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5.18 requires __set_page_dirty_nobuffers -> filemap_dirty_folio change #13325

Closed satmandu closed 2 years ago

satmandu commented 2 years ago

System information

Type Version/Name
Distribution Name Ubuntu
Distribution Version 22.04
Kernel Version 5.18-rc4
Architecture x86_64
OpenZFS Version 2.1.4 w/ 5.18 patches from the 2.1.5 staging series.

Describe the problem you're observing

I'm getting filesystem related memory corruption (I suspect) which is causing kernel BUGS to be thrown during boot. I suspect they are connected to this change, since I'm seeing similar errors on two different x86_64 system (desktop and laptop) using the same kernels and the same zfs-dkms setups: https://github.com/torvalds/linux/commit/6b1f86f8e9c7f9de7ca1cb987b2cf25e99b1ae3a notes a change in 5.18-rc1:

"Primarily this series converts some of the address_space operations to
  take a folio instead of a page.

Of note also: fs: Convert trivial uses of __set_page_dirty_nobuffers to filemap_dirty_folio

I noticed a bunch of these issues on 5.18-rc4 with zfs-2.1.4 on multiple systems.

Describe how to reproduce the problem

Try to use zfs w/ 5.18-rc1.

Include any warning/errors/backtraces from the system logs

error w/ 5.18-rc2:

