Friday, April 9, 2010

dell vostro 1520 : getting wireless up on karmic 9.10 ubuntu

I was struggling with the wireless on my dell vostro 1520 (64bit, ubuntu 9.10) till I came across the post by frost at http://www.aeonity.com/frost/getting-dell-wifi-work-ubuntu-910-karmic-koala

thx to him, I have my bcm wireless working on my laptop

sudo apt-get install b43-fwcutter
reboot
[this is required as my system had bcm4312]
system->hardware drivers -> broadcom sta wireless driver -> activate
reboot

gopi

Wednesday, April 7, 2010

java hung on futex_wait

It has been really painful. I was using netbeans for php coding and after sometime, java started hanging at futex_wait

The following solution from http://www.ctroller.com/contentRoller/view/25877/solution_futexwait_hangs_java_on_linux_ubuntu_in_vmware_or_virtual_box.html seems to have solved it
execute the following on a shell prompt (as root/sudo)

rm /dev/random
mknod -m 644 /dev/random c 1 9

This might be bcoz, /dev/random (c , 1, 8) might block if it runs out of values. (c,1,9) is linked to urandom. we are just changing the /dev/random also to point to the same char driver

Update:
I thought this fix worked, but the problem has come back again. So, kind of stuck.. still no fix

Sunday, April 4, 2010

Enterprise SMS Gupshup : Issues in understanding the packages


I wanted to support sending SMS from my web site and registered with enterprise smsgupshup.

The only page I get after login is the the one prompting me to buy the SMS credits instead of explaining what the product does, differences between the various packs etc.

On the top of it, they call "Messaging Revenue" which is very confusing. As I understand it, it should be called "Price/Cost" :-)

Now, I am unable to understand why one would go for an "ace small" pack compared to a "promo small" pack if for the same price, one is able to send more messages.

Also, they are so shady that they dont show anything else you actually make a purchase. I couldnt find any place where the difference between ace/promo/power packs is given.

Overall, I dont understand how they can do such a shabby job on this.

Update: (after finding the details from some ebay sites, yet to find what is "power pack"
Update: Just spoke to gupshup call center (very friendly), got the details of all the packs which are updated below.
Pack Name DND Policy Delivery Commitment Recredit Warranty Recredit Policy Message Limits Support on Delivery Report
Promo Pack On: Mandatory Same day 7am to 11pm Yes. If not sent Daily - Automatic None No
Ace Pack Default ON: Can be off against customer request in writing Within 4 hrs Yes. If later than 6 hrs Daily - Automatic 1 lac per day Yes
Power Pack
Default DND is OFF
5 mins
yes, if not sent within 5 mins I guess

1500 message per minute (else SLA doesnt seem to hold good)
yes
Alert pack
DND is off by default
1 minute
yes

1500 message per minute (else SLA doesnt seem to hold good)yes