Scx warn / error on pre login load

random-user · November 26, 2024, 9:47pm

Hi,

There is an error that seems to repeat for different CPU cores.

kernel: ------------[ cut here ]------------
kernel: rq->balance_callback && rq->balance_callback != &balance_push_callback
kernel: WARNING: CPU: 5 PID: 2337 at kernel/sched/sched.h:1730 sched_balance_update_blocked_averages+0x5d1/0x600
kernel: Modules linked in: vfat fat intel_rapl_msr amd_atl intel_rapl_common snd_hda_codec_realtek kvm_amd snd_hda_scodec_component snd_hda_codec_generic kvm snd_hda_intel snd_usb_audio snd_intel_dspcfg crct10dif_pclmul crc32_pclmul snd_intel_sdw_acpi polyval_clmulni snd_usbmidi_lib polyval_generic snd_hda_codec snd_ump ghash_clmulni_intel eeepc_wmi ee1004 snd_rawmidi sha512_ssse3 snd_hda_core asus_wmi sha1_ssse3 snd_seq_device snd_hwdep asus_ec_sensors aesni_intel platform_profile i8042 gf128mul snd_pcm sparse_keymap crypto_simd serio cryptd snd_timer rfkill rapl wmi_bmof i2c_piix4 pcspkr snd k10temp i2c_smbus soundcore igc ccp mc ptp pps_core joydev mousedev leetmouse(OE) mac_hid pkcs8_key_parser ntsync(OE) crypto_user dm_mod loop nfnetlink zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel sha256_ssse3 nvme nvme_core nvme_auth hid_cmedia nvidia_drm(OE) drm_ttm_helper ttm nvidia_uvm(OE) hid_generic nvidia_modeset(OE) usbhid
kernel:  video mxm_wmi wmi nvidia(OE)
kernel: CPU: 5 UID: 0 PID: 2337 Comm: sugov:5 Tainted: G        W  OE      6.12.1-2-cachyos #1 2d3b28d53a0e826fba3f3f9fa92a6e2e3d10de0e
kernel: Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
kernel: Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
kernel: Sched_ext: lavd (enabling+all)
kernel: RIP: 0010:sched_balance_update_blocked_averages+0x5d1/0x600
kernel: Code: 5d 41 5e 41 5f 5d e9 a9 63 1b 01 cc b0 01 89 44 24 08 e9 f3 fa ff ff c6 05 1d cc 0c 02 01 48 c7 c7 a5 ff 2d 9a e8 4f 94 f9 ff <0f> 0b e9 90 fa ff ff c6 05 ef cb 0c 02 01 48 89 fb 48 c7 c7 a5 8c
kernel: RSP: 0018:ffffa8dae1d8fa20 EFLAGS: 00010046
kernel: RAX: fd273ec7e2ced800 RBX: ffff9d754ec80000 RCX: 0000000000000027
kernel: RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff9d754eca1948
kernel: RBP: ffffa8dae1d8fbe8 R08: 0000000000000fff R09: ffffffff9ac5aad0
kernel: R10: 0000000000002ffd R11: 0000000000000004 R12: 00000000fffb8868
kernel: R13: 0000000183bd4492 R14: ffff9d754ecb66c0 R15: 0000000000000005
kernel: FS:  0000000000000000(0000) GS:ffff9d754ec80000(0000) knlGS:0000000000000000
kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000055fdec9a8000 CR3: 000000010ed02000 CR4: 0000000000f50ef0
kernel: PKRU: 55555554
kernel: Call Trace:
kernel:  <TASK>
kernel:  ? __warn+0xd5/0x1d0
kernel:  ? sched_balance_update_blocked_averages+0x5d1/0x600
kernel:  ? report_bug+0x144/0x1f0
kernel:  ? sched_balance_update_blocked_averages+0x5d1/0x600
kernel:  ? handle_bug+0x6a/0x90
kernel:  ? exc_invalid_op+0x1a/0x50
kernel:  ? asm_exc_invalid_op+0x1a/0x20
kernel:  ? sched_balance_update_blocked_averages+0x5d1/0x600
kernel:  ? __schedule+0x5e9/0x1410
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  ? handle_bug+0x6a/0x90
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  sched_balance_newidle+0xed/0x3b0
kernel:  balance_fair.llvm.15703019331774720347+0x25/0x40
kernel:  __pick_next_task+0x97/0x2a0
kernel:  __schedule+0x269/0x1410
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  ? ktime_get+0x54/0xe0
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  schedule+0x6e/0xf0
kernel:  schedule_hrtimeout_range_clock+0xe6/0x180
kernel:  ? __pfx_hrtimer_wakeup+0x10/0x10
kernel:  usleep_range_state+0x77/0xb0
kernel:  check_pcc_chan+0x7e/0x110
kernel:  send_pcc_cmd+0x17b/0x280
kernel:  cppc_set_perf+0x22c/0x340
kernel:  shmem_update_perf+0x38/0x60
kernel:  amd_pstate_update+0x110/0x330
kernel:  ? cpufreq_freq_transition_begin+0x137/0x170
kernel:  ? srso_alias_return_thunk+0x5/0xfbef5
kernel:  ? __wake_up+0x93/0xb0
kernel:  amd_pstate_update_freq+0x183/0x1d0
kernel:  ? __pfx_sugov_work+0x10/0x10
kernel:  sugov_work+0x4a/0x60
kernel:  kthread_worker_fn+0xee/0x240
kernel:  ? __pfx_kthread_worker_fn+0x10/0x10
kernel:  kthread+0x14d/0x170
kernel:  ? __pfx_kthread+0x10/0x10
kernel:  ret_from_fork+0x3a/0x50
kernel:  ? __pfx_kthread+0x10/0x10
kernel:  ret_from_fork_asm+0x1a/0x30
kernel:  </TASK>
kernel: ---[ end trace 0000000000000000 ]---

# List of scx_schedulers: scx_bpfland scx_central scx_flash scx_lavd scx_layered scx_nest scx_qmap scx_rlfifo scx_rustland scx_rusty scx_simple scx_userland
SCX_SCHEDULER=scx_lavd --performance --no-core-compaction

# Set custom flags for each scheduler, below is an example of how to use
#SCX_FLAGS='-k -m performance'

nov 26 18:37:59 desktop-pc systemd[1]: Started Start scx_scheduler.
nov 26 18:37:59 desktop-pc bash[2267]: 21:37:59 [INFO] scx_lavd scheduler is initialized (build ID: 1.0.6-g607dfab-dirty x86_64-unknown-linux-gnu)
nov 26 18:37:59 desktop-pc bash[2267]: 21:37:59 [INFO] scx_lavd scheduler starts running.

