Date: Wed, 15 Sep 2004 15:40:00 +0300 From: Erik Udo <erik.u@dnainternet.net> To: freebsd-current@freebsd.org Subject: Laggy audio and patch that fixes it at the cost of gnome Message-ID: <41483820.1070503@dnainternet.net>
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In the latest RELENG_5_2:
I added the following patch, with success. It worked just fine in kde,
but when i installed gnome and i was loading it(i got the "loading
gnome.." splashscreen) and then i got page fault.
So if anyone could tell me how i can keep that patch and still be able
to use gnome? And what about 5.3? I hope it doesnt have that audio lag
feature when i go back or forward in mplayer or xmms or any other app.
--------------000706070405030702070302
Content-Type: text/plain;
name="dsp.1.67-1.70.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="dsp.1.67-1.70.patch"
--- /sys/dev/sound/pcm/dsp.c.orig Tue Nov 11 11:38:28 2003
+++ /sys/dev/sound/pcm/dsp.c Wed Jan 21 11:51:31 2004
@@ -29,7 +29,7 @@
#include <dev/sound/pcm/sound.h>
-SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/dsp.c,v 1.67 2003/11/11 05:38:28 scottl Exp $");
+SND_DECLARE_FILE("$FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/dsp.c,v 1.70 2004/01/20 05:30:09 matk Exp $");
#define OLDPCM_IOCTL
@@ -41,7 +41,7 @@
static d_poll_t dsp_poll;
static d_mmap_t dsp_mmap;
-static struct cdevsw dsp_cdevsw = {
+struct cdevsw dsp_cdevsw = {
.d_open = dsp_open,
.d_close = dsp_close,
.d_read = dsp_read,
@@ -455,15 +455,11 @@
* on dsp devices.
*/
- if (IOCGROUP(cmd) == 'M') {
- dev_t pdev;
-
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(PCMUNIT(i_dev), SND_DEV_CTL, 0));
- return mixer_ioctl(pdev, cmd, arg, mode, td);
- }
+ d = dsp_get_info(i_dev);
+ if (IOCGROUP(cmd) == 'M')
+ return mixer_ioctl(d->mixer_dev, cmd, arg, mode, td);
s = spltty();
- d = dsp_get_info(i_dev);
getchns(i_dev, &rdch, &wrch, 0);
kill = 0;
@@ -580,7 +576,7 @@
(wrch? chn_getformats(wrch) : 0xffffffff);
if (rdch && wrch)
p->formats |= (dsp_get_flags(i_dev) & SD_F_SIMPLEX)? 0 : AFMT_FULLDUPLEX;
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(PCMUNIT(i_dev), SND_DEV_CTL, 0));
+ pdev = d->mixer_dev;
p->mixers = 1; /* default: one mixer */
p->inputs = pdev->si_drv1? mix_getdevs(pdev->si_drv1) : 0;
p->left = p->right = 100;
@@ -664,10 +660,18 @@
case SNDCTL_DSP_RESET:
DEB(printf("dsp reset\n"));
- if (wrch)
+ if (wrch) {
+ CHN_LOCK(wrch);
chn_abort(wrch);
- if (rdch)
+ chn_resetbuf(wrch);
+ CHN_UNLOCK(wrch);
+ }
+ if (rdch) {
+ CHN_LOCK(rdch);
chn_abort(rdch);
+ chn_resetbuf(rdch);
+ CHN_UNLOCK(rdch);
+ }
break;
case SNDCTL_DSP_SYNC:
@@ -1048,60 +1052,23 @@
return 0;
}
-int
-dsp_register(int unit, int channel)
-{
- make_dev(&dsp_cdevsw, PCMMKMINOR(unit, SND_DEV_DSP, channel),
- UID_ROOT, GID_WHEEL, 0666, "dsp%d.%d", unit, channel);
- make_dev(&dsp_cdevsw, PCMMKMINOR(unit, SND_DEV_DSP16, channel),
- UID_ROOT, GID_WHEEL, 0666, "dspW%d.%d", unit, channel);
- make_dev(&dsp_cdevsw, PCMMKMINOR(unit, SND_DEV_AUDIO, channel),
- UID_ROOT, GID_WHEEL, 0666, "audio%d.%d", unit, channel);
-
- return 0;
-}
-
-int
-dsp_registerrec(int unit, int channel)
