ld vs. dkctl in netbsd-8

[Louis Guillaume <louis%zabrico.com@localhost>]

I just noticed this message in the console after a reboot:

  raid2: get cache for component /dev/dk1 failed

which is a bit troubling, considering I didn't get a similar message for 
dk0, which is the other half of that raid1 pair (on raidframe).

These drives are on separate (slightly different) twa controllers, using 
the ld driver. I recently updated this driver due to MP_SAFE crashes by 
applying the patch in this PR (the latest patch)...

  http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=53628

Here's an excerpt from the dmesg. Is this cache discrepancy a potential 
performance hit or should I be otherwise concerned?

Any thoughts or help would be great.

Louis


$ dmesg |egrep "(ld[03]|twa)"
twa0 at pci3 dev 3 function 0: 3ware 9550SX series (rev. 0x00)
twa0: interrupting at ioapic1 pin 0
twa0: AEN 0x0053: INFO: Battery capacity test needed:
twa0: 8 ports, Firmware FE9X 3.08.00.022, BIOS BE9X 3.08.00.004
twa0: Monitor BL9X 3.01.00.006, PCB Rev 032 , Achip 1.70    , Pchip 1.60
twa0: port 0: ST2000LM003 HN-M201RAD                   1907729 MB
twa0: port 6: ST31000340AS                             953869 MB
twa0: port 7: WDC WD20EZRX-00D8PB0                     1907729 MB
twa0: AMCC    9550SX-8LP DISK 3.08CH117795F9744600A1E6
ld0 at twa0 unit 0
ld0: 1862 GB, 243151 cyl, 255 head, 63 sec, 512 bytes/sect x 3906228224 
sectors
twa0: AMCC    9550SX-8LP DISK 3.086QJ04D9TFF0414003736
ld1 at twa0 unit 1
twa0: AMCC    9550SX-8LP DISK 3.08M205246162E1F500C060
ld2 at twa0 unit 2
twa1 at pci3 dev 6 function 0: 3ware 9550SX series (rev. 0x00)
twa1: interrupting at ioapic1 pin 4
twa1: 4 ports, Firmware FE9X 3.08.00.029, BIOS BE9X 3.10.00.003
twa1: Monitor BL9X 3.02.00.001, PCB Rev 032 , Achip 1.70    , Pchip 1.60
twa1: port 0: ST2000LM003 HN-M201RAD                   1907729 MB
twa1: AMCC    9550SX-4LP DISK 3.08AGC11854F975D0005898
ld3 at twa1 unit 0
ld3: 1862 GB, 243151 cyl, 255 head, 63 sec, 512 bytes/sect x 3906228224 
sectors
ld0: GPT GUID: fc0d50d8-d5aa-4a48-b731-2b91560e3c54
ld3: GPT GUID: 0e9593b3-65ff-493c-bb2b-cfc6bf839c6d
dk0 at ld0: "boot0", 524288 blocks at 128, type: ffs
dk1 at ld0: "disk0", 3905703680 blocks at 524416, type: raidframe
dk2 at ld3: "boot1", 524288 blocks at 128, type: ffs
dk3 at ld3: "disk1", 3905703680 blocks at 524416, type: raidframe