[K12OSN] K12LTSP v5.0 (64bit) Client bootup problem

[Eric Harrison]

Wilson Chan wrote:
> I cant get some of my LTSP clients to boot via PXE on K12LTSP V5.0 64bit (Final). The clients show BUG: soft lockup detected on CPU#0! after it shows "Running dhcpcd on port 67". Below are the screenshots of the bootup process. Im trying to get this server up before school starts (Monday). eeek! Btw- it works fine on the older 4.x.x distros. Any ideas? 
> 
> Server Specs:
> AMD AM2 4600+ 64x2
> Corsair 2Gb (800DDR2)
> MSI K9N SLI Platinum (Built in dual 10/100/100 & SATA2)
> Raptor 150GB 10K 16MB SATA hdd
> 
> Clients:
> All 15 Clients are the same. (6 of them wont boot and gives a BUG: Error)
> Nic- 3Com 3c905C-TXM (PXE)
> 
> 
> ==Screen Shots of Boot==
> Bootup:
> http://tinyurl.com/lgb49
> 
> Uncompressing Linux (DHCP...Load vmlinuz.ltsp....Uncompressing Linux)
> http://tinyurl.com/gvqc8
> 
> Running dhcpcd on Port 67
> http://tinyurl.com/qoj7h
> 
> Error Message after Running dhcpcd on port 67.  BUG: soft lockup detected on CPU#0!...
> http://tinyurl.com/fxywd
> 
> ==Server==
> /var/log/messages
> Aug 10 06:13:53 server in.tftpd[2847]: tftp: client does not accept options
> 
> 

I did a search on the kernel mailing list and all of the reports I saw
on this they were using 3c59x ethernet cards, which I see you have as well.

I have an older kernel (2.6.14 vs 2.6.17.3) that may work. Give this a spin:


> wget ftp://k12linux.mesd.k12.or.us/pub/K12LTSP/testing/old-kernel/ltsp_i386-kernel-2.6.14-1.k12ltsp.4.4.2.i386.rpm

> rpm -Uhv --oldpackage --nodeps ltsp_i386-kernel-2.6.14-1.k12ltsp.4.4.2.i386.rpm


If that doesn't fix it, you can get back to the latest kernel with:

  yum install ltsp_i386-boot


-Eric