[Bug 232549] IPMI driver will attach, but ipmitool and commands sent to the device fail.

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=232549

            Bug ID: 232549
           Summary: IPMI driver will attach, but ipmitool and commands
                    sent to the device fail.
           Product: Base System
           Version: CURRENT
          Hardware: powerpc
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: sbruno at FreeBSD.org

The Tyan PPC hosts we have in the freebsd cluster are administered via IPMI.  I
recently added "device ipmi" to our default kernel configuration to test out
local interactions with /dev/ipmi0:

ipmi0: IPMI device rev. 1, firmware rev. 1.10, version 2.0, device support mask
0xbf
ipmi0: Number of channels 2
ipmi0: Attached watchdog
ipmi0: Establishing power cycle handler


The attach will emit one or two errors at startup that are only visible on the
console:

[464515.035780175,3] BT: seq 0x6f netfn 0x06 cmd 0x42: Maximum queue length
exceeded
[464515.036165129,3] BT: seq 0x6e netfn 0x06 cmd 0x42: Removed from queue


When attempting to interact with /dev/ipmi0 via ipmitool lan print, the
following spew occurs:

root at archon.nyi:~ # ipmitool lan print
Error receiving message: Input/output error
[464615.265945540,3] BT: seq 0x7c netfn 0x06 cmd 0x42: Maximum queue length
exceeded

Error rec[464615.266728266,3] BT: seq 0x7b netfn 0x06 cmd 0x42: Removed from
queue
eivin[464615.266996584,3] BT: seq 0x7e netfn 0x06 cmd 0x42: Maximum queue
length exceeded
g message:[464615.267162623,3] BT: seq 0x7d netfn 0x06 cmd 0x42: Removed from
queue
[464615.267270229,3] BT: seq 0x7f netfn 0x06 cmd 0x42: Maximum queue length
exceeded
 Input/output e[464615.267383071,3] BT: seq 0x7e netfn 0x06 cmd 0x42: Removed
from queue
[464615.267496041,3] BT: seq 0x80 netfn 0x06 cmd 0x42: Maximum queue length
exceeded
rror
Error rec[464615.267651110,3] BT: seq 0x7f netfn 0x06 cmd 0x42: Removed from
queue
eiving message: Input/output error

---- errors continue for several pages.

I'm going to make the "bold" assumption that ipmi(4) has never been used on a
BE system or at least on one recently.

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