[   18.565421] BUG: kernel NULL pointer dereference, address: 0000000000000000
[   18.565427] #PF: supervisor instruction fetch in kernel mode
[   18.565430] #PF: error_code(0x0010) - not-present page
[   18.565431] PGD 0 P4D 0 
[   18.565435] Oops: 0010 [#1] PREEMPT SMP PTI
[   18.565438] CPU: 5 PID: 3146 Comm: tracker-miner-f Tainted: P        W  OE     5.18.0-rc2 #1
[   18.565441] Hardware name: Apple Inc. MacBookPro11,3/Mac-2BD1B31983FE1663, BIOS 432.60.3.0.0 10/27/2021
[   18.565443] RIP: 0010:0x0
[   18.565449] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   18.565450] RSP: 0000:ffff9c72dbaf7d10 EFLAGS: 00010246
[   18.565452] RAX: 0000000000000000 RBX: ffff9c72dbaf7de0 RCX: 000000006255bb9f
[   18.565454] RDX: 0000000000000000 RSI: ffffcc4785173dc0 RDI: ffff8d4359b7c680
[   18.565456] RBP: ffff9c72dbaf7d20 R08: ffff8d43557ad7d0 R09: 0000000000000000
[   18.565458] R10: 0000000000000000 R11: 0000000000000000 R12: ffffcc4785173dc0
[   18.565459] R13: ffff8d4359b7c680 R14: 0000000000000200 R15: 00000001112b2067
[   18.565461] FS:  00007f3a30fde2c0(0000) GS:ffff8d46af340000(0000) knlGS:0000000000000000
[   18.565463] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.565465] CR2: ffffffffffffffd6 CR3: 000000011b782002 CR4: 00000000001706e0
[   18.565468] Call Trace:
[   18.565469]  <TASK>
[   18.565471]  folio_mark_dirty+0x39/0x60
[   18.565478]  filemap_page_mkwrite+0x130/0x1c0
[   18.565481]  do_page_mkwrite+0x5a/0xb0
[   18.565485]  do_wp_page+0x291/0x390
[   18.565488]  __handle_mm_fault+0xc4c/0x15f0
[   18.565491]  handle_mm_fault+0xba/0x290
[   18.565494]  do_user_addr_fault+0x1be/0x670
[   18.565499]  exc_page_fault+0x76/0x170
[   18.565503]  ? asm_exc_page_fault+0x8/0x30
[   18.565507]  asm_exc_page_fault+0x1e/0x30
[   18.565510] RIP: 0033:0x7f3a33886179
[   18.565512] Code: 48 8d 7b 70 0f 1f 44 00 00 8b 30 48 83 c0 08 01 d6 01 f1 8b 70 fc 01 ce 01 f2 48 39 f8 75 ea f3 0f 6f 43 48 89 4b 70 89 53 74 <0f> 11 45 30 f3 41 0f 6f 4c 24 10 0f 11 4d 40 f3 41 0f 6f 54 24 20
[   18.565515] RSP: 002b:00007ffd1d738100 EFLAGS: 00010246
[   18.565517] RAX: 0000556bead6da78 RBX: 0000556bead6da08 RCX: 0000000006180738
[   18.565519] RDX: 0000000009db9335 RSI: 0000000006180738 RDI: 0000556bead6da78
[   18.565520] RBP: 00007f3a3018b000 R08: 0000000000000002 R09: 0000000000000000
[   18.565522] R10: 0000000000001000 R11: 0000000000000206 R12: 0000556bead6da50
[   18.565523] R13: 0000000000000002 R14: 0000000000000001 R15: 0000556bead6da08
[   18.565527]  </TASK>
[   18.565528] Modules linked in: nls_utf8 cifs cifs_arc4 cifs_md4 fscache netfs qrtr cmac algif_hash algif_skcipher af_alg bnep nls_iso8859_1 intel_rapl_msr mei_pxp mei_hdcp joydev snd_hda_codec_cirrus intel_rapl_common snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp ledtrig_audio snd_hda_codec_hdmi kvm_intel applesmc snd_hda_intel snd_intel_dspcfg kvm snd_intel_sdw_acpi btusb snd_hda_codec btrtl btbcm btintel snd_hda_core btmtk snd_hwdep bluetooth wl(POE) snd_pcm ecdh_generic ecc snd_seq_midi rapl snd_seq_midi_event snd_rawmidi input_leds efi_pstore intel_cstate snd_seq cfg80211 snd_seq_device snd_timer snd mei_me bcm5974 apple_mfi_fastcharge mei soundcore acpi_als sbs industrialio_triggered_buffer kfifo_buf industrialio apple_gmux sbshc mac_hid apple_bl sch_fq_codel coretemp ipmi_devintf ipmi_msghandler msr parport_pc ppdev lp parport ip_tables x_tables autofs4 zfs(POE) zunicode(POE) zzstd(OE) zlua(OE) zavl(POE) icp(POE) zcommon(POE) znvpair(POE) spl(OE) z3fold lz4
[   18.565591]  lz4_compress hid_apple hid_generic usbhid uas hid usb_storage i915 nouveau mxm_wmi wmi drm_buddy drm_ttm_helper i2c_algo_bit ttm drm_dp_helper cec rc_core drm_kms_helper syscopyarea sysfillrect sysimgblt crct10dif_pclmul fb_sys_fops crc32_pclmul ghash_clmulni_intel aesni_intel crypto_simd cryptd nvme i2c_i801 drm nvme_core thunderbolt i2c_smbus lpc_ich xhci_pci xhci_pci_renesas video
[   18.565620] CR2: 0000000000000000
[   18.565622] ---[ end trace 0000000000000000 ]---
[   18.580948] RIP: 0010:0x0
[   18.580956] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   18.580957] RSP: 0000:ffff9c72dbaf7d10 EFLAGS: 00010246
[   18.580961] RAX: 0000000000000000 RBX: ffff9c72dbaf7de0 RCX: 000000006255bb9f
[   18.580963] RDX: 0000000000000000 RSI: ffffcc4785173dc0 RDI: ffff8d4359b7c680
[   18.580964] RBP: ffff9c72dbaf7d20 R08: ffff8d43557ad7d0 R09: 0000000000000000
[   18.580966] R10: 0000000000000000 R11: 0000000000000000 R12: ffffcc4785173dc0
[   18.580967] R13: ffff8d4359b7c680 R14: 0000000000000200 R15: 00000001112b2067
[   18.580969] FS:  00007f3a30fde2c0(0000) GS:ffff8d46af340000(0000) knlGS:0000000000000000
[   18.580972] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.580974] CR2: ffffffffffffffd6 CR3: 000000011b782002 CR4: 00000000001706e0

with 5.18-rc1:

