Quggaa locking hard.

[Mike Tancsa]

At 10:46 PM 12/3/2009, Zaphod Beeblebrox wrote:
>I'm still investigating this, but my quagga is locking hard on FreeBSD 8.0
>and not locking hard on 7.2.  It seems (at this early point in the
>investigation) that both bgpd and zebra are wedging and zebra is listed as
>being in the "RUN" state.
>
>curiously, the load is also 4.0 (exactly the number of cores in the machine)
>even though the machine also reads 100% idle.


I think I am seeing something similar on a test box.  I was loading 
up the box with 200k routes to do testing with.  Kernel is default, 
save for a few unused drivers removed. If I take out
options                FLOWTABLE               # per-cpu routing cache
from the kernel, load avg is back to normal.  This issue only seems 
to have come up in the past week or so as the previous kernel from ~8 
days ago was OK.

last pid:  6229;  load 
averages:  2.00,  2.00,  2.00 
                up 1+17:33:02  09:39:31
141 processes: 7 running, 106 sleeping, 28 waiting
CPU:  0.0% user,  0.0% nice, 22.2% system,  0.0% interrupt, 77.8% idle
Mem: 98M Active, 2233M Inact, 187M Wired, 36K Cache, 112M Buf, 979M Free
Swap: 8192M Total, 8192M Free

   PID USERNAME PRI NICE   SIZE    RES STATE   C   TIME   WCPU COMMAND
    22 root      76    -     0K     8K CPU3    3  41.5H 100.00% flowcleaner
    11 root     171 ki31     0K    32K CPU2    2  41.5H 100.00% {idle: cpu2}
    11 root     171 ki31     0K    32K CPU1    1  41.5H 100.00% {idle: cpu1}
    11 root     171 ki31     0K    32K RUN     0  41.4H 100.00% {idle: cpu0}
   869 root       4    0 64860K 64488K select  0   4:12  0.00% bgpd
    11 root     171 ki31     0K    32K RUN     3   2:09  0.00% {idle: cpu3}
    20 root      44    -     0K     8K syncer  0   1:00  0.00% syncer
    12 root     -32    -     0K   224K WAIT    1   0:47  0.00% {swi4: clock}
     0 root     -68    0     0K    80K -       2   0:03  0.00% {fw0_taskq}
  1230 root      76    0  3348K  1160K ttyin   2   0:02  0.00% getty
   863 root      96    0 24640K 24232K RUN     2   0:02  0.00% zebra
    12 root     -32    -     0K   224K WAIT    2   0:01  0.00% {swi4: clock}
    14 root     -16    -     0K     8K -       0   0:01  0.00% yarrow

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Mike Tancsa,                                      tel +1 519 651 3400
Sentex Communications,                            mike at sentex.net
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Cambridge, Ontario Canada                         www.sentex.net/mike