Your patch seem to solve only some  of the xfs issues for me.  Before 
the patch my system hung when booting.  This only occured I  had xfs 
compiled into the kernel.   After patching  things seemed fine, but 
durning "dbench 32" the system locked.  Upon rebooting and attempting to 
mount the filesystem I got this:
XFS mounting filesystem md(9,2)
Starting XFS recovery on filesystem: md(9,2) (dev: 9/2)
kernel BUG at page_buf.c:578!
<and so on>

PS- The results of ksymoops are attached.

Andrea Arcangeli wrote:

>was a collision between new xfs and new scheduler, you can use this fix
>in the meantime:
>
>--- 2.4.20pre5aa3/fs/xfs/pagebuf/page_buf.c.~1~	Wed Sep 11 05:17:46 2002
>+++ 2.4.20pre5aa3/fs/xfs/pagebuf/page_buf.c	Wed Sep 11 06:00:35 2002
>@@ -2055,9 +2055,9 @@ pagebuf_iodone_daemon(
> 	spin_unlock_irq(&current->sigmask_lock);
> 
> 	/* Migrate to the right CPU */
>-	current->cpus_allowed = 1UL << cpu;
>-	while (smp_processor_id() != cpu)
>-		schedule();
>+	set_cpus_allowed(current, 1UL << cpu);
>+	if (cpu() != cpu)
>+		BUG();
> 
> 	sprintf(current->comm, "pagebuf_io_CPU%d", bind_cpu);
> 	INIT_LIST_HEAD(&pagebuf_iodone_tq[cpu]);
>
>also remeber to apply the O_DIRECT fixes for reiserfs and ext3 (that
>were left over after merging the new nfs stuff). all will be fixed in
>next -aa of course.
>
>--- 2.4.19pre3aa1/fs/reiserfs/inode.c.~1~	Tue Mar 12 00:07:18 2002
>+++ 2.4.19pre3aa1/fs/reiserfs/inode.c	Tue Mar 12 01:24:21 2002
>@@ -2161,10 +2161,11 @@
> 	}
> }
> 
>-static int reiserfs_direct_io(int rw, struct inode *inode, 
>+static int reiserfs_direct_io(int rw, struct file * filp,
>                               struct kiobuf *iobuf, unsigned long blocknr,
> 			      int blocksize) 
> {
>+    struct inode * inode = filp->f_dentry->d_inode->i_mapping->host;
>     return generic_direct_IO(rw, inode, iobuf, blocknr, blocksize,
>                              reiserfs_get_block_direct_io) ;
> }
>--- 2.4.20pre5aa2/fs/ext3/inode.c.~1~	Mon Sep  9 02:38:08 2002
>+++ 2.4.20pre5aa2/fs/ext3/inode.c	Tue Sep 10 05:22:18 2002
>@@ -1385,9 +1385,10 @@ static int ext3_releasepage(struct page 
> }
> 
> static int
>-ext3_direct_IO(int rw, struct inode *inode, struct kiobuf *iobuf,
>+ext3_direct_IO(int rw, struct file * filp, struct kiobuf *iobuf,
> 		unsigned long blocknr, int blocksize)
> {
>+	struct inode * inode = filp->f_dentry->d_inode->i_mapping->host;
> 	struct ext3_inode_info *ei = EXT3_I(inode);
> 	handle_t *handle = NULL;
> 	int ret;
>
>Andrea
>-
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