"consvar" causes: panic: tb_shoot ack timeout (fwd)

From: <jreed_at_appliedtheory.com>
Date: Fri, 18 Oct 2002 09:02:34 -0400

I've had phenomenally bad luck using consvar to change NIC settings
on a running system. Is this common? I am not sure if it's only ES40s,
or also other systems. This particular machine is running T64 v5.1A,
but I've also done it on systems running 4.0F. I know, the obvious thing
is to *STOP TRYING TO CHANGE CONSOLE VARIABLES ON A RUNNING SYSTEM*, but
the man page makes it look so easy and reasonable!!! Anyone else had
these kinds of crashes, know the explanation, or know of any fixes for them?

I was doing:
        consvar -s ewc0_mode FastFD
where ewc0 was an unused interface.

The error is appended here:
======================= Binary Error Log event =======================
EVM event name: sys.unix.binlog.op.panic._savecore.True

    Binary error log events are posted through the binlogd daemon, and
    stored in the binary error log file, /var/adm/binary.errlog. This
    event is posted by kernel components as part of the system panic
    process.

    Action: Contact your service provider.

======================================================================

Formatted Message:
    System panic: panic (cpu 2): tb_shoot ack timeout

Event Data Items:
    Event Name : sys.unix.binlog.op.panic._savecore.True
    Priority : 700
    PID : 438
    PPID : 1
    Event Id : 99
    Timestamp : 18-Oct-2002 08:53:35
    Host Name : myhostname
    User Name : root
    Format : System panic: $message
    Reference : cat:evmexp.cat:300

Variable Items:
    subid_class (INT32) = 302
    message (STRING) = "panic (cpu 2): tb_shoot ack timeout"
    binlog_event (OPAQUE) = [OPAQUE VALUE: 240 bytes]
    _savecore (BOOLEAN) = True

============================ Translation =============================
binlogshow: DECevent handshake protocol error
======================================================================

TIA...

Judith Reed
Received on Fri Oct 18 2002 - 13:04:08 NZDT

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