> [ 20.150776] ? asm_exc_page_fault+0x22/0x30
> [ 20.150779] ? __pfx_radeon_dp_aux_transfer_atom+0x10/0x10 [radeon]
> [ 20.150888] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 20.150900] radeon_dp_aux_init+0x91/0xc0 [radeon]
> [ 20.150984] radeon_get_atom_connector_info_from_object_table+0x58e/0x880 [radeon]
> [ 20.151047] ? radeon_get_atom_connector_info_from_supported_devices_table+0x5cf/0x600 [radeon]
> [ 20.151111] ? kstrdup+0x4c/0x70
> [ 20.151115] ? __kmalloc_noprof+0x24d/0x340
> [ 20.151118] radeon_modeset_init+0x375/0x470 [radeon]
> [ 20.151187] ? radeon_device_init+0x667/0xb40 [radeon]
> [ 20.151250] radeon_driver_load_kms+0xc2/0x260 [radeon]
> [ 20.151312] radeon_pci_probe+0xff/0x170 [radeon]
> [ 20.151374] pci_device_probe+0xbe/0x1a0
> [ 20.151377] really_probe+0xde/0x350
> [ 20.151380] ? pm_runtime_barrier+0x61/0xb0
> [ 20.151383] ? __pfx___driver_attach+0x10/0x10
> [ 20.151386] __driver_probe_device+0x78/0x110
> [ 20.151388] driver_probe_device+0x2d/0xc0
> [ 20.151390] __driver_attach+0xc9/0x1c0
> [ 20.151393] bus_for_each_dev+0x6a/0xb0
> [ 20.151395] ? migrate_enable+0xbf/0xf0
> [ 20.151397] bus_add_driver+0x139/0x220
> [ 20.151400] driver_register+0x6e/0xc0
> [ 20.151402] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
> [ 20.151463] do_one_initcall+0x42/0x210
> [ 20.151467] ? __kmalloc_cache_noprof+0x89/0x230
> [ 20.151469] do_init_module+0x60/0x210
> [ 20.151472] init_module_from_file+0x89/0xc0
> [ 20.151475] __x64_sys_finit_module+0x142/0x390
> [ 20.151477] do_syscall_64+0x47/0x110
> [ 20.151480] entry_SYSCALL_64_after_hwframe+0x76/0x7e
> [ 20.151483] RIP: 0033:0x7ff9b9d82279
> [ 20.151485] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 77 6b 0d 00 f7 d8 64 89 01 48
> [ 20.151486] RSP: 002b:00007fffc5f84708 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
> [ 20.151488] RAX: ffffffffffffffda RBX: 000055d02068d9b0 RCX: 00007ff9b9d82279
> [ 20.151489] RDX: 0000000000000000 RSI: 000055d0206807f0 RDI: 0000000000000012
> [ 20.151490] RBP: 0000000000000000 R08: 0000000000000001 R09: 000055d02066d540
> [ 20.151491] R10: 0000000000000040 R11: 0000000000000246 R12: 000055d0206807f0
> [ 20.151492] R13: 0000000000020000 R14: 000055d02067e510 R15: 0000000000000000
> [ 20.151494] </TASK>
> [ 20.151494] Modules linked in: i2c_mux dvb_usb_rtl28xxu(+) dvb_usb_v2 dvb_core mc snd_emu10k1_synth radeon(+) snd_emux_synth snd_seq_midi_emul snd_seq_virmidi drm_ttm_helper snd_seq_midi snd_seq_midi_event ttm snd_seq edac_mce_amd snd_hda_codec_hdmi sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 snd_emu10k1 aesni_intel drm_suballoc_helper snd_hda_intel drm_display_helper snd_intel_dspcfg snd_hda_codec snd_util_mem gf128mul snd_ac97_codec snd_hda_core drm_kms_helper crypto_simd cryptd ac97_bus snd_rawmidi k10temp snd_seq_device snd_hwdep snd_pcm drm acpi_cpufreq evdev serio_raw pcspkr at24 emu10k1_gp gameport regmap_i2c i2c_algo_bit snd_timer video snd sp5100_tco soundcore wmi button ext4 crc32c_generic crc16 mbcache jbd2 uas usb_storage hid_generic usbhid hid sg sr_mod cdrom sd_mod ata_generic firewire_ohci crc32_pclmul crc32c_intel ahci i2c_piix4 firewire_core crc_itu_t pata_atiixp libahci i2c_smbus ohci_pci xhci_pci libata xhci_hcd ehci_pci ohci_hcd r8169 ehci_hcd realtek scsi_mod mdio_devres usbcore
> [ 20.151550] scsi_common libphy usb_common
> [ 20.151553] CR2: 0000000000000050
> [ 20.151555] ---[ end trace 0000000000000000 ]---
>
> Regards,
>
> Arthur.
