On Feb 24, 2004, at 2:20 PM, Chris Bergmann wrote: Sorry, i should have given a better description. I am using the normal (internal) hfs_* routines to open the file. However, it's the locking routines (which are system-provided routines which work on the vnode) which I'm having trouble with. Eg. I try something like this: GetFileInfo(vcb, kRootDirID, ".filename", &cnattr, &cfork); .. retval = hfs_getnewvnode(hfsmp, NULL, &cndesc, 0, &cnattr, &cfork, &vp); VREF(vp); VOP_UNLOCK(vp, 0, p); .. which I thought would have been a safe enough operation? this is done with the kernel funnel locked. Again, avoid using a vnode at all. Try to use the lower levels of HFS to manipulate the file directly. Having a vnode of any kind attached to your 'magic' files is just asking for trouble, unless you are going to treat them 100% like real files. IOW, do it "just like HFS" wherever you can. = Mike _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.