nocow file corruption #1035
Description
Basic information
bcachefs show-super /dev/disk/by-uuid/8a4774a7-0c01-43f9-afc7-9bd6e151bc9a
External UUID: 8a4774a7-0c01-43f9-afc7-9bd6e151bc9a Internal UUID: d4de81cd-d0fa-4ac7-94a1-d765d7926820 Magic number: c68573f6-66ce-90a9-d96a-60cf803df7ef Device index: 1 Label: CachyOS Version: (unknown version) (1.35) Incompatible features allowed: reconcile (1.33) Incompatible features in use: reconcile (1.33) Version upgrade complete: (unknown version) (1.35) Oldest version on disk: reconcile (1.33) Created: Sun Dec 7 16:38:24 2025 Sequence number: 23130 Time of last write: Tue Jan 6 20:43:36 2026 Superblock size: 7.82k/1.00M Clean: 0 Devices: 3 Sections: replicas_v0,disk_groups,clean,journal_seq_blacklist,journal_v2,counters,members_v2,errors,ext,downgrade,recovery_passes,extent_type_u64s Features: zstd,journal_seq_blacklist_v3,reflink,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,extents_above_btree_updates,btree_updates_journalled,reflink_inline_data,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes,incompat_version_field,casefolding Compat features: alloc_info,alloc_metadata,extents_above_btree_updates_done,bformat_overflow_done,no_stale_ptrsOptions:
block_size: 4.00k
btree_node_size: 256k
errors: continue [fix_safe] panic ro
write_error_timeout: 30
metadata_replicas: 2
data_replicas: 1
metadata_replicas_required: 1
data_replicas_required: 1
encoded_extent_max: 64.0k
metadata_checksum: none [crc32c] crc64 xxhash
data_checksum: none [crc32c] crc64 xxhash
checksum_err_retry_nr: 3
compression: zstd:5
background_compression: zstd:15
str_hash: [crc32c] crc64 siphash
metadata_target: none
foreground_target: ssd
background_target: hdd
promote_target: ssd
erasure_code: 0
casefold: 0
inodes_32bit: 0
shard_inode_numbers_bits: 4
gc_reserve_percent: 8
gc_reserve_bytes: 0
root_reserve_percent: 0
wide_macs: 0
promote_whole_extents: 1
acl: 1
usrquota: 0
grpquota: 0
prjquota: 0
degraded: [ask] yes very no
journal_flush_delay: 1000
journal_flush_disabled: 0
journal_reclaim_delay: 100
writeback_timeout: 0
journal_transaction_names: 1
allocator_stuck_timeout: 30
version_upgrade: [compatible] incompatible none
nocow: 0
reconcile_on_ac_only: 0errors (size 120):
extent_io_opts_not_set 1058679 Tue Jan 6 16:33:05 2026
hash_table_key_wrong_offset 212 Thu Jan 1 22:04:24 2026
btree_node_data_missing 5 Tue Dec 30 19:10:36 2025
bset_bad_csum 1 Mon Dec 22 18:57:28 2025
deleted_inode_but_clean 12 Sat Dec 13 15:36:38 2025
btree_ptr_to_bad_reconcile_bp 1 Thu Dec 11 23:02:44 2025
btree_node_topology_bad_min_key 2 Thu Dec 11 23:02:43 2025
ext (size 96):
Recovery passes required:
Errors to silently fix:
Btrees with missing data:
Device 0: /dev/sdc1 ST2000DM008-2FR1
Label: hdd.00
UUID: 46e7eff9-01d3-4441-9a17-6009752b2af9
Size: 1.81T
read errors: 0
write errors: 0
checksum errors: 0
seqread iops: 0
seqwrite iops: 0
randread iops: 0
randwrite iops: 0
Bucket size: 2.00M
First bucket: 0
Buckets: 953864
Last mount: Tue Jan 6 20:41:20 2026
Last superblock write: 23130
State: rw
Data allowed: journal,btree,user
Has data: journal,btree,user
Rotational: 1
Btree allocated bitmap blocksize: 64.0M
Btree allocated bitmap: 0000000000000000000000100000000000000000000000000000000000000001
Durability: 1
Discard: 0
Freespace initialized: 1
Resize on mount: 0
Last device name: sdc1
Last device model:
Device 1: /dev/sdb1 TOSHIBA HDWD130
Label: hdd.01
UUID: 5b8b66d9-2aa9-4bef-9fde-7806d1bc244a
