[linux-cifs-client] RHEL Slowness in mounting a smb share

[Jeff Layton]

On Fri, 17 Aug 2007 08:24:53 -0500
Paul Edgar <javaoops at us.ibm.com> wrote:

> Ever since RHEL4 I have noticed that mounting a smb share on RHEL is 
> slow, very slow.
> 
> lstat64("/etc/mtab", {st_mode=S_IFREG|0644, st_size=376, ...}) = 0
> stat64("/sbin/mount.smbfs", {st_mode=S_IFREG|0755, st_size=727684, ...}) = 0
> clone(child_stack=0, 
> flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, 
> child_tidptr=0xb7f38ae8) = 25661
> wait4(-1, Password:
> [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 25661
> --- SIGCHLD (Child exited) @ 0 (0) ---
> exit_group(0)                           = ?
> Process 25660 detached
> 
> real    0m32.632s
> user    0m0.048s
> sys     0m0.056s
> 
> 

This list is for CIFS. smbfs is pretty much orphaned upstream, so if
you can switch to using CIFS, that's highly recommended. The CIFS code
is in much better shape.

That said, you're probably hitting this smbfs bug which should be fixed
in the upcoming 4.6 update:

https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=168280

You may want to test the RHEL4 kernels on my people page and see if
they help:

http://people.redhat.com/jlayton

-- 
Jeff Layton <jlayton at redhat.com>