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: radeon ARUBA NULL pointer dereference
2024-09-24 19:30 ` Ewan Milne
@ 2024-09-25 18:13 ` Ewan Milne
0 siblings, 0 replies; 10+ messages in thread
From: Ewan Milne @ 2024-09-25 18:13 UTC (permalink / raw)
To: Alex Deucher
Cc: Thomas Zimmermann, Arthur Marsh, Xinhui.Pan, airlied,
alexander.deucher, amd-gfx, christian.koenig, daniel, dri-devel,
linux-kernel, wuhoipok, iommu, the arch/x86 maintainers,
Nilesh Javali, Martin K. Petersen
Follow-up, qla2xxx appears to be fixed, most recent test was with:
commit 684a64bf32b6e488004e0ad7f0d7e922798f65b6 (HEAD -> master,
origin/master, origin/HEAD)
Merge: f7fccaa77271 68898131d2df
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue Sep 24 15:44:18 2024 -0700
Merge tag 'nfs-for-6.12-1' of
git://git.linux-nfs.org/projects/anna/linux-nfs
I suppose the most likely fix was probably this one but I do not have
the HW to verify
(report I got was on an AMD EPYC 7262):
commit b348b6d17fd1d5d89b86db602f02bea54a754bd8
Author: Leon Romanovsky <leon@kernel.org>
Date: Sun Sep 22 21:09:48 2024 +0300
dma-mapping: report unlimited DMA addressing in IOMMU DMA path
-Ewan
On Tue, Sep 24, 2024 at 3:30 PM Ewan Milne <emilne@redhat.com> wrote:
>
> I think we are seeing a similar problem w/qla2xxx panicing at boot:
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU
2024-09-25 8:02 ` Thomas Zimmermann
@ 2024-09-30 15:25 ` Arthur Marsh
2024-09-30 17:54 ` Christian König
0 siblings, 1 reply; 10+ messages in thread
From: Arthur Marsh @ 2024-09-30 15:25 UTC (permalink / raw)
To: tzimmermann
Cc: Xinhui.Pan, airlied, alexander.deucher, alexdeucher, amd-gfx,
arthur.marsh, christian.koenig, daniel, dri-devel, iommu,
linux-kernel, wuhoipok, x86
[ 13.069630] [drm] radeon kernel modesetting enabled.
[ 13.069681] radeon 0000:00:01.0: vgaarb: deactivate vga console
[ 13.070435] Console: switching to colour dummy device 80x25
[ 13.070632] [drm] initializing kernel modesetting (ARUBA 0x1002:0x990C 0x1002:0x0123 0x00).
[ 13.070718] ATOM BIOS: 113
[ 13.070778] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
[ 13.070781] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
[ 13.070785] [drm] Detected VRAM RAM=768M, BAR=256M
[ 13.070786] [drm] RAM width 64bits DDR
[ 13.070884] [drm] radeon: 768M of VRAM memory ready
[ 13.070885] [drm] radeon: 1024M of GTT memory ready.
[ 13.070896] [drm] Loading ARUBA Microcode
[ 13.504398] [drm] Internal thermal controller without fan control
[ 13.504566] [drm] radeon: dpm initialized
[ 13.839229] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
[ 13.839264] [drm] GART: num cpu pages 262144, num gpu pages 262144
[ 13.863929] [drm] PCIE GART of 1024M enabled (table at 0x00000000001D6000).
[ 13.864085] radeon 0000:00:01.0: WB enabled
[ 13.864088] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000030000c00
[ 13.864467] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000075a18
[ 13.884497] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000030000c18
[ 13.884502] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000030000c1c
[ 13.884503] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000030000c04
[ 13.884505] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000030000c08
[ 13.884506] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000030000c0c
[ 13.884507] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000030000c10
[ 13.884862] radeon 0000:00:01.0: radeon: MSI limited to 32-bit
[ 13.884921] radeon 0000:00:01.0: radeon: using MSI.
[ 13.885003] [drm] radeon: irq initialized.
[ 13.903273] [drm] ring test on 0 succeeded in 3 usecs
[ 13.903281] [drm] ring test on 3 succeeded in 4 usecs
[ 13.903286] [drm] ring test on 4 succeeded in 3 usecs
[ 13.949128] [drm] ring test on 5 succeeded in 2 usecs
[ 13.968988] [drm] UVD initialized successfully.
[ 14.078221] [drm] ring test on 6 succeeded in 17 usecs
[ 14.078234] [drm] ring test on 7 succeeded in 3 usecs
[ 14.078236] [drm] VCE initialized successfully.
[ 14.078314] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops radeon_audio_component_bind_ops [radeon])
[ 14.078502] [drm] ib test on ring 0 succeeded in 0 usecs
[ 14.078555] [drm] ib test on ring 3 succeeded in 0 usecs
[ 14.078606] [drm] ib test on ring 4 succeeded in 0 usecs
[ 14.153378] mc: Linux media interface: v0.10
[ 14.593759] usb 1-3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
[ 14.614227] [drm] ib test on ring 5 succeeded
[ 14.625865] usb 1-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
[ 14.625885] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
[ 14.625889] usb 1-3: media controller created
[ 14.627064] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
[ 14.801142] i2c i2c-5: Added multiplexed i2c bus 6
[ 14.801149] rtl2832 5-0010: Realtek RTL2832 successfully attached
[ 14.801176] usb 1-3: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
[ 14.801189] dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
[ 14.957783] i2c i2c-6: fc0012: Fitipower FC0012 successfully identified
[ 15.158461] [drm] ib test on ring 6 succeeded
[ 15.178787] videodev: Linux video capture interface: v2.00
[ 15.460709] rtl2832_sdr rtl2832_sdr.1.auto: Registered as swradio0
[ 15.460715] rtl2832_sdr rtl2832_sdr.1.auto: Realtek RTL2832 SDR attached
[ 15.460718] rtl2832_sdr rtl2832_sdr.1.auto: SDR API is still slightly experimental and functionality changes may follow
[ 15.477759] usb 1-3: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected
[ 15.477878] usbcore: registered new interface driver dvb_usb_rtl28xxu
[ 15.670413] [drm] ib test on ring 7 succeeded
[ 15.671111] BUG: kernel NULL pointer dereference, address: 0000000000000050