Size: 1.81T
read errors: 0
write errors: 0
checksum errors: 0
seqread iops: 0
seqwrite iops: 0
randread iops: 0
randwrite iops: 0
Bucket size: 2.00M
First bucket: 0
Buckets: 953864
Last mount: Tue Jan 6 20:41:20 2026
Last superblock write: 23130
State: rw
Data allowed: journal,btree,user
Has data: journal,btree,user,cached
Rotational: 1
Btree allocated bitmap blocksize: 64.0M
Btree allocated bitmap: 0000000000000000000000000000100000000000000000000000000000010011
Durability: 1
Discard: 0
Freespace initialized: 1
Resize on mount: 0
Last device name: sdb1
Last device model:
Device 2: /dev/nvme0n1p5 SPCC M.2 PCIe SSD
Label: ssd.00
UUID: ba1fbbb1-3f06-491e-a4ac-fec1b24de58f
Size: 84.4G
read errors: 7532
write errors: 7875
checksum errors: 2
seqread iops: 0
seqwrite iops: 0
randread iops: 0
randwrite iops: 0
Bucket size: 256k
First bucket: 0
Buckets: 345940
Last mount: Tue Jan 6 20:41:20 2026
Last superblock write: 23130
State: rw
Data allowed: journal,btree,user
Has data: journal,btree,user,cached
Rotational: 0
Btree allocated bitmap blocksize: 4.00M
Btree allocated bitmap: 0000000000000000000000111101001111111111111111111110111111111111
Durability: 1
Discard: 1
Freespace initialized: 1
Resize on mount: 0
Last device name: nvme0n1p5
Last device model:
I have created the filesystem around version 1.33, which, as you can see above, is the oldest version on the disk. I am using CachyOS and the bcachefs-dkms package from cachyos-v3 repo. This is the root filesystem for my OS.
The problem
I recently discovered that some of my zip files were corrupted. I noticed this when the software using the files reported an error. Since I had acquired the files via the BitTorrent network, I simply "rechecked" them and the software downloaded the missing pieces. Unfortunately, that didn't help. The file became corrupted again after the software tried to read it - or perhaps after reconcile did something to the file.
Meanwhile, I encountered #1025 and tried updating both the bcachefs module and bcachefs tools to the latest versions from git (I used bcachefs-kernel-dkms-git and bcachefs-tools-git packages from AUR). This got rid of the messages in the journal. To eliminate the possibility of the unstable master branch being the source of my data corruption problem, I downgraded to the "stable" version (1.34, both kernel module and tools).
The only "weird" thing in my setup that could lead us to the source of the problem is that the corrupted file has the nocow attribute. My setup looks like this, where my file - renamed.zip is a hard link to my file.zip:
~ (home directory)
├── Downloads (bcachefs.nocow: "1")
│ └── my file.zip (bcachefs_effective.nocow: "1")
└── Library (bcachefs.nocow: "1")
└── my file - renamed.zip (bcachefs_effective.nocow: "1")
Observations
- I removed the file and downloaded it again. This time, that one file didn't get corrupted, BUT another file from the same torrent did. That file had the same attributes and a hard link as the first file. They probably shared a piece together, which was downloaded again and written to both files. The corruption happens after writing.
- This time, I only removed only the hard link to the second file and downloaded the missing pieces. The file still got corrupted.
- I removed the file attributes from
Downloadsdirectory usingbcachefs set-file-option --remove-all Downloads. The files don't seem to be getting corrupted now.
