On Wed, Nov 14, 2007 at 03:19:43PM -0800, Kaz Kylheku wrote:
> I have an NFS problem on a multi-node MIPS system running kernel
> 126.96.36.199. NFS utils is 1.1.0. ABI is n32.
> One node (call it primary) exports a directory which is mounted by
> several others (the secondaries) as their root filesystem.
> If I run "exportfs -a" on the primary, the secondary nodes lose their
> root filesystem and so everything stops working.
> I turned on all NFS debugging on a secondary node (sysctl -w
> sunrpc.nfs_debug=65535). What is happening is that NFS operations
> suddenly start returning error -151 (stale NFS filehandle).
> I don't see exportfs causing this problem on other systems. If I run
> "exportfs -a" on a big NFS server (Fedora Core 5, i686) which has lots
> of diskless clients, nothing bad happens. (And some of those diskless
> clients are MIPS systems just like this one!)
> I'm pretty sure that exportfs -a shouldn't screw up the existing mounted
> Could there be some ABI problem that corrupts up the effect of the
> re-exporting operation on the server?
Can you test below patch?
Signed-off-by: Ralf Baechle <firstname.lastname@example.org>
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 118be24..01993ec 100644
@@ -293,7 +293,7 @@ EXPORT(sysn32_call_table)
PTR sys_ni_syscall /* 6170, was get_kernel_syms */
PTR sys_ni_syscall /* was query_module */
- PTR sys_nfsservctl
+ PTR compat_sys_nfsservctl
PTR sys_ni_syscall /* res. for getpmsg */
PTR sys_ni_syscall /* 6175 for putpmsg */
PTR sys_ni_syscall /* res. for afs_syscall */