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Tasklist

FS#79558 - Calling compact_memory after drop_caches causes a Kernel panic

Attached to Project: Arch Linux
Opened by Jared Johnstone (ipaq) - Monday, 04 September 2023, 06:28 GMT
Last edited by Toolybird (Toolybird) - Monday, 04 September 2023, 08:01 GMT
Task Type Bug Report
Category Packages: Core
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:


Additional info:
* package version(s)

linux 6.4.12.arch1-1

* config and/or log files etc.

NA

* link to upstream bug report, if any

None

* Steps to reproduce:

1. Be root on 6.4.12.arch1-1
2. Call `echo 3 > /proc/sys/vm/drop_caches ; echo 1 > /proc/sys/vm/compact_memory`
3. Experience a segmentation fault.

Reproducible on my 3900x desktop and i7 laptop.
This task depends upon

Closed by  Toolybird (Toolybird)
Monday, 04 September 2023, 08:01 GMT
Reason for closing:  Not a bug
Additional comments about closing:  See comments
Comment by Jared Johnstone (ipaq) - Monday, 04 September 2023, 06:30 GMT
dmesg throws:


```
[ +0.393514] echo (14573): drop_caches: 3
[ +0.137521] ------------[ cut here ]------------
[ +0.000004] kernel BUG at mm/migrate.c:656!
[ +0.000006] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ +0.000004] CPU: 13 PID: 15100 Comm: tee Tainted: P OE 6.4.12-arch1-1 #1 3e6fa2753a2d75925c34ecb78e22e85a65d083df
[ +0.000004] Hardware name: Gigabyte Technology Co., Ltd. X570 I AORUS PRO WIFI/X570 I AORUS PRO WIFI, BIOS F37b 03/23/2023
[ +0.000002] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000005] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000002] RSP: 0018:ffffbeceb1fab938 EFLAGS: 00010282
[ +0.000003] RAX: 02ffff0000008025 RBX: fffff18bc4752bc0 RCX: 0000000000000002
[ +0.000002] RDX: fffff18bc4752bc0 RSI: fffff18bca9a8ac0 RDI: ffff9e2586a2e2a0
[ +0.000002] RBP: ffff9e2586a2e2a0 R08: 0000000000000000 R09: 0000000000000000
[ +0.000002] R10: fffff18bca9a8ac8 R11: 0000000000000000 R12: fffff18bca9a8ac0
[ +0.000001] R13: 0000000000000002 R14: fffff18bc4752bc0 R15: ffffbeceb1fab9f8
[ +0.000002] FS: 00007f73fe933740(0000) GS:ffff9e2c9ed40000(0000) knlGS:0000000000000000
[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 00007fc5744a3700 CR3: 000000032343e000 CR4: 0000000000350ee0
[ +0.000002] Call Trace:
[ +0.000002] <TASK>
[ +0.000003] ? die+0x36/0x90
[ +0.000005] ? do_trap+0xda/0x100
[ +0.000002] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? do_error_trap+0x6a/0x90
[ +0.000002] ? migrate_folio_extra+0x6c/0x70
[ +0.000004] ? exc_invalid_op+0x50/0x70
[ +0.000003] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? asm_exc_invalid_op+0x1a/0x20
[ +0.000006] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000003] move_to_new_folio+0x136/0x150
[ +0.000004] migrate_pages_batch+0x937/0xd60
[ +0.000003] ? isolate_freepages_block+0x330/0x3d0
[ +0.000004] ? __pfx_compaction_free+0x10/0x10
[ +0.000005] ? __pfx_remove_migration_pte+0x10/0x10
[ +0.000004] migrate_pages+0xc61/0xde0
[ +0.000004] ? __pfx_compaction_alloc+0x10/0x10
[ +0.000002] ? __pfx_compaction_free+0x10/0x10
[ +0.000007] compact_zone+0x865/0xda0
[ +0.000004] ? wait_for_completion+0x95/0x160
[ +0.000005] compact_node+0x88/0xc0
[ +0.000004] ? __lru_add_drain_all+0x161/0x200
[ +0.000004] sysctl_compaction_handler+0x46/0x80