-{
- make_dev(&dsp_cdevsw, PCMMKMINOR(unit, SND_DEV_DSPREC, channel),
- UID_ROOT, GID_WHEEL, 0666, "dspr%d.%d", unit, channel);
-
- return 0;
-}
-
-int
-dsp_unregister(int unit, int channel)
-{
- dev_t pdev;
-
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, SND_DEV_DSP, channel));
- destroy_dev(pdev);
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, SND_DEV_DSP16, channel));
- destroy_dev(pdev);
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, SND_DEV_AUDIO, channel));
- destroy_dev(pdev);
-
- return 0;
-}
-
-int
-dsp_unregisterrec(int unit, int channel)
-{
- dev_t pdev;
-
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, SND_DEV_DSPREC, channel));
- destroy_dev(pdev);
-
- return 0;
-}
-
#ifdef USING_DEVFS
+
+/*
+ * Clone logic is this:
+ * x E X = {dsp, dspW, audio}
+ * x -> x${sysctl("hw.snd.unit")}
+ * xN->
+ * for i N = 1 to channels of device N
+ * if xN.i isn't busy, return its dev_t
+ */
static void
dsp_clone(void *arg, char *name, int namelen, dev_t *dev)
{
dev_t pdev;
- int i, cont, unit, devtype;
+ struct snddev_info *pcm_dev;
+ struct snddev_channel *pcm_chan;
+ int i, unit, devtype;
int devtypes[3] = {SND_DEV_DSP, SND_DEV_DSP16, SND_DEV_AUDIO};
char *devnames[3] = {"dsp", "dspW", "audio"};
@@ -1124,16 +1091,27 @@
if (unit == -1 || unit >= devclass_get_maxunit(pcm_devclass))
return;
- cont = 1;
- for (i = 0; cont; i++) {
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, devtype, i));
- if (pdev->si_flags & SI_NAMED) {
- if ((pdev->si_drv1 == NULL) && (pdev->si_drv2 == NULL)) {
- *dev = pdev;
- return;
- }
- } else {
- cont = 0;
+ pcm_dev = devclass_get_softc(pcm_devclass, unit);
+
+ SLIST_FOREACH(pcm_chan, &pcm_dev->channels, link) {
+
+ switch(devtype) {
+ case SND_DEV_DSP:
+ pdev = pcm_chan->dsp_devt;
+ break;
+ case SND_DEV_DSP16:
+ pdev = pcm_chan->dspW_devt;
+ break;
+ case SND_DEV_AUDIO:
+ pdev = pcm_chan->audio_devt;
+ break;
+ default:
+ panic("Unknown devtype %d", devtype);
+ }
+
+ if ((pdev->si_drv1 == NULL) && (pdev->si_drv2 == NULL)) {
+ *dev = pdev;
+ return;
}
}
}
--- /sys/dev/sound/pcm/dsp.h.orig Sun Sep 7 23:28:03 2003
+++ /sys/dev/sound/pcm/dsp.h Wed Jan 21 12:00:40 2004
@@ -23,10 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $FreeBSD: src/sys/dev/sound/pcm/dsp.h,v 1.7 2003/09/07 16:28:03 cg Exp $
+ * $FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/dsp.h,v 1.8 2004/01/20 03:58:57 matk Exp $
*/
-int dsp_register(int unit, int channel);
-int dsp_registerrec(int unit, int channel);
-int dsp_unregister(int unit, int channel);
-int dsp_unregisterrec(int unit, int channel);
+extern struct cdevsw dsp_cdevsw;
--- /sys/dev/sound/pcm/sound.h.orig Sun Sep 7 23:28:03 2003
+++ /sys/dev/sound/pcm/sound.h Wed Jan 21 12:06:35 2004
@@ -24,7 +24,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
- * $FreeBSD: src/sys/dev/sound/pcm/sound.h,v 1.52 2003/09/07 16:28:03 cg Exp $
+ * $FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/sound.h,v 1.54 2004/01/20 03:58:57 matk Exp $
*/
/*
@@ -98,7 +98,6 @@
#include <dev/sound/pcm/channel.h>
#include <dev/sound/pcm/feeder.h>
#include <dev/sound/pcm/mixer.h>