[ 15.671114] #PF: supervisor read access in kernel mode
[ 15.671117] #PF: error_code(0x0000) - not-present page
[ 15.671119] PGD 0 P4D 0
[ 15.671123] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
[ 15.671127] CPU: 2 UID: 0 PID: 437 Comm: udevd Not tainted 6.12.0-rc1 #6131
[ 15.671132] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
[ 15.671134] RIP: 0010:drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 15.671164] Code: 86 c0 48 85 f6 48 89 83 b8 00 00 00 74 1c 48 8d bb b4 03 00 00 ba 30 00 00 00 e8 52 35 bc c7 48 8d 7b 08 5b 5d e9 37 31 93 c7 <48> 8b 70 50 48 85 f6 75 db 48 8b 30 eb d6 48 8d ab 88 04 00 00 48
[ 15.671167] RSP: 0018:ffffb37f80e33960 EFLAGS: 00010246
[ 15.671170] RAX: 0000000000000000 RBX: ffff892d407ee508 RCX: ffffffffc09b3bc0
[ 15.671172] RDX: ffffffffc0869e40 RSI: 0000000000000000 RDI: ffff892d407ee9f0
[ 15.671174] RBP: ffff892d407ee9f0 R08: ffff892d42fb8008 R09: 00000000c0c0c0c0
[ 15.671176] R10: 0000000000000000 R11: 0000000000000001 R12: ffff892d5b64af50
[ 15.671178] R13: ffff892d5b64b092 R14: ffff892d5b64af2e R15: 0000000000000018
[ 15.671181] FS: 00007f066d882840(0000) GS:ffff89306f900000(0000) knlGS:0000000000000000
[ 15.671183] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 15.671185] CR2: 0000000000000050 CR3: 00000001047a6000 CR4: 00000000000406f0
[ 15.671188] Call Trace:
[ 15.671190] <TASK>
[ 15.671192] ? __die_body.cold+0x19/0x1e
[ 15.671200] ? page_fault_oops+0xa8/0x230
[ 15.671206] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 15.671227] ? search_module_extables+0x4f/0x90
[ 15.671233] ? fixup_exception+0x36/0x2f0
[ 15.671239] ? exc_page_fault+0x88/0x1b0
[ 15.671244] ? asm_exc_page_fault+0x22/0x30
[ 15.671251] ? __pfx_radeon_dp_aux_transfer_atom+0x10/0x10 [radeon]
[ 15.671437] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
[ 15.671463] radeon_dp_aux_init+0x91/0xc0 [radeon]
[ 15.671634] radeon_get_atom_connector_info_from_object_table+0x58e/0x880 [radeon]
[ 15.671764] ? radeon_get_atom_connector_info_from_supported_devices_table+0x5cf/0x600 [radeon]
[ 15.671895] ? kstrdup+0x4c/0x70
[ 15.671902] ? __kmalloc_noprof+0x24d/0x340
[ 15.671908] radeon_modeset_init+0x375/0x470 [radeon]
[ 15.672050] ? radeon_device_init+0x667/0xb40 [radeon]
[ 15.672179] radeon_driver_load_kms+0xc2/0x260 [radeon]
[ 15.672308] radeon_pci_probe+0xff/0x170 [radeon]
[ 15.672436] pci_device_probe+0xbe/0x1a0
[ 15.672441] really_probe+0xde/0x350
[ 15.672447] ? pm_runtime_barrier+0x61/0xb0
[ 15.672452] ? __pfx___driver_attach+0x10/0x10
[ 15.672457] __driver_probe_device+0x78/0x110
[ 15.672462] driver_probe_device+0x2d/0xc0
[ 15.672467] __driver_attach+0xc9/0x1c0
[ 15.672472] bus_for_each_dev+0x6a/0xb0
[ 15.672476] ? migrate_enable+0xbf/0xf0
[ 15.672480] bus_add_driver+0x139/0x220
[ 15.672485] driver_register+0x6e/0xc0
[ 15.672491] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
[ 15.672616] do_one_initcall+0x42/0x210
[ 15.672622] ? __kmalloc_cache_noprof+0x89/0x230
[ 15.672627] do_init_module+0x60/0x210
[ 15.672631] init_module_from_file+0x89/0xc0
[ 15.672637] __x64_sys_finit_module+0x142/0x390
[ 15.672643] do_syscall_64+0x47/0x110
[ 15.672647] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 15.672653] RIP: 0033:0x7f066d6b3839
[ 15.672657] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 b7 85 0d 00 f7 d8 64 89 01 48
[ 15.672659] RSP: 002b:00007ffead344b38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[ 15.672663] RAX: ffffffffffffffda RBX: 00005586f29e09b0 RCX: 00007f066d6b3839
[ 15.672665] RDX: 0000000000000000 RSI: 00005586f29d08d0 RDI: 0000000000000011
[ 15.672667] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005586f29c0540
[ 15.672669] R10: 00007f066d78cac0 R11: 0000000000000246 R12: 00005586f29d08d0
[ 15.672671] R13: 0000000000020000 R14: 00005586f29d82e0 R15: 0000000000000000
[ 15.672675] </TASK>
[ 15.672676] Modules linked in: rtl2832_sdr videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev fc0012 rtl2832 i2c_mux dvb_usb_rtl28xxu dvb_usb_v2 dvb_core mc snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul snd_seq_virmidi radeon(+) snd_seq_midi snd_seq_midi_event snd_seq snd_emu10k1 drm_ttm_helper ttm snd_hda_codec_hdmi drm_suballoc_helper snd_hda_intel snd_util_mem drm_display_helper snd_ac97_codec snd_intel_dspcfg snd_hda_codec snd_hda_core ac97_bus snd_hwdep snd_rawmidi snd_seq_device snd_pcm drm_kms_helper snd_timer edac_mce_amd k10temp sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 drm aesni_intel snd gf128mul at24 crypto_simd cryptd soundcore acpi_cpufreq regmap_i2c emu10k1_gp gameport pcspkr evdev serio_raw i2c_algo_bit video sp5100_tco wmi button ext4 crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sg sr_mod cdrom sd_mod ata_generic crc32_pclmul firewire_ohci crc32c_intel firewire_core ahci i2c_piix4 crc_itu_t pata_atiixp i2c_smbus r8169 libahci ohci_pci xhci_pci libata
[ 15.672761] realtek ohci_hcd ehci_pci xhci_hcd ehci_hcd mdio_devres scsi_mod scsi_common libphy usbcore usb_common
[ 15.672773] CR2: 0000000000000050
[ 15.672776] ---[ end trace 0000000000000000 ]---
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU
2024-09-30 15:25 ` NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU Arthur Marsh
@ 2024-09-30 17:54 ` Christian König
2024-10-07 12:44 ` Thomas Zimmermann
0 siblings, 1 reply; 10+ messages in thread
From: Christian König @ 2024-09-30 17:54 UTC (permalink / raw)
To: Arthur Marsh, tzimmermann
Cc: Xinhui.Pan, airlied, alexander.deucher, alexdeucher, amd-gfx,
daniel, dri-devel, iommu, linux-kernel, wuhoipok, x86
I've been running into the same issue as well. Going to take a look.
