On Thu, May 31, 2007 at 05:35:49PM -0700, Matthew Dillon wrote:
> We need to make a decision on the next release as to whether NATA
> should become the default. I would really like to make it the default,
> but to do so we need some assurance that it won't break things that
> currently work.
>
> So I'm asking all developers running HEAD who have not already started
> using the NATA driver to start using it instead of the ATA driver.
> Lets give it a good whack!
I gave NATA a try on my notebook PC, and now it boots into single-user mode!
This is a progress, as it used to just get stuck somewhere in init(8) (BTW
I tried to add debug print's in init, but somehow it didn't work), and
all I could do then was to drop in to DDB or reboot.
However, core dumping of random processes still remains, so it's still not
usable in multi-user mode. Sometimes, it panics on umount, after some
read-only disk activities:
# mount -r /home
# find /home >/dev/null
# umount /home
panic: unmount: dangling vnode
Another weird thing with NATA is that I'm seeing odd interrupt counts
from `vmstat -i'; with old-ATA, it looks like this:
# vmstat -iv
interrupt total rate
irq0: clk 402493 277
irq1: atkbd0 4 0
irq9: acpi0 54 0
irq11: fxp0 2649 1
irq12: psm0 0 0
irq14: ata0 1634 1
irq15: ata1 0 0
irq68: swi_vm 0 0
irq69: swi_taskq 0 0
Total 406834 280
with NATA, it looks like this(in single-user mode):
# vmstat -iv
interrupt total rate
irq0: clk 1236 176
irq1: atkbd0 24 3
irq9: acpi0 1 0
irq11: fxp0 0 1
irq12: psm0 0 0
irq14: ata0 99 14
irq15: ata1 0 0
irq21 98 14
irq68: swi_vm 0 0
irq69: swi_taskq 0 0
Total 1458 208
irq21 has almost the same number as ata0 does and the number raises
as the disk activity occurs.
Cheers.
Index: vmstat.c
===================================================================
RCS file: /home/source/dragonfly/cvs/src/usr.bin/vmstat/vmstat.c,v
retrieving revision 1.20
diff -u -p -r1.20 vmstat.c
--- vmstat.c 28 Jan 2006 17:18:48 -0000 1.20
+++ vmstat.c 1 Jun 2007 08:53:50 -0000
@@ -112,6 +112,7 @@ struct vmstats vms, ovms;
int winlines = 20;
int nflag = 0;
+int verbose = 0;
kvm_t *kd;
@@ -157,7 +158,7 @@ main(int argc, char **argv)
memf = nlistf = NULL;
interval = reps = todo = 0;
maxshowdevs = 2;
- while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stw:z")) != -1) {
+ while ((c = getopt(argc, argv, "c:fiM:mN:n:p:stvw:z")) != -1) {
switch (c) {
case 'c':
reps = atoi(optarg);
@@ -202,6 +203,9 @@ main(int argc, char **argv)
errx(EX_USAGE, "sorry, -t is not (re)implemented yet");
#endif
break;
+ case 'v':
+ ++verbose;
+ break;
case 'w':
interval = atoi(optarg);
break;
@@ -744,7 +748,7 @@ dointr(void)
err(1, "malloc");
sysctlbyname("hw.intrcnt", intrcnt, &size, NULL, 0);
- nwidth = 8;
+ nwidth = 21;
for (i = 0; i < nintr; ++i) {
if (nwidth < (int)strlen(intrname[i]))
nwidth = (int)strlen(intrname[i]);
@@ -753,10 +757,26 @@ dointr(void)
printf("interrupt total rate\n");
inttotal = 0;
for (i = 0; i < nintr; ++i) {
- if (intrcnt[i] || strncmp(intrname[i], "irq", 3) != 0) {
- printf("%-*.*s %11lu %10lu\n",
- nwidth, nwidth, intrname[i],
- intrcnt[i], intrcnt[i] / uptime);
+ int named = 0;
+ char irqinfo[32], *infop;
+
+ if ((named = strncmp(intrname[i], "irq", 3)) != 0 ||
+ verbose > 1 || intrcnt[i]) {
+ if (verbose) {
+ if (named) {
+ snprintf(irqinfo, sizeof(irqinfo),
+ "irq%d: %s", i, intrname[i]);
+ infop = irqinfo;
+ } else
+ infop = intrname[i];
+ printf("%-*.*s %11lu %10lu\n",
+ nwidth, nwidth, infop,
+ intrcnt[i], intrcnt[i] / uptime);
+ } else {
+ printf("%-*.*s %11lu %10lu\n",
+ nwidth, nwidth, intrname[i],
+ intrcnt[i], intrcnt[i] / uptime);
+ }
}
inttotal += intrcnt[i];
}