-#include <dev/sound/pcm/dsp.h>
#define PCM_SOFTC_SIZE 512
@@ -222,8 +221,8 @@
struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo);
int pcm_chn_destroy(struct pcm_channel *ch);
-int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev);
-int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev);
+int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch);
+int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch);
int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo);
unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max);
@@ -234,6 +233,7 @@
void pcm_setflags(device_t dev, u_int32_t val);
void *pcm_getdevinfo(device_t dev);
+
int snd_setup_intr(device_t dev, struct resource *res, int flags,
driver_intr_t hand, void *param, void **cookiep);
@@ -276,12 +276,17 @@
/*
* this is rather kludgey- we need to duplicate these struct def'ns from sound.c
* so that the macro versions of pcm_{,un}lock can dereference them.
+ * we also have to do this now makedev() has gone away.
*/
-#ifdef PCM_DEBUG_MTX
struct snddev_channel {
SLIST_ENTRY(snddev_channel) link;
struct pcm_channel *channel;
+ int chan_num;
+ dev_t dsp_devt;
+ dev_t dspW_devt;
+ dev_t audio_devt;
+ dev_t dspr_devt;
};
struct snddev_info {
@@ -297,8 +302,11 @@
struct sysctl_ctx_list sysctl_tree;
struct sysctl_oid *sysctl_tree_top;
struct mtx *lock;
+ dev_t mixer_dev;
+
};
+#ifdef PCM_DEBUG_MTX
#define pcm_lock(d) mtx_lock(((struct snddev_info *)(d))->lock)
#define pcm_unlock(d) mtx_unlock(((struct snddev_info *)(d))->lock)
#else
--- /sys/dev/sound/pcm/sound.c.orig Sun Sep 7 23:28:03 2003
+++ /sys/dev/sound/pcm/sound.c Wed Jan 21 12:05:25 2004
@@ -27,33 +27,12 @@
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/vchan.h>
+#include <dev/sound/pcm/dsp.h>
#include <sys/sysctl.h>
#include "feeder_if.h"
-SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/sound.c,v 1.85 2003/09/07 16:28:03 cg Exp $");
-
-#ifndef PCM_DEBUG_MTX
-struct snddev_channel {
- SLIST_ENTRY(snddev_channel) link;
- struct pcm_channel *channel;
-};
-
-struct snddev_info {
- SLIST_HEAD(, snddev_channel) channels;
- struct pcm_channel *fakechan;
- unsigned devcount, playcount, reccount, vchancount;
- unsigned flags;
- int inprog;
- unsigned int bufsz;
- void *devinfo;
- device_t dev;
- char status[SND_STATUSLEN];
- struct sysctl_ctx_list sysctl_tree;
- struct sysctl_oid *sysctl_tree_top;
- struct mtx *lock;
-};
-#endif
+SND_DECLARE_FILE("$FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/sound.c,v 1.88 2004/01/20 03:58:57 matk Exp $");
devclass_t pcm_devclass;
@@ -96,7 +75,7 @@
m = malloc(sizeof(*m), M_DEVBUF, M_WAITOK | M_ZERO);
if (m == NULL)
return NULL;
- mtx_init(m, desc, type, MTX_RECURSE);
+ mtx_init(m, desc, type, MTX_DEF | MTX_RECURSE);
return m;
#else
return (void *)0xcafebabe;
@@ -435,11 +414,20 @@
}
int
-pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev)
+pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch)
{
struct snddev_channel *sce, *tmp, *after;
- int unit = device_get_unit(d->dev);
- int x = -1;
+ int device = device_get_unit(d->dev);
+
+ /*
+ * Note it's confusing nomenclature.