[   58.361307] kernel: BUG: kernel NULL pointer dereference, address: 0000000000000000
[   58.361313] kernel: #PF: supervisor instruction fetch in kernel mode
[   58.361315] kernel: #PF: error_code(0x0010) - not-present page
[   58.361317] kernel: PGD 0 P4D 0 
[   58.361320] kernel: Oops: 0010 [#1] PREEMPT SMP NOPTI
[   58.361324] kernel: CPU: 3 PID: 7720 Comm: jsvc Tainted: P        W  OE     5.18.0-051800rc1-generic #202204032230
[   58.361327] kernel: Hardware name: MSI MS-7998/C236A WORKSTATION (MS-7998), BIOS 2.A0 06/15/2018
[   58.361329] kernel: RIP: 0010:0x0
[   58.361334] kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   58.361336] kernel: RSP: 0000:ffffb1954ed23cf0 EFLAGS: 00010246
[   58.361339] kernel: RAX: 0000000000000000 RBX: ffffb1954ed23de0 RCX: 00000000624a6e18
[   58.361342] kernel: RDX: 0000000000000000 RSI: ffffed87054f76c0 RDI: ffff9f5817f0ea40
[   58.361344] kernel: RBP: ffffb1954ed23d00 R08: ffff9f62fed80000 R09: ffffed87054f76f4
[   58.361346] kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffffed87054f76c0
[   58.361348] kernel: R13: ffff9f5817f0ea40 R14: 0000000000000200 R15: 00000001593fe067
[   58.361350] kernel: FS:  00007f943bfae740(0000) GS:ffff9f62fed80000(0000) knlGS:0000000000000000
[   58.361353] kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   58.361355] kernel: CR2: ffffffffffffffd6 CR3: 000000015699c006 CR4: 00000000003706e0
[   58.361358] kernel: Call Trace:
[   58.361359] kernel:  <TASK>
[   58.361361] kernel:  folio_mark_dirty+0x36/0x60
[   58.361367] kernel:  filemap_page_mkwrite+0x130/0x1c0
[   58.361371] kernel:  do_page_mkwrite+0x57/0xb0
[   58.361376] kernel:  do_fault+0x1bb/0x2f0
[   58.361379] kernel:  handle_pte_fault+0x1c5/0x230
[   58.361382] kernel:  __handle_mm_fault+0x3cb/0x700
[   58.361386] kernel:  handle_mm_fault+0xba/0x290
[   58.361389] kernel:  do_user_addr_fault+0x1be/0x670
[   58.361394] kernel:  exc_page_fault+0x76/0x170
[   58.361397] kernel:  ? asm_exc_page_fault+0x8/0x30
[   58.361401] kernel:  asm_exc_page_fault+0x1e/0x30
[   58.361405] kernel: RIP: 0033:0x7f943c1521ca
[   58.361407] kernel: Code: c5 fe 7f 07 c5 fe 7f 47 20 c5 fe 7f 47 40 c5 fe 7f 47 60 c5 f8 77 c3 66 0f 1f 84 00 00 00 00 00 40 0f b6 c6 48 89 d1 48 89 fa <f3> aa 48 89 d0 c5 f8 77 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90
[   58.361410] kernel: RSP: 002b:00007ffee9658b78 EFLAGS: 00010206
[   58.361413] kernel: RAX: 0000000000000000 RBX: 00007f943c1f1000 RCX: 0000000000008000
[   58.361415] kernel: RDX: 00007f943c1f1000 RSI: 0000000000000000 RDI: 00007f943c1f1000
[   58.361417] kernel: RBP: 00007ffee9658ce0 R08: 0000000000000009 R09: 0000000000000000