I will check for corruption again after reconcile finishes because, after removing the file attributes I have a lot of data to reconcile and bch-reconcile is using only a one core of my 16-core CPU:
Scan pending: 0
data metadata
replicas: 0 0
checksum: 2.73T 0
erasure_code: 0 0
compression: 2.45T 0
target: 318M 6.50M
high_priority: 0 0
Bcachefs-related things in the journal I could find
btree trans held srcu lock (delaying memory reclaim) for X seconds together with some extent with incorrect/missing reconcile opts errors
show logs
------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 10 seconds
fsync: 1 3 3 4 2 2 1 0 2 3 4 2 5 4 1 0 0 2 3 4
data_read: 55688 109960 52424 111592 92552 0 6712 3888 107896 12032 43472 67552 67256 42456 237880 96896 114616 70392 96544 71848
data_read_inline: 0 0 0 8 0 0 0 8 0 0 0 0 0 0 0 0 0 0 0 0
data_read_promote: 17024 33752 52088 61096 35040 824 1456 0 12984 8112 27392 16520 31920 41352 43024 70960 40424 28768 59416 58568
data_read_nopromote: 277 834 189 258 255 0 20 24 1783 45 97 694 422 81 2261 294 305 1084 257 134
data_read_nopromote_already_promoted: 158 537 1 2 59 0 0 0 1783 0 1 567 289 0 1772 4 1 1051 112 1
data_read_nopromote_congested: 0 40 0 0 15 0 0 24 0 0 0 52 0 0 298 0 13 10 0 52
data_read_nopromote_in_flight: 0 0 0 3 125 0 0 0 0 0 0 0 0 0 1 26 0 7 5 1
data_read_bounce: 140 218 142 257 204 0 25 0 50 31 217 116 178 207 280 200 311 611 250 188
data_read_split: 154 521 0 29 47 0 0 0 1341 0 0 0 283 0 637 45 0 156 109 63
data_write: 16 40 56 72 32 48 16 536 200 104 72 320 64 112 1648 0 0 352 2
WARNING: CPU: 2 PID: 7636 at btree/iter.c:3379 bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Modules linked in: xt_REDIRECT ip_vs_rr xt_ipvs ip_vs veth vxlan xt_policy xt_mark xt_bpf nf_conntrack_netlink ntfs3 xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE br_netfilter bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables rfcomm snd_seq_dummy snd_hrtimer snd_seq overlay wireguard libcurve25519 ip6_udp_tunnel udp_tunnel uhid cmac algif_hash algif_skcipher af_alg bnep vfat fat intel_rapl_msr amd_atl intel_rapl_common snd_hda_codec_alc882 snd_hda_codec_realtek_lib snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi kvm_amd btusb btmtk snd_hda_intel ee1004 btbcm kvm btintel snd_usb_audio uvcvideo snd_hda_codec btrtl uvc snd_usbmidi_lib videobuf2_vmalloc snd_hda_core snd_ump irqbypass videobuf2_memops polyval_clmulni videobuf2_v4l2 snd_intel_dspcfg snd_rawmidi ghash_clmulni_intel snd_intel_sdw_acpi aesni_intel r8169 snd_hwdep snd_seq_device videobuf2_common rapl bluetooth snd_pcm realtek
mdio_devres snd_timer wmi_bmof pcspkr joydev rfkill mousedev videodev libphy snd mc i2c_piix4 mdio_bus k10temp i2c_smbus ccp gpio_amdpt soundcore gpio_generic mac_hid dm_mod pkcs8_key_parser crypto_user i2c_dev ledtrig_timer ntsync nfnetlink zram 842_compress 842_decompress bcachefs(OE) lz4hc_compress lz4_compress nvme uas nvme_core usb_storage nvme_keyring nvme_auth hkdf nvidia_drm(O) drm_ttm_helper ttm nvidia_uvm(O) nvidia_modeset(O) video wmi nvidia(O)
CPU: 2 UID: 1000 PID: 7636 Comm: qbittorrent Tainted: G W OE 6.18.3-2-cachyos #1 PREEMPT(full) 11aabd8c875395ff9e5f94cbdfbdc3096e1fb708
