ULE problems on HTT SMP

[Andrew Gallatin]

Jeff Roberson writes:
 > 
 > Can you call kseq_print(0) and kseq_print(1) from ddb?
 > 

I found a different problem which is nearly as interesting.
Note that ps thinks sysctl is on cpu 255...


Boot hangs here: 

cd0: Attempt to query device size failed: NOT READY, Medium not
present
SMP: AP CPU #1 Launched!
Mounting root from ufs:/dev/ad0s1a
Loading configuration files.
Entropy harvesting: interrupts ethernet point_to_point.

	<hang, hit ^T a few times, neither that nor ^C helps>

load: 0.97  cmd: sysctl 62 [running] 0.00u 0.00s 0% 200k
load: 0.97  cmd: sysctl 62 [running] 0.00u 0.00s 0% 200k
load: 0.97  cmd: sysctl 62 [running] 0.00u 0.00s 0% 200k
load: 0.97  cmd: sysctl 62 [running] 0.00u 0.00s 0% 200k
[halt - sent]
Stopped at      siointr1+0xd5:  jmp     siointr1+0x200
db> kseq_print(0)
No such command
db> call kseq_print(0)
kseq:
        load:           0
        load ITHD:      0
        load REALTIME:  0
        load TIMESHARE: 0
        load IDLE:      0
        nicemin:        0
        nice counts:
0xe
db> call kseq_print(1)
kseq:
        load:           1
        load ITHD:      0
        load REALTIME:  0
        load TIMESHARE: 1
        load IDLE:      0
        nicemin:        0
        nice counts:
                0 = 1
0x8
db> c

