alpine getdents64 lost direntries

[chengyu-l]

I run a fuse client in alpine docker container, and then execute "ls -alh |wc -l " command. I found some directories were discarded.

the reason I guess: alpine linux getdents64 buffer size is 2048 byte, and jacobsa fuse is 4096 byte (op.Dst length), alpine cannot hold all the data, so it discards some.

Recurrence steps: create 5000 files in one directory, mount a client in alpine linux, execute "ls -alh |wc -l " command

Other: If I write less data each time（like 64 direntries）when the kenernl call ReadDir function, there will be no problem

[chengyu-l]

@stapelberg can you help me?

[stapelberg]

No, I don’t have time to help with this, sorry. But, if you can figure out a fix, I can review your PR.

[ashmeenkaur]

Seems to be duplicate of GoogleCloudPlatform/gcsfuse#1054 which was fixed in GCSFuse version 0.42.4
@chengyu-l can you check if you are still facing this error with latest GCSFuse version?