[openib-general] reserve_mtt_segs:Cannot reserve 511 MTT segments

[Patrick Hofegger]

Hello,

Please look at the following syslog output... About 30 minutes later, 
the computer froze completely.

A reboot resumed normal operations, but the problem is serious.As seen 
as in the syslogs...

thanks for your help in advance.


May  2 14:38:29 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[262]: 

reserve_mtt_segs: Cannot reserve 511 MTT segments (506 dynamic MTT 
segments left)
May  2 14:38:29 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[1114]:
 alloc_reg_pages: Out of MTT entries
May  2 14:38:29 k02 kernel:  THH(1): XHH_mrwm_register_mr: rc=HH_EAGAIN
May  2 14:38:29 k02 kernel:  VIPKL(1): [MM_create_mr]:MM_mr_get_keys failed
May  2 14:38:29 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[262]: 

reserve_mtt_segs: Cannot reserve 511 MTT segments (506 dynamic MTT 
segments left)
May  2 14:38:29 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[1114]:
 alloc_reg_pages: Out of MTT entries
May  2 14:38:29 k02 kernel:  THH(1): XHH_mrwm_register_mr: rc=HH_EAGAIN
May  2 14:38:29 k02 kernel:  VIPKL(1): [MM_create_mr]:MM_mr_get_keys failed
May  2 14:38:30 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[262]: 

reserve_mtt_segs: Cannot reserve 511 MTT segments (506 dynamic MTT 
segments left)
May  2 14:38:30 k02 kernel:  THH(4): 
var/tmp/IBGD//tmp/openib/infiniband/ib_verbs/hw/mellanox-hca/mlxhh/thh/tptm.c[1114]:
 alloc_reg_pages: Out of MTT entries
May  2 14:38:30 k02 kernel:  THH(1): XHH_mrwm_register_mr: rc=HH_EAGAIN

(many more messages cut)

-- 
Ing. Patrick Hofegger 
Systems Engineer

IPS GmbH 
Franzosengraben 10 
A - 1030 Vienna 
T# +43 1 796 86 86 - 52 
F# +43 1 796 86 86 - 15 
http://www.ips.at