Messages in this thread | | | Date | Thu, 21 May 1998 13:52:30 +0200 | From | ak@muc ... | Subject | knfsd problem in late 2.1 |
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Hello,
knfsd doesn't work for me for some time now (I think since late 2.1.8x) exportfs always fails in its nfsctl(NFSCTL_EXPORT, ...) call with EINVAL. This time I tried it with 2.1.103-vger.
I finally instrumented the kernel to check where the error comes from. It comes from this code in nfsd/export.c:exp_export (printks added by me):
/* Look up the dentry */ err = -EINVAL; dentry = lookup_dentry(nxp->ex_path, NULL, 0); if (IS_ERR(dentry)) { goto out_unlock; }
err = -ENOENT; inode = dentry->d_inode; if(!inode) goto finish; err = -EINVAL; if(inode->i_dev != nxp->ex_dev || inode->i_ino != nxp->ex_ino) { printk(KERN_DEBUG "exp_export: paranoid: %d!=%d || %d!=%d\n", inode->i_dev, nxp->ex_dev, inode->i_ino, nxp->ex_ino); printk(KERN_DEBUG " inode = %p, path = %s, dentry = %p\n", inode, nxp->ex_path, dentry); /* I'm just being paranoid... */ goto finish; }
Result:
Exp_export: paranoid: 33554436!=2052 || 2!=2 inode = c3e17208, path = /u2, dentry = c320e6e0
I verified that /u2 is the correct dev_t for /u2. This means something in the kernel mangles the the i_dev field in the dentry's inode. Anyone have any idea what might cause that?
-Andi
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