dl380 revisit hang on boot with smp

[brad miele]

Hi,

Just wanted to see if anyoone has been able to shed any insight on this,

System: DL380 G3 (happens on my G4s also)
CPU 2 x Intel(R) Xeon(TM) CPU 2.80GHz (2785.70-MHz 686-class CPU)
Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
   Features2=0x4400<CNTX-ID,<b14>>
   Logical CPUs per core: 2

When I boot to an SMP kernel, the system hangs for a few minutes between

Waiting 5 seconds for SCSI devices to settle
SMP: AP CPU #2 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #3 Launched!
da0 at ciss0 bus 0 target 0 lun 0
da0: <COMPAQ RAID 1  VOLUME OK> Fixed Direct Access SCSI-0 device
da0: 135.168MB/s transfers
da0: 138919MB (284506560 512 byte sectors: 255H 32S/T 34866C)

and

Trying to mount root from ufs:/dev/da0s1a

doesn't seem to hurt anything, but delays reboot of my production boxes 
just long enough for the phone to start ringing :)

Happens on my 6.1-STABLE (from august) and my 6.2-PRERELEASE current as of 
mid january. doesn't occur on my 5.4 machines.

anyone figure out how to alleviate this?

best regards,

Brad
---------------------
Brad Miele
VP Technology
IPNStock.com
866 476 7862 x902
bmiele at ipnstock.com