Missing block device /dev/sdX on iSCSI Initiator

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Joern Koerner

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Apr 4, 2011, 5:09:54 AM4/4/11
to open-iscsi
Hi all,

I have an iSCSI target, runing tgt which works fine with (tested for
example with Win,VMWare ect.)
Now I want to setup a Linux initiator running open-iscsi but the block
device /dev/sdX is not created. Discovery an login works fine so far,
here's the log from iscsid:

iscsid: in kstart_conn
iscsid: in __kipc_call
iscsid: in kwritev
iscsid: in nlpayload_read
iscsid: in nlpayload_read
iscsid: scanning host19 from pid 8774
iscsid: Connection3:0 to [target: iqn.2011-03.de.XXXX.in:iscsi-
backup.target1.lun1, portal: XXX.XXX.XXX.XXX,3260] through [iface:
iface] is operational now
iscsid: iscsid: scanning host19
thread removed

iscsid: scanning host19 completed

iscsid: mgmt_ipc_write_rsp: rsp to fd 5
iscsid: reaped pid 8774, reap_count now 0

I testes some different distributions and it works fine (including the
creation of /dev/sdX) on CentOS/RedHat but for example Ubuntu and
ArchLinux it won't work.

Has anyone some tips/ideas how to solve this, please?

kindly regards,
Joern

Mike Christie

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Apr 5, 2011, 1:45:34 PM4/5/11
to open-...@googlegroups.com, Joern Koerner
On 04/04/2011 04:09 AM, Joern Koerner wrote:
> I testes some different distributions and it works fine (including the
> creation of /dev/sdX) on CentOS/RedHat but for example Ubuntu and
> ArchLinux it won't work.

What version of the tools and what kernel are you using with Ubuntu and
ArchLinux?

There was some sysfs changes that broke iscsiadm. You might be hitting
them in some distros with older tools and newer kernels. After you login
could you send the output of

iscsiadm -m session -R -d 8

so I can see the output of a manual scan.

Joern Koerner

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Apr 6, 2011, 5:30:32 AM4/6/11
to Mike Christie, open-...@googlegroups.com

I'm using open-iscsi 2.0.872 with kernel 2.6.37.
Archlinux is always in sync with the official releases and uses a nearly
vanilla kernel.

In the meantime I managed to manually find a workaround, but this is
still nothing to work with a real server-setup...
When I start iscsid I get a kernel message like:

scsi10 : iSCSI Initiator over TCP/IP

The host is being created in /sys/bus/scsi/devices/host10 but the target
is missing. Well from this point the output of iscsiadm -m session -R -d
8 is below.

A rescan of the host has no success.
$echo "- - -" > /sys/class/scsi_host/host10/scan

Now, when I manally add the target with
$echo "scsi add-single-device 10 0 0 1" >/proc/scsi/scsi
dmesg tells me that the target has been added and everything works fine.

scsi 10:0:0:1: Direct-Access Areca ARC-1680-VOL#001 R001 PQ: 0
ANSI: 5
sd 10:0:0:1: [sdb] physical block alignment offset: 1850368
sd 10:0:0:1: [sdb] 3906247680 512-byte logical blocks: (1.99 TB/1.81 TiB)
sd 10:0:0:1: [sdb] Write Protect is off
sd 10:0:0:1: Attached scsi generic sg2 type 0
sd 10:0:0:1: [sdb] Mode Sense: cb 00 00 08
sd 10:0:0:1: [sdb] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
sdb: unknown partition table
sd 10:0:0:1: [sdb] Attached SCSI disk

iscsiadm -m session -R -d 8 now has exactly one more line compared with
the output at the end:
...
>>>> iscsiadm: rescanning device 10:0:0:1 <<<<
iscsiadm: scanning host10
iscsiadm: scanning host10 completed


I also patched iscsid which gave me an notice for newer kernel but this
has nothing to do with this problem:
iscsid (1129): /proc/1129/oom_adj is deprecated, please use
/proc/1129/oom_score_adj instead.

