Messages

1

Sharp ROMs / Overclock Crash

« on: June 23, 2005, 12:10:22 am »

I have a c760 currently running cacko lite 1.22 w/hotfix

If i overclock the c760, after a short while the system starts getting crazy.  and will eventually require a hard reboot.  the logs show complaints about crc checksums on mostly the /, /home, and /usr mounts.  the exact error locations and affected mount points vary, but it always happens and eventually requires a hard reboot.

I do only use sd media.

I originally thought this might be heat related, but now think heat is only one big factor in this problem.  it will eventually happen no matter what i do, but if i run mplayer (via kino or otherwise) i can be sure that the system is hosed when I get back to the system.  If i use my symbol wifi card or am charging, there are more errors and the system gets really unstable.

a forum search for overclock crash didn't turn up anything.  the main overclocking thread mentions the system can get unstable after overclocking especially if you are charging.  but it looks like many people successfully overclock for video and games without problems.  

anyone care to share their own experiences with overclocking, particularly with cacko on a 760, but any at all would be welcome

--francois

2

Linux Applications / Arm Simulator For X86

« on: June 21, 2005, 08:36:40 am »

http://linuxdevices.com/news/NS4665550218.html


Virtera says VM-arm supports a range of ARM software environments, from bare machine programs running without an OS to full operating systems such as ARM Linux. The company plans to provide "near-complete" simulation of the StrongARM SA-110 and Sharp Zaurus SL-5500. Additionally, the simulator can be extended to model modified ARM processors and systems before they reach production, Virtera says.

The free version of ARM-se has been available for download since late May, along with a technical whitepaper. The commercial version is expected this year.

ARM Ltd. announced yesterday that it will also ship simulation tools capable of running at 100 MIPS (millions of instructions per second) on a fast Pentium 4 system.



sounds like fun just waiting to happen!
--francois

3

Sharp ROMs / Cacko 1.22b And Dav - Working

« on: April 06, 2005, 03:32:18 pm »

now that the initial excitement has passed, i noticed that the fuse module is included with cacko.  i havent played with fuse in a long time, but it seems to have matured and now seems to have a considerable amount of useful plugins.  

that seems to be a better direction to work in

4

Sharp ROMs / Cacko 1.22b And Dav - Working

« on: April 06, 2005, 03:01:58 pm »

after spending some time and having numerous misadventures, i finally have davfs working on my c760 running cacko 1.22b.

i used kunitake's davfs and libxml2 packages, along with the libcrypt and libssl from his feed (but not the whole package so as not to break cacko) because davfs was compiled against openssl 0.9.6.  

the davfs module needs coda support in the kernel, which isn't available in cacko, so i compiled it myself and copied it over.

i tried recompiling davfs so it would work against openssl 0.9.7, but my cross compiler setup is good enough for the kernel but completely broken for anything with library
dependancies, and i couldn't find a dev-img with xscale support for native compiling.

kunitake's archive was available yesterday when i started playing with all this:
 http://www.linux-ipv6.org/~kunitake/zaurus/feed

but today it's a no-go.  i used archive.org to grab the packages and put them up along with coda.o, libcrypt.so.0.9.6, and libssl.so.0.9.6.  you may get some unexpected end of file errors from the ipk i've mirrored, but they should work :
 http://spic.net/z/

if anyone has info on a dev-img that works for building cacko, I'd appreciate it and will use it to rebuild the packages for the cacko feeds.

now aside from updating davfs, all we need is an applet to handle the mounting.

5

Cxx0 General discussions / C760 860 Differences?

« on: April 05, 2005, 04:08:24 pm »

Ok then, is there any way at all to get 802.11b networking WITHOUT using the CF slot?  Can't use the sd cuz it's not sdio right?  Is there anything that could do so thru the zaurus usb-client plug, since the aircable seems to provide bluetooth connectivity in this manner? 
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there's nothing you can do to get 802.11b off the zaurus connector.  

the aircable works by plugging into the serial port circuitry and shows up on the z as it's basic internal serial port.  instead of the traditional cable, you have a direct bluetooth connection to another device using the standard bluetooth serial profile.  all the bt stuff is handled internally on the aircable and not presented to the zaurus.  

you can't (afaik) use an aircable to connect to a pan device, or to transfer files via obex because the bluetooth stack is embedded in the device

also, many bluetooth chipsets are serial based, when plugged into the system they appear as a serial port (most pcmcia/cf cards work this way) and the bluetooth stack for linux can handle them.  tdk made a serial port bluetooth device for regular computers that worked like this i think.  

but 802.11b is a different beast.  i've not seen an 802.11b controller that could operate as a usb host or via a serial interface.  well, short of basically a full system


if you're z has a usb-host port, you're in a better position.  my own experience with
802.11b usb adapters has been horribly painful, and i'd much rather use it for a pocket hdd and leave my wifi card in the z.

if you're not looking for a pocket-sized solution, you could take an older laptop with a good battery and carry it around in your bag as a portable access point and mount the drive over wifi   there's at least one company out there that sells an external drive enclosure with wifi built in too (you'd have to provide your own battery)

too bad 802.11 can't connect to multiple access points, or you could really have some fun with that!