[ +0.000003] proc_sys_call_handler+0x1bd/0x2e0
[ +0.000004] vfs_write+0x22e/0x3f0
[ +0.000006] ksys_write+0x6f/0xf0
[ +0.000003] do_syscall_64+0x60/0x90
[ +0.000004] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? __ct_user_enter+0x2f/0xd0
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? syscall_exit_to_user_mode+0x2b/0x40
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? do_syscall_64+0x6c/0x90
[ +0.000002] ? syscall_exit_to_user_mode+0x2b/0x40
[ +0.000002] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? do_syscall_64+0x6c/0x90
[ +0.000002] ? __ct_user_enter+0x2f/0xd0
[ +0.000003] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ +0.000003] RIP: 0033:0x7f73fea3a664
[ +0.000017] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d 05 1d 14 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 48 89 54 24 18 48
[ +0.000002] RSP: 002b:00007ffff0ed5978 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ +0.000003] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f73fea3a664
[ +0.000001] RDX: 0000000000000002 RSI: 00007ffff0ed5ae0 RDI: 0000000000000003
[ +0.000002] RBP: 00007ffff0ed5ae0 R08: 0000564f4b48a470 R09: 0000000000000001
[ +0.000002] R10: 00000000000001b6 R11: 0000000000000202 R12: 0000000000000002
[ +0.000001] R13: 0000564f4b48a470 R14: 00007f73feb130e0 R15: 0000000000000001
[ +0.000005] </TASK>
[ +0.000001] Modules linked in: rfcomm snd_seq_dummy snd_seq_midi snd_hrtimer snd_seq_midi_event snd_seq cmac algif_hash algif_skcipher af_alg ip6t_REJECT nf_reject_ipv6 bnep xt_LOG nf_log_syslog xt_limit ip6table_filter ip6_tables iptable_nat ucsi_ccg nf_nat typec_ucsi xt_multiport typec xt_tcpudp roles intel_rapl_msr xt_comment xt_conntrack gigabyte_wmi wmi_bmof nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c crc32c_generic iptable_filter snd_hda_codec_realtek intel_rapl_common snd_hda_codec_generic ledtrig_audio edac_mce_amd snd_hda_codec_hdmi uvcvideo kvm_amd nvidia_drm(POE) videobuf2_vmalloc nvidia_modeset(POE) snd_hda_intel kvm uvc snd_intel_dspcfg videobuf2_memops snd_intel_sdw_acpi btusb snd_hda_codec btrtl irqbypass btbcm videobuf2_v4l2 crct10dif_pclmul crc32_pclmul nvidia_uvm(POE) crc32c_intel polyval_clmulni btintel btmtk snd_hda_core snd_usb_audio polyval_generic gf128mul snd_usbmidi_lib ghash_clmulni_intel sha512_ssse3 aesni_intel videodev sp5100_tco snd_rawmidi snd_hwdep snd_seq_device bluetooth
[ +0.000066] snd_pcm video snd_timer crypto_simd videobuf2_common snd cryptd vfat ecdh_generic fat rapl acpi_cpufreq i2c_piix4 zenpower(OE) mc soundcore ccp crc16 i2c_nvidia_gpu wmi mousedev joydev nvidia(POE) mac_hid dm_multipath sg fuse dm_mod loop bpf_preload ip_tables x_tables usbhid zfs(POE) iwlmvm zunicode(POE) zzstd(OE) zlua(OE) mac80211 zavl(POE) icp(POE) libarc4 zcommon(POE) znvpair(POE) spl(OE) iwlwifi cfg80211 nvme igb rfkill i2c_algo_bit dca nvme_core xhci_pci nvme_common xhci_pci_renesas
[ +0.000047] ---[ end trace 0000000000000000 ]---
[ +0.000001] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000003] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000002] RSP: 0018:ffffbeceb1fab938 EFLAGS: 00010282
[ +0.000002] RAX: 02ffff0000008025 RBX: fffff18bc4752bc0 RCX: 0000000000000002
[ +0.000002] RDX: fffff18bc4752bc0 RSI: fffff18bca9a8ac0 RDI: ffff9e2586a2e2a0
[ +0.000001] RBP: ffff9e2586a2e2a0 R08: 0000000000000000 R09: 0000000000000000
