Date: Wed, 04 Dec 1996 21:16:39 +0800 From: Peter Wemm <peter@spinner.dialix.com> To: Terje Normann Marthinussen <Terje.N.Marthinussen@cc.uit.no> Cc: smp@freebsd.org Subject: Re: Crashing on activating other CPUs Message-ID: <199612041316.VAA00740@spinner.DIALix.COM> In-Reply-To: Your message of "Wed, 04 Dec 1996 13:35:40 %2B0100." <199612041235.NAA00889@slibo.cc.uit.no>
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Terje Normann Marthinussen wrote:
> >...and full dump messages run by before it freezes solid (and a reset is
> >necessary). No variation on SMP_INVLTLB or APIC_IO seems to change the
> >above behavior.
>
> Our 4 CPU Netserver works without SMP_INVLTLB and APIC_IO (the latter
> has never worked). With SMP_INVLTLB, I get something similar the
> moment I do "sysctl -w kern.smp_active=2".
>
> SMP: AP CPU #1 LAUNCHED!! Starting Scheduling...
> cpunumber = 0
> instruction pointer = 0x8:0xf01b632d
^^^^^^^^^^^^^^^^
> stack pointer = 0x10:0xefbfffa4
> frame pointer = 0x10:0xefbfd5e8
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> processor eflags = interrupt enabled, IOPL = 0
> current process = 149 (sshd@386freebsd2)
> interrupt mask =
> panic (cpu#0): unknown/reserved trap
> boot() called on cpu#0
>
> syncing disks... 5 5 2 done
> Automatic reboot in 15 seconds - press a key on the console to abort
>
>
> Terje Marthinussen
> terjem@cc.uit.no
Hmm, you have all 4 cpu's enabled? Steve sounds like he's figured out
why the >2 cpu startup code (presently disabled) causes problems. We
do not support >2 cpu's at the moment. ("do not support" == "known to
not work" in this case). We are close, but still not quite there.
Can you please try two things..
First, where is 0xf01b632d ? Can you please do this:
# nm /kernel.whatever | sort | more
and search for the the 3 surrounding function names?
Second, can you please compile with "options DDB" and when it does this,
do a "trace" command and record the output.
Cheers,
-Peter
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