Re: Linux 6.18.19 -- amdgpu bug and a new warning

[Mario Limonciello <superm1@kernel.org>]

On 3/25/26 18:23, Cal Peake wrote:
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> 
> Hi,
> 
> A commit in 6.18.19 has introduced a bug and a new warning when doing
> amdgpu driver re-binding. In addition to the bug, the last line of the
> output below is a new warning re: the thermal alert
> 
> This bug doesn't seem to cause any show-stopping problems, but it is a bug
> and it persists into 6.18.20.
> 
> I can do a bisect if needed, but I'm hoping one of our AMD guys can more
> quickly spot what's going on :)

Are you saying it is from 6.18.18 to 6.18.19 it was introduced?  Nothing 
immediately jumps out to me.  So I would say bisect please.

> 
> 
>    amdgpu 0000:14:00.0: amdgpu: amdgpu: finishing device.
>    ------------[ cut here ]------------
>    WARNING: CPU: 1 PID: 2773 at drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c:639 amdgpu_irq_put+0xa4/0xc0 [amdgpu]
>    Modules linked in: iptable_nat nf_nat ipt_REJECT nf_reject_ipv4 xt_multiport xt_LOG nf_log_syslog xt_state xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc ipv6 nct6775 tun sg pcspkr nct6775_core nct6683 hwmon_vid edac_mce_amd uas usb_storage onboard_usb_dev joydev hid_generic usbhid hid amdgpu tpm_crb amdxcp drm_panel_backlight_quirks gpu_sched drm_buddy drm_ttm_helper snd_hda_codec_alc882 snd_hda_codec_realtek_lib ttm drm_exec intel_rapl_msr amd_atl snd_hda_codec_generic drm_suballoc_helper drm_client_lib intel_rapl_common snd_hda_codec_atihdmi snd_hda_codec_hdmi drm_display_helper cec snd_hda_intel rc_core snd_hda_codec kvm_amd snd_hda_core drm_kms_helper ee1004 wmi_bmof r8169 snd_intel_dspcfg realtek snd_intel_sdw_acpi mdio_devres kvm snd_hwdep drm of_mdio snd_pcm agpgart polyval_clmulni i2c_designware_pci fixed_phy ghash_clmulni_intel snd_timer i2c_algo_bit i2c_piix4 fwnode_mdio i2c_designware_core rapl!
>    video i2c_smbus i2c_ccgx_ucsi snd
>     libphy xhci_pci mfd_core soundcore ccp k10temp i2c_core mdio_bus igc xhci_hcd wmi gpio_amdpt tpm_tis gpio_generic tpm_tis_core evdev loop dm_snapshot dm_bufio vfio_pci vfio_pci_core vfio_iommu_type1 vfio iommufd irqbypass
>    CPU: 1 UID: 0 PID: 2773 Comm: bind-device.sh Not tainted 6.18.20 #1 PREEMPT(lazy)
>    Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./B550 Taichi, BIOS P2.00 08/05/2021
>    RIP: 0010:amdgpu_irq_put+0xa4/0xc0 [amdgpu]
>    Code: ea 48 8d 14 90 8b 12 85 d2 75 ae 5b b8 ea ff ff ff 5d 41 5c e9 a8 c9 e1 d1 89 ea 48 89 de 4c 89 e7 5b 5d 41 5c e9 9c fd ff ff <0f> 0b b8 ea ff ff ff eb a8 b8 fe ff ff ff eb a1 90 66 66 2e 0f 1f
>    RSP: 0018:ffffcf4a8777fce0 EFLAGS: 00010246
>    RAX: ffff8c634233a908 RBX: ffff8c6345564008 RCX: 0000000000000000
>    RDX: 0000000000000000 RSI: ffff8c6345564008 RDI: ffff8c6348900000
>    RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8c63455648e4
>    R10: ffffffffc14935d0 R11: ffff8c6375dd8470 R12: ffff8c6348900000
>    R13: ffff8c6345564000 R14: ffff8c6348900000 R15: 0000000000000000
>    FS:  00007f0549119740(0000) GS:ffff8c8268c28000(0000) knlGS:0000000000000000
>    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>    CR2: 000000002d3fa810 CR3: 0000000282aa9000 CR4: 0000000000f50ef0
>    PKRU: 55555554
>    Call Trace:
>     <TASK>
>     smu_smc_hw_cleanup+0x61/0x490 [amdgpu]
>     smu_hw_fini+0xef/0x180 [amdgpu]
>     amdgpu_ip_block_hw_fini+0x37/0x41 [amdgpu]
>     amdgpu_device_fini_hw+0x20d/0x284 [amdgpu]
>     amdgpu_pci_remove+0x48/0x80 [amdgpu]
>     pci_device_remove+0x46/0xb0
>     device_release_driver_internal+0x19a/0x200
>     unbind_store+0xa0/0xb0
>     kernfs_fop_write_iter+0x149/0x200
>     vfs_write+0x259/0x4b0
>     ksys_write+0x6f/0xe0
>     do_syscall_64+0x4c/0x1130
>     entry_SYSCALL_64_after_hwframe+0x76/0x7e
>    RIP: 0033:0x7f0548e98bfa
>    Code: b8 04 00 00 00 48 8b 15 ec 71 16 00 64 89 02 48 c7 c2 ff ff ff ff 48 83 c4 18 48 89 d0 c3 66 90 49 89 ca 48 8b 44 24 20 0f 05 <48> 63 d0 3d 00 f0 ff ff 77 0c 48 89 d0 48 83 c4 18 c3 0f 1f 40 00
>    RSP: 002b:00007ffeeb12b470 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
>    RAX: ffffffffffffffda RBX: 00007f0549001780 RCX: 00007f0548e98bfa
>    RDX: 000000000000000d RSI: 000000002d3fa810 RDI: 0000000000000001
>    RBP: 000000000000000d R08: 0000000000000000 R09: 0000000000000000
>    R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000d
>    R13: 000000002d3fa810 R14: 000000002d3fa810 R15: 0000000000000000
>     </TASK>
>    ---[ end trace 0000000000000000 ]---
>    amdgpu 0000:14:00.0: amdgpu: Fail to disable thermal alert!
> 
> 
> --
> Cal Peake