[ +0.000002] R10: fffff18bca9a8ac8 R11: 0000000000000000 R12: fffff18bca9a8ac0
[ +0.000001] R13: 0000000000000002 R14: fffff18bc4752bc0 R15: ffffbeceb1fab9f8
[ +0.000002] FS: 00007f73fe933740(0000) GS:ffff9e2c9ed40000(0000) knlGS:0000000000000000
[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 00007fc5744a3700 CR3: 000000032343e000 CR4: 0000000000350ee0
[ +0.086737] tee (16052): drop_caches: 3
[ +2.586721] ------------[ cut here ]------------
[ +0.000007] kernel BUG at mm/migrate.c:656!
[ +0.000006] invalid opcode: 0000 [#2] PREEMPT SMP NOPTI
[ +0.000004] CPU: 13 PID: 16065 Comm: tee Tainted: P D OE 6.4.12-arch1-1 #1 3e6fa2753a2d75925c34ecb78e22e85a65d083df
[ +0.000004] Hardware name: Gigabyte Technology Co., Ltd. X570 I AORUS PRO WIFI/X570 I AORUS PRO WIFI, BIOS F37b 03/23/2023
[ +0.000002] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000007] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000002] RSP: 0018:ffffbeceb47d79a8 EFLAGS: 00010282
[ +0.000004] RAX: 02ffff0000008027 RBX: fffff18bc5357f00 RCX: 0000000000000002
[ +0.000002] RDX: fffff18bc5357f00 RSI: fffff18bc7711080 RDI: ffff9e2645d89598
[ +0.000002] RBP: ffff9e2645d89598 R08: 0000000000000000 R09: 0000000000000000
[ +0.000002] R10: fffff18bc7711088 R11: 0000000000000000 R12: fffff18bc7711080
[ +0.000002] R13: 0000000000000002 R14: fffff18bc5357f00 R15: ffffbeceb47d7a68
[ +0.000002] FS: 00007f760e59c740(0000) GS:ffff9e2c9ed40000(0000) knlGS:0000000000000000
[ +0.000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 0000122c00614200 CR3: 00000002c4c3e000 CR4: 0000000000350ee0
[ +0.000002] Call Trace:
[ +0.000003] <TASK>
[ +0.000003] ? die+0x36/0x90
[ +0.000005] ? do_trap+0xda/0x100
[ +0.000003] ? migrate_folio_extra+0x6c/0x70
[ +0.000004] ? do_error_trap+0x6a/0x90
[ +0.000003] ? migrate_folio_extra+0x6c/0x70
[ +0.000004] ? exc_invalid_op+0x50/0x70
[ +0.000004] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? asm_exc_invalid_op+0x1a/0x20
[ +0.000007] ? migrate_folio_extra+0x6c/0x70
[ +0.000004] ? srso_return_thunk+0x5/0x10
[ +0.000003] move_to_new_folio+0x136/0x150
[ +0.000005] migrate_pages_batch+0x937/0xd60
[ +0.000004] ? isolate_freepages_block+0x330/0x3d0
[ +0.000004] ? __pfx_compaction_free+0x10/0x10
[ +0.000006] ? __pfx_remove_migration_pte+0x10/0x10
[ +0.000004] migrate_pages+0xc61/0xde0
[ +0.000004] ? __pfx_compaction_alloc+0x10/0x10
[ +0.000004] ? __pfx_compaction_free+0x10/0x10
[ +0.000008] compact_zone+0x865/0xda0
[ +0.000005] ? wait_for_completion+0x95/0x160
[ +0.000005] compact_node+0x88/0xc0
[ +0.000005] ? __lru_add_drain_all+0x161/0x200
[ +0.000005] sysctl_compaction_handler+0x46/0x80
[ +0.000003] proc_sys_call_handler+0x1bd/0x2e0
[ +0.000005] vfs_write+0x22e/0x3f0
[ +0.000007] ksys_write+0x6f/0xf0
[ +0.000003] do_syscall_64+0x60/0x90
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000003] ? syscall_exit_to_user_mode+0x2b/0x40
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000003] ? do_syscall_64+0x6c/0x90
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? srso_return_thunk+0x5/0x10
[ +0.000003] ? __ct_user_enter+0x2f/0xd0
[ +0.000003] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ +0.000004] RIP: 0033:0x7f760e6a3664
[ +0.000022] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d 05 1d 14 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 48 89 54 24 18 48
