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Old 02-18-2009, 04:39 PM
 
Default Question on DM reload ioctl failure

In testing with rdac device handler on SLES11 RC4, there is an issue of
reload ioctl failure when trying to reload device map for rdac device.
Because of this, no multipathing device is created. The multipath tool
package version is the built-in version (0.4.8-37.1).

The error message is as follows:

Feb 18 09:52:33 | mpathc: verified path sdf dev_t 8:80
Feb 18 09:52:33 | mpathc: pgfailback = -2 (controller setting)
Feb 18 09:52:33 | mpathc: pgpolicy = group_by_prio (controller setting)
Feb 18 09:52:33 | mpathc: selector = round-robin 0 (internal default)
Feb 18 09:52:33 | mpathc: features = 0 (internal default)
Feb 18 09:52:33 | mpathc: hwhandler = 1 rdac (controller setting)
Feb 18 09:52:33 | mpathc: rr_weight = 1 (internal default)
Feb 18 09:52:33 | mpathc: minio = 1000 (config file default)
Feb 18 09:52:33 | mpathc: no_path_retry = NONE (internal default)
Feb 18 09:52:33 | mpathc: pg_timeout = NONE (internal default)
Feb 18 09:52:33 | mpathc: assembled map [0 1 rdac 1 1 round-robin 0 2 1
8:32 1000 8:80 1000]

Feb 18 09:52:33 | mpathc: set ACT_CREATE (map does not exist)
Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm info
mpathc NF [16384]
Feb 18 09:52:33 | mpathc: addmap [0 20971520 multipath 0 1 rdac 1 1
round-robin 0 2 1 8:32 1000 8:80 1000]

Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm create
mpathc mpath-360019b9000d456c0000029b74979b0da OF [16384]
Feb 18 09:52:33 | libdevmapper: libdm-common.c(599): mpathc: Stacking
NODE_ADD (253,0) 0:6 0640
Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm reload
mpathc OF [16384]
Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1691):
device-mapper: reload ioctl failed: Invalid argument
Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm remove
mpathc NF [16384]

Any suggestion?

Thanks,
Yanqing

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Old 02-18-2009, 08:24 PM
Chandra Seetharaman
 
Default Question on DM reload ioctl failure

Hi Yanqing,

I tested RC4 and did not come across this. Can you tell me what you were
trying, I will try to reproduce.

regards,

chandra
On Wed, 2009-02-18 at 11:39 -0600, Yanqing_Liu@Dell.com wrote:
> In testing with rdac device handler on SLES11 RC4, there is an issue of
> reload ioctl failure when trying to reload device map for rdac device.
> Because of this, no multipathing device is created. The multipath tool
> package version is the built-in version (0.4.8-37.1).
>
> The error message is as follows:
>
> Feb 18 09:52:33 | mpathc: verified path sdf dev_t 8:80
> Feb 18 09:52:33 | mpathc: pgfailback = -2 (controller setting)
> Feb 18 09:52:33 | mpathc: pgpolicy = group_by_prio (controller setting)
> Feb 18 09:52:33 | mpathc: selector = round-robin 0 (internal default)
> Feb 18 09:52:33 | mpathc: features = 0 (internal default)
> Feb 18 09:52:33 | mpathc: hwhandler = 1 rdac (controller setting)
> Feb 18 09:52:33 | mpathc: rr_weight = 1 (internal default)
> Feb 18 09:52:33 | mpathc: minio = 1000 (config file default)
> Feb 18 09:52:33 | mpathc: no_path_retry = NONE (internal default)
> Feb 18 09:52:33 | mpathc: pg_timeout = NONE (internal default)
> Feb 18 09:52:33 | mpathc: assembled map [0 1 rdac 1 1 round-robin 0 2 1
> 8:32 1000 8:80 1000]
>
> Feb 18 09:52:33 | mpathc: set ACT_CREATE (map does not exist)
> Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm info
> mpathc NF [16384]
> Feb 18 09:52:33 | mpathc: addmap [0 20971520 multipath 0 1 rdac 1 1
> round-robin 0 2 1 8:32 1000 8:80 1000]
>
> Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm create
> mpathc mpath-360019b9000d456c0000029b74979b0da OF [16384]
> Feb 18 09:52:33 | libdevmapper: libdm-common.c(599): mpathc: Stacking
> NODE_ADD (253,0) 0:6 0640
> Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm reload
> mpathc OF [16384]
> Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1691):
> device-mapper: reload ioctl failed: Invalid argument
> Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm remove
> mpathc NF [16384]
>
> Any suggestion?
>
> Thanks,
> Yanqing
>
> --
> dm-devel mailing list
> dm-devel@redhat.com
> https://www.redhat.com/mailman/listinfo/dm-devel

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Old 02-19-2009, 03:19 PM
"Moger, Babu"
 
Default Question on DM reload ioctl failure

We have not seen this problem. I suggest you to open a bugzilla with Novell and work with them.

Thanks
Babu Moger

-----Original Message-----
From: dm-devel-bounces@redhat.com [mailto:dm-devel-bounces@redhat.com] On Behalf Of Yanqing_Liu@Dell.com
Sent: Wednesday, February 18, 2009 11:40 AM
To: dm-devel@redhat.com
Subject: [dm-devel] Question on DM reload ioctl failure


In testing with rdac device handler on SLES11 RC4, there is an issue of reload ioctl failure when trying to reload device map for rdac device.
Because of this, no multipathing device is created. The multipath tool package version is the built-in version (0.4.8-37.1).

The error message is as follows:

Feb 18 09:52:33 | mpathc: verified path sdf dev_t 8:80 Feb 18 09:52:33 | mpathc: pgfailback = -2 (controller setting) Feb 18 09:52:33 | mpathc: pgpolicy = group_by_prio (controller setting) Feb 18 09:52:33 | mpathc: selector = round-robin 0 (internal default) Feb 18 09:52:33 | mpathc: features = 0 (internal default) Feb 18 09:52:33 | mpathc: hwhandler = 1 rdac (controller setting) Feb 18 09:52:33 | mpathc: rr_weight = 1 (internal default) Feb 18 09:52:33 | mpathc: minio = 1000 (config file default) Feb 18 09:52:33 | mpathc: no_path_retry = NONE (internal default) Feb 18 09:52:33 | mpathc: pg_timeout = NONE (internal default) Feb 18 09:52:33 | mpathc: assembled map [0 1 rdac 1 1 round-robin 0 2 1
8:32 1000 8:80 1000]

Feb 18 09:52:33 | mpathc: set ACT_CREATE (map does not exist) Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm info
mpathc NF [16384]
Feb 18 09:52:33 | mpathc: addmap [0 20971520 multipath 0 1 rdac 1 1 round-robin 0 2 1 8:32 1000 8:80 1000]

Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm create
mpathc mpath-360019b9000d456c0000029b74979b0da OF [16384]
Feb 18 09:52:33 | libdevmapper: libdm-common.c(599): mpathc: Stacking NODE_ADD (253,0) 0:6 0640 Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm reload
mpathc OF [16384]
Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1691):
device-mapper: reload ioctl failed: Invalid argument Feb 18 09:52:33 | libdevmapper: ioctl/libdm-iface.c(1674): dm remove
mpathc NF [16384]

Any suggestion?

Thanks,
Yanqing

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