--- a/usr/iscsi_util.c 2011-04-04 12:22:24.000000000 +0200
+++ b/usr/iscsi_util.c 2011-04-04 12:22:40.000000000 +0200
@@ -54,7 +54,7 @@
char path[48];

nice(-10);
- sprintf(path, "/proc/%d/oom_adj", getpid());
+ sprintf(path, "/proc/%d/oom_score_adj", getpid());
fd = open(path, O_WRONLY);
if (fd < 0) {
return -1;


$iscsiadm -m session -R -d 8
iscsiadm: Max file limits 1024 1024

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_session/session5'/'targetname'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_session/session5/targetname'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_session/session5/targetname'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_session/session5/targetname' with attribute value
'iqn.2011-03.de.XXXXXXXXX.in:iscsi-backup.target1.lun1'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_session/session5'/'tpgt'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_session/session5/tpgt'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_session/session5/tpgt'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_session/session5/tpgt' with attribute value '1'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_connection/connection5:0'/'persistent_address'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_connection/connection5:0/persistent_address'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_connection/connection5:0/persistent_address'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_connection/connection5:0/persistent_address' with
attribute value 'XXX.XXX.XXX.XXX'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_connection/connection5:0'/'address'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_connection/connection5:0/address'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_connection/connection5:0/address'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_connection/connection5:0/address' with attribute value
'XXX.XXX.XXX.XXX'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_connection/connection5:0'/'persistent_port'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_connection/connection5:0/persistent_port'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_connection/connection5:0/persistent_port'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_connection/connection5:0/persistent_port' with
attribute value '3260'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_connection/connection5:0'/'port'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_connection/connection5:0/port'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_connection/connection5:0/port'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_connection/connection5:0/port' with attribute value '3260'

iscsiadm: sysfs_device_get: open '/class/iscsi_session/session5'

iscsiadm: sysfs_resolve_link: path link '/class/iscsi_session/session5'
points to '../../devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_resolve_link: base '/class/iscsi_session/session5', tail
'devices/platform/host10/session5/iscsi_session/session5', back 2

iscsiadm: sysfs_resolve_link: after moving back ''

iscsiadm: sysfs_device_get: new uncached device
'/devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_device_set_values: kernel='session5'

iscsiadm: sysfs_device_set_values: kernel_number='5'

iscsiadm: sysfs_device_get: subsystem link
'/sys/devices/platform/host10/session5/iscsi_session/session5/subsystem'
points to '../../../../../../class/iscsi_session'

iscsiadm: sysfs_device_get: add to cache
'devpath=/devices/platform/host10/session5/iscsi_session/session5',
subsystem='iscsi_session', driver=''

iscsiadm: sysfs_device_get_parent: open
'/devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_device_get_parent:
'/devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_device_get: open
'/devices/platform/host10/session5/iscsi_session'

iscsiadm: sysfs_device_get: new uncached device
'/devices/platform/host10/session5/iscsi_session'

iscsiadm: sysfs_device_set_values: kernel='iscsi_session'

iscsiadm: sysfs_device_set_values: kernel_number=''

iscsiadm: sysfs_device_get: add to cache
'devpath=/devices/platform/host10/session5/iscsi_session', subsystem='',
driver=''

iscsiadm: sysfs_device_get_parent: open
'/devices/platform/host10/session5/iscsi_session'

iscsiadm: sysfs_device_get_parent:
'/devices/platform/host10/session5/iscsi_session'

iscsiadm: sysfs_device_get: open '/devices/platform/host10/session5'

iscsiadm: sysfs_device_get: new uncached device
'/devices/platform/host10/session5'

iscsiadm: sysfs_device_set_values: kernel='session5'

iscsiadm: sysfs_device_set_values: kernel_number='5'

