ioscan Error have you seen it?, Know a fix?

[generic_1]

This is out of dmesg after I added in 287 luns to the system:
ioconfigd: create daemon failed 11

# model
9000/800/S16K-A
# uname -a
HP-UX B.11.11 U 9000/800 3720125535 unlimited-user license
# kmtune
Parameter Current Dyn Planned Module Version
===============================================================================
NSTRBLKSCHED - - 2
NSTREVENT 50 - 50
NSTRPUSH 16 - 16
NSTRSCHED 0 - 0
STRCTLSZ 1024 - 1024
STRMSGSZ 65535 - 65535
acctresume 4 - 4
acctsuspend 2 - 2
aio_listio_max 256 - 256
aio_max_ops 2048 - 2048
aio_physmem_pct 10 - 10
aio_prio_delta_max 20 - 20
allocate_fs_swapmap 0 - 0
alwaysdump 1 - 1
bcvmap_size_factor 2 - 2
bootspinlocks - - 256
bufcache_hash_locks 256 - 256
bufpages 0 - (NBUF*2)
chanq_hash_locks 256 - 256
clicreservedmem 0 - 0
core_addshmem_read 0 Y 0
core_addshmem_write 0 Y 0
create_fastlinks 1 - 1
dbc_max_pct 4 - 4
dbc_min_pct 1 - 1
default_disk_ir 1 - 1
desfree - - 0
disksort_seconds 0 - 0
dnlc_hash_locks 512 - 512
dontdump 0 - 0
dskless_node - - 0
dst 1 - 1
effective_maxpid - - ((NPROC<=30000)?30000:(NPROC*5/4))
eisa_io_estimate - - 0x300
enable_idds 0 - 0
eqmemsize 15 - 15
executable_stack 1 - 1
fcp_large_config 0 - 0
file_pad - - 10
fs_async 0 - 0
ftable_hash_locks 64 - 64
hdlpreg_hash_locks 128 - 128
hfs_max_ra_blocks 8 - 8
hfs_max_revra_blocks 8 - 8
hfs_ra_per_disk 64 - 64
hfs_revra_per_disk 64 - 64
hp_hfs_mtra_enabled 1 - 1
hpux_aes_override - - 0
initmodmax 50 - 50
io_ports_hash_locks 64 - 64
iomemsize - - 40000
ksi_alloc_max 262464 - (NPROC*8)
ksi_send_max 32 - 32
lotsfree - - 0
max_async_ports 50 - 50
max_fcp_reqs 512 - 512
max_mem_window 0 - 0
max_thread_proc 64 - 64
maxdsiz 0x80000000 - 0X80000000
maxdsiz_64bit 0x80000000 - 0X80000000
maxfiles 1024 - 1024
maxfiles_lim 2048 Y 2048
maxqueuetime - - 0
maxssiz 0x10000000 - 0X10000000
maxssiz_64bit 0x10000000 - 0X10000000
maxswapchunks 4096 - 4096
maxtsiz 0x40000000 Y 0X40000000
maxtsiz_64bit 0x40000000 Y 0X40000000
maxuprc 4096 Y 4096
maxusers 2048 - 2048
maxvgs 256 - 256
mesg 1 - 1
minfree - - 0
modstrmax 500 - 500
msgmap 1026 - (2+MSGTQL)
msgmax 16384 Y 16384
msgmnb 32768 Y 32768
msgmni 200 - 200
msgseg 4096 - 4096
msgssz 32 - 32
msgtql 1024 - 1024
nbuf 0 - 0
ncallout 57446 - (16+NKTHREAD)
ncdnode 150 - 150
nclist 32868 - (100+16*MAXUSERS)
ncsize 41416 - (NINODE+VX_NCSIZE)+(8*DNLC_HASH_LOCKS)
ndilbuffers 30 - 30
netisr_priority - - -1
netmemmax - - 0
nfile 61875 - ((16*(NPROC+16+MAXUSERS)/10+32+2*(NPTY+NSTRPTY))+4000)
nflocks 12000 - 12000
nhtbl_scale 0 - 0
ninode 36296 - ((NPROC+16+MAXUSERS)+400+(2*NPTY))
nkthread 57430 - (((NPROC*7)/4)+16)
nni - - 2
no_lvm_disks 0 - 0
nproc 32808 - ((20+8*MAXUSERS)*2)
npty 512 - 512
nstrpty 512 - 512
nstrtel 120 - 120
nswapdev 10 - 10
nswapfs 10 - 10
nsysmap 65616 - ((NPROC)>800?2*(NPROC):800)
nsysmap64 65616 - ((NPROC)>800?2*(NPROC):800)
o_sync_is_o_dsync 0 - 0
page_text_to_local - - 0
pfdat_hash_locks 128 - 128
public_shlibs 1 - 1
region_hash_locks 128 - 128
remote_nfs_swap 0 - 0
rng_bitvals - - 654 rng -
rng_log_deskew - - 0 rng -
rng_log_raw - - 0 rng -
rng_sleeptime - - 2 rng -
rtsched_numpri 32 - 32
scroll_lines 100 - 100
scsi_max_qdepth 8 Y 8
scsi_maxphys 1048576 - 1048576
sema 1 - 1
semaem 16384 - 16384
semmap 5002 - (SEMMNI+2)
semmni 5000 - 5000
semmns 16384 - 16384
semmnu 2048 - 2048
semmsl 2048 Y 2048
semume 4096 - 4096
semvmx 32767 - 32767
sendfile_max 0 - 0
shmem 1 - 1
shmmax 0x100000000 Y 0X100000000
shmmni 1024 - 1024
shmseg 1024 Y 1024
st_ats_enabled 0 - 0
st_fail_overruns 0 - 0
st_large_recs 0 - 0
st_san_safe 0 - 0
streampipes 0 - 0
swapmem_on 1 - 1
swchunk 2048 - 2048
sysv_hash_locks 128 - 128
tcphashsz 0 - 0
timeslice 10 - (100/10)
timezone 420 - 420
unlockable_mem 0 - 0
vas_hash_locks 128 - 128
vnode_cd_hash_locks 128 - 128
vnode_hash_locks 128 - 128
vps_ceiling 16 - 16
vps_chatr_ceiling 1048576 - 1048576
vps_pagesize 4 - 4
vx_fancyra_enable 0 - 0
vx_maxlink 32767 - 32767
vx_ncsize 1024 - 1024
vx_ninode 0 - 0
vxfs_max_ra_kbytes 1024 - 1024
vxfs_ra_per_disk 1024 - 1024
#

