Random timeouts on `fread()` in `MaxMind/Db/Reader/Util.php:18`

[Xaymar]

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Steps to reproduce

1. Install the App in Nextcloud
2. Upload/Download any number of files.
3. Random requests will take several minutes to complete, or even hit the timeout of 5 minutes and be terminated on the spot.

Expected behaviour

This GeoIP check likely shouldn't even be running if the user has already agreed to the ToS, much less on every single request.

Actual behaviour

About 1 in 100 requests times out and results in the PHP process being terminated due to that. Below is the stacktrace, every single one of these is identical except for the pid:

[02-Mar-2026 21:19:07]  [pool www] pid 852518
script_filename = /mnt/main/nextcloud/web/remote.php
[0x00007fa8a7016520] fread() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Util.php:18
[0x00007fa8a7016460] read() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.php:128
[0x00007fa8a70163a0] decodeByType() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.>
[0x00007fa8a70162b0] decode() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.php:237
[0x00007fa8a70161e0] decodeMap() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.php>
[0x00007fa8a7016120] decodeByType() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader/Decoder.>
[0x00007fa8a7016030] decode() /mnt/main/nextcloud/web/apps/terms_of_service/vendor/maxmind-db/reader/src/MaxMind/Db/Reader.php:99
[0x00007fa8a7015f40] __construct() /mnt/main/nextcloud/web/apps/terms_of_service/lib/CountryDetector.php:31
[0x00007fa8a7015ea0] getCountry() /mnt/main/nextcloud/web/apps/terms_of_service/lib/Checker.php:100
[0x00007fa8a7015da0] currentUserHasSigned() /mnt/main/nextcloud/web/apps/terms_of_service/lib/Filesystem/Helper.php:101
[0x00007fa8a7015d30] verifyAccess() /mnt/main/nextcloud/web/apps/terms_of_service/lib/Filesystem/CacheWrapper.php:45
[0x00007fa8a7015cc0] formatCacheEntry() /mnt/main/nextcloud/web/lib/private/Files/Cache/Wrapper/CacheWrapper.php:110
[0x00007fa8a7015c50] array_map() /mnt/main/nextcloud/web/lib/private/Files/Cache/Wrapper/CacheWrapper.php:110
[0x00007fa8a7015bc0] getFolderContentsById() /mnt/main/nextcloud/web/lib/private/Files/View.php:1514
[0x00007fa8a7015920] getDirectoryContent() /mnt/main/nextcloud/web/lib/private/Files/Node/Folder.php:82
[0x00007fa8a70158b0] getDirectoryListing() /mnt/main/nextcloud/web/apps/dav/lib/Connector/Sabre/Directory.php:250
[0x00007fa8a70157c0] getChildren() /mnt/main/nextcloud/web/3rdparty/sabre/dav/lib/DAV/Tree.php:218
[0x00007fa89d6579c0] getChildren() /mnt/main/nextcloud/web/3rdparty/sabre/dav/lib/DAV/Server.php:900
[0x00007fa89d663d40] generatePathNodes() /mnt/main/nextcloud/web/3rdparty/sabre/dav/lib/DAV/Server.php:982
[0x00007fa89d6da440] getPropertiesIteratorForPath() /mnt/main/nextcloud/web/3rdparty/sabre/dav/lib/DAV/Server.php:1664

Turning off the app fixes the issue entirely.

