Hide Forgot
1. Please describe the problem: [79260.489120] BUG: kernel NULL pointer dereference, address: 0000000000000128 [79260.489123] #PF: supervisor write access in kernel mode [79260.489123] #PF: error_code(0x0002) - not-present page [79260.489124] PGD 0 P4D 0 [79260.489125] Oops: 0002 [#1] SMP NOPTI [79260.489127] CPU: 0 PID: 17315 Comm: modprobe Tainted: G E 5.7.5-200.fc32.x86_64 #1 [79260.489127] Hardware name: System manufacturer System Product Name/PRIME X570-P, BIOS 2204 06/17/2020 [79260.489173] RIP: 0010:lock_bus+0x42/0x60 [amdgpu] [79260.489174] Code: 53 be 01 00 00 00 48 8b 9f 70 bb 00 00 48 8b bf f8 f3 ff ff e8 df 8f 26 c8 85 c0 74 0d 48 c7 c7 48 bf eb c0 5b e9 3e 9e da ff <c6> 83 28 01 00 00 01 5b c3 48 c7 c7 48 bf eb c0 e9 29 9e da ff 66 [79260.489175] RSP: 0018:ffffb34445117c48 EFLAGS: 00010246 [79260.489176] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [79260.489177] RDX: ffff9d57092b2680 RSI: 000000000001629a RDI: ffff9d57981cb818 [79260.489177] RBP: ffff9d5789627058 R08: 00000000ffffffff R09: 0000000000000000 [79260.489177] R10: 0000000000000002 R11: 00000000000000f0 R12: 0000000000000000 [79260.489178] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [79260.489179] FS: 00007fe04f0b5740(0000) GS:ffff9d57aea00000(0000) knlGS:0000000000000000 [79260.489179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [79260.489180] CR2: 0000000000000128 CR3: 000000123e312000 CR4: 0000000000340ef0 [79260.489180] Call Trace: [79260.489186] i2c_smbus_xfer+0x3d/0xf0 [79260.489187] i2c_default_probe+0xf3/0x130 [79260.489189] i2c_detect.isra.0+0xfe/0x2b0 [79260.489191] ? kfree+0xa3/0x200 [79260.489193] ? kobject_uevent_env+0x11f/0x6a0 [79260.489193] ? i2c_detect.isra.0+0x2b0/0x2b0 [79260.489194] __process_new_driver+0x1b/0x20 [79260.489196] bus_for_each_dev+0x64/0x90 [79260.489197] ? 0xffffffffc13ff000 [79260.489198] i2c_register_driver+0x73/0xc0 [79260.489200] do_one_initcall+0x46/0x200 [79260.489202] ? _cond_resched+0x16/0x40 [79260.489203] ? kmem_cache_alloc_trace+0x167/0x220 [79260.489205] ? do_init_module+0x23/0x260 [79260.489206] do_init_module+0x5c/0x260 [79260.489207] __do_sys_init_module+0x14f/0x170 [79260.489208] do_syscall_64+0x5b/0xf0 [79260.489209] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [79260.489210] RIP: 0033:0x7fe04f1e540e [79260.489211] Code: 48 8b 0d 8d 0a 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 5a 0a 0c 00 f7 d8 64 89 01 48 [79260.489212] RSP: 002b:00007ffdb0489df8 EFLAGS: 00000246 ORIG_RAX: 00000000000000af [79260.489212] RAX: ffffffffffffffda RBX: 000055b7bf883ae0 RCX: 00007fe04f1e540e [79260.489213] RDX: 000055b7bd962288 RSI: 000000000000385e RDI: 000055b7bf892810 [79260.489213] RBP: 000055b7bf892810 R08: 0000000000000000 R09: 000055b7bf892860 [79260.489214] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 [79260.489214] R13: 000055b7bd962288 R14: 000055b7bf883c80 R15: 000055b7bf883c60 [79260.489216] Modules linked in: jc42(+) uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun bridge nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep rpcrdma ib_isert iscsi_target_mod ib_iser ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_umad iw_cxgb4 ib_uverbs rdma_cm iw_cm ib_cm ib_core snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi uvcvideo snd_hda_intel snd_intel_dspcfg videobuf2_vmalloc snd_hda_codec videobuf2_memops videobuf2_v4l2 btusb snd_usb_audio raid1 btrtl videobuf2_common snd_hda_core btbcm amd64_edac_mod [79260.489231] snd_usbmidi_lib btintel edac_mce_amd videodev snd_hwdep snd_seq bluetooth kvm_amd snd_rawmidi eeepc_wmi mc asus_wmi xpad kvm snd_seq_device joydev sparse_keymap snd_pcm ecdh_generic ff_memless