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: To Be Filled By O.E.M. A320M-HDV R4.0/A320M-HDV R4.0, BIOS P10.41 02/20/2025
RIP: 0010:bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Code: 44 24 28 48 8d 7c 24 28 e8 00 82 10 00 4c 89 ff e9 ee fe ff ff e8 73 b1 0c e4 48 8b 34 24 48 c7 c7 45 25 8f c1 e8 b3 bc df e2 <0f> 0b eb a4 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 90 90
RSP: 0018:ffffd3ff5653f670 EFLAGS: 00010246
RAX: 19df6bfd96616200 RBX: ffff8b4d6bc00000 RCX: 0000000000000027
RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff8b5266c9d008
RBP: fffff9d151478400 R08: 0000000000000fff R09: ffffffffa6c5d010
R10: 0000000000002ffd R11: 4000000000000000 R12: ffff8b4d6bc00000
R13: ffff8b4d69400000 R14: ffffd3ff5653f670 R15: ffff8b4d69400000
FS: 00007fe3c3fff6c0(0000) GS:ffff8b52bf384000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000038f3e4139000 CR3: 0000000488e9d000 CR4: 0000000000f50ef0
PKRU: 55555554
Call Trace:
bch2_trans_begin+0x590/0x710 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? bchfs_read+0xbd5/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
bchfs_read+0xf1/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? mempool_alloc_noprof+0x96/0xd0
? srso_alias_return_thunk+0x5/0xfbef5
? bio_alloc_bioset+0x2bd/0x2d0
bch2_readahead+0x2ff/0x590 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
read_pages+0x8f/0xf0
page_cache_ra_order+0x262/0x2a0
do_sync_mmap_readahead+0x123/0x220
filemap_fault.cold+0x2c/0x32d
bch2_page_fault+0xd8/0x190 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
__do_fault+0x31/0x1d0
do_pte_missing+0x541/0x1760
? srso_alias_return_thunk+0x5/0xfbef5
? srso_alias_return_thunk+0x5/0xfbef5
handle_mm_fault+0x4d0/0x7b0
? __x64_sys_rt_sigprocmask+0x132/0x190
do_user_addr_fault+0x2a2/0x590
? srso_alias_return_thunk+0x5/0xfbef5
exc_page_fault+0x66/0xd0
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fe42c888ab1
Code: 8d 26 f3 c3 90 66 0f 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 6f 07 66 0f 6e 4f 10 66 0f 6f 1d 2f d6 0a 00 0f 6f 26 66 0f 70 c0 1b f3 0f 6f 6e 10 66 0f 70 c9 1b f3 0f 6f
RSP: 002b:00007fe3c3ffcfd8 EFLAGS: 00010206
RAX: 0000000000020000 RBX: 0000000000004000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: 00007f5a37f0db5f RDI: 00007fe3c3ffd4a0
RBP: 00007fe3c3ffd020 R08: 000000007ef8320b R09: 00000000078bffff
R10: 00000000219c97a9 R11: 0000000000000246 R12: 00007fe3c3ffd4a0
R13: 00007f5a37f0db5f R14: 0000000000004000 R15: 0000000000004000
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 10 seconds
fsync: 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0
data_read: 0 9736 0 2736 20144 33888 107736 12840 35784 952 19320 107208 35256 111552 84008 110728 95304 154648 134128 64592
data_read_promote: 8304 1472 0 832 10392 1896 40168 16512 16688 22872 0 18448 32840 43960 54304 34792 39320 56872 69168 50264
data_read_nopromote: 0 46 0 78 27 201 988 15 77 2 12 1355 87 635 206 1287 720 1136 638 164
data_read_nopromote_already_promoted: 0 0 0 78 0 0 630 0 1 0 0 1158 0 438 86 1186 569 932 429 0
data_read_nopromote_congested: 0 0 0 0 22 0 113 0 35 0 0 22 0 0 46 26 92 56 4 0
data_read_nopromote_in_flight: 0 0 0 0 5 0 1 1 0 0 0 0 0 0 0 13 0 1 31 1
