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Date:      Thu, 20 May 99 15:38:45 -0400
From:      msb <mboers@DatacompUSA.com>
To:        <freebsd-hackers@freebsd.org>, <freebsd-smp@freebsd.org>
Subject:   Cyclom Ye panics 3.1's SMP kernel
Message-ID:  <199905201937.PAA29445@datacompusa.com>

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Subject:     Cyclades Cyclom-Ye panics with 3.1's SMP
Sent:        5/20/99 3:33 PM
To:          freebsd-smp@freebsd.com
             freebsd-hackers@freebsd.com

SUMMARY:

My cyclades cyclom-Ye panics the kernel when I am running with 
release-3.1's smp options.  Turning off SMP allows the card to work 
fine. Unplugging the SM-II pod also allows normal operation of the 
machine in SMP mode (of course then there are no serial ports to access).

If anyone has suggestions, advice, or sympathy to offer it will be 
welcomed.

DETAILS:

occurs when a serial port on the cyclom board first accessed

panic message = Panic: rslock: cpu 0: addr: 0xf026a3ec, lock 0x00000001
                mp_lock = 00000001: cpuid = 0: lapic.id = 00000000

stack trace = #10 bsl1 ()
              #11 cyopen (dev=12416, flag=5, mode=8192, p=0xf8ceae60)
                  at ../../i386/isa/cy.c:755

further tracing has revealed that the panic actually occures in the 
commctl function in cy.c likely when a call is made to disable_intr() at 
line #2453.

hardware = Tyan S1832DL Tiger 100 with dual Pentium II 350's
           256 MB RAM, 18 GB IDE drive
           
other: happens with both the isa and pci version of the card.

--
Michael Scott Boers
Datacomp


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