[melvyn burnard]

It looks like ioconfigd failed with an eror 11.
looking at errno.h:
#define EAGAIN 11 /* No more processes */

So it looks like it had a problem spawning a process or thread.


This appears to be a rare occurrence, and is just a warning.

[Steve Steel]

Hi

It is indeed a warning


error 11 is eagain.

see http://docs.hp.com/en/TKP-90202/re33.html

It seems that there were too many threads being spawned and it waited until threads exited and then continued.

Rare overload condition but you could change tuning.

Steve STeel

[Florian Heigl (new acc)]

Just out of curiousity, are You sure You maxfiles_lim ought to be higher than maxfiles?

[Matti_Kurkela]

Florian, the difference between maxfiles_lim and maxfiles is actually useful sometimes.

When you have several applications which require different amounts of open files, you can set maxfiles_lim according to the needs of the "largest" application, and maxfiles according to the needs of a "normal" application.

Before starting the "largest" application, use "ulimit -n" to increase the default "soft" limit (caused by maxfiles) up to the "hard" limit set by maxfiles_lim.

That way, the "largest" application can get the resources it needs and the "normal" applications still get limited early enough if they happen to run amok and start eating resources.

[generic_1]

Thanks for your replys everyone. Glad to see no one said do you have patch xxxx :). Ill keep and I out and if it continues ill up the kernel parameters.

[generic_1]

Keeping an eye on it, If it continues I'll up my kernel parameters.

[Florian Heigl (new acc)]

Matti, thank You for the update, I thought the parameters worked vice versa. Shame on me and thank You for correcting me :)