Robert Huff wrote:
Jonathan Chen writes:

> I am seeing the following messages, which appear to indicate a memory > overwrite:
 > Waiting (max 60 seconds) for system processs 'vnlru' to stop...done
 > Waiting (max 60 seconds) for system processs 'bufdaemon' to stop...done
 > a
> iStyinncgi n(gm adxi s6k0s ,s evcnoonddess) rfeomra isnyisntge.m. .pr0o > cess 'syncer' to stop...0 0 done
 > All buffers synced.
 > Uptime: 8m9s
It's an interleaved buffer messages on SMP systems. The problem is
 known, but I haven't heard of a proposed solution yet.

        There is no fix.
        The workaround is to increase the size of the kernel printf()
buffer.  I don't remember how you do that ... but this is not a new
issue - chech the archives for details.

I would like to propose a fix. Care to test it?

Just apply this patch and add the following line to your /etc/rc.conf file.

--- rc.shutdown 2008-02-20 19:28:45.000000000 +0100
+++ /etc/rc.shutdown    2008-02-20 19:59:03.000000000 +0100
@@ -43,10 +43,21 @@
 export HOME PATH

+# The next three lines belong into /etc/defaults/rc.conf.
+shutdown_clean_enable="NO"   # Set to YES to stop all but the first CPU
+                               # core to prevent mixed buffer output
+                               # upon shutdown.
 . /etc/rc.subr

 load_rc_config 'XXX'

+# Fall back to single core mode to guarantee clean output.
+if checkyesno shutdown_clean_enable; then
+       bitmask="$(jot -s '' -b1 $(expr $(sysctl -n hw.ncpu) - 1))0"
+       sysctl machdep.hlt_cpus=$bitmask
 # reverse_list list
 #      print the list in reverse order

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