data_read_bounce: 0 32 0 74 36 79 295 46 103 0 31 110 94 650 273 172 172 322 315 170
data_read_split: 0 0 0 0 0 0 454 0 0 0 0 275 0 162 104 1168 570 918 409 0
data_write: 0 0 0 0 0 0 0 0 0 0 1400 0 0 0 8 0 0 0 0 0
data_update: 6632 1472 0 832 10392 1896 40168 16512 16688 22872 0 18448 32840 43960 54304 34792 39320 5
WARNING: CPU: 13 PID: 7624 at btree/iter.c:3379 bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Modules linked in: xt_REDIRECT ip_vs_rr xt_ipvs ip_vs veth vxlan xt_policy xt_mark xt_bpf nf_conntrack_netlink ntfs3 xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE br_netfilter bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables rfcomm snd_seq_dummy snd_hrtimer snd_seq overlay wireguard libcurve25519 ip6_udp_tunnel udp_tunnel uhid cmac algif_hash algif_skcipher af_alg bnep vfat fat intel_rapl_msr amd_atl intel_rapl_common snd_hda_codec_alc882 snd_hda_codec_realtek_lib snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi kvm_amd btusb btmtk snd_hda_intel ee1004 btbcm kvm btintel snd_usb_audio uvcvideo snd_hda_codec btrtl uvc snd_usbmidi_lib videobuf2_vmalloc snd_hda_core snd_ump irqbypass videobuf2_memops polyval_clmulni videobuf2_v4l2 snd_intel_dspcfg snd_rawmidi ghash_clmulni_intel snd_intel_sdw_acpi aesni_intel r8169 snd_hwdep snd_seq_device videobuf2_common rapl bluetooth snd_pcm realtek
mdio_devres snd_timer wmi_bmof pcspkr joydev rfkill mousedev videodev libphy snd mc i2c_piix4 mdio_bus k10temp i2c_smbus ccp gpio_amdpt soundcore gpio_generic mac_hid dm_mod pkcs8_key_parser crypto_user i2c_dev ledtrig_timer ntsync nfnetlink zram 842_compress 842_decompress bcachefs(OE) lz4hc_compress lz4_compress nvme uas nvme_core usb_storage nvme_keyring nvme_auth hkdf nvidia_drm(O) drm_ttm_helper ttm nvidia_uvm(O) nvidia_modeset(O) video wmi nvidia(O)
CPU: 13 UID: 1000 PID: 7624 Comm: qbittorrent Tainted: G W OE 6.18.3-2-cachyos #1 PREEMPT(full) 11aabd8c875395ff9e5f94cbdfbdc3096e1fb708
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: To Be Filled By O.E.M. A320M-HDV R4.0/A320M-HDV R4.0, BIOS P10.41 02/20/2025
RIP: 0010:bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Code: 44 24 28 48 8d 7c 24 28 e8 00 82 10 00 4c 89 ff e9 ee fe ff ff e8 73 b1 0c e4 48 8b 34 24 48 c7 c7 45 25 8f c1 e8 b3 bc df e2 <0f> 0b eb a4 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 90 90
RSP: 0018:ffffd3ff64403670 EFLAGS: 00010246
RAX: 2fbdcdafd3f29c00 RBX: ffff8b4eae314000 RCX: 0000000000000027
RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff8b5266f5d008
RBP: fffff9d1567bb540 R08: 0000000000000fff R09: ffffffffa6c5d010
R10: 0000000000002ffd R11: 4000000000000000 R12: ffff8b4eae314000
R13: ffff8b4d69400000 R14: ffffd3ff64403670 R15: ffff8b4d69400000
FS: 00007fe3c2ffd6c0(0000) GS:ffff8b52bf644000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda2e68449c CR3: 0000000488e9d000 CR4: 0000000000f50ef0
PKRU: 55555554
Call Trace:
bch2_trans_begin+0x590/0x710 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? bchfs_read+0xbd5/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
bchfs_read+0xf1/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? mempool_alloc_noprof+0x96/0xd0
? srso_alias_return_thunk+0x5/0xfbef5
? bio_alloc_bioset+0x2bd/0x2d0
