Date: Mon, 13 Jan 2003 23:22:41 +0100 From: Thomas Moestl <tmoestl@gmx.net> To: Roderick van Domburg <r.s.a.vandomburg@student.utwente.nl> Cc: freebsd-sparc64@FreeBSD.ORG Subject: Re: panic: trap: fast data access mmu miss Message-ID: <20030113222241.GB278@crow.dom2ip.de> In-Reply-To: <LJEKLJEBPDDLMNCFCIOGEEOACAAA.r.s.a.vandomburg@student.utwente.nl> References: <20030113004111.GD278@crow.dom2ip.de> <LJEKLJEBPDDLMNCFCIOGEEOACAAA.r.s.a.vandomburg@student.utwente.nl>
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On Mon, 2003/01/13 at 04:03:14 +0100, Roderick van Domburg wrote:
> > Oh, you have an isp in that box? In that case this is expected, please
> > remove this line:
> >
> > printf("iommu_dvma_valloc: out of DVMA space.\n");
> >
> > from sys/sparc64/sparc64/iommu.c and try again.
>
> Okay, did that. Unfortunately It doesn't mention much more than it did
> before:
>
> sym0: <875> port 0x2000-0x20ff mem 0x410a000-0x410afff, 0x4108000-0x41080ff
> irq 32 at device 3.1 on pci0
> sym0: No NVRAM, ID 7, Fast-20, SE, parity checking
> sym1: <875> port 0x2400-0x24ff mem 0x410e000-0x410efff, 0x410c000-0x410c0ff
> irq 38 at device 3.1 on pci0
> sym1: No NVRAM, ID 7, Fast-20, SE, parity checking
> __sym_calloc2: failed to allocate SCRIPTB0[1308]
> device_probe_and_attach: sym1 returned 6
> [cut]
> Mounting root from ufs:/dev/da0a
> setrootbyname: failed
> ffs_mountroot: can't find rootvp
> Root mount failed: 6
Damn. OK, here's another diff, with yet more diagnostics and an
increased IOTSB size. If this makes the problem go away, please supply
a complete dmesg.
- Thomas
P.S: I'm sorry that this is taking so many iterations to diagnose;
debugging-over-mail sucks :)
--
Thomas Moestl <tmoestl@gmx.net> http://www.tu-bs.de/~y0015675/
<tmm@FreeBSD.org> http://people.FreeBSD.org/~tmm/
PGP fingerprint: 1C97 A604 2BD0 E492 51D0 9C0F 1FE6 4F1D 419C 776C
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Index: sparc64/sparc64/iommu.c
===================================================================
RCS file: /ncvs/src/sys/sparc64/sparc64/iommu.c,v
retrieving revision 1.14
diff -u -r1.14 iommu.c
--- sparc64/sparc64/iommu.c 6 Jan 2003 21:59:54 -0000 1.14
+++ sparc64/sparc64/iommu.c 13 Jan 2003 22:01:55 -0000
@@ -517,10 +517,13 @@
{
struct resource *res;
struct bus_dmamap_res *bdr;
- bus_size_t align, bound, sgsize;
+ bus_size_t align, sgsize;
- if ((bdr = malloc(sizeof(*bdr), M_IOMMU, M_NOWAIT)) == NULL)
+ if ((bdr = malloc(sizeof(*bdr), M_IOMMU, M_NOWAIT)) == NULL) {
+ printf("iommu_dvma_valloc: res descriptor allocation "
+ "failed.\n");
return (EAGAIN);
+ }
/*
* If a boundary is specified, a map cannot be larger than it; however
* we do not clip currently, as that does not play well with the lazy
@@ -531,9 +534,8 @@
sgsize = round_io_page(size) >> IO_PAGE_SHIFT;
if (t->dt_boundary > 0 && t->dt_boundary < IO_PAGE_SIZE)
panic("iommu_dvmamap_load: illegal boundary specified");
- bound = ulmax(t->dt_boundary >> IO_PAGE_SHIFT, 1);
res = rman_reserve_resource_bound(&iommu_dvma_rman, 0L,
- t->dt_lowaddr, sgsize, bound >> IO_PAGE_SHIFT,
+ t->dt_lowaddr, sgsize, t->dt_boundary >> IO_PAGE_SHIFT,
RF_ACTIVE | rman_make_alignment_flags(align), NULL);
if (res == NULL)
return (ENOMEM);
@@ -766,8 +768,10 @@
pmap_t pmap = NULL;
KASSERT(buflen != 0, ("iommu_dvmamap_load_buffer: buflen == 0!"));
- if (buflen > dt->dt_maxsize)
+ if (buflen > dt->dt_maxsize) {
+ printf("iommu_dvmamap_load_buffer: buffer too long.\n");
return (EINVAL);
+ }
if (td != NULL)
pmap = vmspace_pmap(td->td_proc->p_vmspace);