Christian.
Am 30.09.24 um 17:25 schrieb Arthur Marsh:
> [ 13.069630] [drm] radeon kernel modesetting enabled.
> [ 13.069681] radeon 0000:00:01.0: vgaarb: deactivate vga console
> [ 13.070435] Console: switching to colour dummy device 80x25
> [ 13.070632] [drm] initializing kernel modesetting (ARUBA 0x1002:0x990C 0x1002:0x0123 0x00).
> [ 13.070718] ATOM BIOS: 113
> [ 13.070778] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 - 0x000000002FFFFFFF (768M used)
> [ 13.070781] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 - 0x000000006FFFFFFF
> [ 13.070785] [drm] Detected VRAM RAM=768M, BAR=256M
> [ 13.070786] [drm] RAM width 64bits DDR
> [ 13.070884] [drm] radeon: 768M of VRAM memory ready
> [ 13.070885] [drm] radeon: 1024M of GTT memory ready.
> [ 13.070896] [drm] Loading ARUBA Microcode
> [ 13.504398] [drm] Internal thermal controller without fan control
> [ 13.504566] [drm] radeon: dpm initialized
> [ 13.839229] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
> [ 13.839264] [drm] GART: num cpu pages 262144, num gpu pages 262144
> [ 13.863929] [drm] PCIE GART of 1024M enabled (table at 0x00000000001D6000).
> [ 13.864085] radeon 0000:00:01.0: WB enabled
> [ 13.864088] radeon 0000:00:01.0: fence driver on ring 0 use gpu addr 0x0000000030000c00
> [ 13.864467] radeon 0000:00:01.0: fence driver on ring 5 use gpu addr 0x0000000000075a18
> [ 13.884497] radeon 0000:00:01.0: fence driver on ring 6 use gpu addr 0x0000000030000c18
> [ 13.884502] radeon 0000:00:01.0: fence driver on ring 7 use gpu addr 0x0000000030000c1c
> [ 13.884503] radeon 0000:00:01.0: fence driver on ring 1 use gpu addr 0x0000000030000c04
> [ 13.884505] radeon 0000:00:01.0: fence driver on ring 2 use gpu addr 0x0000000030000c08
> [ 13.884506] radeon 0000:00:01.0: fence driver on ring 3 use gpu addr 0x0000000030000c0c
> [ 13.884507] radeon 0000:00:01.0: fence driver on ring 4 use gpu addr 0x0000000030000c10
> [ 13.884862] radeon 0000:00:01.0: radeon: MSI limited to 32-bit
> [ 13.884921] radeon 0000:00:01.0: radeon: using MSI.
> [ 13.885003] [drm] radeon: irq initialized.
> [ 13.903273] [drm] ring test on 0 succeeded in 3 usecs
> [ 13.903281] [drm] ring test on 3 succeeded in 4 usecs
> [ 13.903286] [drm] ring test on 4 succeeded in 3 usecs
> [ 13.949128] [drm] ring test on 5 succeeded in 2 usecs
> [ 13.968988] [drm] UVD initialized successfully.
> [ 14.078221] [drm] ring test on 6 succeeded in 17 usecs
> [ 14.078234] [drm] ring test on 7 succeeded in 3 usecs
> [ 14.078236] [drm] VCE initialized successfully.
> [ 14.078314] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops radeon_audio_component_bind_ops [radeon])
> [ 14.078502] [drm] ib test on ring 0 succeeded in 0 usecs
> [ 14.078555] [drm] ib test on ring 3 succeeded in 0 usecs
> [ 14.078606] [drm] ib test on ring 4 succeeded in 0 usecs
> [ 14.153378] mc: Linux media interface: v0.10
> [ 14.593759] usb 1-3: dvb_usb_v2: found a 'Realtek RTL2832U reference design' in warm state
> [ 14.614227] [drm] ib test on ring 5 succeeded
> [ 14.625865] usb 1-3: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer
> [ 14.625885] dvbdev: DVB: registering new adapter (Realtek RTL2832U reference design)
> [ 14.625889] usb 1-3: media controller created
> [ 14.627064] dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
> [ 14.801142] i2c i2c-5: Added multiplexed i2c bus 6
> [ 14.801149] rtl2832 5-0010: Realtek RTL2832 successfully attached
> [ 14.801176] usb 1-3: DVB: registering adapter 0 frontend 0 (Realtek RTL2832 (DVB-T))...
> [ 14.801189] dvbdev: dvb_create_media_entity: media entity 'Realtek RTL2832 (DVB-T)' registered.