System are fully updated to this date.

naim · November 27, 2024, 2:35am

If I understand this correctly, this seems to happen during boot?

random-user · November 27, 2024, 3:13am

Yes. I didnt confirm, but I also saw a similar quickly distinct message when leaving the os for a reboot or shutdown.

naim · November 27, 2024, 5:10am

I have been getting this too, I’ll forward this to the scx devs and follow up with you once I get a response.

random-user · December 1, 2024, 1:34am

Dont worry about it. I’ve been trying KDE, first install, it triggered the error, I dont see it now on the second. But what I reported was from gnome.

If I am not mistaken what triggered it was some sort of bad reboot / shutdown or crash. I wasnt paying too much attention, so not entirely sure that’s what it was.

random-user · December 2, 2024, 10:02pm

Just started on the recent KDE install.

[    6.757205] sched_ext: "lavd" does not implement cgroup cpu.weight
[    6.758198] NOHZ tick-stop error: local softirq work is pending, handler #200!!!
[    6.758296] NOHZ tick-stop error: local softirq work is pending, handler #280!!!
[    6.758304] NOHZ tick-stop error: local softirq work is pending, handler #200!!!
[    6.758527] ------------[ cut here ]------------
[    6.758530] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.758533] WARNING: CPU: 4 PID: 2318 at kernel/sched/sched.h:1730 __schedule+0x5e9/0x1410
[    6.758540] Modules linked in: vfat fat amd_atl intel_rapl_msr intel_rapl_common snd_hda_codec_realtek kvm_amd snd_hda_scodec_component snd_hda_codec_generic kvm snd_hda_intel crct10dif_pclmul crc32_pclmul snd_intel_dspcfg polyval_clmulni snd_usb_audio snd_intel_sdw_acpi polyval_generic ghash_clmulni_intel snd_hda_codec eeepc_wmi snd_usbmidi_lib sha512_ssse3 asus_wmi sha1_ssse3 snd_ump snd_hda_core aesni_intel platform_profile snd_rawmidi ee1004 i8042 gf128mul asus_ec_sensors crypto_simd snd_hwdep snd_seq_device sparse_keymap cryptd serio snd_pcm rapl rfkill wmi_bmof pcspkr snd_timer k10temp snd igc i2c_piix4 mousedev i2c_smbus joydev soundcore ccp ptp mc leetmouse(OE) pps_core mac_hid pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth nvidia_drm(OE) drm_ttm_helper ttm nvidia_uvm(OE) hid_cmedia hid_generic usbhid
[    6.758629]  nvidia_modeset(OE) mxm_wmi video wmi nvidia(OE)
[    6.758636] CPU: 4 UID: 0 PID: 2318 Comm: sugov:4 Tainted: G           OE      6.12.1-2-cachyos #1 2d3b28d53a0e826fba3f3f9fa92a6e2e3d10de0e
[    6.758641] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.758642] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.758644] Sched_ext: lavd (enabling+all)
[    6.758645] RIP: 0010:__schedule+0x5e9/0x1410
[    6.758648] Code: 48 81 c4 90 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 76 ed 2f 00 cc c6 05 d3 55 21 01 01 48 c7 c7 a5 ff 2d 9d e8 27 1e 0e ff <0f> 0b 41 8b 86 38 0c 00 00 e9 0c fb ff ff 48 89 df e8 c1 59 13 ff
[    6.758650] RSP: 0018:ffffb6afe1b6fb30 EFLAGS: 00010046
[    6.758653] RAX: 9e5a9b53970d3600 RBX: ffff96f112d7d1c0 RCX: 0000000000000027
[    6.758655] RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff96f7cec21948
[    6.758657] RBP: ffffb6afe1b6fbe8 R08: 0000000000000fff R09: ffffffff9dc5aad0
[    6.758659] R10: 0000000000002ffd R11: 0000000000000004 R12: ffff96f112d7d1c0
[    6.758660] R13: ffffb6afc0850000 R14: ffff96f7cec366c0 R15: 0000000000000000
[    6.758662] FS:  0000000000000000(0000) GS:ffff96f7cec00000(0000) knlGS:0000000000000000
[    6.758664] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.758666] CR2: 0000719292dcf0a0 CR3: 000000010520e000 CR4: 0000000000f50ef0
[    6.758668] PKRU: 55555554
[    6.758670] Call Trace:
[    6.758671]  <TASK>
[    6.758674]  ? __warn+0xd5/0x1d0
[    6.758677]  ? __schedule+0x5e9/0x1410
[    6.758681]  ? report_bug+0x144/0x1f0
[    6.758684]  ? __schedule+0x5e9/0x1410
[    6.758687]  ? handle_bug+0x6a/0x90
[    6.758690]  ? exc_invalid_op+0x1a/0x50
[    6.758693]  ? asm_exc_invalid_op+0x1a/0x20
[    6.758698]  ? __schedule+0x5e9/0x1410
[    6.758701]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758704]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758706]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758709]  ? ktime_get+0x54/0xe0
[    6.758712]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758715]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758718]  schedule+0x6e/0xf0
[    6.758721]  schedule_hrtimeout_range_clock+0xe6/0x180
[    6.758724]  ? __pfx_hrtimer_wakeup+0x10/0x10
[    6.758728]  usleep_range_state+0x77/0xb0
[    6.758732]  check_pcc_chan+0x7e/0x110
[    6.758737]  send_pcc_cmd+0x17b/0x280
[    6.758740]  cppc_set_perf+0x22c/0x340
[    6.758744]  shmem_update_perf+0x38/0x60
[    6.758748]  amd_pstate_update+0x110/0x330
[    6.758751]  ? cpufreq_freq_transition_begin+0x137/0x170
[    6.758754]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.758756]  ? __wake_up+0x93/0xb0
[    6.758760]  amd_pstate_update_freq+0x183/0x1d0
[    6.758764]  ? __pfx_sugov_work+0x10/0x10
[    6.758767]  sugov_work+0x4a/0x60
[    6.758771]  kthread_worker_fn+0xee/0x240
[    6.758774]  ? __pfx_kthread_worker_fn+0x10/0x10
[    6.758777]  kthread+0x14d/0x170
[    6.758780]  ? __pfx_kthread+0x10/0x10
[    6.758783]  ret_from_fork+0x3a/0x50
[    6.758786]  ? __pfx_kthread+0x10/0x10
[    6.758789]  ret_from_fork_asm+0x1a/0x30
[    6.758795]  </TASK>
[    6.758796] ---[ end trace 0000000000000000 ]---
[    6.758830] sched_ext: BPF scheduler "lavd" enabled
[    6.766187] sched_ext: kworker/2:2[240] has zero slice in pick_task_scx()

