Bug#1110954: upon reboot, ast warns with call traces in the log
Package: src:linux
Version: 6.12.38-1
Severity: wishlist
While rebooting the machine, I noticed a (quickly disappearing) call trace on the screen. Here's what the log has to say:
Aug 12 22:32:38 AnonymPC kernel: ------------[ cut here ]------------
Aug 12 22:32:38 AnonymPC kernel: ast 0000:04:00.0: [drm] drm_WARN_ON(map->is_iomem)
Aug 12 22:32:38 AnonymPC kernel: WARNING: CPU: 3 PID: 1709 at drivers/gpu/drm/drm_gem_shmem_helper.c:322 drm_gem_shmem_vmap+0x173/0x1b0 [drm_shmem_helper]
Aug 12 22:32:38 AnonymPC kernel: Modules linked in: ccm snd_seq_dummy snd_hrtimer snd_seq snd_seq_device qrtr uinput nvidia_drm(PO) si2157 si2168 m88rs6000t drm_ttm_helper a8293 ttm nvidia_modeset(PO) intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common cx25840 skx_edac skx_edac_common nfit libnvdimm x86_pkg_temp_thermal cx23885 intel_powerclamp snd_soc_avs altera_ci coretemp snd_soc_hda_codec tda18271 kvm_intel snd_hda_ext_core altera_stapl snd_soc_core snd_hda_codec_realtek m88ds3103 kvm snd_hda_codec_generic snd_compress i2c_mux cx2341x snd_hda_scodec_component snd_hda_codec_hdmi snd_pcm_dmaengine irqbypass tveeprom nvidia(PO) crct10dif_pclmul videobuf2_dvb ghash_clmulni_intel dvb_core sha512_ssse3 videobuf2_dma_sg snd_hda_intel sha256_ssse3 binfmt_misc videobuf2_memops snd_intel_dspcfg sha1_ssse3 videobuf2_v4l2 iwlmvm snd_intel_sdw_acpi aesni_intel nls_ascii videodev snd_hda_codec mac80211 gf128mul nls_cp437 eeepc_wmi videobuf2_common snd_hda_core crypto_simd vfat libarc4 asus_wmi mc snd_hwdep cryptd
Aug 12 22:32:38 AnonymPC kernel: fat sparse_keymap snd_pcm iwlwifi acpi_ipmi rapl platform_profile snd_timer ipmi_si(+) cfg80211 intel_cstate battery usblp snd mei_me ipmi_devintf intel_uncore video intel_wmi_thunderbolt wmi_bmof rfkill pcspkr rc_core ee1004 soundcore mei ipmi_msghandler msr acpi_tad sg evdev parport_pc ppdev lp parport efi_pstore configfs nfnetlink ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 md_mod hid_generic sr_mod usbhid uas cdrom sd_mod hid usb_storage iTCO_wdt ahci intel_pmc_bxt ast libahci iTCO_vendor_support xhci_pci drm_shmem_helper nvme libata watchdog xhci_hcd igb drm_kms_helper crc32_pclmul nvme_core scsi_mod i2c_i801 usbcore ioatdma i2c_algo_bit mxm_wmi drm crc32c_intel nvme_auth i2c_smbus scsi_common usb_common dca wmi button efivarfs
Aug 12 22:32:38 AnonymPC kernel: CPU: 3 UID: 0 PID: 1709 Comm: Xorg Tainted: P O 6.12.38+deb13-amd64 #1 Debian 6.12.38-1
Aug 12 22:32:38 AnonymPC kernel: Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE
Aug 12 22:32:38 AnonymPC kernel: Hardware name: System manufacturer System Product Name/WS C422 PRO_SE, BIOS 4701 11/07/2024
Aug 12 22:32:38 AnonymPC kernel: RIP: 0010:drm_gem_shmem_vmap+0x173/0x1b0 [drm_shmem_helper]
Aug 12 22:32:38 AnonymPC kernel: Code: 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27 e8 f6 06 67 e0 48 c7 c1 a0 f7 71 c0 4c 89 e2 48 c7 c7 75 f7 71 c0 48 89 c6 e8 6d 13 e2 df <0f> 0b 48 8b 83 f0 00 00 00 48 89 ee 48 8b 38 e8 59 22 6b e0 b8 fb
Aug 12 22:32:38 AnonymPC kernel: RSP: 0018:ffffa978c823fae8 EFLAGS: 00010282
Aug 12 22:32:38 AnonymPC kernel: RAX: 0000000000000000 RBX: ffff9676032d7800 RCX: 0000000000000027
Aug 12 22:32:38 AnonymPC kernel: RDX: ffff967d7fda1748 RSI: 0000000000000001 RDI: ffff967d7fda1740
Aug 12 22:32:38 AnonymPC kernel: RBP: ffff9676032daec8 R08: 0000000000000000 R09: ffffa978c823f968
Aug 12 22:32:38 AnonymPC kernel: R10: ffffffffa20b43a8 R11: 0000000000000003 R12: ffff9676022c7f20