Server configuration

• Web server: nginx
• Database: PostgreSQL + Redis + APCu
• PHP version: 8.4
• Nextcloud version: 32.0.6

List of activated apps

root@merenka:/mnt/main/nextcloud/web# php occ app:list
Enabled:
  - activity: 5.0.0
  - admin_audit: 1.22.0
  - app_api: 32.0.0
  - bruteforcesettings: 5.0.0
  - calendar: 6.2.1
  - camerarawpreviews: 0.8.8
  - circles: 32.0.0
  - cloud_federation_api: 1.16.0
  - collectives: 3.6.1
  - comments: 1.22.0
  - contacts: 8.3.4
  - contactsinteraction: 1.13.1
  - dashboard: 7.12.0
  - dav: 1.34.2
  - dav_push: 1.0.1
  - encryption: 2.20.0
  - end_to_end_encryption: 1.18.1
  - epubviewer: 1.9.2
  - federatedfilesharing: 1.22.0
  - files: 2.4.0
  - files_accesscontrol: 3.0.2
  - files_downloadlimit: 5.0.0-dev.0
  - files_pdfviewer: 5.0.0
  - files_photospheres: 1.32.0
  - files_reminders: 1.5.0
  - files_sharing: 1.24.1
  - files_trashbin: 1.22.0
  - files_versions: 1.25.0
  - firstrunwizard: 5.0.0
  - forms: 5.2.4
  - groupfolders: 20.1.12
  - logreader: 5.0.0
  - lookup_server_connector: 1.20.0
  - memories: 7.8.2
  - music: 3.0.0
  - notes: 4.13.0
  - notifications: 5.0.0
  - notify_push: 1.3.0
  - oauth2: 1.20.0
  - password_policy: 4.0.0
  - photos: 5.0.0
  - previewgenerator: 5.13.0
  - privacy: 4.0.0
  - profile: 1.1.0
  - provisioning_api: 1.22.0
  - recognize: 10.0.7
  - recommendations: 5.0.0
  - related_resources: 3.0.0
  - richdocuments: 9.0.3
  - serverinfo: 4.0.0
  - settings: 1.15.1
  - spreed: 22.0.9
  - suspicious_login: 10.0.0
  - systemtags: 1.22.0
  - tables: 1.0.4
  - text: 6.0.1
  - theming: 2.7.0
  - twofactor_backupcodes: 1.21.0
  - twofactor_nextcloud_notification: 6.0.0
  - unroundedcorners: 1.1.5
  - updatenotification: 1.22.0
  - user_status: 1.12.0
  - viewer: 5.0.0
  - webhook_listeners: 1.3.0
  - workflowengine: 2.14.0
Disabled:
  - audiocoverpreview: 0.9.0 (installed 0.9.0)
  - audiowaveform_preview_provider: 0.3.0 (installed 0.3.0)
  - federation: 1.22.0 (installed 1.22.0)
  - files_archive: 1.2.8 (installed 1.2.8)
  - files_external: 1.24.1
  - fulltextsearch_elasticsearch: 32.0.2 (installed 32.0.2)
  - fulltextsearch_sql: 1.3.3 (installed 1.3.3)
  - integration_deepl: 2.1.0 (installed 2.1.0)
  - journeys: 0.20.2 (installed 0.20.2)
  - localthumbs: 1.0.1 (installed 1.0.1)
  - nextcloud_announcements: 4.0.0 (installed 4.0.0-dev.0)
  - sharebymail: 1.22.0 (installed 1.22.0)
  - support: 4.0.0 (installed 4.0.0-dev.0)
  - survey_client: 4.0.0 (installed 4.0.0-dev.0)
  - tasks: 0.17.1 (installed 0.17.1)
  - terms_of_service: 4.6.1 (installed 4.6.1)
  - twofactor_totp: 14.0.0 (installed 14.0.0)
  - user_ldap: 1.23.0
  - weather_status: 1.12.0 (installed 1.12.0)
  - whiteboard: 1.5.7 (installed 1.5.7)