random-user · December 26, 2024, 3:46pm

[    6.615204] ------------[ cut here ]------------
[    6.615205] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.615208] WARNING: CPU: 2 PID: 0 at kernel/sched/sched.h:1730 __schedule+0x1130/0x1c90
[    6.615214] Modules linked in: nf_tables vfat fat intel_rapl_msr amd_atl intel_rapl_common kvm_amd snd_hda_codec_realtek snd_hda_scodec_component kvm snd_hda_codec_generic crct10dif_pclmul crc32_pclmul polyval_clmulni snd_hda_intel polyval_generic ghash_clmulni_intel snd_intel_dspcfg eeepc_wmi snd_usb_audio snd_intel_sdw_acpi sha512_ssse3 sha1_ssse3 asus_wmi snd_hda_codec aesni_intel snd_usbmidi_lib ee1004 platform_profile gf128mul snd_ump asus_ec_sensors snd_hda_core i8042 crypto_simd snd_rawmidi sparse_keymap snd_hwdep snd_seq_device cryptd serio rapl rfkill snd_pcm wmi_bmof pcspkr k10temp snd_timer i2c_piix4 snd i2c_smbus soundcore ccp mc igc mousedev ptp joydev pps_core leetmouse(OE) mac_hid tcp_bbr pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink lz4 zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth nvidia_drm(OE) drm_ttm_helper ttm hid_cmedia nvidia_uvm(OE)
[    6.615294]  nvidia_modeset(OE) hid_generic mxm_wmi video wmi usbhid nvidia(OE)
[    6.615302] CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Tainted: G           OE      6.12.6-2-cachyos #1 c963cd2b82aa9cdd05160d5f7838a69b51110706
[    6.615307] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.615308] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.615310] Sched_ext: lavd (enabling+all)
[    6.615311] RIP: 0010:__schedule+0x1130/0x1c90
[    6.615314] Code: 90 56 65 94 0f 84 e1 ef ff ff f6 05 4a 78 3d 01 01 0f 85 d4 ef ff ff c6 05 3d 78 3d 01 01 48 c7 c7 8b a3 cd 93 e8 90 24 0e ff <0f> 0b 41 8b 86 38 0c 00 00 e9 b3 ef ff ff e8 bd 8c ff ff 65 ff 0d
[    6.615316] RSP: 0018:ffffb23e4019fe28 EFLAGS: 00010046
[    6.615319] RAX: e9cdb54dc06b0200 RBX: ffffa02e00a93680 RCX: 0000000000000027
[    6.615320] RDX: ffffb23e4019fc90 RSI: 00000000ffffefff RDI: ffffa0350eb21948
[    6.615322] RBP: ffffb23e4019fee0 R08: 0000000000000000 R09: ffffffff9465a840
[    6.615323] R10: 0000000000002ffd R11: 0000000000000004 R12: 0000000000000000
[    6.615325] R13: ffffa02e00a93680 R14: ffffa0350eb366c0 R15: 00000000ffffffff
[    6.615327] FS:  0000000000000000(0000) GS:ffffa0350eb00000(0000) knlGS:0000000000000000
[    6.615329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.615331] CR2: 00007cb2b7100008 CR3: 000000012222a000 CR4: 0000000000f50ef0
[    6.615333] PKRU: 55555554
[    6.615334] Call Trace:
[    6.615336]  <TASK>
[    6.615338]  ? __warn+0xd5/0x1d0
[    6.615341]  ? __schedule+0x1130/0x1c90
[    6.615345]  ? report_bug+0x144/0x1f0
[    6.615348]  ? __schedule+0x1130/0x1c90
[    6.615350]  ? handle_bug+0x6a/0x90
[    6.615353]  ? exc_invalid_op+0x1a/0x50
[    6.615356]  ? asm_exc_invalid_op+0x1a/0x20
[    6.615361]  ? __schedule+0x1130/0x1c90
[    6.615363]  ? __schedule+0x1130/0x1c90
[    6.615366]  ? pv_native_safe_halt+0x13/0x20
[    6.615369]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615372]  ? ct_kernel_enter+0x2e/0x90
[    6.615374]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615376]  ? local_clock_noinstr+0xc/0xc0
[    6.615380]  schedule_idle+0x23/0x40
[    6.615382]  cpu_startup_entry+0x1c2/0x250
[    6.615386]  start_secondary+0x9e/0xa0
[    6.615389]  common_startup_64+0x13e/0x140
[    6.615395]  </TASK>
[    6.615396] ---[ end trace 0000000000000000 ]---
[    6.615398] ------------[ cut here ]------------
[    6.615401] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.615403] WARNING: CPU: 6 PID: 2269 at kernel/sched/sched.h:1730 scx_ops_bypass+0x178/0x240
[    6.615408] Modules linked in: nf_tables vfat fat intel_rapl_msr amd_atl intel_rapl_common kvm_amd snd_hda_codec_realtek snd_hda_scodec_component kvm snd_hda_codec_generic crct10dif_pclmul crc32_pclmul polyval_clmulni snd_hda_intel polyval_generic ghash_clmulni_intel snd_intel_dspcfg eeepc_wmi snd_usb_audio snd_intel_sdw_acpi sha512_ssse3 sha1_ssse3 asus_wmi snd_hda_codec aesni_intel snd_usbmidi_lib ee1004 platform_profile gf128mul snd_ump asus_ec_sensors snd_hda_core i8042 crypto_simd snd_rawmidi sparse_keymap snd_hwdep snd_seq_device cryptd serio rapl rfkill snd_pcm wmi_bmof pcspkr k10temp snd_timer i2c_piix4 snd i2c_smbus soundcore ccp mc igc mousedev ptp joydev pps_core leetmouse(OE) mac_hid tcp_bbr pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink lz4 zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth nvidia_drm(OE) drm_ttm_helper ttm hid_cmedia nvidia_uvm(OE)