Aug 12 22:32:38 AnonymPC kernel: R13: ffff96760699c000 R14: ffff9676032daec8 R15: ffff9676032daec8
Aug 12 22:32:38 AnonymPC kernel: FS: 00007f2f6cd66b00(0000) GS:ffff967d7fd80000(0000) knlGS:0000000000000000
Aug 12 22:32:38 AnonymPC kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Aug 12 22:32:38 AnonymPC kernel: CR2: 0000556a7db0aa40 CR3: 0000000109116005 CR4: 00000000003726f0
Aug 12 22:32:38 AnonymPC kernel: Call Trace:
Aug 12 22:32:38 AnonymPC kernel: <TASK>
Aug 12 22:32:38 AnonymPC kernel: drm_gem_vmap+0x22/0x50 [drm]
Aug 12 22:32:38 AnonymPC kernel: drm_gem_vmap_unlocked+0x2a/0x50 [drm]
Aug 12 22:32:38 AnonymPC kernel: drm_gem_fb_vmap+0x41/0x120 [drm_kms_helper]
Aug 12 22:32:38 AnonymPC kernel: drm_atomic_helper_prepare_planes+0x17a/0x210 [drm_kms_helper]
Aug 12 22:32:38 AnonymPC kernel: drm_atomic_helper_commit+0x78/0x140 [drm_kms_helper]
Aug 12 22:32:38 AnonymPC kernel: drm_atomic_commit+0xa9/0xe0 [drm]
Aug 12 22:32:38 AnonymPC kernel: ? __pfx___drm_printfn_info+0x10/0x10 [drm]
Aug 12 22:32:38 AnonymPC kernel: drm_atomic_helper_set_config+0x74/0xb0 [drm_kms_helper]
Aug 12 22:32:38 AnonymPC kernel: drm_mode_setcrtc+0x46c/0x8a0 [drm]
Aug 12 22:32:38 AnonymPC kernel: ? __pfx_drm_mode_setcrtc+0x10/0x10 [drm]
Aug 12 22:32:38 AnonymPC kernel: drm_ioctl_kernel+0xad/0x100 [drm]
Aug 12 22:32:38 AnonymPC kernel: drm_ioctl+0x277/0x4f0 [drm]
Aug 12 22:32:38 AnonymPC kernel: ? __pfx_drm_mode_setcrtc+0x10/0x10 [drm]
Aug 12 22:32:38 AnonymPC kernel: __x64_sys_ioctl+0x94/0xd0
Aug 12 22:32:38 AnonymPC kernel: do_syscall_64+0x82/0x190
Aug 12 22:32:38 AnonymPC kernel: ? do_user_addr_fault+0x36c/0x620
Aug 12 22:32:38 AnonymPC kernel: ? clear_bhb_loop+0x40/0x90
Aug 12 22:32:38 AnonymPC kernel: ? clear_bhb_loop+0x40/0x90
Aug 12 22:32:38 AnonymPC kernel: ? clear_bhb_loop+0x40/0x90
Aug 12 22:32:38 AnonymPC kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e
Aug 12 22:32:38 AnonymPC kernel: RIP: 0033:0x7f2f6d0e78db
Aug 12 22:32:38 AnonymPC kernel: Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
Aug 12 22:32:38 AnonymPC kernel: RSP: 002b:00007ffe06c92cb0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
Aug 12 22:32:38 AnonymPC kernel: RAX: ffffffffffffffda RBX: 0000556a7dec9040 RCX: 00007f2f6d0e78db
Aug 12 22:32:38 AnonymPC kernel: RDX: 00007ffe06c92d40 RSI: 00000000c06864a2 RDI: 000000000000000e
Aug 12 22:32:38 AnonymPC kernel: RBP: 00007ffe06c92d40 R08: 0000000000000000 R09: 0000556a7dad98c0
Aug 12 22:32:38 AnonymPC kernel: R10: 0000556a7de2f318 R11: 0000000000000246 R12: 00000000c06864a2
Aug 12 22:32:38 AnonymPC kernel: R13: 000000000000000e R14: 0000556a7de399c0 R15: 0000556a7db86538
Aug 12 22:32:38 AnonymPC kernel: </TASK>
Aug 12 22:32:38 AnonymPC kernel: ---[ end trace 0000000000000000 ]---
The machine has graphic chips: NVIDIA PΛLiΤ GeForce GTX 1660 in a PCIe slot (to which a monitor is connected) and ASPEED AST2500 64MB on the motherboard (to which nothing is connected, but GNOME still tries to extend the virtual screen there, despite telling GNOME control panel that the display should be off).
Judged by the name drm_WARN_ON, this seems to be a warning. Still, the developers decided the production kernel should produce a full trace, or they didn't care about having (almost?) useless stuff in an already huge log. In both cases, they should do something about it, and there is even a chance that they need some feedback from us normal users. So here we go; feel free to forward the report to whomever it may concern.
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