Hi, I noticed a call trace (attached) when starting my machine (ThinkPad L14). This machine is new and I am still working on it's configuration but visually noticeable is that scrolling in xterms with SHIFT-PgUp/PgDn is broken. Using the mouse wheel works. It seems the call trace has been introduced between 5.8 and 5.9-rc1 and I tried to bisect this but always end in situations where I dont't find a bootable commit around the current bisect position. Mainly the machine then hangs when udevd is started. Please let me know if I can help with further information. Dirk = lspci -vk ============================================================ 06:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Renoir (rev c3) (prog-if 00 [VGA controller]) Subsystem: Lenovo Renoir Flags: bus master, fast devsel, latency 0, IRQ 64 Memory at 460000000 (64-bit, prefetchable) [size=256M] Memory at 470000000 (64-bit, prefetchable) [size=2M] I/O ports at 1000 [size=256] Memory at fd300000 (32-bit, non-prefetchable) [size=512K] Capabilities: [48] Vendor Specific Information: Len=08 <?> Capabilities: [50] Power Management version 3 Capabilities: [64] Express Legacy Endpoint, MSI 00 Capabilities: [a0] MSI: Enable- Count=1/4 Maskable- 64bit+ Capabilities: [c0] MSI-X: Enable+ Count=4 Masked- Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?> Capabilities: [270] Secondary PCI Express Capabilities: [2b0] Address Translation Service (ATS) Capabilities: [2c0] Page Request Interface (PRI) Capabilities: [2d0] Process Address Space ID (PASID) Capabilities: [400] Data Link Feature <?> Capabilities: [410] Physical Layer 16.0 GT/s <?> Capabilities: [440] Lane Margining at the Receiver <?> Kernel driver in use: amdgpu Kernel modules: amdgpu = call trace =========================================================== [ 5.181468] amdgpu 0000:06:00.0: amdgpu: SMU is initialized successfully! [ 5.182857] [drm] kiq ring mec 2 pipe 1 q 0 [ 5.183374] ------------[ cut here ]------------ [ 5.183448] WARNING: CPU: 1 PID: 684 at drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn21/rn_clk_mgr.c:716 rn_clk_mgr_construct+0x242/0x389 [amdgpu] [ 5.183449] Modules linked in: btusb btrtl btbcm btintel bluetooth ecdh_generic ecc iwlmvm mac80211 libarc4 wmi_bmof crct10dif_pclmul snd_hda_codec_realtek crc32c_intel iwlwifi snd_hda_codec_generic amdgpu(+) tpm_crb snd_hda_codec_hdmi gpu_sched i2c_algo_bit ttm sdhci_pci aesni_intel drm_kms_helper cqhci sdhci ccp syscopyarea snd_hda_intel sysfillrect tpm_tis snd_intel_dspcfg sysimgblt xhci_pci tpm_tis_core fb_sys_fops r8169 snd_hda_codec mmc_core snd_hda_core xhci_hcd thinkpad_acpi cfg80211 realtek drm snd_pcm rng_core mdio_devres sha1_generic snd_timer nvram libphy i2c_piix4 snd k10temp soundcore ledtrig_audio rfkill tpm hw mon wmi battery ac video backlight pinctrl_amd acpi_cpufreq button efivarfs [ 5.183470] CPU: 1 PID: 684 Comm: udevd Not tainted 5.9.0-rc6-x86_64+ #170 [ 5.183471] Hardware name: LENOVO 20U50008GE/20U50008GE, BIOS R19ET26W (1.10 ) 06/22/2020 [ 5.183531] RIP: 0010:rn_clk_mgr_construct+0x242/0x389 [amdgpu] [ 5.183533] Code: 30 4d 85 c9 74 26 ba 03 00 00 00 83 bc d4 a8 00 00 00 00 89 d6 74 0a 83 bc d4 ac 00 00 00 00 75 40 48 ff ca 48 83 fa ff 75 e1 <0f> 0b 83 7 b 20 01 0f 84 13 01 00 00 81 bd e8 00 00 00 ff 14 37 00 [ 5.183533] RSP: 0018:ffffc9000111f798 EFLAGS: 00010246 [ 5.183534] RAX: ffff8883fc1d8e00 RBX: ffff8883f925c9c0 RCX: 0000000000000000 [ 5.183535] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: ffff8883f8da70c8 [ 5.183535] RBP: ffff8883fe8da000 R08: 0000000000000000 R09: ffff8883f724fc00 [ 5.183535] R10: 7fc9117fffffffff R11: ffff8883f925c9c0 R12: ffff8883f925c900 [ 5.183536] R13: ffff8883f5980000 R14: 0000000000000000 R15: 0000000000000001 [ 5.183537] FS: 00007f9e31a83d80(0000) GS:ffff88840ec40000(0000) knlGS:0000000000000000 [ 5.183537] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.183538] CR2: 000055fdf9ec5568 CR3: 00000003fb2b6000 CR4: 0000000000350ee0 [ 5.183538] Call Trace: [ 5.183595] dc_clk_mgr_create+0x135/0x18b [amdgpu] [ 5.183651] dc_create+0x238/0x5e3 [amdgpu] [ 5.183708] amdgpu_dm_init+0x167/0x1101 [amdgpu] [ 5.183762] dm_hw_init+0xa/0x17 [amdgpu] [ 5.183805] amdgpu_device_init+0x1566/0x1853 [amdgpu] [ 5.183811] ? __kmalloc+0xad/0xbf [ 5.183852] ? amdgpu_driver_load_kms+0x1c/0x17f [amdgpu] [ 5.183892] amdgpu_driver_load_kms+0x41/0x17f [amdgpu] [ 5.183959] amdgpu_pci_probe+0x139/0x1c0 [amdgpu] [ 5.183967] pci_device_probe+0xc6/0x135 [ 5.183971] really_probe+0x157/0x32a [ 5.183974] driver_probe_device+0x63/0x97 [ 5.183976] device_driver_attach+0x37/0x50 [ 5.183978] __driver_attach+0x92/0x9a [ 5.183980] ? device_driver_attach+0x50/0x50 [ 5.183983] bus_for_each_dev+0x70/0xa6 [ 5.183986] bus_add_driver+0x103/0x1b4 [ 5.183988] driver_register+0x99/0xd2 [ 5.183990] ? 0xffffffffa0b2f000 [ 5.183993] do_one_initcall+0x8a/0x195 [ 5.183997] ? kmem_cache_alloc_trace+0x80/0x8f [ 5.184002] do_init_module+0x56/0x1e8 [ 5.184005] load_module+0x1c2c/0x2139 [ 5.184010] ? __do_sys_finit_module+0x8f/0xb6 [ 5.184012] __do_sys_finit_module+0x8f/0xb6 [ 5.184017] do_syscall_64+0x5d/0x6a [ 5.184021] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 5.184023] RIP: 0033:0x7f9e31b93919 [ 5.184026] Code: 00 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 47 05 0c 00 f7 d8 64 89 01 48 [ 5.184028] RSP: 002b:00007fff315a0fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 5.184030] RAX: ffffffffffffffda RBX: 000055fdf9eebde0 RCX: 00007f9e31b93919 [ 5.184031] RDX: 0000000000000000 RSI: 00007f9e31c6a91d RDI: 0000000000000013 [ 5.184032] RBP: 0000000000020000 R08: 0000000000000000 R09: 00007fff315a1110 [ 5.184033] R10: 0000000000000013 R11: 0000000000000246 R12: 00007f9e31c6a91d [ 5.184034] R13: 0000000000000000 R14: 000055fdf9ed8060 R15: 000055fdf9eebde0 [ 5.184037] ---[ end trace a782862b8da91b8d ]--- _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx