Hello, I have a directory entry that cannot be stat-ed or unlinked. This issue persists across reboots, so it seems there is something wrong on disk. % ls -l /var/cache/ccache.bad/2/c ls: cannot access '/var/cache/ccache.bad/2/c/0390cb341d248c589c419007da68b2-7351.manifest': No such file or directory total 0 -????????? ? ? ? ? ? 0390cb341d248c589c419007da68b2-7351.manifest % uname -a Linux naomi 4.19.67 #4 SMP Sun Aug 18 14:35:39 EDT 2019 x86_64 AMD Phenom(tm) II X6 1055T Processor AuthenticAMD GNU/Linux % btrfs --version btrfs-progs v5.4 I have tried running btrfs check, and I get differing results based on the --mode switch: # btrfs check --readonly /dev/sda3 [1/7] checking root items [2/7] checking extents [3/7] checking free space cache [4/7] checking fs roots [5/7] checking only csums items (without verifying data) [6/7] checking root refs [7/7] checking quota groups Opening filesystem to check... Checking filesystem on /dev/sda3 UUID: 5e9dcab6-036d-40f1-8b40-24ab4c062bf6 found 284337733632 bytes used, no error found total csum bytes: 267182280 total tree bytes: 4498915328 total fs tree bytes: 3972464640 total extent tree bytes: 199819264 btree space waste bytes: 776711635 file data blocks allocated: 313928671232 referenced 279141621760 # btrfs check --readonly --mode=lowmem /dev/sda3 [1/7] checking root items [2/7] checking extents [3/7] checking free space cache [4/7] checking fs roots ERROR: root 5 INODE_ITEM[4065004] index 18446744073709551615 name 0390cb341d248c589c419007da68b2-7351.manifest filetype 1 missing ERROR: root 5 DIR ITEM[486836 13905] name 0390cb341d248c589c419007da68b2-7351.manifest filetype 1 mismath ERROR: root 5 DIR ITEM[486836 2543451757] mismatch name 0390cb341d248c589c419007da68b2-7351.manifest filetype 1 ERROR: errors found in fs roots Opening filesystem to check... Checking filesystem on /dev/sda3 UUID: 5e9dcab6-036d-40f1-8b40-24ab4c062bf6 found 284337733632 bytes used, error(s) found total csum bytes: 267182280 total tree bytes: 4498915328 total fs tree bytes: 3972464640 total extent tree bytes: 199819264 btree space waste bytes: 776711635 file data blocks allocated: 313928671232 referenced 279141621760 Please advise on possible next steps to diagnose and fix this.