iscsiadm: sysfs_device_get: add to cache
'devpath=/devices/platform/host10/session5', subsystem='', driver=''

iscsiadm: sysfs_device_get_parent: open '/devices/platform/host10/session5'

iscsiadm: sysfs_device_get_parent: '/devices/platform/host10/session5'

iscsiadm: sysfs_device_get: open '/devices/platform/host10'

iscsiadm: sysfs_device_get: new uncached device '/devices/platform/host10'

iscsiadm: sysfs_device_set_values: kernel='host10'

iscsiadm: sysfs_device_set_values: kernel_number='10'

iscsiadm: sysfs_device_get: subsystem link
'/sys/devices/platform/host10/subsystem' points to '../../../bus/scsi'

iscsiadm: sysfs_device_get: add to cache
'devpath=/devices/platform/host10', subsystem='scsi', driver=''

iscsiadm: sysfs_attr_get_value: open '/class/scsi_host/host10'/'proc_name'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/scsi_host/host10/proc_name'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/scsi_host/host10/proc_name'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/scsi_host/host10/proc_name' with attribute value 'iscsi_tcp'

iscsiadm: in read_transports
iscsiadm: Adding new transport be2iscsi
iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_transport/be2iscsi'/'handle'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/be2iscsi/handle'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/be2iscsi/handle'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/be2iscsi/handle' with attribute value
'4170378528'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_transport/be2iscsi'/'caps'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/be2iscsi/caps'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/be2iscsi/caps'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/be2iscsi/caps' with attribute value '0x8b9'

iscsiadm: Adding new transport bnx2i
iscsiadm: sysfs_attr_get_value: open '/class/iscsi_transport/bnx2i'/'handle'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/bnx2i/handle'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/bnx2i/handle'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/bnx2i/handle' with attribute value '4170106592'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_transport/bnx2i'/'caps'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/bnx2i/caps'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/bnx2i/caps'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/bnx2i/caps' with attribute value '0x839'

iscsiadm: Adding new transport cxgb3i
iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_transport/cxgb3i'/'handle'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/cxgb3i/handle'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/cxgb3i/handle'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/cxgb3i/handle' with attribute value '4169167712'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_transport/cxgb3i'/'caps'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/cxgb3i/caps'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/cxgb3i/caps'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/cxgb3i/caps' with attribute value '0x3039'

iscsiadm: Adding new transport tcp
iscsiadm: sysfs_attr_get_value: open '/class/iscsi_transport/tcp'/'handle'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/tcp/handle'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/tcp/handle'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/tcp/handle' with attribute value '4170172032'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_transport/tcp'/'caps'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_transport/tcp/caps'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_transport/tcp/caps'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_transport/tcp/caps' with attribute value '0x39'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_host/host10'/'hwaddress'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_host/host10/hwaddress'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_host/host10/hwaddress'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_host/host10/hwaddress' with attribute value '(null)'

iscsiadm: could not read hwaddress for host10

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_host/host10'/'ipaddress'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_host/host10/ipaddress'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_host/host10/ipaddress'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_host/host10/ipaddress' with attribute value
'XXX.XXX.XXX.XXX'

iscsiadm: sysfs_attr_get_value: open '/class/iscsi_host/host10'/'netdev'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_host/host10/netdev'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_host/host10/netdev'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_host/host10/netdev' with attribute value 'eth1'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_session/session5'/'initiatorname'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_session/session5/initiatorname'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_session/session5/initiatorname'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_session/session5/initiatorname' with attribute value
'iqn.2011-03.de.tuc.stor1:8ba8c821783e'

iscsiadm: sysfs_attr_get_value: open
'/class/iscsi_session/session5'/'ifacename'

iscsiadm: sysfs_attr_get_value: new uncached attribute
'/sys/class/iscsi_session/session5/ifacename'

iscsiadm: sysfs_attr_get_value: add to cache
'/sys/class/iscsi_session/session5/ifacename'

iscsiadm: sysfs_attr_get_value: cache
'/sys/class/iscsi_session/session5/ifacename' with attribute value 'iface'

iscsiadm: found targetname
iqn.2011-03.de.XXXXXXX.in:iscsi-backup.target1.lun1 address
XXX.XXX.100.6 pers address XXX.XXX.100.6 port 3260 pers port 3260 driver
tcp iface name iface ipaddress XXX.XXX.101.5 netdev eth1 hwaddress
iname iqn.2011-03.de.tuc.stor1:8ba8c821783e
iscsiadm: no rec info to match

