Comment # 5
on bug 1204705
from Alex Debus
(In reply to Takashi Iwai from comment #3)
> Could you check whether the same bug is triggered with 6.1-rc kernel in OBS
> Kernel:HEAD?
The issue persists with 6.1.0-rc2-1.g796d87f-default
```
7:01:00 kernel: BUG: kernel NULL pointer dereference, address: 00000000000001c8
17:01:00 kernel: #PF: supervisor write access in kernel mode
17:01:00 kernel: #PF: error_code(0x0002) - not-present page
17:01:00 kernel: PGD 0 P4D 0
17:01:00 kernel: Oops: 0002 [#1] PREEMPT SMP NOPTI
17:01:00 kernel: CPU: 1 PID: 1439 Comm: rasdaemon Not tainted
6.1.0-rc2-1.g796d87f-default #1 openSUSE Tumbleweed (unreleased)
2a6c86ca26b919960b25f42a93c747e865d741cd
17:01:00 kernel: Hardware name: System manufacturer System Product Name/ROG
STRIX X570-E GAMING, BIOS 4204 02/24/2022
17:01:00 kernel: RIP: 0010:ring_buffer_wake_waiters+0x1c/0xa0
17:01:00 kernel: Code: 48 39 d0 73 ed 0f 0b eb e9 0f 1f 44 00 00 55 53 48 89 fb
83 fe ff 74 39 48 8b 47 40 48 63 f6 48 8b 1c f0 48 81 c3 78 01 00 00 <48> 83 43
50 01 31 c9 31 d2 48 8d 7b 20 be 03 00 00 00 e8 bd a7 f3
17:01:00 kernel: RSP: 0018:ffffaf16c140fe70 EFLAGS: 00010206
17:01:00 kernel: RAX: ffff9a22c45d6a00 RBX: 0000000000000178 RCX:
0000000000000001
17:01:00 kernel: RDX: ffff9a22c4d54000 RSI: 0000000000000018 RDI:
ffff9a22c45d7d00
17:01:00 kernel: RBP: 00000000000a8001 R08: ffff9a22c9c30e40 R09:
ffff9a23128df980
17:01:00 kernel: R10: 0000000000000000 R11: 0000000000000001 R12:
ffff9a23128df980
17:01:00 kernel: R13: ffff9a22e38932e0 R14: ffff9a231284ee40 R15:
0000000000000000
17:01:00 kernel: FS: 00007fbe25c5b340(0000) GS:ffff9a29cea40000(0000)
knlGS:0000000000000000
17:01:00 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
17:01:00 kernel: CR2: 00000000000001c8 CR3: 000000010501e000 CR4:
0000000000750ee0
17:01:00 kernel: PKRU: 55555554
17:01:00 kernel: Call Trace:
17:01:00 kernel: <TASK>
17:01:00 kernel: tracing_buffers_release+0x49/0x90
17:01:00 kernel: __fput+0x91/0x250
17:01:00 kernel: task_work_run+0x59/0x90
17:01:00 kernel: exit_to_user_mode_prepare+0x1cb/0x1f0
17:01:00 kernel: syscall_exit_to_user_mode+0x17/0x40
17:01:00 kernel: do_syscall_64+0x67/0x80
17:01:00 kernel: ? syscall_exit_to_user_mode+0x17/0x40
17:01:00 kernel: ? do_syscall_64+0x67/0x80
17:01:00 kernel: entry_SYSCALL_64_after_hwframe+0x63/0xcd
17:01:00 kernel: RIP: 0033:0x7fbe25e43014
17:01:00 kernel: Code: 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90
90 f3 0f 1e fa 90 90 80 3d 8d 09 0f 00 00 74 13 b8 03 00 00 00 0f 05 <48> 3d 00
f0 ff ff 77 44 c3 0f 1f 00 48 83 ec 18 89 7c 24 0c e8 51
17:01:00 kernel: RSP: 002b:00007ffda7a81408 EFLAGS: 00000202 ORIG_RAX:
0000000000000003
17:01:00 kernel: RAX: 0000000000000000 RBX: 00007ffda7a81550 RCX:
00007fbe25e43014
