Re: Need Help: Doubt about Diskless booting for Ubuntu 8.10

2009-04-03 Thread Michael Blizek
On 22:30 Fri 03 Apr , Prachi Bodke wrote: > My Xor log is as follows: ... > & gdm log is as follows: > > * > X.Org X Server 1.5.2 > Release Date: 10 October 2008 > X Protocol Version 11, Revision 0 > Build Operating System: Linux 2.6.24-19-server i686 Ubuntu > Current Operating System: Linux

Re: Need Help: Doubt about Diskless booting for Ubuntu 8.10

2009-04-03 Thread Michael Blizek
Hi! On 20:38 Fri 03 Apr , Prachi Bodke wrote: > Hey, > > I am following > https://help.ubuntu.com/community/DisklessUbuntuHowto#Creditsthese > instructions for doing setup for diskless booting. > > .For me, now the root filesystem is getting loaded. The scripts from > rcX directories are al

Re: Usage of Semaphore with a workqueue

2009-04-03 Thread Michael Blizek
Hi! On 14:45 Fri 03 Apr , Peter Teoh wrote: > Eryes, i understand what u are saying.but then I am lost over > your original question. > > Can you re-explain your original question again? Now I don't quite > understand. Devesh wanted to do trylock of a semaphore inside a workqueue

Re: Usage of Semaphore with a workqueue

2009-04-03 Thread Michael Blizek
Hi! On 20:42 Wed 01 Apr , Devesh Sharma wrote: > Hello list, > > Consider a case where I have a workqueue, a work is submitted to a it > from some interrupt handler > Lets say, some where in a code, it tries to get some semaphore to > enter into a critical section, > and fails to get it, shol

Need Help: Doubt about Diskless booting for Ubuntu 8.10

2009-04-03 Thread Prachi Bodke
Hey, I am following https://help.ubuntu.com/community/DisklessUbuntuHowto#Creditsthese instructions for doing setup for diskless booting. .For me, now the root filesystem is getting loaded. The scripts from rcX directories are also executing. But after starting Gnome display manager..the machine

Doubt in USB modules

2009-04-03 Thread niamathullah sharief
Hello,     I disabled the USB support while i build the kernel.After that i planned to make my USB port to work by inserting the modules manually.     May i know, what are all the modules is used to make USB to work? Add more friends to your messenger and enjoy! Go to http://messenger.yaho

Re: ram based block dev driver -- timer function -- async processing

2009-04-03 Thread Henrik Austad
On Friday 3. April 2009 12.52.51 nidhi mittal wrote: > Hi all > [...] > i have tried all possible code modifications so many of times but each time > i have to reboot after crash ...and that too doesnt leave any log message First thing I'm thinking: do you try to dereference NULL somewhere? > [..

Re: ram based block dev driver -- timer function -- async processing

2009-04-03 Thread pradeep singh
Can you past the panic log, please? On Fri, Apr 3, 2009 at 4:22 PM, nidhi mittal wrote: > Hi all > i have already posted this also .but still not solved ..really need help > > MY aim : > in simple ram based block dev driver > wherein > in request function -- dequeue the req from req queue and add

ram based block dev driver -- timer function -- async processing

2009-04-03 Thread nidhi mittal
Hi all i have already posted this also .but still not solved ..really need help MY aim : in simple ram based block dev driver wherein in request function -- dequeue the req from req queue and add it to the linked list then in the function triggered by timer handle each req from the linked list the

Re: D_LOOKUP in REAL_LOOKUP?

2009-04-03 Thread pradeep singh
On Tue, Mar 31, 2009 at 11:31 AM, krushnaal pai wrote: > in kernel 2.6.11 > to retrieve a particular file the kernel calls d_lookup to check cache but > if  it is not found in dcache ,kernel calls real_lookup to search the hard > disk. > however inside real_lookup the kernel again calls d_lookup .

Re: asynchronous request procesisng in ram based block dev driver

2009-04-03 Thread sanjeev sharma
GFP_ATOMIC means roughly "make the allocation operation atomic". This means that the kernel will try to find the memory using a pile of free memory set aside for urgent allocation. If that pile doesn't have enough free pages, the operation will fail. This flag is useful for allocation within int

Re: timer function

2009-04-03 Thread Matthias Kaehlcke
El Fri, Apr 03, 2009 at 03:50:31PM +0530 sanjeev sharma ha dit: >There are lots of timer function which executes periodically below is the >link: > > > http://repository.upenn.edu/cgi/viewcontent.cgi?article=1750&context=cis_reports i'm sure there are a lot of kernels out there that

Re: Embedded Linux Vs WinCE

2009-04-03 Thread sanjeev sharma
Hi , On Thu, Apr 2, 2009 at 2:37 PM, Vivek Kumar Gupta wrote: > My manager asked to check difference between WinCE vs Embedded Linux. > > I am googling…..but did not a satisfactory result. > > > > > > I just want comparison in > > 1. Foot print > Basically the Foot print is based upon What are t

Re: timer function

2009-04-03 Thread sanjeev sharma
Hi folks, There are lots of timer function which executes periodically below is the link: http://repository.upenn.edu/cgi/viewcontent.cgi?article=1750&context=cis_reports On Thu, Apr 2, 2009 at 2:12 PM, nidhi mittal wrote: > yes i solved it > i timer function i set it again for another 1 sec and

Re: "memmap" in bootargs

2009-04-03 Thread sanjeev sharma
*It is used to map custom memory up to 32MB. * * which means Force usage of a specific amount of memory Amount of memory to be used when the kernel is not ableto see the whole system memory or for test. * On Thu, Apr