--

6

Sharp ROMs / Cacko 1.22 Problems

« on: April 03, 2005, 09:52:30 pm »

xlibs_4.3.0-3_arm.ipk, returning
ipkg_get_install: Perhaps you need to run `ipkg update'?



Any ideas?
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this happens when ipkg is trying to install a package it can't find, which often happens if you tagged a package to install in add/remove programs and something stopped it (user cancel, crash, etc)

you can try an ipkg update followed by an ipkg upgrade while the network is up to see if it can grab the package, or grab that xlibs package and install it manually.

if you don't care about xlibs or still have issues, run from the command line:
ipkg remove xlibs

that may remove xqt or any other packages you may have installed which depend on xlibs.  you can always reinstall them later.  this tells ipkg to remove xlibs which is in a bad state and forget about it

7

Sharp ROMs / Blank Username/blank Password On Gprs

« on: February 09, 2005, 04:46:52 pm »

try entering anything at all.  often when username and password are blank, the other side will just ignore what you set.  that's what i do with tmobile.

--francois

8

5x00 Hardware / Custom battery pack

« on: November 25, 2004, 11:58:26 am »

Unfortunately, you don't get 7.2 AmpHours with 4 1.8 Amphour batteries in parrallel.  You only get 1.8 (but at a higher voltage: 5.34 v 1.2).  If you wire them in series you will get 7.2, but at only 1.2 volts.

This is backwards.  Wiring 4 - 1.8ah 1.2v in parallel gives you a single 7.2ah 1.2v power source.  wiring the same batteries in series provides a single 1.8ah 4.8v source.

9

Deals and Great Z Buys / Conics?

« on: November 25, 2004, 11:50:18 am »

I've ordered from conics in the past and have nothing but good things to say about them.  They sell both new and used items, but are very clear on what you are buying.  When the c760 was discontinued, he started selling used.  My first experiences with conics was a few years back with sony vaio u-series products.  Never had to use the warranty service through them, but you can search on the vaio_u1 yahoo group for other testimonials.

10

General Discussion / Kingmax 60X SD card = fast swapfile

« on: November 23, 2004, 10:17:11 pm »

here's some results:

c760 / cacko 1.21b / kingmax 60x 1gb sd / ext3

$ ./bonnie -d /mnt/card/tmp/ -f -b -n 0
Writing intelligently...done
Rewriting...done
Reading intelligently...done
start 'em...done...done...done...
Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
zaurus         300M            1447  21   578   3             856  22  29.3  92
zaurus,300M,,,1447,21,578,3,,,856,22,29.3,92,,,,,,,,,,,,,

c760 / cacko 1.21b / kingmax 60x 1gb sd / ext2

$ ./bonnie -d /mnt/card/tmp/ -f -b -n 0
Writing intelligently...done
Rewriting...done
Reading intelligently...done
start 'em...done...done...done...
Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
zaurus         300M            1530  41   565  31             833  18  26.9  96
zaurus,300M,,,1530,41,565,31,,,833,18,26.9,96,,,,,,,,,,,,,

c760 / cacko 1.21b / kingmax 60x 1gb sd / ext3 again without "-n 0"

$ ./bonnie -d /mnt/card/tmp/ -f -b
Writing intelligently...done
Rewriting...done
Reading intelligently...done
start 'em...done...done...done...
Create files in sequential order...done.
Stat files in sequential order...done.
Delete files in sequential order...done.
Create files in random order...done.
Stat files in random order...done.
Delete files in random order...done.
Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
zaurus         300M            1324  10   553   3             796  19  26.4  86
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16    29  24  7786  76    48   2    31  25   666  96    26   6
zaurus,300M,,,1324,10,553,3,,,796,19,26.4,86,16,29,24,7786,76,48,2,31,25,666,96,
6,6

11

General Discussion / Kingmax 60X SD card = fast swapfile

« on: November 23, 2004, 10:12:14 am »

It's been running for over 40 minutes now.  One thing I've noticed is a large number of error messages spewed out from the sd driver:

sd_wait_for_ready: wait card busy time out. status=0700
sd_wait_for_ready error! in sd_write_multiple_block() - 5
pxa_sd_startclock: clock start time out... continue!

I may not get to post my benchmarks run until later.

the sd driver errors seem a bit odd, looking into the system, I see about 55% cpu utilization on kjournald and another 30% on bonnie++

Which file system did you test against?

12

General Discussion / Kingmax 60X SD card = fast swapfile

« on: November 23, 2004, 09:15:12 am »

i'm running it now against a kingmax 60x 1gb card on a 760 w/cacko 1.21b

13

General Discussion / Kingmax 60X SD card = fast swapfile

« on: November 23, 2004, 03:20:07 am »

all in bytes that should be, and sleeping i should be

14

General Discussion / Kingmax 60X SD card = fast swapfile

« on: November 23, 2004, 03:15:14 am »

x is the transfer rate of a single speed cd-rom drive: 150kbps

With flash memory cards, if there is only one advertised rating it usually refers to write speeds

so a 60x rated sd card should be able to sustain 9mbps writes.  

all in bits

15

C1000/3x00 General discussions / Internal battery

« on: November 21, 2004, 08:03:11 pm »

Reset buttons are always welcome, a freeze is bad enough without having to take out the battery to force a reboot.