> [ 14.957783] i2c i2c-6: fc0012: Fitipower FC0012 successfully identified
> [ 15.158461] [drm] ib test on ring 6 succeeded
> [ 15.178787] videodev: Linux video capture interface: v2.00
> [ 15.460709] rtl2832_sdr rtl2832_sdr.1.auto: Registered as swradio0
> [ 15.460715] rtl2832_sdr rtl2832_sdr.1.auto: Realtek RTL2832 SDR attached
> [ 15.460718] rtl2832_sdr rtl2832_sdr.1.auto: SDR API is still slightly experimental and functionality changes may follow
> [ 15.477759] usb 1-3: dvb_usb_v2: 'Realtek RTL2832U reference design' successfully initialized and connected
> [ 15.477878] usbcore: registered new interface driver dvb_usb_rtl28xxu
> [ 15.670413] [drm] ib test on ring 7 succeeded
> [ 15.671111] BUG: kernel NULL pointer dereference, address: 0000000000000050
> [ 15.671114] #PF: supervisor read access in kernel mode
> [ 15.671117] #PF: error_code(0x0000) - not-present page
> [ 15.671119] PGD 0 P4D 0
> [ 15.671123] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
> [ 15.671127] CPU: 2 UID: 0 PID: 437 Comm: udevd Not tainted 6.12.0-rc1 #6131
> [ 15.671132] Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
> [ 15.671134] RIP: 0010:drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 15.671164] Code: 86 c0 48 85 f6 48 89 83 b8 00 00 00 74 1c 48 8d bb b4 03 00 00 ba 30 00 00 00 e8 52 35 bc c7 48 8d 7b 08 5b 5d e9 37 31 93 c7 <48> 8b 70 50 48 85 f6 75 db 48 8b 30 eb d6 48 8d ab 88 04 00 00 48
> [ 15.671167] RSP: 0018:ffffb37f80e33960 EFLAGS: 00010246
> [ 15.671170] RAX: 0000000000000000 RBX: ffff892d407ee508 RCX: ffffffffc09b3bc0
> [ 15.671172] RDX: ffffffffc0869e40 RSI: 0000000000000000 RDI: ffff892d407ee9f0
> [ 15.671174] RBP: ffff892d407ee9f0 R08: ffff892d42fb8008 R09: 00000000c0c0c0c0
> [ 15.671176] R10: 0000000000000000 R11: 0000000000000001 R12: ffff892d5b64af50
> [ 15.671178] R13: ffff892d5b64b092 R14: ffff892d5b64af2e R15: 0000000000000018
> [ 15.671181] FS: 00007f066d882840(0000) GS:ffff89306f900000(0000) knlGS:0000000000000000
> [ 15.671183] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 15.671185] CR2: 0000000000000050 CR3: 00000001047a6000 CR4: 00000000000406f0
> [ 15.671188] Call Trace:
> [ 15.671190] <TASK>
> [ 15.671192] ? __die_body.cold+0x19/0x1e
> [ 15.671200] ? page_fault_oops+0xa8/0x230
> [ 15.671206] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 15.671227] ? search_module_extables+0x4f/0x90
> [ 15.671233] ? fixup_exception+0x36/0x2f0
> [ 15.671239] ? exc_page_fault+0x88/0x1b0
> [ 15.671244] ? asm_exc_page_fault+0x22/0x30
> [ 15.671251] ? __pfx_radeon_dp_aux_transfer_atom+0x10/0x10 [radeon]
> [ 15.671437] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
> [ 15.671463] radeon_dp_aux_init+0x91/0xc0 [radeon]
> [ 15.671634] radeon_get_atom_connector_info_from_object_table+0x58e/0x880 [radeon]
> [ 15.671764] ? radeon_get_atom_connector_info_from_supported_devices_table+0x5cf/0x600 [radeon]
> [ 15.671895] ? kstrdup+0x4c/0x70
> [ 15.671902] ? __kmalloc_noprof+0x24d/0x340
> [ 15.671908] radeon_modeset_init+0x375/0x470 [radeon]
> [ 15.672050] ? radeon_device_init+0x667/0xb40 [radeon]
> [ 15.672179] radeon_driver_load_kms+0xc2/0x260 [radeon]
> [ 15.672308] radeon_pci_probe+0xff/0x170 [radeon]
> [ 15.672436] pci_device_probe+0xbe/0x1a0
> [ 15.672441] really_probe+0xde/0x350
> [ 15.672447] ? pm_runtime_barrier+0x61/0xb0
> [ 15.672452] ? __pfx___driver_attach+0x10/0x10
> [ 15.672457] __driver_probe_device+0x78/0x110
> [ 15.672462] driver_probe_device+0x2d/0xc0
> [ 15.672467] __driver_attach+0xc9/0x1c0
> [ 15.672472] bus_for_each_dev+0x6a/0xb0
> [ 15.672476] ? migrate_enable+0xbf/0xf0
> [ 15.672480] bus_add_driver+0x139/0x220
> [ 15.672485] driver_register+0x6e/0xc0
> [ 15.672491] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
> [ 15.672616] do_one_initcall+0x42/0x210
> [ 15.672622] ? __kmalloc_cache_noprof+0x89/0x230
> [ 15.672627] do_init_module+0x60/0x210
> [ 15.672631] init_module_from_file+0x89/0xc0
> [ 15.672637] __x64_sys_finit_module+0x142/0x390
> [ 15.672643] do_syscall_64+0x47/0x110
> [ 15.672647] entry_SYSCALL_64_after_hwframe+0x76/0x7e
> [ 15.672653] RIP: 0033:0x7f066d6b3839
> [ 15.672657] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 b7 85 0d 00 f7 d8 64 89 01 48
> [ 15.672659] RSP: 002b:00007ffead344b38 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
> [ 15.672663] RAX: ffffffffffffffda RBX: 00005586f29e09b0 RCX: 00007f066d6b3839
> [ 15.672665] RDX: 0000000000000000 RSI: 00005586f29d08d0 RDI: 0000000000000011
> [ 15.672667] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005586f29c0540