@@ -813,6 +817,8 @@
sgcnt++;
if (sgcnt >= dt->dt_nsegments ||
sgcnt >= BUS_DMAMAP_NSEGS) {
+ printf("iommu_dvmamap_load_buffer: too many "
+ "segments.\n");
error = EFBIG;
break;
}
@@ -860,7 +866,7 @@
if (error != 0) {
iommu_dvmamap_vunload(is, map);
- (*cb)(cba, NULL, 0, error);
+ (*cb)(cba, sgs, 0, error);
} else {
/* Move the map to the end of the LRU queue. */
iommu_map_insq(map);
Index: sparc64/pci/psycho.c
===================================================================
RCS file: /ncvs/src/sys/sparc64/pci/psycho.c,v
retrieving revision 1.25
diff -u -r1.25 psycho.c
--- sparc64/pci/psycho.c 6 Jan 2003 21:59:53 -0000 1.25
+++ sparc64/pci/psycho.c 13 Jan 2003 22:08:51 -0000
@@ -565,7 +565,7 @@
sc->sc_is->is_sb[1] = 0;
if (OF_getproplen(sc->sc_node, "no-streaming-cache") < 0)
sc->sc_is->is_sb[0] = sc->sc_pcictl + PCR_STRBUF;
- psycho_iommu_init(sc, 2);
+ psycho_iommu_init(sc, 4);
} else {
/* Just copy IOMMU state, config tag and address */
sc->sc_is = osc->sc_is;
Index: dev/sym/sym_hipd.c
===================================================================
RCS file: /ncvs/src/sys/dev/sym/sym_hipd.c,v
retrieving revision 1.38
diff -u -r1.38 sym_hipd.c
--- dev/sym/sym_hipd.c 1 Jan 2003 18:48:52 -0000 1.38
+++ dev/sym/sym_hipd.c 13 Jan 2003 22:16:56 -0000
@@ -712,7 +712,10 @@
{
bus_addr_t *baddr;
baddr = (bus_addr_t *)arg;
- *baddr = segs->ds_addr;
+ if (error != 0)
+ *baddr = 0;
+ else
+ *baddr = segs->ds_addr;
}
static m_addr_t ___dma_getp(m_pool_s *mp)
@@ -720,16 +723,22 @@
m_vtob_s *vbp;
void *vaddr = 0;
bus_addr_t baddr = 0;
+ int err;
vbp = __sym_calloc(&mp0, sizeof(*vbp), "VTOB");
- if (!vbp)
+ if (!vbp) {
+ printf("___dma_getp: malloc failed\n");
goto out_err;
+ }
if (bus_dmamem_alloc(mp->dmat, &vaddr,
BUS_DMA_NOWAIT, &vbp->dmamap))
goto out_err;
- bus_dmamap_load(mp->dmat, vbp->dmamap, vaddr,
- MEMO_CLUSTER_SIZE, getbaddrcb, &baddr, 0);
+ if ((err = bus_dmamap_load(mp->dmat, vbp->dmamap, vaddr,
+ MEMO_CLUSTER_SIZE, getbaddrcb, &baddr, 0))) {
+ printf("bus_dmamap_load: error %d\n", err);
+ goto out_err;
+ }
if (baddr) {
int hc = VTOB_HASH_CODE(vaddr);
vbp->vaddr = (m_addr_t) vaddr;
@@ -744,8 +753,6 @@
bus_dmamap_unload(mp->dmat, vbp->dmamap);
if (vaddr)
bus_dmamem_free(mp->dmat, vaddr, vbp->dmamap);
- if (vbp->dmamap)
- bus_dmamap_destroy(mp->dmat, vbp->dmamap);
if (vbp)
__sym_mfree(&mp0, vbp, sizeof(*vbp), "VTOB");
return 0;
Index: kern/subr_rman.c
===================================================================
RCS file: /ncvs/src/sys/kern/subr_rman.c,v
retrieving revision 1.27
diff -u -r1.27 subr_rman.c
--- kern/subr_rman.c 27 Nov 2002 03:55:22 -0000 1.27
+++ kern/subr_rman.c 12 Jan 2003 22:45:20 -0000
@@ -229,7 +229,7 @@
*/
do {
rstart = (rstart + amask) & ~amask;
- if (((rstart ^ (rstart + count)) & bmask) != 0)
+ if (((rstart ^ (rstart + count - 1)) & bmask) != 0)
rstart += bound - (rstart & ~bmask);
} while ((rstart & amask) != 0 && rstart < end &&
rstart < s->r_end);
@@ -263,8 +263,11 @@
* two new allocations; the second requires but one.
*/
rv = malloc(sizeof *rv, M_RMAN, M_NOWAIT | M_ZERO);
- if (rv == 0)
+ if (rv == 0) {
+ printf("rman_reserve_resource: out of "
+ "memory.\n");
goto out;
+ }
rv->r_start = rstart;
rv->r_end = rstart + count - 1;
rv->r_flags = flags | RF_ALLOCATED;
@@ -282,6 +285,8 @@
*/
r = malloc(sizeof *r, M_RMAN, M_NOWAIT|M_ZERO);
if (r == 0) {
+ printf("rman_reserve_resource: out of "
+ "memory.\n");
free(rv, M_RMAN);
rv = 0;
goto out;
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