[   58.361419] kernel: R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffee9658be0
[   58.361421] kernel: R13: 0000000000008000 R14: 0000000000000009 R15: 000055bbed2a4860
[   58.361425] kernel:  </TASK>
[   58.361426] kernel: Modules linked in: overlay binfmt_misc nls_iso8859_1 intel_rapl_msr mei_hdcp mei_pxp intel_rapl_common intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp kvm_intel kvm rapl intel_cstate intel_wmi_thunderbolt efi_pstore xfs btusb ee1004 btrtl btbcm btintel btmtk snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi bluetooth snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec ecdh_generic ecc snd_hda_core joydev input_leds snd_hwdep snd_pcm cdc_acm snd_seq_midi snd_seq_midi_event snd_rawmidi intel_pch_thermal mei_me snd_seq mei snd_seq_device snd_timer snd soundcore mac_hid acpi_pad sch_fq_codel nct6775 hwmon_vid jc42 coretemp ipmi_devintf ipmi_msghandler msr nfsd parport_pc ppdev auth_rpcgss nfs_acl lockd grace lp parport sunrpc ip_tables x_tables autofs4 zfs(POE) zunicode(POE) zzstd(OE) zlua(OE) zavl(POE) icp(POE) zcommon(POE) znvpair(POE) spl(OE) raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq
[   58.361500] kernel:  libcrc32c raid0 multipath linear hid_magicmouse hid_logitech_hidpp raid1 hid_logitech_dj mlx4_ib hid_generic ib_uverbs mlx4_en ib_core uas usbhid hid usb_storage amdgpu mxm_wmi iommu_v2 gpu_sched i2c_algo_bit drm_ttm_helper ttm drm_dp_helper cec rc_core drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops nvme i2c_i801 e1000e drm nvme_core i2c_smbus mlx4_core mpt3sas crct10dif_pclmul ahci crc32_pclmul ghash_clmulni_intel aesni_intel xhci_pci crypto_simd raid_class cryptd scsi_transport_sas libahci xhci_pci_renesas wmi video
[   58.361545] kernel: CR2: 0000000000000000
[   58.361547] kernel: ---[ end trace 0000000000000000 ]---
[   58.474004] kernel: RIP: 0010:0x0
[   58.474017] kernel: Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
[   58.474018] kernel: RSP: 0000:ffffb1954ed23cf0 EFLAGS: 00010246
[   58.474022] kernel: RAX: 0000000000000000 RBX: ffffb1954ed23de0 RCX: 00000000624a6e18
[   58.474024] kernel: RDX: 0000000000000000 RSI: ffffed87054f76c0 RDI: ffff9f5817f0ea40
[   58.474026] kernel: RBP: ffffb1954ed23d00 R08: ffff9f62fed80000 R09: ffffed87054f76f4
[   58.474028] kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffffed87054f76c0
[   58.474029] kernel: R13: ffff9f5817f0ea40 R14: 0000000000000200 R15: 00000001593fe067
[   58.474031] kernel: FS:  00007f943bfae740(0000) GS:ffff9f62fed80000(0000) knlGS:0000000000000000
[   58.474033] kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   58.474035] kernel: CR2: ffffffffffffffd6 CR3: 000000015699c006 CR4: 00000000003706e0