rfkill irqbypass ecc video snd_timer wmi_bmof snd pcspkr sp5100_tco soundcore i2c_piix4 k10temp acpi_cpufreq ip_tables isofs squashfs dm_multipath amdgpu amd_iommu_v2 gpu_sched i2c_algo_bit ttm drm_kms_helper 8021q garp mrp stp llc crct10dif_pclmul crc32_pclmul drm ghash_clmulni_intel ccp hpsa r8169 scsi_transport_sas wmi pinctrl_amd uas usb_storage btrfs blake2b_generic libcrc32c crc32c_intel xor raid6_pq sunrpc be2iscsi bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi libcxgb qla4xxx iscsi_boot_sysfs iscsi_tcp libiscsi_tcp libiscsi loop fuse scsi_transport_iscsi [last unloaded: minix] [79260.489248] CR2: 0000000000000128 [79260.489249] ---[ end trace ebc75789e03eebf1 ]--- [79260.489282] RIP: 0010:lock_bus+0x42/0x60 [amdgpu] [79260.489283] Code: 53 be 01 00 00 00 48 8b 9f 70 bb 00 00 48 8b bf f8 f3 ff ff e8 df 8f 26 c8 85 c0 74 0d 48 c7 c7 48 bf eb c0 5b e9 3e 9e da ff <c6> 83 28 01 00 00 01 5b c3 48 c7 c7 48 bf eb c0 e9 29 9e da ff 66 [79260.489283] RSP: 0018:ffffb34445117c48 EFLAGS: 00010246 [79260.489284] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [79260.489284] RDX: ffff9d57092b2680 RSI: 000000000001629a RDI: ffff9d57981cb818 [79260.489285] RBP: ffff9d5789627058 R08: 00000000ffffffff R09: 0000000000000000 [79260.489285] R10: 0000000000000002 R11: 00000000000000f0 R12: 0000000000000000 [79260.489286] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [79260.489286] FS: 00007fe04f0b5740(0000) GS:ffff9d57aea00000(0000) knlGS:0000000000000000 [79260.489287] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [79260.489287] CR2: 0000000000000128 CR3: 000000123e312000 CR4: 0000000000340ef0 This happens when some i2c device driver tries to scan for devices on i2c bus. In my case it is triggered by `modprobe jc42`. Here is the fix: https://lkml.org/lkml/2020/6/25/624 2. What is the Version-Release number of the kernel: 5.7.5-200.fc32.x86_64 (from Test Day:2020-06-22 Kernel 5.7 Test Week) 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : This appeared on 5.7 mainline kernel. 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: 1. Boot kernel 5.7.* on system with Radeon VII. 2. `modprobe jc42`. 3. See `dmesg`. 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: Not tried with Rawhide kernel, but tried to build and run torvalds/linux master. Problem still occur there. 6. Are you running any modules that not shipped with directly Fedora's kernel?: No. 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag.
The GUI just hangs the moment the AMDGPU module is loaded on 5.7.7-200.fc32.x86_64. jul 09 20:48:34 localhost.localdomain boltd[840]: [0008ea78-ae9b-Core X ] authorize: finished: ok (status: authorized, flags: 2) jul 09 20:48:34 localhost.localdomain boltd[840]: [0008ea78-ae9b-Core X ] auto-auth: authorization successful jul 09 20:48:35 localhost.localdomain boltd[840]: [0008ea78-ae9b-Core X ] udev: device changed: authorized -> authorized jul 09 20:48:35 localhost.localdomain kernel: [drm] amdgpu kernel modesetting enabled. jul 09 20:48:35 localhost.localdomain kernel: CRAT table not found jul 09 20:48:35 localhost.localdomain kernel: Virtual CRAT table created for CPU jul 09 20:48:35 localhost.localdomain kernel: Parsing CRAT table with 1 nodes jul 09 20:48:35 localhost.localdomain kernel: Creating topology SYSFS entries jul 09 20:48:35 localhost.localdomain kernel: Topology: Add CPU node jul 09 20:48:35 localhost.localdomain kernel: Finished initializing topology jul 09 20:48:35 localhost.localdomain kernel: amdgpu 0000:08:00.0: enabling device (0000 -> 0003) jul 09 20:48:35 localhost.localdomain kernel: [drm] initializing kernel modesetting (NAVI14 0x1002:0x7340 