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<title>Re: Mounta Vista Linux prompt on serial console </title>
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<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>When I
tried to debug for the reason of “Freeing unused kernel memory: 56k init
“ hang problem the following is the printk outputs…<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=3 face="Courier New"><span
style='font-size:12.0pt;font-family:"Courier New"'>Entering kernel_read<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=3 face="Courier New"><span
style='font-size:12.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=3 face="Courier New"><span
style='font-size:12.0pt;font-family:"Courier New"'>Entering elf_map <o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=3 face="Courier New"><span
style='font-size:12.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Courier New"><span style='font-size:12.0pt;
font-family:"Courier New"'>map_addr was 0x30026000 <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Courier New"><span style='font-size:12.0pt;
font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Courier New"><span style='font-size:12.0pt;
font-family:"Courier New"'>Failed due to bad address<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Courier New"><span style='font-size:12.0pt;
font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Courier New"><span style='font-size:12.0pt;
font-family:"Courier New"'>Entering padzero</span></font><font color=navy
face=Arial><span style='font-family:Arial;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>From the above can anything be concluded ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>One more doubt was, is it mandatory that
the Virtual memory has to enabled while building the Mounta Vista linux kernel ?
Why because there was an option to enable the kernel base address and if it is
enabled it asks for what is the address for the Kernel Virtual base address? If
I give 0x0 it works otherwise the Kernel itself is not at all booting.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Till the statement “Freeing unused kernel memory: 56k init”
is coming only if and if the 0x0 was given for the kernel virtual base
address.</span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks & Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-SS<o:p></o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
linuxppc-embedded-bounces@ozlabs.org
[mailto:linuxppc-embedded-bounces@ozlabs.org] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, February 18, 2005
2:42 PM<br>
<b><span style='font-weight:bold'>To:</span></b> linuxppc-embedded@ozlabs.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Freeing unused kernel
memory: 56k init</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div id=idOWAReplyText45834>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
</div>
<div>
<div id=idOWAReplyText29619>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>The latest update is that the init was
also found in one of the packages. So now I am not facing init not found
problem . But there was a hung problem, once the init is invoked .. Please find
the output below...</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>RAMDISK:
Compressed image found at block 0<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>Freeing
initrd memory: 1235k freed<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>kjournald
starting. Commit interval 5 seconds<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>EXT3-fs:
mounted filesystem with ordered data mode.<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>VFS:
Mounted root (ext3 filesystem) readonly.<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>Mounted
devfs on /dev<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>Freeing
unused kernel memory: 56k init<o:p></o:p></span></font></p>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'><
there is no output after the above statement.....> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks & Regards</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Surabhi Srinivas</span></font><o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Wolfgang
Denk [mailto:wd@denx.de]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thu 2/17/2005 5:12 PM<br>
<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Mounta Vista Linux
prompt on serial console </span></font><o:p></o:p></p>
</div>
<div>
<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>In
message <EF9B29C78F41FA488927FCBC7750AF0E08DA14@hyd-mdp-msg.wipro.com>
you wrote:<br>
><br>
> But the problem is that it was stopping at<br>
><br>
> "No init found. Try passing init= option to kernel".
Before that there<br>
> were no errors. Everthing looks fine Mounted VFS root file system
was also<br>
<br>
Fine. So you can mount the root filesystem, but it obviously does not<br>
contain all the required files.<br>
<br>
> seen. >From the net I understood is that the fstab file was the
cause. So<br>
> edited the filesytem parameter for / as /dev/ram earlier it used to
be<br>
> /dev/root.<br>
<br>
No. /etc/fstab has absolutley nothing to do with your
problem. The<br>
kernel cannot start the init porocess - make sure
init is in the<br>
filesystem, plus all required libraries.<br>
<br>
> So please tell me whether the given fstab file will suffice? The
filesystem<br>
<br>
This is completley unrelated.<br>
<br>
> 2. I have one more doubt /sbin/init utility comes with what package?<br>
> Because in /sbin directory although the init binary is present, not
shown<br>
> in the file system heirarchy view. For eg. if I select DHCPD package
then<br>
> able to see dhcpd related binary in the /sbin similarly my question
was<br>
> which package has to be selected to have init included.<br>
<br>
Please contact MV support. I have no idea how they
package their<br>
distribution, or how their config tools might
work. You paid for<br>
their stuff, so ask _them_.<br>
<br>
Best regards,<br>
<br>
Wolfgang Denk<br>
<br>
--<br>
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Feb 22 - 24, Hall 10.0 Booth 310<br>
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de<br>
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(I found it!) but "That's funny ..."<br>
-- Isaac Asimov</span></font><o:p></o:p></p>
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