bch2_readahead+0x2ff/0x590 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
read_pages+0x8f/0xf0
page_cache_ra_order+0x262/0x2a0
do_sync_mmap_readahead+0x123/0x220
filemap_fault.cold+0x2c/0x32d
bch2_page_fault+0xd8/0x190 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
__do_fault+0x31/0x1d0
do_pte_missing+0x541/0x1760
? srso_alias_return_thunk+0x5/0xfbef5
? alloc_pages_noprof+0xc8/0x160
? srso_alias_return_thunk+0x5/0xfbef5
? __pmd_alloc+0x151/0x190
handle_mm_fault+0x4d0/0x7b0
do_user_addr_fault+0x2a2/0x590
exc_page_fault+0x66/0xd0
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fe42ad984cd
Code: 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 83 fa 20 72 23 fe 6f 06 48 83 fa 40 0f 87 a5 00 00 00 c5 fe 6f 4c 16 e0 c5 fe
RSP: 002b:00007fe3c2ffb1d8 EFLAGS: 00010202
RAX: 00007fe1d40110b0 RBX: 00007fe3c2ffc2e0 RCX: 00007fe3c2ffb3f0
RDX: 0000000000004000 RSI: 00007f6302c3f1bd RDI: 00007fe1d40110b0
RBP: 0000000000000000 R08: 0000000000000006 R09: 00007fe1ac002308
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe1d4001050 R14: 00007fe3f9cc1db0 R15: 000056332f93e480
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
btree trans held srcu lock (delaying memory reclaim) for 10 seconds
fsync: 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0
data_read: 107016 201784 150928 159032 49288 9736 0 2736 20144 33888 107736 12840 35784 952 19320 107208 35256 111552 84008 110728
data_read_inline: 0 0 16 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
data_read_promote: 48520 59800 70488 41696 42080 1472 0 832 10392 1896 40168 16512 16688 22872 0 18448 32840 43960 54304 34792
data_read_nopromote: 584 2009 736 1619 56 46 0 78 27 201 988 15 77 2 12 1355 87 635 206 1287
data_read_nopromote_already_promoted: 344 1708 313 1356 1 0 0 78 0 0 630 0 1 0 0 1158 0 438 86 1186
data_read_nopromote_congested: 35 44 32 41 0 0 0 0 22 0 113 0 35 0 0 22 0 0 46 26
data_read_nopromote_in_flight: 0 0 1 17 1 0 0 0 5 0 1 1 0 0 0 0 0 0 0 13
data_read_bounce: 207 289 766 397 176 32 0 74 36 79 295 46 103 0 31 110 94 650 273 172
data_read_split: 98 1690 0 1067 0 0 0 0 0 0 454 0 0 0 0 275 0 162 104 1168
data_write: 0 0 24 0 0 0 0 0 0 0 0 0 0 0 1400 0 0 0 8 0
data_update: 47744 59800
WARNING: CPU: 4 PID: 7639 at btree/iter.c:3379 bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Modules linked in: xt_REDIRECT ip_vs_rr xt_ipvs ip_vs veth vxlan xt_policy xt_mark xt_bpf nf_conntrack_netlink ntfs3 xt_nat xt_tcpudp xt_conntrack xt_MASQUERADE br_netfilter bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables rfcomm snd_seq_dummy snd_hrtimer snd_seq overlay wireguard libcurve25519 ip6_udp_tunnel udp_tunnel uhid cmac algif_hash algif_skcipher af_alg bnep vfat fat intel_rapl_msr amd_atl intel_rapl_common snd_hda_codec_alc882 snd_hda_codec_realtek_lib snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi kvm_amd btusb btmtk snd_hda_intel ee1004 btbcm kvm btintel snd_usb_audio uvcvideo snd_hda_codec btrtl uvc snd_usbmidi_lib videobuf2_vmalloc snd_hda_core snd_ump irqbypass videobuf2_memops polyval_clmulni videobuf2_v4l2 snd_intel_dspcfg snd_rawmidi ghash_clmulni_intel snd_intel_sdw_acpi aesni_intel r8169 snd_hwdep snd_seq_device videobuf2_common rapl bluetooth snd_pcm realtek