[ +0.000002] RSP: 002b:00007ffd6196d628 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ +0.000003] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f760e6a3664
[ +0.000002] RDX: 0000000000000002 RSI: 00007ffd6196d790 RDI: 0000000000000003
[ +0.000002] RBP: 00007ffd6196d790 R08: 0000563c87438470 R09: 0000000000000001
[ +0.000002] R10: 00000000000001b6 R11: 0000000000000202 R12: 0000000000000002
[ +0.000002] R13: 0000563c87438470 R14: 00007f760e77c0e0 R15: 0000000000000001
[ +0.000006] </TASK>
[ +0.000001] Modules linked in: rfcomm snd_seq_dummy snd_seq_midi snd_hrtimer snd_seq_midi_event snd_seq cmac algif_hash algif_skcipher af_alg ip6t_REJECT nf_reject_ipv6 bnep xt_LOG nf_log_syslog xt_limit ip6table_filter ip6_tables iptable_nat ucsi_ccg nf_nat typec_ucsi xt_multiport typec xt_tcpudp roles intel_rapl_msr xt_comment xt_conntrack gigabyte_wmi wmi_bmof nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c crc32c_generic iptable_filter snd_hda_codec_realtek intel_rapl_common snd_hda_codec_generic ledtrig_audio edac_mce_amd snd_hda_codec_hdmi uvcvideo kvm_amd nvidia_drm(POE) videobuf2_vmalloc nvidia_modeset(POE) snd_hda_intel kvm uvc snd_intel_dspcfg videobuf2_memops snd_intel_sdw_acpi btusb snd_hda_codec btrtl irqbypass btbcm videobuf2_v4l2 crct10dif_pclmul crc32_pclmul nvidia_uvm(POE) crc32c_intel polyval_clmulni btintel btmtk snd_hda_core snd_usb_audio polyval_generic gf128mul snd_usbmidi_lib ghash_clmulni_intel sha512_ssse3 aesni_intel videodev sp5100_tco snd_rawmidi snd_hwdep snd_seq_device bluetooth
[ +0.000076] snd_pcm video snd_timer crypto_simd videobuf2_common snd cryptd vfat ecdh_generic fat rapl acpi_cpufreq i2c_piix4 zenpower(OE) mc soundcore ccp crc16 i2c_nvidia_gpu wmi mousedev joydev nvidia(POE) mac_hid dm_multipath sg fuse dm_mod loop bpf_preload ip_tables x_tables usbhid zfs(POE) iwlmvm zunicode(POE) zzstd(OE) zlua(OE) mac80211 zavl(POE) icp(POE) libarc4 zcommon(POE) znvpair(POE) spl(OE) iwlwifi cfg80211 nvme igb rfkill i2c_algo_bit dca nvme_core xhci_pci nvme_common xhci_pci_renesas
[ +0.000176] ---[ end trace 0000000000000000 ]---
[ +0.000002] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000004] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000002] RSP: 0018:ffffbeceb1fab938 EFLAGS: 00010282
[ +0.000003] RAX: 02ffff0000008025 RBX: fffff18bc4752bc0 RCX: 0000000000000002
[ +0.000002] RDX: fffff18bc4752bc0 RSI: fffff18bca9a8ac0 RDI: ffff9e2586a2e2a0
[ +0.000002] RBP: ffff9e2586a2e2a0 R08: 0000000000000000 R09: 0000000000000000
[ +0.000002] R10: fffff18bca9a8ac8 R11: 0000000000000000 R12: fffff18bca9a8ac0
[ +0.000001] R13: 0000000000000002 R14: fffff18bc4752bc0 R15: ffffbeceb1fab9f8
[ +0.000002] FS: 00007f760e59c740(0000) GS:ffff9e2c9ed40000(0000) knlGS:0000000000000000
[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 0000122c00614200 CR3: 00000002c4c3e000 CR4: 0000000000350ee0
[Sep 4 14:03] IP6Tables OUTPUT SALT FALLBACIN= OUT=enp4s0 SRC=fe80:0000:0000:0000:5173:9d30:9134:0b47 DST=ff02:0000:0000:0000:0000:0000:0000:00fb LEN=93 TC=0 HOPLIMIT=255 FLOWLBL=497316 PROTO=UDP SPT=5353 DPT=5353 LEN=53
[ +0.160118] tee (19048): drop_caches: 3
[ +0.015509] ------------[ cut here ]------------
[ +0.000005] kernel BUG at mm/migrate.c:656!