[    6.615482]  nvidia_modeset(OE) hid_generic mxm_wmi video wmi usbhid nvidia(OE)
[    6.615490] CPU: 6 UID: 0 PID: 2269 Comm: scx_lavd Tainted: G        W  OE      6.12.6-2-cachyos #1 c963cd2b82aa9cdd05160d5f7838a69b51110706
[    6.615494] Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.615495] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.615497] Sched_ext: lavd (enabling+all), task: runnable_at=+0ms
[    6.615498] RIP: 0010:scx_ops_bypass+0x178/0x240
[    6.615501] Code: eb 42 0f 1f 44 00 00 4c 89 ef e8 c3 fd d1 00 49 ff c4 e9 5b ff ff ff c6 05 9d dc 0e 02 01 48 c7 c7 8b a3 cd 93 e8 b8 88 df ff <0f> 0b eb a5 0f 0b 41 8b 85 6c 0a 00 00 eb a9 0f 0b 41 8b 85 6c 0a
[    6.615503] RSP: 0018:ffffb23e619479e8 EFLAGS: 00010046
[    6.615506] RAX: 3730614603e1d700 RBX: 0000000000000000 RCX: 0000000000000027
[    6.615507] RDX: ffffb23e61947850 RSI: 00000000ffffefff RDI: ffffa0350ed21948
[    6.615509] RBP: ffffa0350eb00000 R08: 0000000000000000 R09: ffffffff9465a840
[    6.615511] R10: 0000000000002ffd R11: 0000000000000004 R12: 0000000000000002
[    6.615512] R13: ffffa0350eb366c0 R14: 0000000000000286 R15: ffffb23e619479f0
[    6.615514] FS:  0000703f64c53880(0000) GS:ffffa0350ed00000(0000) knlGS:0000000000000000
[    6.615516] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.615517] CR2: 00005b2a1d0d23d0 CR3: 000000011089a000 CR4: 0000000000f50ef0
[    6.615519] PKRU: 55555554
[    6.615520] Call Trace:
[    6.615522]  <TASK>
[    6.615524]  ? __warn+0xd5/0x1d0
[    6.615527]  ? scx_ops_bypass+0x178/0x240
[    6.615530]  ? report_bug+0x144/0x1f0
[    6.615533]  ? scx_ops_bypass+0x178/0x240
[    6.615536]  ? handle_bug+0x6a/0x90
[    6.615538]  ? exc_invalid_op+0x1a/0x50
[    6.615541]  ? asm_exc_invalid_op+0x1a/0x20
[    6.615545]  ? scx_ops_bypass+0x178/0x240
[    6.615548]  ? scx_ops_bypass+0x178/0x240
[    6.615551]  bpf_scx_reg+0xfb5/0x1380
[    6.615559]  bpf_struct_ops_link_create+0x13c/0x190
[    6.615563]  __sys_bpf+0x765/0x6080
[    6.615567]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615570]  ? syscall_exit_to_user_mode+0x38/0xc0
[    6.615573]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615578]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615580]  ? arch_exit_to_user_mode_prepare.cold+0x5/0x5c
[    6.615583]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615585]  ? syscall_exit_to_user_mode+0x38/0xc0
[    6.615587]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615589]  ? do_syscall_64+0x9b/0x170
[    6.615592]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615594]  ? syscall_exit_to_user_mode+0x38/0xc0
[    6.615596]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615598]  ? do_syscall_64+0x9b/0x170
[    6.615601]  ? __se_sys_close.llvm.4416965578177173658+0x6d/0xa0
[    6.615604]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615606]  ? kmem_cache_free.cold+0x138/0x32a
[    6.615610]  __x64_sys_bpf+0x1c/0x30
[    6.615613]  do_syscall_64+0x8f/0x170
[    6.615615]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615617]  ? do_syscall_64+0x9b/0x170
[    6.615621]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615624]  ? arch_exit_to_user_mode_prepare.cold+0x5/0x5c
[    6.615626]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615628]  ? syscall_exit_to_user_mode+0x38/0xc0
[    6.615631]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615633]  ? do_syscall_64+0x9b/0x170
[    6.615635]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615637]  ? arch_exit_to_user_mode_prepare.cold+0x5/0x5c
[    6.615640]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.615643]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[    6.615645] RIP: 0033:0x703f64e8315d
[    6.615656] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 9b 6b 0d 00 f7 d8 64 89 01 48
[    6.615658] RSP: 002b:00007ffebaea0a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[    6.615661] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000703f64e8315d
[    6.615662] RDX: 0000000000000040 RSI: 00007ffebaea0a70 RDI: 000000000000001c
[    6.615664] RBP: 00007ffebaea0b40 R08: 000000000000000f R09: 0000000000000000
[    6.615665] R10: 000000000000000f R11: 0000000000000246 R12: 000000000000000f
[    6.615667] R13: 000000000000002c R14: 0000000000000010 R15: 0000703f650d8000
[    6.615671]  </TASK>
[    6.615673] ---[ end trace 0000000000000000 ]---
[    6.615712] sched_ext: BPF scheduler "lavd" enabled
[    6.623157] sched_ext: kworker/1:0[29] has zero slice in pick_task_scx()

