Bug 29652
| Summary: | nfs line in /proc/mounts cannot be used to remount (proto=tcp) | ||
|---|---|---|---|
| Product: | File System | Reporter: | Mike Frysinger (vapier) |
| Component: | NFS | Assignee: | Trond Myklebust (trondmy) |
| Status: | RESOLVED OBSOLETE | ||
| Severity: | normal | CC: | alan |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.37 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | kernel config | ||
Created attachment 48642 [details] kernel config if i mount a local nfs tree and then take the status line from /proc/mounts to remount, the kernel returns back EINVAL on me. if i just drop the "proto=tcp", it works fine. # tail -n1 /proc/mounts 192.168.0.2:/tftpboot/ /mnt/tmp nfs4 rw,relatime,vers=4,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.0.2,minorversion=0,local_lock=none,addr=192.168.0.2 0 0 # mount `awk '$3 == "nfs4" { print $1" "$2" -o remount,"$4 }' /proc/mounts` # echo $? 32 # mount.nfs `awk '$3 == "nfs4" { print $1" "$2" -o remount,"$4 }' /proc/mounts` # echo $? 32 # strace -e mount -s 4096 -v mount.nfs `awk '$3 == "nfs4" { print $1" "$2" -o remount,"$4 }' /proc/mounts` mount("192.168.0.2:/tftpboot/", "/mnt/tmp", 0x4121bd, MS_REMOUNT|0x200000, "vers=4,rsize=524288,wsize=524288,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=192.168.0.2,minorversion=0,local_lock=none,addr=192.168.0.2") = -1 EINVAL (Invalid argument)