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Centro Diete | 4 May 2011 10:53

Dimagrire senza fatica

E' arrivata la bella stagione!

Con il nuovo metodo dimagrante,ti GARANTIAMO fino a 8 kg in meno al mese (soddisfatti o rimborsati).

Cicca qui http://dimagrimento.click-page.net

*I dati sopra riportati sono i risultati della sperimentazione scientifica e degli studi sperimentali
sul prodotto eseguiti dall'Istituto Superiore di Igiene Alimentare.
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Hauke Fath | 6 May 2011 10:19
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Mixed -current MP results

All,

so I've taken the plunge, and upgraded my netbsd-4 SPARCstation 20 (2x
SM71) to -current two weeks ago. Mixed results, quite mixed.

On the up side, I don't see any "random" userland crashes. And when the
machine crashes, it doesn't lock up, as netbsd-4 used to, but reboots. And
it reboots quickly, thanks to "-o log", instead of spending fscking 20
minutes on the 70 GB disk. Most of the installed netbsd-4 pkgsrc userland
is fine, with the notable exception of sendmail dumping core, squid working
on 5_99_49, but silently failing on 5_99_51, and XEmacs being dodgy.

Kudos to those who pulled NetBSD/sparc kicking and screaming back to a
usable state.

On the down side... if the machine doesn't keel over running the daily /
security script, it will certainly die during the following Amanda backup
run. So far, I got one (1) successful Amanda run out of the last two weeks.
The (fairly reproducible) panic is

<snip>
Mutex error: mutex_vector_enter: locking against myself

lock address : 0x00000000f4ce8170 type     :     sleep/adaptive
initialized  : 0x00000000f02258f4
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  2
current cpu  :                  0 last held:                  0
current lwp  : 0x00000000f358d580 last held: 000000000000000000
last locked  : 0x00000000f0214bec unlocked*: 0x00000000f0214c48
(Continue reading)

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Hauke Fath | 9 May 2011 20:57
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Re: Mixed -current MP results

Another one, FWIW:

NetBSD/sparc (pizza.causeuse.org) (constty)

login: Mutex error: mutex_vector_enter: locking against myself

lock address : 0x00000000f4ceb170 type     :     sleep/adaptive
initialized  : 0x00000000f02258f4
shared holds :                  0 exclusive:                  0
shares wanted:                  0 exclusive:                  2
current cpu  :                  0 last held:                  0
current lwp  : 0x00000000f358d580 last held: 000000000000000000
last locked  : 0x00000000f0214bec unlocked*: 0x00000000f0214c48
owner field  : 0x00000000f358d580 wait/spin:                1/0

Turnstile chain at 0xf02e572c.
=> Turnstile at 0xf358e930 (wrq=0xf358e940, rdq=0xf358e948).
=> 0 waiting readers:
=> 1 waiting writers: 0xf359a0a0

panic: LOCKDEBUG
Stopped in pid 0.4 (system) at  netbsd:cpu_Debugger+0x4: or %o7, %g0, %g1
db{0}> t
cpu_Debugger(0xf02a63e0, 0xf01ac594, 0xf02782d0, 0xf02c8800, 0xf02f6400,
0x104) at netbsd:lockdebug_abort1+0xa4
lockdebug_abort1(0xf4ccc900, 0x0, 0xf02782d0, 0xf0296050, 0x1, 0xf02e3800)
at netbsd:mutex_enter+0x364
mutex_enter(0xf4ceb170, 0xf00b5f18, 0xf4ceb170, 0x0, 0xf02db218, 0x1) at
netbsd:biodone2+0x8
biodone2(0xf13945e8, 0x0, 0x0, 0x0, 0xf2a9fc6e, 0xa0000020) at
(Continue reading)

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matthew green | 9 May 2011 22:59
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re: Mixed -current MP results


i haven't had a chance to look at these yet, to see what is up with biodone2.

one comment wrt the sleep you're seeing, LOCKDEBUG is *extmerely* expensive
with netbsd-5 and newer.  the slowdowns you're seeing are unfortunately to
be expected.  in at least one case, we've observed at least a 90% drop of
perf of an x86 quadcore system.

