[GH-ISSUE #1350] ls: reading directory Input/output error on top level directory #722

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opened 2026-03-04 01:48:12 +03:00 by kerem · 3 comments

kerem commented

2026-03-04 01:48:12 +03:00

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Originally created by @chethanshetty110 on GitHub (Aug 4, 2020).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1350

Additional Information

The following information is very important in order to help us to help you. Omission of the following details may delay your support request or receive no attention at all.
Keep in mind that the commands we provide to retrieve information are oriented to GNU/Linux Distributions, so you could need to use others if you use s3fs on macOS or BSD

Version of s3fs being used (s3fs --version)

V1.86

Version of fuse being used (pkg-config --modversion fuse, rpm -qi fuse, dpkg -s fuse)

2.9.7-1ubuntu1

Kernel information (uname -r)

5.3.0-1032-aws

GNU/Linux Distribution, if applicable (cat /etc/os-release)

NAME="Ubuntu"
VERSION="18.04.4 LTS (Bionic Beaver)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 18.04.4 LTS"
VERSION_ID="18.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic

s3fs command line used, if applicable

/usr/local/bin/s3fs -o allow_other -o gid=1000 -o umask=000 -o iam_role=role bucket_name /mnt/intermediate_bucket

/etc/fstab entry, if applicable

s3fs syslog messages (grep s3fs /var/log/syslog, journalctl | grep s3fs, or s3fs outputs)

if you execute s3fs with dbglevel, curldbg option, you can get detail debug messages

Details about issue

We are able to list the subdirectories in the bucket but when we try to list root level directory it throws below error.

ls: reading directory Input/output error

Originally created by @chethanshetty110 on GitHub (Aug 4, 2020). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1350 ### Additional Information _The following information is very important in order to help us to help you. Omission of the following details may delay your support request or receive no attention at all._ _Keep in mind that the commands we provide to retrieve information are oriented to GNU/Linux Distributions, so you could need to use others if you use s3fs on macOS or BSD_ #### Version of s3fs being used (s3fs --version) V1.86 #### Version of fuse being used (pkg-config --modversion fuse, rpm -qi fuse, dpkg -s fuse) 2.9.7-1ubuntu1 #### Kernel information (uname -r) 5.3.0-1032-aws #### GNU/Linux Distribution, if applicable (cat /etc/os-release) NAME="Ubuntu" VERSION="18.04.4 LTS (Bionic Beaver)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 18.04.4 LTS" VERSION_ID="18.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=bionic UBUNTU_CODENAME=bionic #### s3fs command line used, if applicable /usr/local/bin/s3fs -o allow_other -o gid=1000 -o umask=000 -o iam_role=role bucket_name /mnt/intermediate_bucket #### /etc/fstab entry, if applicable ``` ``` #### s3fs syslog messages (grep s3fs /var/log/syslog, journalctl | grep s3fs, or s3fs outputs) _if you execute s3fs with dbglevel, curldbg option, you can get detail debug messages_ ``` ``` ### Details about issue We are able to list the subdirectories in the bucket but when we try to list root level directory it throws below error. ls: reading directory Input/output error

kerem

2026-03-04 01:48:12 +03:00

closed this issue
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kerem commented

2026-03-04 01:48:13 +03:00

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@gaul commented on GitHub (Aug 4, 2020):

Could you run s3fs again with the -f -d flags? This will help us debug the symptoms.

@gaul commented on GitHub (Aug 4, 2020): Could you run s3fs again with the `-f -d` flags? This will help us debug the symptoms.

kerem commented

2026-03-04 01:48:13 +03:00

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@chethanshetty110 commented on GitHub (Aug 5, 2020):

At the end of the logs we get the below message. Since this a corporate account, we can't share details of the bucket and contents of the bucket.

[INF] s3fs.cpp:readdir_multi_head(2539): Could not find / file in stat cache.
[INF] s3fs.cpp:readdir_multi_head(2539): Could not find /folder1 file in stat cache.
[INF] s3fs.cpp:readdir_multi_head(2539): Could not find /folder2 file in stat cache.

@chethanshetty110 commented on GitHub (Aug 5, 2020): At the end of the logs we get the below message. Since this a corporate account, we can't share details of the bucket and contents of the bucket. [INF] s3fs.cpp:readdir_multi_head(2539): Could not find / file in stat cache. [INF] s3fs.cpp:readdir_multi_head(2539): Could not find /folder1 file in stat cache. [INF] s3fs.cpp:readdir_multi_head(2539): Could not find /folder2 file in stat cache.

kerem commented

2026-03-04 01:48:13 +03:00

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@gaul commented on GitHub (Aug 16, 2020):

Sorry, there has to be more context for us to investigate.

@gaul commented on GitHub (Aug 16, 2020): Sorry, there has to be more context for us to investigate.