+ * dev_t
+ * device -> pcm_device
+ * unit -> pcm_channel
+ * channel -> snddev_channel
+ * device_t
+ * unit -> pcm_device
+ */
sce = malloc(sizeof(*sce), M_DEVBUF, M_WAITOK | M_ZERO);
if (!sce) {
@@ -448,6 +436,7 @@
snd_mtxlock(d->lock);
sce->channel = ch;
+ sce->chan_num= d->devcount++;
if (SLIST_EMPTY(&d->channels)) {
SLIST_INSERT_HEAD(&d->channels, sce, link);
} else {
@@ -457,24 +446,36 @@
}
SLIST_INSERT_AFTER(after, sce, link);
}
- if (mkdev)
- x = d->devcount++;
snd_mtxunlock(d->lock);
-
- if (mkdev) {
- dsp_register(unit, x);
- if (ch->direction == PCMDIR_REC)
- dsp_registerrec(unit, ch->num);
- }
+ sce->dsp_devt= make_dev(&dsp_cdevsw,
+ PCMMKMINOR(device, SND_DEV_DSP, sce->chan_num),
+ UID_ROOT, GID_WHEEL, 0666, "dsp%d.%d",
+ device, sce->chan_num);
+
+ sce->dspW_devt= make_dev(&dsp_cdevsw,
+ PCMMKMINOR(device, SND_DEV_DSP16, sce->chan_num),
+ UID_ROOT, GID_WHEEL, 0666, "dspW%d.%d",
+ device, sce->chan_num);
+
+ sce->audio_devt= make_dev(&dsp_cdevsw,
+ PCMMKMINOR(device, SND_DEV_AUDIO, sce->chan_num),
+ UID_ROOT, GID_WHEEL, 0666, "audio%d.%d",
+ device, sce->chan_num);
+
+ if (ch->direction == PCMDIR_REC)
+ sce->dspr_devt = make_dev(&dsp_cdevsw,
+ PCMMKMINOR(device, SND_DEV_DSPREC,
+ sce->chan_num), UID_ROOT, GID_WHEEL,
+ 0666, "dspr%d.%d", device, sce->chan_num);
return 0;
}
int
-pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev)
+pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch)
{
struct snddev_channel *sce;
- int unit = device_get_unit(d->dev);
+#if 0
int ourlock;
ourlock = 0;
@@ -482,21 +483,19 @@
snd_mtxlock(d->lock);
ourlock = 1;
}
+#endif
SLIST_FOREACH(sce, &d->channels, link) {
if (sce->channel == ch)
goto gotit;
}
+#if 0
if (ourlock)
snd_mtxunlock(d->lock);
+#endif
return EINVAL;
gotit:
SLIST_REMOVE(&d->channels, sce, snddev_channel, link);
- if (rmdev) {
- dsp_unregister(unit, --d->devcount);
- if (ch->direction == PCMDIR_REC)
- dsp_unregisterrec(unit, ch->num);
- }
if (ch->direction == PCMDIR_REC)
d->reccount--;
@@ -505,8 +504,10 @@
else
d->playcount--;
+#if 0
if (ourlock)
snd_mtxunlock(d->lock);
+#endif
free(sce, M_DEVBUF);
return 0;
@@ -525,7 +526,7 @@
return ENODEV;
}
- err = pcm_chn_add(d, ch, 1);
+ err = pcm_chn_add(d, ch);
if (err) {
device_printf(d->dev, "pcm_chn_add(%s) failed, err=%d\n", ch->name, err);
snd_mtxunlock(d->lock);
@@ -554,12 +555,10 @@
struct pcm_channel *ch;
int error = 0;
- snd_mtxlock(d->lock);
sce = SLIST_FIRST(&d->channels);
- snd_mtxunlock(d->lock);
ch = sce->channel;
- error = pcm_chn_remove(d, sce->channel, SLIST_EMPTY(&ch->children));
+ error = pcm_chn_remove(d, sce->channel);
if (error)
return (error);
return (pcm_chn_destroy(ch));
@@ -652,6 +651,9 @@
d->vchancount = 0;
d->inprog = 0;
+ SLIST_INIT(&d->channels);
+ SLIST_INIT(&d->channels);
+
if (((numplay == 0) || (numrec == 0)) && (numplay != numrec))
d->flags |= SD_F_SIMPLEX;
@@ -700,6 +702,8 @@
snd_mtxunlock(d->lock);
return EBUSY;
}
+