mdio_devres snd_timer wmi_bmof pcspkr joydev rfkill mousedev videodev libphy snd mc i2c_piix4 mdio_bus k10temp i2c_smbus ccp gpio_amdpt soundcore gpio_generic mac_hid dm_mod pkcs8_key_parser crypto_user i2c_dev ledtrig_timer ntsync nfnetlink zram 842_compress 842_decompress bcachefs(OE) lz4hc_compress lz4_compress nvme uas nvme_core usb_storage nvme_keyring nvme_auth hkdf nvidia_drm(O) drm_ttm_helper ttm nvidia_uvm(O) nvidia_modeset(O) video wmi nvidia(O)
CPU: 4 UID: 1000 PID: 7639 Comm: qbittorrent Tainted: G W OE 6.18.3-2-cachyos #1 PREEMPT(full) 11aabd8c875395ff9e5f94cbdfbdc3096e1fb708
Tainted: [W]=WARN, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: To Be Filled By O.E.M. A320M-HDV R4.0/A320M-HDV R4.0, BIOS P10.41 02/20/2025
RIP: 0010:bch2_trans_srcu_unlock+0x1ed/0x200 [bcachefs]
Code: 44 24 28 48 8d 7c 24 28 e8 00 82 10 00 4c 89 ff e9 ee fe ff ff e8 73 b1 0c e4 48 8b 34 24 48 c7 c7 45 25 8f c1 e8 b3 bc df e2 <0f> 0b eb a4 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 90 90
RSP: 0018:ffffd3ff56b57670 EFLAGS: 00010246
RAX: 38a52cc270724600 RBX: ffff8b505bdd4000 RCX: 0000000000000027
RDX: 00000000ffffefff RSI: 0000000000000002 RDI: ffff8b5266d1d008
RBP: fffff9d1532fa240 R08: 0000000000000fff R09: ffffffffa6c5d010
R10: 0000000000002ffd R11: 4000000000000000 R12: ffff8b505bdd4000
R13: ffff8b4d69400000 R14: ffffd3ff56b57670 R15: ffff8b4d69400000
FS: 00007fe3c1ffb6c0(0000) GS:ffff8b52bf404000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d50f43f62 CR3: 0000000488e9d000 CR4: 0000000000f50ef0
PKRU: 55555554
Call Trace:
bch2_trans_begin+0x590/0x710 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? bchfs_read+0xbd5/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
bchfs_read+0xf1/0xed0 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
? srso_alias_return_thunk+0x5/0xfbef5
? mempool_alloc_noprof+0x96/0xd0
? srso_alias_return_thunk+0x5/0xfbef5
? bio_alloc_bioset+0x2bd/0x2d0
bch2_readahead+0x2ff/0x590 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
read_pages+0x8f/0xf0
page_cache_ra_order+0x262/0x2a0
do_sync_mmap_readahead+0x123/0x220
filemap_fault.cold+0x2c/0x32d
bch2_page_fault+0xd8/0x190 [bcachefs cb0f8f3ba86efaa98c2ab4ebd4c454373cf48ed6]
__do_fault+0x31/0x1d0
do_pte_missing+0x541/0x1760
handle_mm_fault+0x4d0/0x7b0
do_user_addr_fault+0x2a2/0x590
exc_page_fault+0x66/0xd0
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7fe42c888ab1
Code: 8d 26 f3 c3 90 66 0f 1f 84 00 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 6f 07 66 0f 6e 4f 10 66 0f 6f 1d 2f d6 0a 00 0f 6f 26 66 0f 70 c0 1b f3 0f 6f 6e 10 66 0f 70 c9 1b f3 0f 6f
RSP: 002b:00007fe3c1ff8fd8 EFLAGS: 00010206
RAX: 0000000000020000 RBX: 0000000000004000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: 00007f5ae0f0db5f RDI: 00007fe3c1ff94a0
RBP: 00007fe3c1ff9020 R08: 000000007ef8320b R09: 00000000078bffff
R10: 00000000219c97a9 R11: 0000000000000246 R12: 00007fe3c1ff94a0
R13: 00007f5ae0f0db5f R14: 0000000000004000 R15: 0000000000004000
---[ end trace 0000000000000000 ]---
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94437576:0 len 32 ver 0 : durability: 0