I suppose they werent able to fix the issue? @naim

naim · December 26, 2024, 4:07pm

Sorry, I got sidetracked and haven’t been able to forward this to the developer. I’ll do it now, thanks for reminding me.

naim · December 26, 2024, 4:09pm

As additional info, can your provide the CPU you are using and the output of lscpu -e?

random-user · December 26, 2024, 9:10pm

❯ lscpu -e
CPU NODE SOCKET CORE L1d:L1i:L2:L3 ONLINE    MAXMHZ   MINMHZ       MHZ
  0    0      0    0 0:0:0:0          yes 4550,0000 550,0000 3687,2351
  1    0      0    1 1:1:1:0          yes 4550,0000 550,0000 4550,0000
  2    0      0    2 2:2:2:0          yes 4550,0000 550,0000 2966,9709
  3    0      0    3 3:3:3:0          yes 4550,0000 550,0000 3588,0339
  4    0      0    4 4:4:4:0          yes 4550,0000 550,0000 4550,0000
  5    0      0    5 5:5:5:0          yes 4550,0000 550,0000 3089,5879
  6    0      0    6 6:6:6:0          yes 4550,0000 550,0000 3088,1841
  7    0      0    7 7:7:7:0          yes 4550,0000 550,0000 3591,6030
  8    0      0    0 0:0:0:0          yes 4550,0000 550,0000 3592,1101
  9    0      0    1 1:1:1:0          yes 4550,0000 550,0000 4550,0000
 10    0      0    2 2:2:2:0          yes 4550,0000 550,0000 3564,5701
 11    0      0    3 3:3:3:0          yes 4550,0000 550,0000 2940,8569
 12    0      0    4 4:4:4:0          yes 4550,0000 550,0000 3591,9109
 13    0      0    5 5:5:5:0          yes 4550,0000 550,0000 4550,0000
 14    0      0    6 6:6:6:0          yes 4550,0000 550,0000 3592,9150
 15    0      0    7 7:7:7:0          yes 4550,0000 550,0000 3583,8789

AMD Ryzen 5800X3D

naim · January 6, 2025, 8:35am

Which kernel version is this? Thanks.

random-user · January 6, 2025, 2:32pm

It’s updated most of the time, the default.

naim · January 6, 2025, 3:29pm

Can you share your pacman.log? The lavd developer is asking for this and it may or may not be crucial information leading to the fix.

random-user · January 6, 2025, 5:52pm

I just did the transition sched-ext Tutorial | CachyOS

Before, I was seeing that error mentioned above, almost always, after the transition, it hasn’t appeared, yet.

I will wait to see if it comes back or not.

I also just disabled ananicy-cpp as recommended.

❯ cat /var/log/pacman.log | grep 'scx\|sched\|lavd'
 283   │ [2024-11-28T17:13:22-0300] [ALPM] installed scx-scheds (1.0.6-5)
5860   │ [2024-12-07T12:28:24-0300] [ALPM] upgraded scx-scheds (1.0.6-5 -> 1.0.7-1)
5869   │ [2024-12-07T12:28:25-0300] [ALPM] running '90-scx-scheds-upgrade.hook'...
9333   │ [2024-12-17T10:42:50-0300] [ALPM] upgraded scx-scheds (1.0.7-1 -> 1.0.8-1)
9341   │ [2024-12-17T10:42:51-0300] [ALPM] running '90-scx-scheds-upgrade.hook'...
14298   │ [2025-01-02T12:11:57-0300] [ALPM] upgraded scx-scheds (1.0.8-1 -> 1.0.8-2)
14306   │ [2025-01-02T12:11:59-0300] [ALPM] running '90-scx-scheds-upgrade.hook'...
15454   │ [2025-01-06T13:00:02-0300] [PACMAN] Running 'pacman -S scx-scheds'

naim · January 6, 2025, 6:20pm

I need the kernel version please

random-user · January 6, 2025, 6:57pm

I dont know what is the kernel version of pacman.log

Regardless, if the issue does not appear anymore, should not be relevant.

naim · January 8, 2025, 4:59pm

It seems like there is a fix for this already, can you still reproduce this reliably with the systemd service. If yes, I’d like to provide you a test kernel with the proposed fix to confirm whether the fix does what it’s supposed to or not.

random-user · January 8, 2025, 6:06pm

For now, no need. Like I said, after doing the transition, the error has not returned yet.

Previously, once it had appeared, it would always happen. It disappeared after the transition and has not returned.

random-user · January 11, 2025, 2:15pm

It’s back, today I saw the error on startup, again.

