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Additional info: reporter: libreport-2.15.2 WARNING: CPU: 2 PID: 164 at fs/btrfs/block-rsv.c:521 btrfs_use_block_rsv+0x1dd/0x200 Modules linked in: xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp 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 nf_tables ebtable_nat ebtable_broute 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 bridge stp llc ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep sunrpc squashfs loop uvcvideo videobuf2_vmalloc videobuf2_memops snd_hda_codec_via snd_hda_codec_generic videobuf2_v4l2 iwlmvm ledtrig_audio snd_hda_codec_hdmi videobuf2_common snd_hda_intel mac80211 videodev snd_intel_dspcfg snd_intel_sdw_acpi iTCO_wdt intel_rapl_msr snd_hda_codec snd_hda_core btusb mc intel_rapl_common intel_pmc_bxt libarc4 x86_pkg_temp_thermal intel_powerclamp coretemp iwlwifi snd_hwdep btrtl kvm_intel snd_seq mei_hdcp btbcm iTCO_vendor_support btintel at24 cfg80211 snd_seq_device kvm bluetooth snd_pcm mei_me i2c_i801 irqbypass rapl snd_timer ecdh_generic intel_cstate mei joydev snd intel_uncore i2c_smbus lpc_ich rfkill soundcore binfmt_misc zram ip_tables dm_crypt trusted asn1_encoder hid_logitech_hidpp hid_logitech_dj i915 i2c_algo_bit ttm rtsx_pci_sdmmc crct10dif_pclmul crc32_pclmul mmc_core drm_kms_helper crc32c_intel cec ghash_clmulni_intel drm serio_raw e1000e rtsx_pci wmi video fuse ecryptfs CPU: 2 PID: 164 Comm: kworker/u16:3 Not tainted 5.14.13-200.fc34.x86_64 #1 Hardware name: Notebook W740SU /W740SU , BIOS 4.6.5 04/21/2014 Workqueue: btrfs-endio-write btrfs_work_helper RIP: 0010:btrfs_use_block_rsv+0x1dd/0x200 Code: e1 e3 ae 89 54 24 04 e8 41 b3 15 00 8b 54 24 04 85 c0 0f 84 02 ff ff ff 41 0f b7 74 24 1e 48 c7 c7 b0 07 61 ae e8 3f de 67 00 <0f> 0b e9 e9 fe ff ff ba e4 ff ff ff e9 a6 fe ff ff ba e4 ff ff ff RSP: 0018:ffffb190c11379f0 EFLAGS: 00010286 RAX: 000000000000001f RBX: 0000000000004000 RCX: 0000000000000027 RDX: ffffa0d4cfa98a08 RSI: 0000000000000001 RDI: ffffa0d4cfa98a00 RBP: ffffa0d1c112a000 R08: 0000000000000000 R09: ffffb190c1137828 R10: ffffb190c1137820 R11: ffffffffaed47468 R12: ffffa0d1d3a0aa68 R13: 0000000000000002 R14: ffffa0d1c7fe1800 R15: ffffa0d1d3a0aa80 FS: 0000000000000000(0000) GS:ffffa0d4cfa80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000565014cb1300 CR3: 00000001b7c10004 CR4: 00000000001706e0 Call Trace: btrfs_alloc_tree_block+0x6a/0x4e0 __btrfs_cow_block+0x11f/0x5b0 btrfs_cow_block+0xf5/0x180 btrfs_search_slot+0x501/0x960 ? insert_reserved_file_extent+0x294/0x300 btrfs_lookup_csum+0x4c/0x120 btrfs_csum_file_blocks+0x14a/0x650 btrfs_finish_ordered_io.isra.0+0x3fd/0x900 btrfs_work_helper+0xe1/0x310 process_one_work+0x1ec/0x390 worker_thread+0x53/0x3e0 ? process_one_work+0x390/0x390 kthread+0x127/0x150 ? set_kthread_struct+0x40/0x40 ret_from_fork+0x22/0x30
Created attachment 1838465 [details] File: dmesg
Jan are you still running into this problem?
No I have not seen this lately, but in hindsight I think it is related to Bug 2017895.
This message is a reminder that Fedora Linux 34 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora Linux 34 on 2022-06-07. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a 'version' of '34'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, change the 'version' to a later Fedora Linux version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora Linux 34 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora Linux, you are encouraged to change the 'version' to a later version prior to this bug being closed.
Fedora Linux 34 entered end-of-life (EOL) status on 2022-06-07. Fedora Linux 34 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. Thank you for reporting this bug and we are sorry it could not be fixed.