.mrg.
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matthew green | 10 May 2011 00:14
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re: Mixed -current MP results


> 
> i haven't had a chance to look at these yet, to see what is up with biodone2.
> 
> one comment wrt the sleep you're seeing, LOCKDEBUG is *extmerely* expensive

i mean "slowness you're seeing".

> with netbsd-5 and newer.  the slowdowns you're seeing are unfortunately to
> be expected.  in at least one case, we've observed at least a 90% drop of
> perf of an x86 quadcore system.
> 
> 
> .mrg.
>
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Hauke Fath | 10 May 2011 19:59
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re: Mixed -current MP results

At 6:59 Uhr +1000 10.5.2011, matthew green wrote:
>one comment wrt the sleep you're seeing, LOCKDEBUG is *extmerely* expensive
>with netbsd-5 and newer.  the slowdowns you're seeing are unfortunately to
>be expected.  in at least one case, we've observed at least a 90% drop of
>perf of an x86 quadcore system.

Ah, okay. Kind of to be expected with fine-grained locking spreading...
more locks, more debug code. My sparc isn't faster, yet, but I am less
worried.  ;)

How mandatory is LOCK_DEBUG these days?

	hauke

--
"It's never straight up and down"     (DEVO)
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U.S.Bank | 10 May 2011 07:45

Your account was deactivated

U.S. Bank. - Account reactivation form,

Because of possible unauthorized access, we have temporarily
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To remove the suspension, please confirm that your card was not
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To do this, please download and complete the attached html form.

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priority.

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Customer Service

Copyright © 2010 U.S. Bank.
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Hauke Fath | 19 May 2011 18:26
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What is going on with stand/ofwboot?

All,

what changes affected sparc/stand/ofwboot recently?

<snip>
--- dependall-sys ---
cc1: warnings being treated as errors
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c: In function
'net_mountroot_bootparams':
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c:141: warning:
implicit declaration of function 'bp_whoami'
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c:144: warning:
implicit declaration of function 'bp_getfile'
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c: In function
'net_mountroot_bootp':
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c:160: warning:
implicit declaration of function 'bootp'
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c: In function
'net_mountroot':
/public/netbsd-developer/sys/arch/sparc/stand/ofwboot/net.c:217: warning:
implicit declaration of function 'nfs_mount'
*** [net.o] Error code 1
nbmake: stopped in /public/netbsd-developer/sys/arch/sparc/stand/ofwboot
</snip>

It looks like function prototypes were made mandatory, and now the build is
crashing left and right, because functions and variable types have not been
exported properly.

I tried to fix a few occasions, but it looks like the ofwboot sources could
(Continue reading)

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Izumi Tsutsui | 20 May 2011 01:17
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Re: What is going on with stand/ofwboot?

> what changes affected sparc/stand/ofwboot recently?
 :
> It looks like function prototypes were made mandatory, and now the build is
> crashing left and right, because functions and variable types have not been
> exported properly.

Recently added -std=gnu99 in bsd.sys.mk requires function declarations.

> I tried to fix a few occasions, but it looks like the ofwboot sources could
> do with a bit of re-organizing from somebody in the know - it's more than
> just the occasional missing prototype.

net_open() in net.c stores a socket statically, so it looks net_tftp_bootp()
after net_open() doesn't have to return the socket in this case.
(probably busted of->f_devdata was not refered after that call fortunately)

Index: loadfile_machdep.c
===================================================================
RCS file: /cvsroot/src/sys/arch/sparc/stand/ofwboot/loadfile_machdep.c,v
retrieving revision 1.7
diff -u -p -r1.7 loadfile_machdep.c
--- loadfile_machdep.c	18 May 2009 11:39:30 -0000	1.7
+++ loadfile_machdep.c	19 May 2011 23:07:19 -0000
 <at>  <at>  -30,6 +30,7  <at>  <at> 
  */

 #include <lib/libsa/stand.h>
+#include <lib/libkern/libkern.h>

 #include <machine/pte.h>
(Continue reading)

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GCI | 21 May 2011 11:48
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UPDATE

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Gmane