6.0 BETA2 reboot hangs on SMP system - progress of a sort
markir at paradise.net.nz
Tue Aug 23 22:39:48 GMT 2005
Looks like I have false alarmed everybody :-( I must have changed
something in my BIOS setup since I last (tried to) reboot, because now
5.4-RELEASE (SMP) reboots ok, and I have made no changes there.
I will look around and try to see what it is (a quick glance suggests I
have USB enabled now, whereas it may have been disabled before).
Apologies for the confusion...
Mark Kirkwood wrote:
> A brief description of system is (dmesg attached):
> Tyan S2510 dual 1Ghz
> RELENG_6 From Aug 14
> Reboot hangs after displaying "cpu_reset: Stopping other CPUs". This
> appears to be a hard lockup, as I cannot break to the debugger.
> In an effort to see where the problem was, I amended
> Adding some printf statements and removing the #ifdef DIAGNOSTIC in
> subr_smp.c, so that it printed always (diffs attached).
> To my surprise, after a kernel rebuild + shutdown and restart, I find
> that 'shutdown -r now' and 'reboot' *now work*! Hmmm, nice but weird.
> This sort of voodoo suggests something like memory being clobbered
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