[ +0.000006] invalid opcode: 0000 [#3] PREEMPT SMP NOPTI
[ +0.000003] CPU: 1 PID: 19058 Comm: tee Tainted: P D OE 6.4.12-arch1-1 #1 3e6fa2753a2d75925c34ecb78e22e85a65d083df
[ +0.000003] Hardware name: Gigabyte Technology Co., Ltd. X570 I AORUS PRO WIFI/X570 I AORUS PRO WIFI, BIOS F37b 03/23/2023
[ +0.000002] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000006] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000002] RSP: 0018:ffffbece9e3739a8 EFLAGS: 00010282
[ +0.000003] RAX: 02ffff0000008025 RBX: fffff18bc4634ac0 RCX: 0000000000000002
[ +0.000002] RDX: fffff18bc4634ac0 RSI: fffff18bcbcf5840 RDI: ffff9e278f30c2e8
[ +0.000001] RBP: ffff9e278f30c2e8 R08: 0000000000000000 R09: 0000000000000000
[ +0.000002] R10: fffff18bcbcf5848 R11: 0000000000000000 R12: fffff18bcbcf5840
[ +0.000001] R13: 0000000000000002 R14: fffff18bc4634ac0 R15: ffffbece9e373a68
[ +0.000002] FS: 00007fe35dd08740(0000) GS:ffff9e2c9ea40000(0000) knlGS:0000000000000000
[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 00007f01071cf068 CR3: 000000030fe36000 CR4: 0000000000350ee0
[ +0.000002] Call Trace:
[ +0.000002] <TASK>
[ +0.000002] ? die+0x36/0x90
[ +0.000005] ? do_trap+0xda/0x100
[ +0.000002] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? do_error_trap+0x6a/0x90
[ +0.000002] ? migrate_folio_extra+0x6c/0x70
[ +0.000004] ? exc_invalid_op+0x50/0x70
[ +0.000004] ? migrate_folio_extra+0x6c/0x70
[ +0.000002] ? asm_exc_invalid_op+0x1a/0x20
[ +0.000007] ? migrate_folio_extra+0x6c/0x70
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000003] move_to_new_folio+0x136/0x150
[ +0.000003] migrate_pages_batch+0x937/0xd60
[ +0.000004] ? isolate_freepages_block+0x330/0x3d0
[ +0.000004] ? __pfx_compaction_free+0x10/0x10
[ +0.000005] ? __pfx_remove_migration_pte+0x10/0x10
[ +0.000004] migrate_pages+0xc61/0xde0
[ +0.000003] ? __pfx_compaction_alloc+0x10/0x10
[ +0.000003] ? __pfx_compaction_free+0x10/0x10
[ +0.000007] compact_zone+0x865/0xda0
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000005] compact_node+0x88/0xc0
[ +0.000005] sysctl_compaction_handler+0x46/0x80
[ +0.000002] proc_sys_call_handler+0x1bd/0x2e0
[ +0.000005] vfs_write+0x22e/0x3f0
[ +0.000005] ksys_write+0x6f/0xf0
[ +0.000003] do_syscall_64+0x60/0x90
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? __ct_user_enter+0x2f/0xd0
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? syscall_exit_to_user_mode+0x2b/0x40
[ +0.000003] ? srso_return_thunk+0x5/0x10
[ +0.000002] ? do_syscall_64+0x6c/0x90
[ +0.000002] ? __ct_user_enter+0x2f/0xd0
[ +0.000003] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ +0.000003] RIP: 0033:0x7fe35de0f664
[ +0.000019] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d 05 1d 14 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 48 83 ec 28 48 89 54 24 18 48
[ +0.000002] RSP: 002b:00007ffd37d9d1c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ +0.000002] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe35de0f664
[ +0.000002] RDX: 0000000000000002 RSI: 00007ffd37d9d330 RDI: 0000000000000003
[ +0.000001] RBP: 00007ffd37d9d330 R08: 00005654baf07470 R09: 0000000000000001
[ +0.000002] R10: 00000000000001b6 R11: 0000000000000202 R12: 0000000000000002
[ +0.000001] R13: 00005654baf07470 R14: 00007fe35dee80e0 R15: 0000000000000001
[ +0.000005] </TASK>
