make tinderbox failures

Running make tinderbox locally I see failures that aren't being
reported by the automated tinderbox builds.  I'm curious what's
different about the environment.  Failures are in the following:

arm ARMADAXP kernel failed, check _.arm.ARMADAXP for details
mips SENTRY5 kernel failed, check _.mips.SENTRY5 for details
mips XLPN32 kernel failed, check _.mips.XLPN32 for details
mips XLR kernel failed, check _.mips.XLR for details
mips XLRN32 kernel failed, check _.mips.XLRN32 for details

_.arm.ARMADAXP:
/data/sb/bsd.git/sys/arm/mv/armadaxp/armadaxp_mp.c: In function
'platform_mp_start_ap':
/data/sb/bsd.git/sys/arm/mv/armadaxp/armadaxp_mp.c:181: warning:
passing argument 1 of 'pmap_kextract' makes integer from pointer
without a cast

_.mips.SENTRY5:
config: Error: device "siba" is unknown

_.mips.XLPN32 and _.mips.XLRN32:
linking kernel.debug
stack_machdep.o: In function `stack_capture':
/data/sb/bsd.git/sys/mips/mips/stack_machdep.c:(.text+0x34): undefined
reference to `stack_zero'
/data/sb/bsd.git/sys/mips/mips/stack_machdep.c:(.text+0x34):
relocation truncated to fit: R_MIPS_26 against `stack_zero'
/data/sb/bsd.git/sys/mips/mips/stack_machdep.c:(.text+0x13c):
undefined reference to `stack_put'
/data/sb/bsd.git/sys/mips/mips/stack_machdep.c:(.text+0x13c):
relocation truncated to fit: R_MIPS_26 against `stack_put'

_.mips.XLR:
linking kernel.debug
board.o: In function `xlr_board_info_setup':
/data/sb/bsd.git/sys/mips/rmi/board.c:(.text+0x3a4): undefined
reference to `__ucmpdi2'
/data/sb/bsd.git/sys/mips/rmi/board.c:(.text+0x3a4): relocation
truncated to fit: R_MIPS_26 against `__ucmpdi2'
/data/sb/bsd.git/sys/mips/rmi/board.c:(.text+0x3e4): undefined
reference to `__ucmpdi2'
/data/sb/bsd.git/sys/mips/rmi/board.c:(.text+0x3e4): relocation
truncated to fit: R_MIPS_26 against `__ucmpdi2'

Since I don't work on arm or mips I generally ignore these.  But it
makes it harder to have confidence in a global change when make
tinderbox throws errors locally.

Thanks,
matthew