+
SLIST_FOREACH(sce, &d->channels, link) {
ch = sce->channel;
if (ch->refcount > 0) {
@@ -708,6 +712,15 @@
return EBUSY;
}
}
+
+ SLIST_FOREACH(sce, &d->channels, link) {
+ destroy_dev(sce->dsp_devt);
+ destroy_dev(sce->dspW_devt);
+ destroy_dev(sce->audio_devt);
+ if (sce->dspr_devt)
+ destroy_dev(sce->dspr_devt);
+ }
+
if (mixer_uninit(dev)) {
device_printf(dev, "unregister: mixer busy\n");
snd_mtxunlock(d->lock);
@@ -725,6 +738,7 @@
fkchan_kill(d->fakechan);
sndstat_unregister(dev);
+ snd_mtxunlock(d->lock);
snd_mtxfree(d->lock);
return 0;
}
@@ -778,7 +792,7 @@
c = sce->channel;
sbuf_printf(s, "\n\t");
- /* it would be bettet to indent child channels */
+ /* it would be better to indent child channels */
sbuf_printf(s, "%s[%s]: ", c->parentchannel? c->parentchannel->name : "", c->name);
sbuf_printf(s, "spd %d", c->speed);
if (c->speed != sndbuf_getspd(c->bufhard))
--- /sys/dev/sound/pcm/vchan.c.orig Sun Sep 7 23:28:03 2003
+++ /sys/dev/sound/pcm/vchan.c Wed Jan 21 12:07:12 2004
@@ -28,7 +28,7 @@
#include <dev/sound/pcm/vchan.h>
#include "feeder_if.h"
-SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/vchan.c,v 1.13 2003/09/07 16:28:03 cg Exp $");
+SND_DECLARE_FILE("$FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/vchan.c,v 1.15 2004/01/20 03:58:57 matk Exp $");
struct vchinfo {
u_int32_t spd, fmt, blksz, bps, run;
@@ -260,7 +260,10 @@
CHN_UNLOCK(parent);
/* add us to our grandparent's channel list */
- err = pcm_chn_add(d, child, !first);
+ /*
+ * XXX maybe we shouldn't always add the dev_t
+ */
+ err = pcm_chn_add(d, child);
if (err) {
pcm_chn_destroy(child);
free(pce, M_DEVBUF);
@@ -312,8 +315,8 @@
if (last)
parent->flags &= ~CHN_F_BUSY;
- /* remove us from our grantparent's channel list */
- err = pcm_chn_remove(d, c, !last);
+ /* remove us from our grandparent's channel list */
+ err = pcm_chn_remove(d, c);
if (err)
return err;
--- /sys/dev/sound/pcm/mixer.c.orig Tue Nov 11 11:38:28 2003
+++ /sys/dev/sound/pcm/mixer.c Wed Jan 21 12:08:16 2004
@@ -28,7 +28,7 @@
#include "mixer_if.h"
-SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/mixer.c,v 1.33 2003/11/11 05:38:28 scottl Exp $");
+SND_DECLARE_FILE("$FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/mixer.c,v 1.34 2004/01/17 10:37:11 phk Exp $");
MALLOC_DEFINE(M_MIXER, "mixer", "mixer");
@@ -87,13 +87,11 @@
static dev_t
mixer_get_devt(device_t dev)
{
- dev_t pdev;
- int unit;
+ struct snddev_info *snddev;
- unit = device_get_unit(dev);
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(unit, SND_DEV_CTL, 0));
+ snddev = device_get_softc(dev);
- return pdev;
+ return snddev->mixer_dev;
}
#ifdef SND_DYNSYSCTL
@@ -187,6 +185,7 @@
int
mixer_init(device_t dev, kobj_class_t cls, void *devinfo)
{
+ struct snddev_info *snddev;
struct snd_mixer *m;
u_int16_t v;
dev_t pdev;
@@ -213,6 +212,8 @@
pdev = make_dev(&mixer_cdevsw, PCMMKMINOR(unit, SND_DEV_CTL, 0),
UID_ROOT, GID_WHEEL, 0666, "mixer%d", unit);