[    6.828201] sched_ext: "lavd" does not implement cgroup cpu.weight
[    6.829226] NOHZ tick-stop error: local softirq work is pending, handler #200!!!
[    6.829244] ------------[ cut here ]------------
[    6.829246] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.829249] WARNING: CPU: 2 PID: 2358 at kernel/sched/sched.h:1739 schedule+0xdec/0x1f50
[    6.829256] Modules linked in: nf_tables vfat fat amd_atl intel_rapl_msr intel_rapl_common snd_hda_codec_realtek kvm_amd snd_hda_scodec_component snd_hda_codec_generic kvm snd_hda_intel crct10dif_pclmul snd_intel_dspcfg crc32_pclmul snd_usb_audio snd_intel_sdw_acpi polyval_clmulni polyval_generic snd_hda_codec snd_usbmidi_lib ee1004 ghash_clmulni_intel eeepc_wmi snd_ump snd_hda_core sha512_ssse3 snd_rawmidi asus_ec_sensors sha1_ssse3 asus_wmi snd_seq_device snd_hwdep aesni_intel platform_profile gf128mul i8042 snd_pcm crypto_simd sparse_keymap snd_timer cryptd serio rapl snd rfkill wmi_bmof i2c_piix4 pcspkr k10temp soundcore i2c_smbus ccp igc mc ptp pps_core mousedev joydev leetmouse(OE) mac_hid tcp_bbr pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink lz4 zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth hid_cmedia nvidia_drm(OE) drm_ttm_helper ttm nvidia_uvm(OE)
[    6.829346]  nvidia_modeset(OE) mxm_wmi video wmi hid_generic nvidia(OE) usbhid
[    6.829356] CPU: 2 UID: 0 PID: 2358 Comm: sugov:2 Tainted: G           OE      6.12.8-2-cachyos #1 ee746d7accaba2b7555fb2b6786c1c08e61d9f63
[    6.829361] Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.829362] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.829365] Sched_ext: lavd (enabling+all)
[    6.829366] RIP: 0010:schedule+0xdec/0x1f50
[    6.829371] Code: 50 4c 89 e7 4c 89 f6 ba 01 00 00 00 2e e8 ac b1 00 00 e9 26 f5 ff ff c6 05 c1 20 3d 01 01 48 c7 c7 49 e2 4d b4 e8 a4 2b 0e ff <0f> 0b 41 8b 84 24 38 0c 00 00 e9 54 f3 ff ff 48 89 df e8 7d 1f 19
[    6.829373] RSP: 0018:ffffa8b95fbb7b40 EFLAGS: 00010046
[    6.829376] RAX: 0c2fc01738a02a00 RBX: ffff894f0fe58000 RCX: 0000000000000027
[    6.829378] RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff89560eb21948
[    6.829380] RBP: ffffa8b95fbb7c00 R08: 0000000000000fff R09: ffffffffb4e5a850
[    6.829382] R10: 0000000000002ffd R11: 0000000000000004 R12: ffff89560eb366c0
[    6.829383] R13: ffff894f0fe58000 R14: ffff89560eb00000 R15: ffffa8b95fbb7c88
[    6.829385] FS:  0000000000000000(0000) GS:ffff89560eb00000(0000) knlGS:0000000000000000
[    6.829388] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.829390] CR2: 000077f5c039e0ea CR3: 00000001017f4000 CR4: 0000000000f50ef0
[    6.829392] PKRU: 55555554
[    6.829393] Call Trace:
[    6.829395]  <TASK>
[    6.829398]  ? __warn+0xd5/0x1d0
[    6.829401]  ? schedule+0xdec/0x1f50
[    6.829406]  ? report_bug+0x144/0x1f0
[    6.829409]  ? schedule+0xdec/0x1f50
[    6.829412]  ? handle_bug+0x6a/0x90
[    6.829415]  ? exc_invalid_op+0x1a/0x50
[    6.829418]  ? asm_exc_invalid_op+0x1a/0x20
[    6.829424]  ? schedule+0xdec/0x1f50
[    6.829429]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829431]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829434]  ? ktime_get+0x48/0xa0
[    6.829437]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829439]  ? clockevents_program_event+0x94/0xb0
[    6.829442]  ? hrtimer_start_range_ns+0x2df/0x440
[    6.829446]  schedule_hrtimeout_range+0xea/0x180
[    6.829450]  ? __pfx_hrtimer_wakeup+0x10/0x10
[    6.829454]  usleep_range_state+0x72/0xa0
[    6.829458]  check_pcc_chan+0x7e/0x110
[    6.829462]  send_pcc_cmd+0x17b/0x280
[    6.829466]  cppc_set_perf+0x22c/0x340
[    6.829469]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829472]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829474]  ? psi_task_switch+0x545/0x870
[    6.829477]  shmem_update_perf+0x38/0x60
[    6.829481]  amd_pstate_update+0x102/0x2e0
[    6.829484]  ? schedule+0x5aa/0x1f50
[    6.829489]  amd_pstate_update_freq+0x159/0x1a0
[    6.829493]  ? __pfx_sugov_work+0x10/0x10
[    6.829496]  sugov_work+0x4a/0x60
[    6.829499]  kthread_worker_fn+0xac/0x170
[    6.829502]  ? __pfx_kthread_worker_fn+0x10/0x10
[    6.829505]  kthread+0xd7/0x110
[    6.829508]  ? __pfx_kthread+0x10/0x10
[    6.829510]  ret_from_fork+0x3a/0x50
[    6.829514]  ? __pfx_kthread+0x10/0x10
[    6.829516]  ret_from_fork_asm+0x1a/0x30
[    6.829523]  </TASK>
[    6.829524] ---[ end trace 0000000000000000 ]---
[    6.829527] ------------[ cut here ]------------
[    6.829529] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.829531] WARNING: CPU: 5 PID: 2309 at kernel/sched/sched.h:1739 scx_ops_bypass+0x178/0x240