crc32: c_size 32 size 32 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:160 gen 93 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 10 type reflink_v 0:94437576:0 len 32 ver 0 : refcount: 2 durability: 1
crc32: c_size 128 size 128 offset 96 nonce 0 csum none 0:0 compress incompressible
ptr: sdb1 1:313162:424 gen 1
crc32: c_size 32 size 32 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:160 gen 93 cached
new reconcile : need_rb=data_checksum replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94438472:0 len 32 ver 0 : durability: 0
crc32: c_size 32 size 32 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:192 gen 93 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 10 type reflink_v 0:94438472:0 len 32 ver 0 : refcount: 2 durability: 1
crc32: c_size 128 size 128 offset 96 nonce 0 csum none 0:0 compress incompressible
ptr: sdb1 1:313162:1320 gen 1
crc32: c_size 32 size 32 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:192 gen 93 cached
new reconcile : need_rb=data_checksum replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94438840:0 len 112 ver 0 : durability: 0
crc32: c_size 112 size 112 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:352 gen 93 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 9 type reflink_v 0:94438840:0 len 112 ver 0 : refcount: 2 durability: 1
crc32: c_size 112 size 112 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:352 gen 93 cached
ptr: sdb1 1:313162:1704 gen 1
new reconcile : need_rb=data_checksum replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94438728:0 len 128 ver 0 : durability: 0
crc32: c_size 128 size 128 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:224 gen 93 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 9 type reflink_v 0:94438728:0 len 128 ver 0 : refcount: 2 durability: 1
crc32: c_size 128 size 128 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:224 gen 93 cached
ptr: sdb1 1:313162:1576 gen 1
new reconcile : need_rb=data_checksum replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94438520:0 len 48 ver 0 : durability: 0
crc32: c_size 48 size 48 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:464 gen 93 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 10 type reflink_v 0:94438520:0 len 48 ver 0 : refcount: 2 durability: 1
crc32: c_size 128 size 128 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: sdb1 1:313162:1448 gen 1
crc32: c_size 48 size 48 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:242891:464 gen 93 cached
new reconcile : need_rb=data_checksum replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
bcachefs (8a4774a7-0c01-43f9-afc7-9bd6e151bc9a): extent with incorrect/missing reconcile opts:
u64s 7 type extent 0:94438600:0 len 80 ver 0 : durability: 0
crc32: c_size 80 size 80 offset 0 nonce 0 csum none 0:0 compress incompressible
ptr: nvme0n1p5 2:243050:0 gen 98 cached
new reconcile : need_rb=data_replicas,data_checksum hipri replicas=1 checksum=crc32c background_compression=zstd:15 background_target=hdd promote_target=ssd
data_checksum 0 != 1, fixing
Ratelimiting new instances of previous error
There was also something with __bch2_move_data_phys(): error EPERM. I don't remember when I encountered it but I think it is gone now. It was probably when I was using the git version of bcachefs module.