gentoolaptop / # systemctl status cachefilesd
● cachefilesd.service - Local network file caching management daemon
Loaded: loaded (/lib/systemd/system/cachefilesd.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2019-01-04 19:01:42 CST; 4s ago
Process: 11965 ExecStart=/sbin/cachefilesd -n -f /etc/cachefilesd.conf (code=exited, status=1/FAILURE)
Process: 11964 ExecStartPre=/sbin/modprobe -qab cachefiles (code=exited, status=0/SUCCESS)
Main PID: 11965 (code=exited, status=1/FAILURE)
Jan 04 19:01:42 gentoolaptop systemd[1]: Starting Local network file caching management daemon...
Jan 04 19:01:42 gentoolaptop systemd[1]: Started Local network file caching management daemon.
Jan 04 19:01:42 gentoolaptop cachefilesd[11965]: Can't confirm cache location: errno 2 (No such file or directory)
Jan 04 19:01:42 gentoolaptop systemd[1]: cachefilesd.service: Main process exited, code=exited, status=1/FAILURE
Jan 04 19:01:42 gentoolaptop systemd[1]: cachefilesd.service: Failed with result 'exit-code'.
缓存目录在cachefiles.conf中设置为/var/cache/fscache：
dir /var/cache/fscache
tag mycache
brun 10%
bcull 7%
bstop 3%
frun 10%
fcull 7%
fstop 3%
# Assuming you're using SELinux with the default security policy included in
# this package
#secctx system_u:system_r:cachefiles_kernel_t:s0
如果我尝试创建该目录，服务将因以下问题而失败：
gentoolaptop / # systemctl status cachefilesd
● cachefilesd.service - Local network file caching management daemon
Loaded: loaded (/lib/systemd/system/cachefilesd.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Fri 2019-01-04 17:04:52 CST; 1h 51min ago
Process: 9679 ExecStart=/sbin/cachefilesd -n -f /etc/cachefilesd.conf (code=exited, status=1/FAILURE)
Process: 9678 ExecStartPre=/sbin/modprobe -qab cachefiles (code=exited, status=0/SUCCESS)
Main PID: 9679 (code=exited, status=1/FAILURE)
Jan 04 17:04:52 gentoolaptop systemd[1]: Starting Local network file caching management daemon...
Jan 04 17:04:52 gentoolaptop systemd[1]: Started Local network file caching management daemon.
Jan 04 17:04:52 gentoolaptop cachefilesd[9679]: About to bind cache
Jan 04 17:04:52 gentoolaptop systemd[1]: cachefilesd.service: Main process exited, code=exited, status=1/FAILURE
Jan 04 17:04:52 gentoolaptop cachefilesd[9679]: CacheFiles bind failed: errno 105 (No buffer space available)
Jan 04 17:04:52 gentoolaptop systemd[1]: cachefilesd.service: Failed with result 'exit-code'.
chmod 777 没有效果。
dmesg：
[ 924.197705] CacheFiles: mkdir cache failed with error -105
[ 924.197708] CacheFiles: Failed to register: -105
fstab：
gentooserver:/ /media/store nfs4 rw,_netdev,noauto,user,lazytime,exec,sync,tcp,vers=4.1,fsc 0 0
答案1
显然 3 GB 的可用空间不够。您需要 >20。