pdev->si_drv1 = m;
+ snddev = device_get_softc(dev);
+ snddev->mixer_dev = pdev;
return 0;
@@ -478,14 +479,14 @@
static void
mixer_clone(void *arg, char *name, int namelen, dev_t *dev)
{
- dev_t pdev;
+ struct snddev_info *sd;
if (*dev != NODEV)
return;
if (strcmp(name, "mixer") == 0) {
- pdev = makedev(SND_CDEV_MAJOR, PCMMKMINOR(snd_unit, SND_DEV_CTL, 0));
- if (pdev->si_flags & SI_NAMED)
- *dev = pdev;
+ sd = devclass_get_softc(pcm_devclass, snd_unit);
+ if (sd != NULL)
+ *dev = sd->mixer_dev;
}
}
--- /sys/dev/sound/pcm/sndstat.c.orig Sun Sep 7 23:28:03 2003
+++ /sys/dev/sound/pcm/sndstat.c Wed Jan 21 12:09:17 2004
@@ -27,7 +27,7 @@
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pcm/vchan.h>
-SND_DECLARE_FILE("$FreeBSD: src/sys/dev/sound/pcm/sndstat.c,v 1.14 2003/09/07 16:28:03 cg Exp $");
+SND_DECLARE_FILE("$FreeBSD: /repoman/r/ncvs/src/sys/dev/sound/pcm/sndstat.c,v 1.15 2003/12/08 01:08:03 truckman Exp $");
#define SS_TYPE_MODULE 0
#define SS_TYPE_FIRST 1
@@ -340,7 +340,7 @@
static int
sndstat_init(void)
{
- mtx_init(&sndstat_lock, "sndstat", NULL, 0);
+ mtx_init(&sndstat_lock, "sndstat", NULL, MTX_DEF);
sndstat_dev = make_dev(&sndstat_cdevsw, SND_DEV_STATUS, UID_ROOT, GID_WHEEL, 0444, "sndstat");
return (sndstat_dev != 0)? 0 : ENXIO;
--------------000706070405030702070302
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panic: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x0
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc04a4756
stack pointer = 0x10:0xdcc4ea18
frame pointer = 0x10:0xdcc4ea58
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 638 (gnome-settings-daem)
trap number = 12
panic: page fault
syncing disks, buffers remaining... 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 2299 ad0: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=34232255
2299 2299 2299 2299 2299
giving up on 1691 buffers
Uptime: 1m22s
ad0: WARNING - WRITE_DMA interrupt was seen but timeout fired LBA=34232255
Dumping 511 MB
16 32[CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] 48[CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 320 336 352 368 384 400 416 432 448 464 480 496
---
Reading symbols from /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/linux/linux.ko.debug...done.
Loaded symbols for /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/linux/linux.ko.debug
Reading symbols from /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done.
Loaded symbols for /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/acpi/acpi.ko.debug
Reading symbols from /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug...done.
Loaded symbols for /usr/src/sys/i386/compile/bsdkernel/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug
#0 doadump () at ../../../kern/kern_shutdown.c:240
240 dumping++;
(kgdb) quit
--------------000706070405030702070302--
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