Another issue on 5.18-rc1:

Apr  4 00:06:24 mbp113 kernel: [    5.902647] BUG: kernel NULL pointer dereference, address: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902652] #PF: supervisor instruction fetch in kernel mode
Apr  4 00:06:24 mbp113 kernel: [    5.902654] #PF: error_code(0x0010) - not-present page
Apr  4 00:06:24 mbp113 kernel: [    5.902656] PGD 0 P4D 0 
Apr  4 00:06:24 mbp113 kernel: [    5.902659] Oops: 0010 [#1] PREEMPT SMP NOPTI
Apr  4 00:06:24 mbp113 kernel: [    5.902662] CPU: 2 PID: 854 Comm: systemd-journal Tainted: P           OE     5.18.0-051800rc1-generic #202204032230
Apr  4 00:06:24 mbp113 kernel: [    5.902664] Hardware name: Apple Inc. MacBookPro11,3/Mac-2BD1B31983FE1663, BIOS 432.60.3.0.0 10/27/2021
Apr  4 00:06:24 mbp113 kernel: [    5.902665] RIP: 0010:0x0
Apr  4 00:06:24 mbp113 kernel: [    5.902669] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Apr  4 00:06:24 mbp113 kernel: [    5.902670] RSP: 0000:ffffbae64abd7cf0 EFLAGS: 00010246
Apr  4 00:06:24 mbp113 kernel: [    5.902671] RAX: 0000000000000000 RBX: ffffbae64abd7de0 RCX: 00000000a686ae50
Apr  4 00:06:24 mbp113 kernel: [    5.902673] RDX: 0000000000000000 RSI: fffffbf9c4d7ee80 RDI: ffff9c4287bbb4a0
Apr  4 00:06:24 mbp113 kernel: [    5.902674] RBP: ffffbae64abd7d00 R08: 0000000000000000 R09: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902675] R10: 0000000000000000 R11: ffff9c4287bb1868 R12: fffffbf9c4d7ee80
Apr  4 00:06:24 mbp113 kernel: [    5.902676] R13: ffff9c4287bbb4a0 R14: 0000000000000200 R15: 00000001344e9067
Apr  4 00:06:24 mbp113 kernel: [    5.902677] FS:  00007f3366c07900(0000) GS:ffff9c45ef280000(0000) knlGS:0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902679] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr  4 00:06:24 mbp113 kernel: [    5.902681] CR2: ffffffffffffffd6 CR3: 00000001011d2005 CR4: 00000000001706e0
Apr  4 00:06:24 mbp113 kernel: [    5.902682] Call Trace:
Apr  4 00:06:24 mbp113 kernel: [    5.902684]  <TASK>
Apr  4 00:06:24 mbp113 kernel: [    5.902685]  folio_mark_dirty+0x36/0x60
Apr  4 00:06:24 mbp113 kernel: [    5.902690]  filemap_page_mkwrite+0x130/0x1c0
Apr  4 00:06:24 mbp113 kernel: [    5.902694]  do_page_mkwrite+0x57/0xb0
Apr  4 00:06:24 mbp113 kernel: [    5.902698]  do_wp_page+0x275/0x310
Apr  4 00:06:24 mbp113 kernel: [    5.902700]  handle_pte_fault+0x20b/0x230
Apr  4 00:06:24 mbp113 kernel: [    5.902702]  __handle_mm_fault+0x3cb/0x700
Apr  4 00:06:24 mbp113 kernel: [    5.902704]  handle_mm_fault+0xba/0x290
Apr  4 00:06:24 mbp113 kernel: [    5.902706]  do_user_addr_fault+0x1be/0x670
Apr  4 00:06:24 mbp113 kernel: [    5.902709]  ? do_syscall_64+0x69/0x80
Apr  4 00:06:24 mbp113 kernel: [    5.902714]  exc_page_fault+0x76/0x170
Apr  4 00:06:24 mbp113 kernel: [    5.902716]  ? asm_exc_page_fault+0x8/0x30
Apr  4 00:06:24 mbp113 kernel: [    5.902720]  asm_exc_page_fault+0x1e/0x30
Apr  4 00:06:24 mbp113 kernel: [    5.902722] RIP: 0033:0x7f33679a5eb0
