Paolo, Jens I am sorry for the noise. But today I hit the kernel panic and git blame said that you have created the file in which happened panic (this I saw from trace) $ /usr/src/kernels/`uname -r`/scripts/faddr2line /lib/debug/lib/modules/`uname -r`/vmlinux __bfq_deactivate_entity+0x15a __bfq_deactivate_entity+0x15a/0x240: bfq_gt at block/bfq-wf2q.c:20 (inlined by) bfq_insert at block/bfq-wf2q.c:381 (inlined by) bfq_idle_insert at block/bfq-wf2q.c:621 (inlined by) __bfq_deactivate_entity at block/bfq-wf2q.c:1203 https://github.com/torvalds/linux/blame/master/block/bfq-wf2q.c#L1203 $ head /sys/block/*/queue/scheduler ==> /sys/block/nvme0n1/queue/scheduler <== [none] mq-deadline kyber bfq ==> /sys/block/sda/queue/scheduler <== mq-deadline kyber [bfq] none ==> /sys/block/zram0/queue/scheduler <== none Trace: general protection fault, probably for non-canonical address 0x46b1b0f0d8856e4a: 0000 [#1] SMP NOPTI CPU: 27 PID: 1018 Comm: kworker/27:1H Tainted: G W --------- --- 5.9.0-0.rc8.28.fc34.x86_64 #1 Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 2606 08/13/2020 Workqueue: kblockd blk_mq_run_work_fn RIP: 0010:__bfq_deactivate_entity+0x15a/0x240 Code: 48 2b 41 28 48 85 c0 7e 05 49 89 5c 24 18 49 8b 44 24 08 4d 8d 74 24 08 48 85 c0 0f 84 d6 00 00 00 48 8b 7b 28 eb 03 48 89 c8 <48> 8b 48 28 48 8d 70 10 48 8d 50 08 48 29 f9 48 85 c9 48 0f 4f d6 RSP: 0018:ffffadf6c0c6fc00 EFLAGS: 00010002 RAX: 46b1b0f0d8856e4a RBX: ffff8dc2773b5c88 RCX: 46b1b0f0d8856e4a RDX: ffff8dc7d02ed0a0 RSI: ffff8dc7d02ed0a8 RDI: 0000584e64e96beb RBP: ffff8dc2773b5c00 R08: ffff8dc9054cb938 R09: 0000000000000000 R10: 0000000000000018 R11: 0000000000000018 R12: ffff8dc904927150 R13: 0000000000000001 R14: ffff8dc904927158 R15: ffff8dc2773b5c88 FS: 0000000000000000(0000) GS:ffff8dc90e0c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000003e8ebe4000 CR3: 00000007c2546000 CR4: 0000000000350ee0 Call Trace: bfq_deactivate_entity+0x4f/0xc0 bfq_del_bfqq_busy+0xbf/0x170 __bfq_bfqq_expire+0x95/0xc0 bfq_bfqq_expire+0x3c5/0x9a0 ? bfq_active_extract+0x8e/0x140 bfq_dispatch_request+0x438/0x1070 __blk_mq_do_dispatch_sched+0x1c7/0x290 ? dequeue_entity+0xa4/0x420 __blk_mq_sched_dispatch_requests+0x129/0x180 blk_mq_sched_dispatch_requests+0x30/0x60 __blk_mq_run_hw_queue+0x49/0x110 process_one_work+0x1b4/0x370 worker_thread+0x53/0x3e0 ? process_one_work+0x370/0x370 kthread+0x11b/0x140 ? __kthread_bind_mask+0x60/0x60 ret_from_fork+0x22/0x30 Modules linked in: tun snd_seq_dummy snd_hrtimer uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 sunrpc vfat fat mt76x2u snd_hda_codec_realtek mt76x2_common mt76x02_usb snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi mt76_usb mt76x02_lib edac_mce_amd iwlmvm snd_hda_intel mt76 snd_intel_dspcfg kvm_amd mac80211 gspca_zc3xx snd_usb_audio snd_hda_codec gspca_main uvcvideo btusb snd_usbmidi_lib iwlwifi snd_hda_core videobuf2_vmalloc kvm videobuf2_memops btrtl snd_rawmidi videobuf2_v4l2 snd_hwdep btbcm snd_seq btintel videobuf2_common eeepc_wmi irqbypass snd_seq_device asus_wmi xpad bluetooth joydev sparse_keymap libarc4 rapl cfg80211 ff_memless snd_pcm videodev video pcspkr wmi_bmof sp5100_tco snd_timer mc k10temp i2c_piix4 snd ecdh_generic ecc soundcore rfkill acpi_cpufreq binfmt_misc zram ip_tables hid_logitech_hidpp hid_logitech_dj amdgpu iommu_v2 gpu_sched ttm drm_kms_helper cec crct10dif_pclmul crc32_pclmul crc32c_intel drm ccp igb ghash_clmulni_intel nvme nvme_core dca i2c_algo_bit wmi pinctrl_amd fuse ---[ end trace 09deb55d1b05f40c ]--- Full system log: https://pastebin.com/6cKHZzAi Full kernel log: https://pastebin.com/316HjHit Unfortunately, I did not know how reproduce this bug. I am not doing anything unusual on the computer when it happened. I could provide any useful info for further investigation. -- Best Regards, Mike Gavrilov.