db> ps
  pid   proc     addr    uid  ppid  pgrp  flag   stat  wmesg    wchan  cmd
   62 c41ec000 d8d9a000    0    60    42 0004002 [CPU 255] sysctl
   60 c4175d3c d7bcc000    0    58    42 0000002 [SLP]wait 0xc4175d3c] sh
   58 c4175790 d7ba2000    0    51    42 0000002 [SLP]wait 0xc4175790] sh
   51 c4175b58 d7bcb000    0    42    42 0000002 [SLP]wait 0xc4175b58] sh
   42 c4025b58 d7b66000    0     1    42 0004002 [SLP]wait 0xc4025b58] sh
   41 c4025d3c d7b67000    0     0     0 0000204 [SLP]nfsidl 0xc03f9b8c] nfsiod 3
   40 c4173000 d7b96000    0     0     0 0000204 [SLP]nfsidl 0xc03f9b88] nfsiod 2
   39 c41731e4 d7b97000    0     0     0 0000204 [SLP]nfsidl 0xc03f9b84] nfsiod 1
   38 c41733c8 d7b98000    0     0     0 0000204 [SLP]nfsidl 0xc03f9b80] nfsiod 0
   37 c41735ac d7b99000    0     0     0 0000204 [SLP]vlruwt 0xc41735ac] vnlru
   36 c4173790 d7b9a000    0     0     0 0000204 [SLP]syncer 0xc03cacc0] syncer
   35 c4173974 d7b9b000    0     0     0 0000204 [SLP]psleep 0xc03f7e3c] bufdaemon
   34 c4173b58 d7b9c000    0     0     0 000020c [SLP]pgzero 0xc03ffc08] pagezero
    9 c4173d3c d7b9d000    0     0     0 0000204 [SLP]psleep 0xc03ffc34] vmdaemon
    8 c4175000 d7b9e000    0     0     0 0000204 [SLP]psleep 0xc03ffc20] pagedaemon
   33 c41751e4 d7b9f000    0     0     0 0000204 new [IWAIT] irq8: rtc
   32 c3f795ac d7b2b000    0     0     0 0000204 new [IWAIT] irq0: clk
   31 c3f79790 d7b2c000    0     0     0 0000204 [IWAIT] irq6: fdc0
   30 c3f79974 d7b2d000    0     0     0 0000204 new [IWAIT] irq7: ppc0
   29 c3f79b58 d7b2e000    0     0     0 0000204 new [IWAIT] irq3: sio1
   28 c3f79d3c d7b2f000    0     0     0 0000204 new [IWAIT] irq4: sio0
   27 c4025000 d7b39000    0     0     0 0000204 [IWAIT] swi0: tty:sio
   26 c40251e4 d7b3a000    0     0     0 0000204 new [IWAIT] irq11: em0
   25 c40253c8 d7b3b000    0     0     0 0000204 [IWAIT] irq15: ata1
   24 c40255ac d7b3c000    0     0     0 0000204 [IWAIT] irq14: ata0
   23 c4025790 d7b3d000    0     0     0 0000204 new [IWAIT] irq5: fxp0
    7 c4025974 d7b3e000    0     0     0 0000204 [SLP]actask 0xc04e40cc] acpi_task2
    6 c150a1e4 d6929000    0     0     0 0000204 [SLP]actask 0xc04e40cc] acpi_task1
    5 c150a3c8 d692a000    0     0     0 0000204 [SLP]actask 0xc04e40cc] acpi_task0
   22 c150a5ac d692b000    0     0     0 0000204 new [IWAIT] irq9: acpi0
   21 c150a790 d692c000    0     0     0 0000204 [IWAIT] swi3: cambio
   20 c150a974 d692d000    0     0     0 0000204 new [IWAIT] swi2: camnet
   19 c150ab58 d692e000    0     0     0 0000204 new [IWAIT] swi5:+
   18 c150ad3c d6956000    0     0     0 0000204 new [IWAIT] swi6: task queue
   17 c3f79000 d7b28000    0     0     0 0000204 [IWAIT] swi6: acpitaskq
   16 c3f791e4 d7b29000    0     0     0 0000204 [SLP]sleep 0xc03b5dc0] random
    4 c3f793c8 d7b2a000    0     0     0 0000204 [SLP]- 0xc03c41fc] g_down
    3 c1503000 d68d2000    0     0     0 0000204 [SLP]- 0xc03c41f8] g_up
    2 c15031e4 d6921000    0     0     0 0000204 [SLP]- 0xc03c41f0] g_event
   15 c15033c8 d6922000    0     0     0 0000204 new [IWAIT] swi4: vm
   14 c15035ac d6923000    0     0     0 000020c [IWAIT] swi7: tty:sio clock
   13 c1503790 d6924000    0     0     0 0000204 new [IWAIT] swi1: net
   12 c1503974 d6925000    0     0     0 000020c [CPU 0] idle: cpu0
   11 c1503b58 d6926000    0     0     0 000020c [CPU 1] idle: cpu1
    1 c1503d3c d6927000    0     0     1 0004200 [SLP]wait 0xc1503d3c] init
   10 c150a000 d6928000    0     0     0 0000204 [CV]ktrace 0xc03c7794] ktrace
    0 c03c42c0 c0513000    0     0     0 0000200 [SLP]sched 0xc03c42c0] swapper
db> sho pcpu
cpuid        = 0
curthread    = 0xc1504980: pid 12 "idle: cpu0"
curpcb       = 0xd68edda0
fpcurthread  = none
idlethread   = 0xc1504980: pid 12 "idle: cpu0"
currentldt   = 0x28
spin locks held:
db> sho pcpu 1
cpuid        = 1
curthread    = 0xc1504850: pid 11 "idle: cpu1"
curpcb       = 0xd68eada0
fpcurthread  = none
idlethread   = 0xc1504850: pid 11 "idle: cpu1"
currentldt   = 0x28
spin locks held:
db> t 62
mi_switch(c4177720,df,c036cbb1,ef,10000) at mi_switch+0x210
ast(d7bb8d48) at ast+0x3a0
doreti_ast() at doreti_ast+0x17


I hope that helps..

Drew