[    6.829537] Modules linked in: nf_tables vfat fat amd_atl intel_rapl_msr intel_rapl_common snd_hda_codec_realtek kvm_amd snd_hda_scodec_component snd_hda_codec_generic kvm snd_hda_intel crct10dif_pclmul snd_intel_dspcfg crc32_pclmul snd_usb_audio snd_intel_sdw_acpi polyval_clmulni polyval_generic snd_hda_codec snd_usbmidi_lib ee1004 ghash_clmulni_intel eeepc_wmi snd_ump snd_hda_core sha512_ssse3 snd_rawmidi asus_ec_sensors sha1_ssse3 asus_wmi snd_seq_device snd_hwdep aesni_intel platform_profile gf128mul i8042 snd_pcm crypto_simd sparse_keymap snd_timer cryptd serio rapl snd rfkill wmi_bmof i2c_piix4 pcspkr k10temp soundcore i2c_smbus ccp igc mc ptp pps_core mousedev joydev leetmouse(OE) mac_hid tcp_bbr pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink lz4 zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth hid_cmedia nvidia_drm(OE) drm_ttm_helper ttm nvidia_uvm(OE)
[    6.829620]  nvidia_modeset(OE) mxm_wmi video wmi hid_generic nvidia(OE) usbhid
[    6.829628] CPU: 5 UID: 0 PID: 2309 Comm: scx_lavd Tainted: G        W  OE      6.12.8-2-cachyos #1 ee746d7accaba2b7555fb2b6786c1c08e61d9f63
[    6.829633] Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.829635] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.829637] Sched_ext: lavd (enabling+all), task: runnable_at=+0ms
[    6.829638] RIP: 0010:scx_ops_bypass+0x178/0x240
[    6.829642] Code: eb 42 0f 1f 44 00 00 4c 89 ef e8 53 44 cf 00 49 ff c4 e9 5b ff ff ff c6 05 dd c7 0b 02 01 48 c7 c7 49 e2 4d b4 e8 88 d2 dc ff <0f> 0b eb a5 0f 0b 41 8b 85 6c 0a 00 00 eb a9 0f 0b 41 8b 85 6c 0a
[    6.829645] RSP: 0018:ffffa8b961b6fa58 EFLAGS: 00010046
[    6.829648] RAX: e1bf162493e7a300 RBX: 0000000000000000 RCX: 0000000000000027
[    6.829650] RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff89560eca1948
[    6.829651] RBP: ffff89560eb00000 R08: 0000000000000fff R09: ffffffffb4e5a850
[    6.829653] R10: 0000000000002ffd R11: 0000000000000004 R12: 0000000000000002
[    6.829655] R13: ffff89560eb366c0 R14: 0000000000000282 R15: ffffa8b961b6fa60
[    6.829657] FS:  0000763794e88840(0000) GS:ffff89560ec80000(0000) knlGS:0000000000000000
[    6.829659] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.829661] CR2: 00007961f3ef3190 CR3: 000000013de8a000 CR4: 0000000000f50ef0
[    6.829663] PKRU: 55555554
[    6.829664] Call Trace:
[    6.829666]  <TASK>
[    6.829668]  ? __warn+0xd5/0x1d0
[    6.829671]  ? scx_ops_bypass+0x178/0x240
[    6.829676]  ? report_bug+0x144/0x1f0
[    6.829678]  ? scx_ops_bypass+0x178/0x240
[    6.829682]  ? handle_bug+0x6a/0x90
[    6.829685]  ? exc_invalid_op+0x1a/0x50
[    6.829688]  ? asm_exc_invalid_op+0x1a/0x20
[    6.829693]  ? scx_ops_bypass+0x178/0x240
[    6.829697]  ? scx_ops_bypass+0x178/0x240
[    6.829701]  bpf_scx_reg+0xf6c/0x12e0
[    6.829710]  bpf_struct_ops_link_create+0x13c/0x190
[    6.829715]  __sys_bpf+0x765/0x6080
[    6.829718]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829721]  ? __sys_bpf+0x4f46/0x6080
[    6.829728]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829730]  ? __memcg_slab_free_hook+0x25d/0x900
[    6.829736]  ? __se_sys_close.llvm.17429245774908896778+0x6d/0xa0
[    6.829739]  ? kmem_cache_free.cold+0x138/0x327
[    6.829743]  __x64_sys_bpf+0x1c/0x30
[    6.829747]  do_syscall_64+0x8f/0x170
[    6.829750]  ? do_syscall_64+0x9b/0x170
[    6.829753]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829755]  ? syscall_exit_to_user_mode+0x38/0xc0
[    6.829758]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829760]  ? do_syscall_64+0x9b/0x170
[    6.829762]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829765]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[    6.829769] RIP: 0033:0x7637950b815d
[    6.829782] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 9b 6b 0d 00 f7 d8 64 89 01 48
[    6.829784] RSP: 002b:00007ffc103a7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
[    6.829787] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007637950b815d
[    6.829789] RDX: 0000000000000040 RSI: 00007ffc103a7c70 RDI: 000000000000001c
[    6.829791] RBP: 00007ffc103a7d40 R08: 000000000000000f R09: 00006188d35552b8
[    6.829792] R10: 000000000000000f R11: 0000000000000246 R12: 000000000000000f
[    6.829794] R13: 000000000000002c R14: 00006188d34ff101 R15: 00006188d37c7bc0
[    6.829799]  </TASK>
[    6.829800] ---[ end trace 0000000000000000 ]---
[    6.829802] ------------[ cut here ]------------
[    6.829804] rq->balance_callback && rq->balance_callback != &balance_push_callback
