7B4: kernel messages garbled

Kris Kennaway kris at FreeBSD.org
Wed Jan 2 03:06:34 PST 2008

Chris H. wrote:
> Hello, and happy New Year to all!
> I'm hoping to update all our servers to 7 in the near future.
> As such, I'm experimenting with it on one of our less prominent
> production servers.
> My procedure for it's installation and usage:
> download 7-CURRENT disk1 iso (B4) from nearest freebsd mirror
> install choice - minimum + src
> make config options, reboot
> download cvsup-no-gui pkg
> cvsup ports + src
> (above procedures performed 2007-12-30)
> (above procedures again performed on 2007-12-31)
> In every case, I wiped the hard drive, performing a fresh install.
> After initial install. Sending a halt, in order to reboot the system
> results in garbled messages to the console. Specifically, the
> Syncing disks... message is unintelligible. As does is line
> preceding it.
> Also. After syncing the source, I altered/renamed GENERIC and
> performed build/world/kernel, and install/kernel/world.
> During the buildworld process I recieved more warnings than I
> can recall seeing in previous versions <= 6.
> ee (aee) resulted in "Illegal instruction... core dumped" after
> the build/install process.
> FWIW this is on an i386 2 proc MB.
> Given the many changes in 7, I spent more time reading the doc's
> and errata than I have spent in previous versions.
> Thank you for all your time and attention to this matter.

It is just a sign that 7 is getting higher concurrency than 6 did.

The warnings are probably from the new compiler (gcc 4) which as usual 
is more strict and more verbose.  Try building ee with -ggdb and running 
a backtrace.


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