Apr  4 00:06:24 mbp113 kernel: [    5.902724] Code: c0 00 00 00 48 8b 80 c0 00 00 00 48 0b 83 c8 00 00 00 74 26 48 8d 3d 9f 0e 0d 00 e8 7a a3 e7 ff f3 0f 6f 80 c0 00 00 00 31 c0 <0f> 11 45 00 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 48 8d 3d 7f 07 07
Apr  4 00:06:24 mbp113 kernel: [    5.902725] RSP: 002b:00007ffd45b15010 EFLAGS: 00010246
Apr  4 00:06:24 mbp113 kernel: [    5.902727] RAX: 0000000000000000 RBX: 00007f3366c07828 RCX: fffffffffffff000
Apr  4 00:06:24 mbp113 kernel: [    5.902728] RDX: 00007f3366c08320 RSI: a3d70a3d70a3d70b RDI: 00007f3367a76d40
Apr  4 00:06:24 mbp113 kernel: [    5.902729] RBP: 00007f3365be6028 R08: 0000000000000000 R09: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902730] R10: 00007ffd45b73080 R11: 0000000000000246 R12: 00007f3366c078e8
Apr  4 00:06:24 mbp113 kernel: [    5.902731] R13: 00000000ffffffff R14: 0000555ca88bdf90 R15: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902733]  </TASK>
Apr  4 00:06:24 mbp113 kernel: [    5.902734] Modules linked in: sch_fq_codel coretemp ipmi_devintf ipmi_msghandler msr parport_pc ppdev lp parport ip_tables x_tables autofs4 zfs(POE) zunicode(POE) zzstd(OE) zlua(OE) zavl(POE) icp(POE) zcommon(POE) znvpair(POE) spl(OE) z3fold lz4 lz4_compress ax88179_178a hid_apple usbnet uas hid_generic usbhid usb_storage hid mii i915 nouveau mxm_wmi wmi drm_buddy i2c_algo_bit drm_ttm_helper ttm drm_dp_helper cec rc_core drm_kms_helper syscopyarea sysfillrect spi_intel_platform crct10dif_pclmul crc32_pclmul sysimgblt ghash_clmulni_intel spi_intel aesni_intel crypto_simd cryptd fb_sys_fops nvme drm nvme_core i2c_i801 thunderbolt i2c_smbus lpc_ich xhci_pci xhci_pci_renesas video
Apr  4 00:06:24 mbp113 kernel: [    5.902768] CR2: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902769] ---[ end trace 0000000000000000 ]---
Apr  4 00:06:24 mbp113 kernel: [    5.902771] RIP: 0010:0x0
Apr  4 00:06:24 mbp113 kernel: [    5.902772] Code: Unable to access opcode bytes at RIP 0xffffffffffffffd6.
Apr  4 00:06:24 mbp113 kernel: [    5.902773] RSP: 0000:ffffbae64abd7cf0 EFLAGS: 00010246
Apr  4 00:06:24 mbp113 kernel: [    5.902774] RAX: 0000000000000000 RBX: ffffbae64abd7de0 RCX: 00000000a686ae50
Apr  4 00:06:24 mbp113 kernel: [    5.902776] RDX: 0000000000000000 RSI: fffffbf9c4d7ee80 RDI: ffff9c4287bbb4a0
Apr  4 00:06:24 mbp113 kernel: [    5.902777] RBP: ffffbae64abd7d00 R08: 0000000000000000 R09: 0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902777] R10: 0000000000000000 R11: ffff9c4287bb1868 R12: fffffbf9c4d7ee80
Apr  4 00:06:24 mbp113 kernel: [    5.902778] R13: ffff9c4287bbb4a0 R14: 0000000000000200 R15: 00000001344e9067
Apr  4 00:06:24 mbp113 kernel: [    5.902780] FS:  00007f3366c07900(0000) GS:ffff9c45ef280000(0000) knlGS:0000000000000000
Apr  4 00:06:24 mbp113 kernel: [    5.902781] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr  4 00:06:24 mbp113 kernel: [    5.902782] CR2: ffffffffffffffd6 CR3: 00000001011d2005 CR4: 00000000001706e0
satmandu commented 2 years ago

Current dmesg when running 5.18-rc4, using other updated 5.18 patches from the 2.1.5-staging tree. dmesg.5.18-rc4.txt