[    6.829806] WARNING: CPU: 2 PID: 2358 at kernel/sched/sched.h:1739 sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829810] Modules linked in: nf_tables vfat fat amd_atl intel_rapl_msr intel_rapl_common snd_hda_codec_realtek kvm_amd snd_hda_scodec_component snd_hda_codec_generic kvm snd_hda_intel crct10dif_pclmul snd_intel_dspcfg crc32_pclmul snd_usb_audio snd_intel_sdw_acpi polyval_clmulni polyval_generic snd_hda_codec snd_usbmidi_lib ee1004 ghash_clmulni_intel eeepc_wmi snd_ump snd_hda_core sha512_ssse3 snd_rawmidi asus_ec_sensors sha1_ssse3 asus_wmi snd_seq_device snd_hwdep aesni_intel platform_profile gf128mul i8042 snd_pcm crypto_simd sparse_keymap snd_timer cryptd serio rapl snd rfkill wmi_bmof i2c_piix4 pcspkr k10temp soundcore i2c_smbus ccp igc mc ptp pps_core mousedev joydev leetmouse(OE) mac_hid tcp_bbr pkcs8_key_parser ntsync(OE) i2c_dev crypto_user dm_mod loop nfnetlink lz4 zram 842_decompress 842_compress lz4hc_compress lz4_compress ip_tables x_tables btrfs libcrc32c crc32c_generic raid6_pq xor crc32c_intel nvme sha256_ssse3 nvme_core nvme_auth hid_cmedia nvidia_drm(OE) drm_ttm_helper ttm nvidia_uvm(OE)
[    6.829891]  nvidia_modeset(OE) mxm_wmi video wmi hid_generic nvidia(OE) usbhid
[    6.829899] CPU: 2 UID: 0 PID: 2358 Comm: sugov:2 Tainted: G        W  OE      6.12.8-2-cachyos #1 ee746d7accaba2b7555fb2b6786c1c08e61d9f63
[    6.829903] Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
[    6.829905] Hardware name: System manufacturer System Product Name/ROG STRIX X570-E GAMING, BIOS 5013 03/18/2024
[    6.829906] Sched_ext: lavd (enabling+all)
[    6.829907] RIP: 0010:sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829910] Code: a0 56 e5 b4 0f 84 c5 61 06 00 f6 05 eb 74 42 02 01 0f 85 b8 61 06 00 c6 05 de 74 42 02 01 48 c7 c7 49 e2 4d b4 e8 9e 7f 13 00 <0f> 0b e9 9e 61 06 00 31 c0 e9 57 65 06 00 f3 0f 1e fa 41 83 be 60
[    6.829913] RSP: 0018:ffffa8b95fbb7a48 EFLAGS: 00010046
[    6.829915] RAX: 0c2fc01738a02a00 RBX: ffff89560eb00000 RCX: 0000000000000027
[    6.829917] RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff89560eb21948
[    6.829919] RBP: 00000000fffb89ad R08: 0000000000000fff R09: ffffffffb4e5a850
[    6.829921] R10: 0000000000002ffd R11: 0000000000000004 R12: 0000000000000002
[    6.829922] R13: 0000000197124f00 R14: ffff89560eb366c0 R15: 0000000000000002
[    6.829924] FS:  0000000000000000(0000) GS:ffff89560eb00000(0000) knlGS:0000000000000000
[    6.829926] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.829928] CR2: 000077f5c039e0ea CR3: 00000001017f4000 CR4: 0000000000f50ef0
[    6.829930] PKRU: 55555554
[    6.829931] Call Trace:
[    6.829933]  <TASK>
[    6.829934]  ? __warn+0xd5/0x1d0
[    6.829937]  ? sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829940]  ? report_bug+0x144/0x1f0
[    6.829943]  ? sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829946]  ? handle_bug+0x6a/0x90
[    6.829949]  ? exc_invalid_op+0x1a/0x50
[    6.829951]  ? asm_exc_invalid_op+0x1a/0x20
[    6.829957]  ? sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829960]  ? sched_balance_update_blocked_averages.cold+0xe0/0x1ce
[    6.829962]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829965]  ? handle_bug+0x6a/0x90
[    6.829967]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829970]  ? exc_invalid_op+0x1a/0x50
[    6.829972]  ? asm_exc_invalid_op+0x1a/0x20
[    6.829976]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829979]  sched_balance_newidle.llvm.12420063280891978792+0x1b3/0x380
[    6.829984]  schedule+0xc81/0x1f50
[    6.829988]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829990]  ? ktime_get+0x48/0xa0
[    6.829993]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.829995]  ? clockevents_program_event+0x94/0xb0
[    6.829998]  ? hrtimer_start_range_ns+0x2df/0x440
[    6.830002]  schedule_hrtimeout_range+0xea/0x180
[    6.830005]  ? __pfx_hrtimer_wakeup+0x10/0x10
[    6.830009]  usleep_range_state+0x72/0xa0
[    6.830013]  check_pcc_chan+0x7e/0x110
[    6.830016]  send_pcc_cmd+0x17b/0x280
[    6.830020]  cppc_set_perf+0x22c/0x340
[    6.830023]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.830025]  ? srso_alias_return_thunk+0x5/0xfbef5
[    6.830027]  ? psi_task_switch+0x545/0x870
[    6.830031]  shmem_update_perf+0x38/0x60
[    6.830033]  amd_pstate_update+0x102/0x2e0
[    6.830036]  ? schedule+0x5aa/0x1f50
[    6.830041]  amd_pstate_update_freq+0x159/0x1a0
[    6.830045]  ? __pfx_sugov_work+0x10/0x10
[    6.830048]  sugov_work+0x4a/0x60
[    6.830050]  kthread_worker_fn+0xac/0x170
[    6.830053]  ? __pfx_kthread_worker_fn+0x10/0x10
[    6.830056]  kthread+0xd7/0x110
[    6.830059]  ? __pfx_kthread+0x10/0x10
[    6.830061]  ret_from_fork+0x3a/0x50
[    6.830064]  ? __pfx_kthread+0x10/0x10
[    6.830066]  ret_from_fork_asm+0x1a/0x30
[    6.830073]  </TASK>
[    6.830074] ---[ end trace 0000000000000000 ]---
[    6.830131] sched_ext: BPF scheduler "lavd" enabled
[    6.838190] sched_ext: kworker/7:1[258] has zero slice in pick_task_scx()

naim · January 11, 2025, 2:18pm

Should be fixed in 6.13rc7.