> [ 15.672669] R10: 00007f066d78cac0 R11: 0000000000000246 R12: 00005586f29d08d0
> [ 15.672671] R13: 0000000000020000 R14: 00005586f29d82e0 R15: 0000000000000000
> [ 15.672675] </TASK>
> [ 15.672676] Modules linked in: rtl2832_sdr videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev fc0012 rtl2832 i2c_mux dvb_usb_rtl28xxu dvb_usb_v2 dvb_core mc snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul snd_seq_virmidi radeon(+) snd_seq_midi snd_seq_midi_event snd_seq snd_emu10k1 drm_ttm_helper ttm snd_hda_codec_hdmi drm_suballoc_helper snd_hda_intel snd_util_mem drm_display_helper snd_ac97_codec snd_intel_dspcfg snd_hda_codec snd_hda_core ac97_bus snd_hwdep snd_rawmidi snd_seq_device snd_pcm drm_kms_helper snd_timer edac_mce_amd k10temp sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 drm aesni_intel snd gf128mul at24 crypto_simd cryptd soundcore acpi_cpufreq regmap_i2c emu10k1_gp gameport pcspkr evdev serio_raw i2c_algo_bit video sp5100_tco wmi button ext4 crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sg sr_mod cdrom sd_mod ata_generic crc32_pclmul firewire_ohci crc32c_intel firewire_core ahci i2c_piix4 crc_itu_t pata_atiixp i2c_smbus r8169 libahci ohci_pci xhci_pci libata
> [ 15.672761] realtek ohci_hcd ehci_pci xhci_hcd ehci_hcd mdio_devres scsi_mod scsi_common libphy usbcore usb_common
> [ 15.672773] CR2: 0000000000000050
> [ 15.672776] ---[ end trace 0000000000000000 ]---
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU
2024-09-30 17:54 ` Christian König
@ 2024-10-07 12:44 ` Thomas Zimmermann
0 siblings, 0 replies; 10+ messages in thread
From: Thomas Zimmermann @ 2024-10-07 12:44 UTC (permalink / raw)
To: Christian König, Arthur Marsh
Cc: Xinhui.Pan, airlied, alexander.deucher, alexdeucher, amd-gfx,
daniel, dri-devel, iommu, linux-kernel, wuhoipok, x86
Hi
Am 30.09.24 um 19:54 schrieb Christian König:
> I've been running into the same issue as well. Going to take a look.
Any results?
>
> Christian.
>
> Am 30.09.24 um 17:25 schrieb Arthur Marsh:
>> [ 13.069630] [drm] radeon kernel modesetting enabled.
>> [ 13.069681] radeon 0000:00:01.0: vgaarb: deactivate vga console
>> [ 13.070435] Console: switching to colour dummy device 80x25
>> [ 13.070632] [drm] initializing kernel modesetting (ARUBA
>> 0x1002:0x990C 0x1002:0x0123 0x00).
>> [ 13.070718] ATOM BIOS: 113
>> [ 13.070778] radeon 0000:00:01.0: VRAM: 768M 0x0000000000000000 -
>> 0x000000002FFFFFFF (768M used)
>> [ 13.070781] radeon 0000:00:01.0: GTT: 1024M 0x0000000030000000 -
>> 0x000000006FFFFFFF
>> [ 13.070785] [drm] Detected VRAM RAM=768M, BAR=256M
>> [ 13.070786] [drm] RAM width 64bits DDR
>> [ 13.070884] [drm] radeon: 768M of VRAM memory ready
>> [ 13.070885] [drm] radeon: 1024M of GTT memory ready.
>> [ 13.070896] [drm] Loading ARUBA Microcode
>> [ 13.504398] [drm] Internal thermal controller without fan control
>> [ 13.504566] [drm] radeon: dpm initialized
>> [ 13.839229] [drm] Found VCE firmware/feedback version 50.0.1 / 17!
>> [ 13.839264] [drm] GART: num cpu pages 262144, num gpu pages 262144
>> [ 13.863929] [drm] PCIE GART of 1024M enabled (table at
>> 0x00000000001D6000).
>> [ 13.864085] radeon 0000:00:01.0: WB enabled
>> [ 13.864088] radeon 0000:00:01.0: fence driver on ring 0 use gpu
>> addr 0x0000000030000c00
>> [ 13.864467] radeon 0000:00:01.0: fence driver on ring 5 use gpu
>> addr 0x0000000000075a18
>> [ 13.884497] radeon 0000:00:01.0: fence driver on ring 6 use gpu
>> addr 0x0000000030000c18
>> [ 13.884502] radeon 0000:00:01.0: fence driver on ring 7 use gpu
>> addr 0x0000000030000c1c
>> [ 13.884503] radeon 0000:00:01.0: fence driver on ring 1 use gpu
>> addr 0x0000000030000c04
>> [ 13.884505] radeon 0000:00:01.0: fence driver on ring 2 use gpu
>> addr 0x0000000030000c08
>> [ 13.884506] radeon 0000:00:01.0: fence driver on ring 3 use gpu
>> addr 0x0000000030000c0c
>> [ 13.884507] radeon 0000:00:01.0: fence driver on ring 4 use gpu
>> addr 0x0000000030000c10
>> [ 13.884862] radeon 0000:00:01.0: radeon: MSI limited to 32-bit
>> [ 13.884921] radeon 0000:00:01.0: radeon: using MSI.
>> [ 13.885003] [drm] radeon: irq initialized.
>> [ 13.903273] [drm] ring test on 0 succeeded in 3 usecs
>> [ 13.903281] [drm] ring test on 3 succeeded in 4 usecs
>> [ 13.903286] [drm] ring test on 4 succeeded in 3 usecs
>> [ 13.949128] [drm] ring test on 5 succeeded in 2 usecs
>> [ 13.968988] [drm] UVD initialized successfully.
>> [ 14.078221] [drm] ring test on 6 succeeded in 17 usecs
>> [ 14.078234] [drm] ring test on 7 succeeded in 3 usecs
>> [ 14.078236] [drm] VCE initialized successfully.