[ +0.000001] Modules linked in: rfcomm snd_seq_dummy snd_seq_midi snd_hrtimer snd_seq_midi_event snd_seq cmac algif_hash algif_skcipher af_alg ip6t_REJECT nf_reject_ipv6 bnep xt_LOG nf_log_syslog xt_limit ip6table_filter ip6_tables iptable_nat ucsi_ccg nf_nat typec_ucsi xt_multiport typec xt_tcpudp roles intel_rapl_msr xt_comment xt_conntrack gigabyte_wmi wmi_bmof nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c crc32c_generic iptable_filter snd_hda_codec_realtek intel_rapl_common snd_hda_codec_generic ledtrig_audio edac_mce_amd snd_hda_codec_hdmi uvcvideo kvm_amd nvidia_drm(POE) videobuf2_vmalloc nvidia_modeset(POE) snd_hda_intel kvm uvc snd_intel_dspcfg videobuf2_memops snd_intel_sdw_acpi btusb snd_hda_codec btrtl irqbypass btbcm videobuf2_v4l2 crct10dif_pclmul crc32_pclmul nvidia_uvm(POE) crc32c_intel polyval_clmulni btintel btmtk snd_hda_core snd_usb_audio polyval_generic gf128mul snd_usbmidi_lib ghash_clmulni_intel sha512_ssse3 aesni_intel videodev sp5100_tco snd_rawmidi snd_hwdep snd_seq_device bluetooth
[ +0.000065] snd_pcm video snd_timer crypto_simd videobuf2_common snd cryptd vfat ecdh_generic fat rapl acpi_cpufreq i2c_piix4 zenpower(OE) mc soundcore ccp crc16 i2c_nvidia_gpu wmi mousedev joydev nvidia(POE) mac_hid dm_multipath sg fuse dm_mod loop bpf_preload ip_tables x_tables usbhid zfs(POE) iwlmvm zunicode(POE) zzstd(OE) zlua(OE) mac80211 zavl(POE) icp(POE) libarc4 zcommon(POE) znvpair(POE) spl(OE) iwlwifi cfg80211 nvme igb rfkill i2c_algo_bit dca nvme_core xhci_pci nvme_common xhci_pci_renesas
[ +0.000047] ---[ end trace 0000000000000000 ]---
[ +0.000002] RIP: 0010:migrate_folio_extra+0x6c/0x70
[ +0.000003] Code: de 48 89 ef e8 15 e2 ff ff 5b 44 89 e0 5d 41 5c 41 5d e9 07 f8 9d 00 e8 02 e2 ff ff 44 89 e0 5b 5d 41 5c 41 5d e9 f4 f7 9d 00 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f
[ +0.000001] RSP: 0018:ffffbeceb1fab938 EFLAGS: 00010282
[ +0.000003] RAX: 02ffff0000008025 RBX: fffff18bc4752bc0 RCX: 0000000000000002
[ +0.000001] RDX: fffff18bc4752bc0 RSI: fffff18bca9a8ac0 RDI: ffff9e2586a2e2a0
[ +0.000002] RBP: ffff9e2586a2e2a0 R08: 0000000000000000 R09: 0000000000000000
[ +0.000001] R10: fffff18bca9a8ac8 R11: 0000000000000000 R12: fffff18bca9a8ac0
[ +0.000002] R13: 0000000000000002 R14: fffff18bc4752bc0 R15: ffffbeceb1fab9f8
[ +0.000001] FS: 00007fe35dd08740(0000) GS:ffff9e2c9ea40000(0000) knlGS:0000000000000000
[ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ +0.000002] CR2: 00007f01071cf068 CR3: 000000030fe36000 CR4: 0000000000350ee0
```
Comment by Jared Johnstone (ipaq) - Monday, 04 September 2023, 06:31 GMT
I compiled `Linux 6.5.0-11329-g708283abf896` and booted the bzImage in a VM however was unable to reproduce the issue with it.

Compiling `Linux 6.4.0` was also unable to reproduce the effect.
Comment by Toolybird (Toolybird) - Monday, 04 September 2023, 07:52 GMT
ZFS? https://bugzilla.kernel.org/show_bug.cgi?id=217747

Comment by Jared Johnstone (ipaq) - Monday, 04 September 2023, 07:57 GMT
Ah bummer. Yeah ZFS is included in the above kernel panic and was in use for both the machines which panicked.

This can likely be closed off then. This is a ZFS issue and it looks like there's already an issue open over there: https://github.com/openzfs/zfs/issues/15140

Sorry for the trouble.

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