Rescanning session [sid: 5, target:
iqn.2011-03.de.XXXXXXXX.in:iscsi-backup.target1.lun1, portal:
XXX.XXX.100.6,3260]
iscsiadm: sysfs_device_get: open '/class/iscsi_session/session5'

iscsiadm: sysfs_resolve_link: path link '/class/iscsi_session/session5'
points to '../../devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_resolve_link: base '/class/iscsi_session/session5', tail
'devices/platform/host10/session5/iscsi_session/session5', back 2

iscsiadm: sysfs_resolve_link: after moving back ''

iscsiadm: sysfs_device_get: found in cache
'/devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_device_get_parent: open
'/devices/platform/host10/session5/iscsi_session/session5'

iscsiadm: sysfs_device_get_parent: open
'/devices/platform/host10/session5/iscsi_session'

iscsiadm: sysfs_device_get_parent: open '/devices/platform/host10/session5'

iscsiadm: scanning host10
iscsiadm: scanning host10 completed

Mike Christie

unread,
Apr 7, 2011, 2:10:18 PM4/7/11
to open-...@googlegroups.com, Joern Koerner

So that is why the iscsiadm/iscsid scanning is not working. We do the
above command to scan the session.

Something in the kernel must have busted. Could you send me the kernel
.config that is used, and I will try to replicate that kernel here?

> Now, when I manally add the target with
> $echo "scsi add-single-device 10 0 0 1" >/proc/scsi/scsi
> dmesg tells me that the target has been added and everything works fine.
>

That goes through a slightly different kernel path. It skips the
transport and some driver model code. So I will look through that code.


> scsi 10:0:0:1: Direct-Access Areca ARC-1680-VOL#001 R001 PQ: 0 ANSI: 5
> sd 10:0:0:1: [sdb] physical block alignment offset: 1850368
> sd 10:0:0:1: [sdb] 3906247680 512-byte logical blocks: (1.99 TB/1.81 TiB)
> sd 10:0:0:1: [sdb] Write Protect is off
> sd 10:0:0:1: Attached scsi generic sg2 type 0
> sd 10:0:0:1: [sdb] Mode Sense: cb 00 00 08
> sd 10:0:0:1: [sdb] Write cache: enabled, read cache: enabled, doesn't
> support DPO or FUA
> sdb: unknown partition table
> sd 10:0:0:1: [sdb] Attached SCSI disk
>
> iscsiadm -m session -R -d 8 now has exactly one more line compared with
> the output at the end:
> ...
> >>>> iscsiadm: rescanning device 10:0:0:1 <<<<
> iscsiadm: scanning host10
> iscsiadm: scanning host10 completed
>
>
>
>
> I also patched iscsid which gave me an notice for newer kernel but this
> has nothing to do with this problem:
> iscsid (1129): /proc/1129/oom_adj is deprecated, please use
> /proc/1129/oom_score_adj instead.

Will fix that. Thanks!

Joern Koerner

unread,
Apr 7, 2011, 2:40:01 PM4/7/11
to Mike Christie, open-...@googlegroups.com

Sure. I've attached it.