Nextcloud configuration

{
    "system": {
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "***REMOVED SENSITIVE VALUE***"
        ],
        "htaccess.RewriteBase": "\/",
        "htaccess.IgnoreFrontController": true,
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "pgsql",
        "version": "32.0.6.1",
        "overwrite.cli.url": "***REMOVED SENSITIVE VALUE***",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbtableprefix": "oc_",
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "dbpersistent": "true",
        "installed": true,
        "forbidden_filename_basenames": [
            "con",
            "prn",
            "aux",
            "nul",
            "com0",
            "com1",
            "com2",
            "com3",
            "com4",
            "com5",
            "com6",
            "com7",
            "com8",
            "com9",
            "com\u00b9",
            "com\u00b2",
            "com\u00b3",
            "lpt0",
            "lpt1",
            "lpt2",
            "lpt3",
            "lpt4",
            "lpt5",
            "lpt6",
            "lpt7",
            "lpt8",
            "lpt9",
            "lpt\u00b9",
            "lpt\u00b2",
            "lpt\u00b3"
        ],
        "forbidden_filename_characters": [
            "<",
            ">",
            ":",
            "\"",
            "|",
            "?",
            "*",
            "\\",
            "\/"
        ],
        "forbidden_filename_extensions": [
            " ",
            ".",
            ".filepart",
            ".part"
        ],
        "maintenance": false,
        "maintenance_window_start": 5,
        "defaultapp": "files",
        "default_phone_region": "DE",
        "filelocking.enabled": true,
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "memcache.local": "\\OC\\Memcache\\APCu",
        "log_rotate_size": 1048576,
        "memories.db.triggers.fcu": true,
        "memories.exiftool": "\/mnt\/main\/nextcloud\/web\/apps\/memories\/bin-ext\/exiftool-amd64-glibc",
        "memories.vod.path": "\/mnt\/main\/nextcloud\/web\/apps\/memories\/bin-ext\/go-vod-amd64",
        "memories.vod.ffmpeg": "\/usr\/bin\/ffmpeg",
        "memories.vod.ffprobe": "\/usr\/bin\/ffprobe",
        "app_install_overwrite": [],
        "theme": "",
        "loglevel": 2,
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 6379,
            "timeout": 0,
            "read_timeout": 0,
            "user": "nextcloud",
            "password": "***REMOVED SENSITIVE VALUE***",
            "dbindex": 1
        },
        "enable_previews": true,
        "preview_concurrency_all": 2048,
        "preview_concurrency_new": 24,
        "enabledPreviewProviders": [
            "OC\\Preview\\Image",
            "OC\\Preview\\BMP",
            "OC\\Preview\\EMF",
            "OC\\Preview\\GIF",
            "OC\\Preview\\HEIC",
            "OC\\Preview\\Illustrator",
            "OC\\Preview\\JPEG",
            "OC\\Preview\\Krita",
            "OC\\Preview\\Photoshop",
            "OC\\Preview\\PNG",
            "OC\\Preview\\SGI",
            "OC\\Preview\\SVG",
            "OC\\Preview\\TGA",
            "OC\\Preview\\TIFF",
            "OC\\Preview\\WebP",
            "OC\\Preview\\XBitmap",
            "OC\\Preview\\Movie",
            "OC\\Preview\\Imaginary",
            "OC\\Preview\\ImaginaryPDF",
            "OC\\Preview\\MarkDown",
            "OC\\Preview\\MSOffice2003",
            "OC\\Preview\\MSOffice2007",
            "OC\\Preview\\MSOfficeDoc",
            "OC\\Preview\\Office",
            "OC\\Preview\\OpenDocument",
            "OC\\Preview\\PDF",
            "OC\\Preview\\StarOffice",
            "OC\\Preview\\TXT",
            "OC\\Preview\\MP3",
            "OC\\Preview\\Font",
            "OC\\Preview\\Postscript"
        ],
        "preview_max_memory": 2048,
        "preview_ffmpeg_path": "\/usr\/bin\/ffmpeg",
        "files.chunked_upload.max_size": 262144,
        "files.chunked_upload.max_parallel_count": 24
    }
}

Browser

Irrelevant, happens with any of the Nextcloud apps on any of their versions.

[GretaD]

Hi, which version of TOS are you using?

[Xaymar]

I was using v4.6.1, though now I'm using none since it's not yet compatible with Nextcliud 33. It also states this in the OP under the list of apps.