17:01:00 kernel: RDX: 0000000000000000 RSI: 00007ffda7a81600 RDI:
000000000000001d
17:01:00 kernel: RBP: 00007ffda7a82ad0 R08: 000055ffa06b86c0 R09:
0000000000000000
17:01:00 kernel: R10: 0000000000000008 R11: 0000000000000202 R12:
0000000000000001
17:01:00 kernel: R13: 00007ffda7a81598 R14: 000055ffa06b86c0 R15:
000055ffa06b86c0
17:01:00 kernel: </TASK>
17:01:00 kernel: Modules linked in: amd64_edac(-) dmi_sysfs pcc_cpufreq(-)
iwlmvm btusb mac80211 btrtl btbcm btintel btmtk libarc4 wacom bluetooth
snd_usb_audio snd_usbmidi_lib intel_rapl_msr snd_rawmidi r8169 snd_seq_device
realtek mc ecdh_generic iwlwifi igb mdio_devres cfg80211 libphy dca
nls_iso8859_1 nls_cp437 intel_rapl_common vfat fat snd_hda_codec_realtek
snd_hda_codec_generic asus_ec_sensors snd_hda_codec_hdmi snd_hda_intel
snd_intel_dspcfg edac_mce_amd snd_intel_sdw_acpi snd_hda_codec kvm_amd
eeepc_wmi joydev snd_hda_core asus_wmi snd_hwdep kvm irqbypass battery snd_pcm
ledtrig_audio sparse_keymap platform_profile rfkill pcspkr efi_pstore snd_timer
wmi_bmof mxm_wmi k10temp i2c_piix4 snd soundcore tiny_power_button button
acpi_cpufreq fuse configfs ip_tables x_tables hid_generic usbhid amdgpu
crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic gf128mul xhci_pci
xhci_pci_renesas drm_ttm_helper ttm xhci_hcd video iommu_v2 ghash_clmulni_intel
gpu_sched
17:01:00 kernel: sha512_ssse3 drm_buddy drm_display_helper aesni_intel cec
nvme crypto_simd cryptd usbcore ccp rc_core sp5100_tco nvme_core wmi btrfs
blake2b_generic libcrc32c crc32c_intel xor raid6_pq sg br_netfilter bridge stp
llc dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua msr efivarfs
17:01:00 kernel: CR2: 00000000000001c8
17:01:00 kernel: ---[ end trace 0000000000000000 ]---
17:01:00 kernel: RIP: 0010:ring_buffer_wake_waiters+0x1c/0xa0
17:01:00 kernel: Code: 48 39 d0 73 ed 0f 0b eb e9 0f 1f 44 00 00 55 53 48 89 fb
83 fe ff 74 39 48 8b 47 40 48 63 f6 48 8b 1c f0 48 81 c3 78 01 00 00 <48> 83 43
50 01 31 c9 31 d2 48 8d 7b 20 be 03 00 00 00 e8 bd a7 f3
17:01:00 kernel: RSP: 0018:ffffaf16c140fe70 EFLAGS: 00010206
17:01:00 kernel: RAX: ffff9a22c45d6a00 RBX: 0000000000000178 RCX:
0000000000000001
17:01:00 kernel: RDX: ffff9a22c4d54000 RSI: 0000000000000018 RDI:
ffff9a22c45d7d00
17:01:00 kernel: RBP: 00000000000a8001 R08: ffff9a22c9c30e40 R09:
ffff9a23128df980
17:01:00 kernel: R10: 0000000000000000 R11: 0000000000000001 R12:
ffff9a23128df980
17:01:00 kernel: R13: ffff9a22e38932e0 R14: ffff9a231284ee40 R15:
0000000000000000
17:01:00 kernel: FS: 00007fbe25c5b340(0000) GS:ffff9a29cea40000(0000)
knlGS:0000000000000000
17:01:00 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
17:01:00 kernel: CR2: 00000000000001c8 CR3: 000000010501e000 CR4:
0000000000750ee0
17:01:00 kernel: PKRU: 55555554
```