>
>
>
>> Now, when I manally add the target with
>> $echo "scsi add-single-device 10 0 0 1" >/proc/scsi/scsi
>> dmesg tells me that the target has been added and everything works fine.
>>
>
> That goes through a slightly different kernel path. It skips the
> transport and some driver model code. So I will look through that code.
>
>

I would be very happy to have this fixed in future. In the meantime I
can live with the workaround ;-) Currently I cannot help very much in
investigating the iscsi code since I've to rescue sereval VMWare
machines from our old (and failed) storages in total of approx 30TB.
Anyway I'll continue in watching this list and (perhaps) help to fix
this issue.

Best,
Joern

config

Mike Christie

unread,
Apr 7, 2011, 2:59:43 PM4/7/11
to open-...@googlegroups.com, Joern Koerner
On 04/06/2011 04:30 AM, Joern Koerner wrote:
> A rescan of the host has no success.
> $echo "- - -" > /sys/class/scsi_host/host10/scan
>

> $echo "scsi add-single-device 10 0 0 1" >/proc/scsi/scsi

Weird. I checked the code and bother interfaces call the same function.

If you do

echo - - 1 > /sys/class/scsi_host/host10/scan

does that work? Maybe something with lun0.

Joern Koerner

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Apr 7, 2011, 3:37:19 PM4/7/11
to Mike Christie, open-...@googlegroups.com

Hmm, well currently I cannot manage to get anything working here from
@home ;-) May be it's me, but neither scsi add... nor /sys/class/..
works right now. I'll have a look on it tomorrow morning when I'm
back@work. I'm at host 46 now, which may (but should not) be the
problem, but I cannot reboot this emergency storage yet until all the
data has been moved...

Best,
J�rn

Mike Christie

unread,
Apr 8, 2011, 12:10:56 AM4/8/11
to Joern Koerner, open-...@googlegroups.com
On 04/07/2011 01:40 PM, Joern Koerner wrote:
>> Something in the kernel must have busted. Could you send me the kernel
>> .config that is used, and I will try to replicate that kernel here?
>
> Sure. I've attached it.
>

I tested the 2.6.37 kernel with that config and tgt and it worked fine
for me.

Could you send me your tgt targets.conf or your tgt script you use to
add luns?

Ulrich Windl

unread,
Apr 8, 2011, 2:29:35 AM4/8/11
to open-...@googlegroups.com
>>> Mike Christie <mich...@cs.wisc.edu> schrieb am 07.04.2011 um 20:10 in
Nachricht <4D9DFE0A...@cs.wisc.edu>:

Hi!

BTW: I had a similar problem with FibreChannel, but without iSCSI on two identical machines (hardware+software (SLES11 SP1)): One host found new LUNs, while the other did not. I could solve my problem by unloading/re-loading the HBA-driver. So maybe open-iscsi is not responsible for that.

[...]

Regards,
Ulrich


wozza...@gmail.com

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May 26, 2015, 12:07:59 PM5/26/15
to open-...@googlegroups.com, joern....@gmail.com
sorry I just realized I had a configuration error in the iet.conf file.

The config was all on one line - so there actually were no (LUN) devices on that target. 

I used microsoft iscsi initator to help find the problem.

wozza...@gmail.com

unread,
May 26, 2015, 12:07:59 PM5/26/15
to open-...@googlegroups.com, joern....@gmail.com
Hello,  I'd really like to use iscsi - it looks great, however I'm also getting an error similar to this.. on vanilla linux 3.16.0 with debian distro

ii  open-iscsi                                2.0.873+git0.3b4b4500-8   amd64

Anything you can suggest to help -
I can enable more debug logging but where? I think the interaction with sysfs is in iscsiadm?

Also echo add_device > uevent and host scan have NO effect on this system.

Also similar behavior on my ubuntu System  Linux home-server 3.13.0-51-generic #84-Ubuntu SMP Wed Apr 15 12:11:46 UTC 2015 i686 i686 i686 GNU/Linux
but I can't get config.gz from proc.


I can enable logging of daemon and modules and rebuild kernel if you can suggest what?


config.gz
daemon.log
kern.log
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