0x1462:0x3822 0xC5). jul 09 20:48:35 localhost.localdomain kernel: [drm] register mmio base: 0x80000000 jul 09 20:48:35 localhost.localdomain kernel: [drm] register mmio size: 524288 jul 09 20:48:35 localhost.localdomain kernel: [drm] PCIE atomic ops is not supported jul 09 20:48:36 localhost.localdomain kernel: hrtimer: interrupt took 250582589 ns jul 09 20:48:36 localhost.localdomain kernel: [drm:amdgpu_discovery_init [amdgpu]] *ERROR* invalid ip discovery binary signature jul 09 20:48:36 localhost.localdomain kernel: amdgpu 0000:08:00.0: amdgpu_discovery_init failed jul 09 20:48:36 localhost.localdomain kernel: amdgpu 0000:08:00.0: Fatal error during GPU init jul 09 20:48:36 localhost.localdomain kernel: [drm] amdgpu: finishing device. jul 09 20:48:36 localhost.localdomain kernel: BUG: kernel NULL pointer dereference, address: 00000000000000b0 jul 09 20:48:36 localhost.localdomain kernel: #PF: supervisor read access in kernel mode jul 09 20:48:36 localhost.localdomain kernel: #PF: error_code(0x0000) - not-present page jul 09 20:48:36 localhost.localdomain kernel: PGD 0 P4D 0 jul 09 20:48:36 localhost.localdomain kernel: Oops: 0000 [#1] SMP NOPTI jul 09 20:48:36 localhost.localdomain kernel: CPU: 7 PID: 3472 Comm: systemd-udevd Not tainted 5.7.7-200.fc32.x86_64 #1 jul 09 20:48:36 localhost.localdomain kernel: Hardware name: Notebook N150CU /N150CU , BIOS 1.> jul 09 20:48:36 localhost.localdomain kernel: RIP: 0010:drm_plane_register_all+0x2d/0x60 [drm] jul 09 20:48:36 localhost.localdomain kernel: Code: 00 00 55 48 8d af d0 02 00 00 53 48 8b 87 d0 02 00 00 48 39 c5 74 32 48 8d 58 f8 eb 0d 48 8b 43 08 48 8d 58 f8 48 39> jul 09 20:48:36 localhost.localdomain kernel: RSP: 0018:ffffabe58338bbc8 EFLAGS: 00010282 jul 09 20:48:36 localhost.localdomain kernel: RAX: 0000000000000000 RBX: fffffffffffffff8 RCX: 0000000000001a73 jul 09 20:48:36 localhost.localdomain kernel: RDX: ffffffffc19b0120 RSI: fbf9c06674c9dbb4 RDI: ffff9cb17ee99800 jul 09 20:48:36 localhost.localdomain kernel: RBP: ffff9cb17ee99ad0 R08: 0000000000000000 R09: ffff9cb19d066c10 jul 09 20:48:36 localhost.localdomain kernel: R10: ffff9cb160f75f70 R11: 0000000000000000 R12: 0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: R13: 000000000000001a R14: ffff9cb160f75f70 R15: 0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: FS: 00007f3c03d0cb80(0000) GS:ffff9cb1a07c0000(0000) knlGS:0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 jul 09 20:48:36 localhost.localdomain kernel: CR2: 00000000000000b0 CR3: 000000081dab0002 CR4: 00000000003606e0 jul 09 20:48:36 localhost.localdomain kernel: Call Trace: jul 09 20:48:36 localhost.localdomain kernel: drm_modeset_register_all+0x10/0x70 [drm] jul 09 20:48:36 localhost.localdomain kernel: drm_dev_register+0x15d/0x180 [drm] jul 09 20:48:36 localhost.localdomain kernel: amdgpu_pci_probe+0x100/0x180 [amdgpu] jul 09 20:48:36 localhost.localdomain kernel: local_pci_probe+0x42/0x80 jul 09 20:48:36 localhost.localdomain kernel: ? _cond_resched+0x16/0x40 jul 09 20:48:36 localhost.localdomain kernel: pci_device_probe+0xd9/0x190 jul 09 20:48:36 localhost.localdomain kernel: really_probe+0x167/0x410 jul 09 20:48:36 localhost.localdomain kernel: driver_probe_device+0xb6/0x100 jul 09 20:48:36 localhost.localdomain kernel: device_driver_attach+0xa1/0xb0 jul 09 20:48:36 localhost.localdomain kernel: __driver_attach+0x8a/0x150 jul 09 20:48:36 localhost.localdomain kernel: ? device_driver_attach+0xb0/0xb0 jul 09 20:48:36 localhost.localdomain kernel: ? device_driver_attach+0xb0/0xb0 jul 09 20:48:36 localhost.localdomain kernel: bus_for_each_dev+0x64/0x90 jul 09 20:48:36 localhost.localdomain kernel: bus_add_driver+0x12b/0x1e0 jul 09 20:48:36 localhost.localdomain kernel: driver_register+0x8b/0xe0 jul 09 20:48:36 localhost.localdomain kernel: ? 