Today I’m getting intermittent I/O errors on some of my Machines deployments (twice so far):
root@:/$ ls
bash: /bin/ls: Input/output error
There are a lot of EXT4-fs errors in kernel log:
[ 195.772754] blk_update_request: I/O error, dev vda, sector 295016 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 195.798478] blk_update_request: I/O error, dev vda, sector 4260448 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 195.799684] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #131238: comm bash: reading directory lblock 0
[ 195.800848] blk_update_request: I/O error, dev vda, sector 74064 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 195.801886] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #31: comm bash: reading directory lblock 0
[ 195.802986] blk_update_request: I/O error, dev vda, sector 76768 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 195.804059] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #2198: comm bash: reading directory lblock 0
[ 203.753528] print_req_error: 5 callbacks suppressed
[ 203.753538] blk_update_request: I/O error, dev vda, sector 12858976 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 203.778675] blk_update_request: I/O error, dev vda, sector 12858976 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
[ 217.382647] blk_update_request: I/O error, dev vda, sector 4260448 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 217.384006] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #131238: comm dmesg: reading directory lblock 0
[ 217.409199] blk_update_request: I/O error, dev vda, sector 74064 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 217.410285] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #31: comm dmesg: reading directory lblock 0
[ 217.435259] blk_update_request: I/O error, dev vda, sector 76768 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0
[ 217.437243] EXT4-fs error (device vda): __ext4_find_entry:1534: inode #2198: comm dmesg: reading directory lblock 0