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SubjectRe: With Daniel Phillips Patch (was: aic7xxx with 2.4.9 on 7899P)

Sven,

There is another mistake on the patch I sent you.

On buffer.c, instead

"page->zone == &pgdat_list->node_zones[ZONE_HIGHMEM]"
^^
you should use

"page->zone != &pgdat_list->node_zones[ZONE_HIGHMEM]"
^^

Ok?

On Wed, 22 Aug 2001, Sven Heinicke wrote:

>
> I tried you patch below, to compile I had to edit like 2451 of
> buffer.c, after the patch to be "page->zone" instead of "page-zone".
> After that the build want great. But part of the way through running
> bonnie++ the system crashed in a way that it didn't write anything to
> the sylog. The terminal was spewing:
>
> APIC error on CPU0: 0c(0c)
> APIC error on CPU1: 0c(0c)
>
> I've really gotta put that system back into production. As it seems
> much better off before the I started this thread with the 2.4.8-ac8
> kernel.
>
> Sven
>
> Marcelo Tosatti writes:
> >
> >
> > On Tue, 21 Aug 2001, Sven Heinicke wrote:
> >
> > >
> > > Forgive the sin of replying to my own message but Daniel Phillips
> > > replied to a different message with a patch to somebody getting a
> > > similar error to mine. Here is the result:
> > >
> > > Aug 20 15:10:33 ps1 kernel: cation failed (gfp=0x30/1).
> > > Aug 20 15:10:33 ps1 kernel: __alloc_pages: 0-order allocation failed
> > > (gfp=0x30/1).
> > > Aug 20 15:10:46 ps1 last message repeated 327 times
> > > Aug 20 15:10:47 ps1 kernel: cation failed (gfp=0x30/1).
> > > Aug 20 15:10:47 ps1 kernel: __alloc_pages: 0-order allocation failed
> > > (gfp=0x30/1).
> > > Aug 20 15:10:56 ps1 last message repeated 294 times
> > >
> > >
> > > Sven Heinicke writes:
> > > >
> > > > It's always a blessing and a curse when people seem to be haveing
> > > > problems with the same drivers as you. I started looking into this
> > > > when I user complained about disk access time. I think this is
> > > > related to the running aic7xxx topics.
> > > >
> > > > From my tests, I got a Dell 4400 who's Adaptec 7899P, according to
> > > > bonnie++, was writing slower then some of my my IDE drives on a
> > > > different system. I tried Red Hat's 2.4.3-12smp kernel and got a
> > > > little improvement. I then built 2.4.9 and started running bonnie++
> > > > again and my syslog gets filled up with such errors:
> > > >
> > > > Aug 20 14:23:33 ps1 kernel: __alloc_pages: 0-order all
> > > > Aug 20 14:23:36 ps1 last message repeated 376 times
> > > > Aug 20 14:23:36 ps1 kernel: ed.
> > > > Aug 20 14:23:36 ps1 kernel: __alloc_pages: 0-order all
> > > > Aug 20 14:23:44 ps1 last message repeated 376 times
> > > > Aug 20 14:23:44 ps1 kernel: ed.
> > > > Aug 20 14:23:44 ps1 kernel: __alloc_pages: 0-order all
> > > > Aug 20 14:23:44 ps1 last message repeated 363 times
> > > >
> > > > With slow access time. Please request more info if you think it might
> > > > help.
> >
> > Sven,
> >
> > Could you please try the following patch on top of 2.4.9?
> >
> > diff -Nur --exclude-from=exclude linux.orig/fs/buffer.c linux/fs/buffer.c
> > --- linux.orig/fs/buffer.c Wed Aug 15 18:25:49 2001
> > +++ linux/fs/buffer.c Tue Aug 21 04:54:01 2001
> > @@ -2447,7 +2447,8 @@
> > spin_unlock(&free_list[index].lock);
> > write_unlock(&hash_table_lock);
> > spin_unlock(&lru_list_lock);
> > - if (gfp_mask & __GFP_IO) {
> > + if (gfp_mask & __GFP_IO || (gfp_mask & __GFP_NOBOUNCE)
> > + && page-zone == &pgdat_list->node_zones[ZONE_HIGHMEM]) {
> > sync_page_buffers(bh, gfp_mask);
> > /* We waited synchronously, so we can free the buffers. */
> > if (gfp_mask & __GFP_WAIT) {
> > diff -Nur --exclude-from=exclude linux.orig/include/linux/mm.h linux/include/linux/mm.h
> > --- linux.orig/include/linux/mm.h Wed Aug 15 18:21:11 2001
> > +++ linux/include/linux/mm.h Tue Aug 21 04:52:08 2001
> > @@ -538,6 +538,8 @@
> > #define __GFP_HIGH 0x20 /* Should access emergency pools? */
> > #define __GFP_IO 0x40 /* Can start physical IO? */
> > #define __GFP_FS 0x80 /* Can call down to low-level FS? */
> > +#define __GFP_NOBOUNCE 0x100 /* Don't do any IO operation which may
> > + result in IO bouncing */
> >
> > #define GFP_NOIO (__GFP_HIGH | __GFP_WAIT)
> > #define GFP_NOFS (__GFP_HIGH | __GFP_WAIT | __GFP_IO)
> > diff -Nur --exclude-from=exclude linux.orig/include/linux/slab.h linux/include/linux/slab.h
> > --- linux.orig/include/linux/slab.h Wed Aug 15 18:21:13 2001
> > +++ linux/include/linux/slab.h Tue Aug 21 04:51:20 2001
> > @@ -23,7 +23,7 @@
> > #define SLAB_NFS GFP_NFS
> > #define SLAB_DMA GFP_DMA
> >
> > -#define SLAB_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS)
> > +#define SLAB_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS|__GFP_NOBOUNCE)
> > #define SLAB_NO_GROW 0x00001000UL /* don't grow a cache */
> >
> > /* flags to pass to kmem_cache_create().
> > diff -Nur --exclude-from=exclude linux.orig/mm/highmem.c linux/mm/highmem.c
> > --- linux.orig/mm/highmem.c Thu Aug 16 13:42:45 2001
> > +++ linux/mm/highmem.c Tue Aug 21 04:50:08 2001
> > @@ -321,7 +321,7 @@
> > struct page *page;
> >
> > repeat_alloc:
> > - page = alloc_page(GFP_NOIO);
> > + page = alloc_page(GFP_NOIO|__GFP_NOBOUNCE);
> > if (page)
> > return page;
> > /*
> > @@ -359,7 +359,7 @@
> > struct buffer_head *bh;
> >
> > repeat_alloc:
> > - bh = kmem_cache_alloc(bh_cachep, SLAB_NOIO);
> > + bh = kmem_cache_alloc(bh_cachep, SLAB_NOIO|__GFP_NOBOUNCE);
> > if (bh)
> > return bh;
> > /*
> > diff -Nur --exclude-from=exclude linux.orig/mm/page_alloc.c linux/mm/page_alloc.c
> > --- linux.orig/mm/page_alloc.c Thu Aug 16 13:43:02 2001
> > +++ linux/mm/page_alloc.c Tue Aug 21 04:51:03 2001
> > @@ -398,7 +398,8 @@
> > * - we're /really/ tight on memory
> > * --> try to free pages ourselves with page_launder
> > */
> > - if (!(current->flags & PF_MEMALLOC)) {
> > + if (!(current->flags & PF_MEMALLOC)
> > + || ((gfp_mask & __GFP_NOBOUNCE) && !order)) {
> > /*
> > * Are we dealing with a higher order allocation?
> > *
> >
> -
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