0xffffffffc1ab2000 jul 09 20:48:36 localhost.localdomain kernel: do_one_initcall+0x46/0x200 jul 09 20:48:36 localhost.localdomain kernel: ? _cond_resched+0x16/0x40 jul 09 20:48:36 localhost.localdomain kernel: ? kmem_cache_alloc_trace+0x167/0x220 jul 09 20:48:36 localhost.localdomain kernel: ? do_init_module+0x23/0x260 jul 09 20:48:36 localhost.localdomain kernel: do_init_module+0x5c/0x260 jul 09 20:48:36 localhost.localdomain kernel: __do_sys_init_module+0x14f/0x170 jul 09 20:48:36 localhost.localdomain kernel: do_syscall_64+0x5b/0xf0 jul 09 20:48:36 localhost.localdomain kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 jul 09 20:48:36 localhost.localdomain kernel: RIP: 0033:0x7f3c04e5e40e jul 09 20:48:36 localhost.localdomain kernel: Code: 48 8b 0d 8d 0a 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00> jul 09 20:48:36 localhost.localdomain kernel: RSP: 002b:00007ffd39eb6948 EFLAGS: 00000246 ORIG_RAX: 00000000000000af jul 09 20:48:36 localhost.localdomain kernel: RAX: ffffffffffffffda RBX: 0000564ee6754490 RCX: 00007f3c04e5e40e jul 09 20:48:36 localhost.localdomain kernel: RDX: 00007f3c04ab895d RSI: 00000000009e4006 RDI: 00007f3c01105010 jul 09 20:48:36 localhost.localdomain kernel: RBP: 00007f3c01105010 R08: 0000564ee66c40c0 R09: 00000000009e4010 jul 09 20:48:36 localhost.localdomain kernel: R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: R13: 00007f3c04ab895d R14: 0000564ee6750590 R15: 0000564ee66280a0 jul 09 20:48:36 localhost.localdomain kernel: Modules linked in: amdgpu(+) amd_iommu_v2 gpu_sched ttm uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf> jul 09 20:48:36 localhost.localdomain kernel: videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc ecdh_generic rfkill ecc snd_hda_codec_hdmi> jul 09 20:48:36 localhost.localdomain kernel: CR2: 00000000000000b0 jul 09 20:48:36 localhost.localdomain kernel: ---[ end trace ed01d9c9e912db76 ]--- jul 09 20:48:36 localhost.localdomain kernel: RIP: 0010:drm_plane_register_all+0x2d/0x60 [drm] jul 09 20:48:36 localhost.localdomain kernel: Code: 00 00 55 48 8d af d0 02 00 00 53 48 8b 87 d0 02 00 00 48 39 c5 74 32 48 8d 58 f8 eb 0d 48 8b 43 08 48 8d 58 f8 48 39> jul 09 20:48:36 localhost.localdomain kernel: RSP: 0018:ffffabe58338bbc8 EFLAGS: 00010282 jul 09 20:48:36 localhost.localdomain kernel: RAX: 0000000000000000 RBX: fffffffffffffff8 RCX: 0000000000001a73 jul 09 20:48:36 localhost.localdomain kernel: RDX: ffffffffc19b0120 RSI: fbf9c06674c9dbb4 RDI: ffff9cb17ee99800 jul 09 20:48:36 localhost.localdomain kernel: RBP: ffff9cb17ee99ad0 R08: 0000000000000000 R09: ffff9cb19d066c10 jul 09 20:48:36 localhost.localdomain kernel: R10: ffff9cb160f75f70 R11: 0000000000000000 R12: 0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: R13: 000000000000001a R14: ffff9cb160f75f70 R15: 0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: FS: 00007f3c03d0cb80(0000) GS:ffff9cb1a07c0000(0000) knlGS:0000000000000000 jul 09 20:48:36 localhost.localdomain kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 jul 09 20:48:36 localhost.localdomain kernel: CR2: 00000000000000b0 CR3: 000000081dab0002 CR4: 00000000003606e0 jul 09 20:48:36 localhost.localdomain systemd-udevd[613]: Worker [3472] terminated by signal 9 (KILL) jul 09 20:48:36 localhost.localdomain systemd-udevd[613]: 0000:08:00.0: Worker [3472] failed jul 09 20:48:36 localhost.localdomain gnome-shell[1894]: Failed to hotplug secondary gpu '/dev/dri/renderD129': GDBus.Error:System.Error.ENODEV: No It used to kinda work on 5.6.18-300.fc32