>> [ 14.078314] snd_hda_intel 0000:00:01.1: bound 0000:00:01.0 (ops
>> radeon_audio_component_bind_ops [radeon])
>> [ 14.078502] [drm] ib test on ring 0 succeeded in 0 usecs
>> [ 14.078555] [drm] ib test on ring 3 succeeded in 0 usecs
>> [ 14.078606] [drm] ib test on ring 4 succeeded in 0 usecs
>> [ 14.153378] mc: Linux media interface: v0.10
>> [ 14.593759] usb 1-3: dvb_usb_v2: found a 'Realtek RTL2832U
>> reference design' in warm state
>> [ 14.614227] [drm] ib test on ring 5 succeeded
>> [ 14.625865] usb 1-3: dvb_usb_v2: will pass the complete MPEG2
>> transport stream to the software demuxer
>> [ 14.625885] dvbdev: DVB: registering new adapter (Realtek RTL2832U
>> reference design)
>> [ 14.625889] usb 1-3: media controller created
>> [ 14.627064] dvbdev: dvb_create_media_entity: media entity
>> 'dvb-demux' registered.
>> [ 14.801142] i2c i2c-5: Added multiplexed i2c bus 6
>> [ 14.801149] rtl2832 5-0010: Realtek RTL2832 successfully attached
>> [ 14.801176] usb 1-3: DVB: registering adapter 0 frontend 0
>> (Realtek RTL2832 (DVB-T))...
>> [ 14.801189] dvbdev: dvb_create_media_entity: media entity 'Realtek
>> RTL2832 (DVB-T)' registered.
>> [ 14.957783] i2c i2c-6: fc0012: Fitipower FC0012 successfully
>> identified
>> [ 15.158461] [drm] ib test on ring 6 succeeded
>> [ 15.178787] videodev: Linux video capture interface: v2.00
>> [ 15.460709] rtl2832_sdr rtl2832_sdr.1.auto: Registered as swradio0
>> [ 15.460715] rtl2832_sdr rtl2832_sdr.1.auto: Realtek RTL2832 SDR
>> attached
>> [ 15.460718] rtl2832_sdr rtl2832_sdr.1.auto: SDR API is still
>> slightly experimental and functionality changes may follow
>> [ 15.477759] usb 1-3: dvb_usb_v2: 'Realtek RTL2832U reference
>> design' successfully initialized and connected
>> [ 15.477878] usbcore: registered new interface driver dvb_usb_rtl28xxu
>> [ 15.670413] [drm] ib test on ring 7 succeeded
>> [ 15.671111] BUG: kernel NULL pointer dereference, address:
>> 0000000000000050
>> [ 15.671114] #PF: supervisor read access in kernel mode
>> [ 15.671117] #PF: error_code(0x0000) - not-present page
>> [ 15.671119] PGD 0 P4D 0
>> [ 15.671123] Oops: Oops: 0000 [#1] PREEMPT_RT SMP NOPTI
>> [ 15.671127] CPU: 2 UID: 0 PID: 437 Comm: udevd Not tainted
>> 6.12.0-rc1 #6131
>> [ 15.671132] Hardware name: Gigabyte Technology Co., Ltd. To be
>> filled by O.E.M./F2A78M-HD2, BIOS F2 05/28/2014
>> [ 15.671134] RIP: 0010:drm_dp_aux_register+0x59/0x110
>> [drm_display_helper]
>> [ 15.671164] Code: 86 c0 48 85 f6 48 89 83 b8 00 00 00 74 1c 48 8d
>> bb b4 03 00 00 ba 30 00 00 00 e8 52 35 bc c7 48 8d 7b 08 5b 5d e9 37
>> 31 93 c7 <48> 8b 70 50 48 85 f6 75 db 48 8b 30 eb d6 48 8d ab 88 04
>> 00 00 48
>> [ 15.671167] RSP: 0018:ffffb37f80e33960 EFLAGS: 00010246
>> [ 15.671170] RAX: 0000000000000000 RBX: ffff892d407ee508 RCX:
>> ffffffffc09b3bc0
>> [ 15.671172] RDX: ffffffffc0869e40 RSI: 0000000000000000 RDI:
>> ffff892d407ee9f0
>> [ 15.671174] RBP: ffff892d407ee9f0 R08: ffff892d42fb8008 R09:
>> 00000000c0c0c0c0
>> [ 15.671176] R10: 0000000000000000 R11: 0000000000000001 R12:
>> ffff892d5b64af50
>> [ 15.671178] R13: ffff892d5b64b092 R14: ffff892d5b64af2e R15:
>> 0000000000000018
>> [ 15.671181] FS: 00007f066d882840(0000) GS:ffff89306f900000(0000)
>> knlGS:0000000000000000
>> [ 15.671183] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 15.671185] CR2: 0000000000000050 CR3: 00000001047a6000 CR4:
>> 00000000000406f0
>> [ 15.671188] Call Trace:
>> [ 15.671190] <TASK>
>> [ 15.671192] ? __die_body.cold+0x19/0x1e
>> [ 15.671200] ? page_fault_oops+0xa8/0x230
>> [ 15.671206] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
>> [ 15.671227] ? search_module_extables+0x4f/0x90
>> [ 15.671233] ? fixup_exception+0x36/0x2f0
>> [ 15.671239] ? exc_page_fault+0x88/0x1b0
>> [ 15.671244] ? asm_exc_page_fault+0x22/0x30
>> [ 15.671251] ? __pfx_radeon_dp_aux_transfer_atom+0x10/0x10 [radeon]
>> [ 15.671437] ? drm_dp_aux_register+0x59/0x110 [drm_display_helper]
>> [ 15.671463] radeon_dp_aux_init+0x91/0xc0 [radeon]
>> [ 15.671634]
>> radeon_get_atom_connector_info_from_object_table+0x58e/0x880 [radeon]
>> [ 15.671764] ?
>> radeon_get_atom_connector_info_from_supported_devices_table+0x5cf/0x600
>> [radeon]
>> [ 15.671895] ? kstrdup+0x4c/0x70
>> [ 15.671902] ? __kmalloc_noprof+0x24d/0x340
>> [ 15.671908] radeon_modeset_init+0x375/0x470 [radeon]
>> [ 15.672050] ? radeon_device_init+0x667/0xb40 [radeon]
>> [ 15.672179] radeon_driver_load_kms+0xc2/0x260 [radeon]
>> [ 15.672308] radeon_pci_probe+0xff/0x170 [radeon]
>> [ 15.672436] pci_device_probe+0xbe/0x1a0
>> [ 15.672441] really_probe+0xde/0x350
>> [ 15.672447] ? pm_runtime_barrier+0x61/0xb0
>> [ 15.672452] ? __pfx___driver_attach+0x10/0x10
>> [ 15.672457] __driver_probe_device+0x78/0x110
>> [ 15.672462] driver_probe_device+0x2d/0xc0
>> [ 15.672467] __driver_attach+0xc9/0x1c0
>> [ 15.672472] bus_for_each_dev+0x6a/0xb0
>> [ 15.672476] ? migrate_enable+0xbf/0xf0
>> [ 15.672480] bus_add_driver+0x139/0x220
>> [ 15.672485] driver_register+0x6e/0xc0
>> [ 15.672491] ? __pfx_radeon_module_init+0x10/0x10 [radeon]
>> [ 15.672616] do_one_initcall+0x42/0x210
>> [ 15.672622] ? __kmalloc_cache_noprof+0x89/0x230
>> [ 15.672627] do_init_module+0x60/0x210
>> [ 15.672631] init_module_from_file+0x89/0xc0
>> [ 15.672637] __x64_sys_finit_module+0x142/0x390
>> [ 15.672643] do_syscall_64+0x47/0x110
>> [ 15.672647] entry_SYSCALL_64_after_hwframe+0x76/0x7e
>> [ 15.672653] RIP: 0033:0x7f066d6b3839
>> [ 15.672657] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 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 b7 85 0d 00 f7 d8 64
>> 89 01 48
>> [ 15.672659] RSP: 002b:00007ffead344b38 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000139
>> [ 15.672663] RAX: ffffffffffffffda RBX: 00005586f29e09b0 RCX:
>> 00007f066d6b3839
>> [ 15.672665] RDX: 0000000000000000 RSI: 00005586f29d08d0 RDI:
>> 0000000000000011
>> [ 15.672667] RBP: 0000000000000000 R08: 0000000000000000 R09:
>> 00005586f29c0540
>> [ 15.672669] R10: 00007f066d78cac0 R11: 0000000000000246 R12:
>> 00005586f29d08d0
>> [ 15.672671] R13: 0000000000020000 R14: 00005586f29d82e0 R15:
>> 0000000000000000
>> [ 15.672675] </TASK>
>> [ 15.672676] Modules linked in: rtl2832_sdr videobuf2_vmalloc
>> videobuf2_memops videobuf2_v4l2 videobuf2_common videodev fc0012
>> rtl2832 i2c_mux dvb_usb_rtl28xxu dvb_usb_v2 dvb_core mc
>> snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul snd_seq_virmidi
>> radeon(+) snd_seq_midi snd_seq_midi_event snd_seq snd_emu10k1
>> drm_ttm_helper ttm snd_hda_codec_hdmi drm_suballoc_helper
>> snd_hda_intel snd_util_mem drm_display_helper snd_ac97_codec
>> snd_intel_dspcfg snd_hda_codec snd_hda_core ac97_bus snd_hwdep
>> snd_rawmidi snd_seq_device snd_pcm drm_kms_helper snd_timer
>> edac_mce_amd k10temp sha512_ssse3 sha512_generic sha256_ssse3
>> sha1_ssse3 drm aesni_intel snd gf128mul at24 crypto_simd cryptd
>> soundcore acpi_cpufreq regmap_i2c emu10k1_gp gameport pcspkr evdev
>> serio_raw i2c_algo_bit video sp5100_tco wmi button ext4
>> crc32c_generic crc16 mbcache jbd2 hid_generic usbhid hid sg sr_mod
>> cdrom sd_mod ata_generic crc32_pclmul firewire_ohci crc32c_intel
>> firewire_core ahci i2c_piix4 crc_itu_t pata_atiixp i2c_smbus r8169
>> libahci ohci_pci xhci_pci libata
>> [ 15.672761] realtek ohci_hcd ehci_pci xhci_hcd ehci_hcd
>> mdio_devres scsi_mod scsi_common libphy usbcore usb_common
>> [ 15.672773] CR2: 0000000000000050
>> [ 15.672776] ---[ end trace 0000000000000000 ]---
>
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
^ permalink raw reply [flat|nested] 10+ messages in thread
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[not found] <20240919165641.4632-1-user@am64>
[not found] ` <20240924020824.6264-1-user@am64>
2024-09-24 12:20 ` radeon ARUBA NULL pointer dereference Thomas Zimmermann
2024-09-24 12:42 ` Thomas Zimmermann
2024-09-24 14:22 ` Alex Deucher
2024-09-24 19:30 ` Ewan Milne
2024-09-25 18:13 ` Ewan Milne
2024-09-25 0:22 ` NULL pointer dereference after ib test on ring 7 succeeded Arthur Marsh
2024-09-25 8:02 ` Thomas Zimmermann
2024-09-30 15:25 ` NULL pointer dereference with kernel 6.12.0-rc1 and ARUBA GPU Arthur Marsh
2024-09-30 17:54 ` Christian König
2024-10-07 12:44 ` Thomas Zimmermann
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