kernel: rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.

kernel: rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.

[Alexey Shvetsov]

Hi all!
Sometimes after srp initiator tryed to relogin to srpt in mainline 
kernel i get the following error. After that no one can create new 
seesion to srp target

Apr 18 13:04:01 store kernel: Received SRP_LOGIN_REQ with i_port_id 
0x0:0x1e0bffff4c6dd9, t_port_id 0x1e0bffff4c7d38:0x1e0bffff4c7d38 and 
it_iu_len 260 on port 1 (guid=0xfe80000000000000:0x1e0bffff4c7d39)
Apr 18 13:04:01 store kernel: mlx4_core 0000:4b:00.0: command 0x19 
failed: fw status = 0x9
Apr 18 13:04:01 store kernel: rejected SRP_LOGIN_REQ because creating a 
new RDMA channel failed.

-- 
Best Regards,
Alexey 'Alexxy' Shvetsov
Petersburg Nuclear Physics Institute, Russia
Department of Molecular and Radiation Biophysics
Gentoo Team Ru
Gentoo Linux Dev
mailto:alexxyum-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
mailto:alexxy-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org
mailto:alexxy-heEE5zn7HfaV8fSEjHp0FA@public.gmane.org
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Re: kernel: rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.

[Roland Dreier]

On Wed, Apr 18, 2012 at 2:07 AM, Alexey Shvetsov <alexxy-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org> wrote:
> Apr 18 13:04:01 store kernel: mlx4_core 0000:4b:00.0: command 0x19 failed: fw status = 0x9

status 0x9 is:

        /* Resource is not in the appropriate state or ownership: */
        CMD_STAT_BAD_RES_STATE  = 0x09,

Bart, I seem to remember you had tracked this down to a bug in the SRPT code?

 - R.
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Re: kernel: rejected SRP_LOGIN_REQ because creating a new RDMA channel failed.

[Bart Van Assche]

On 04/18/12 20:21, Roland Dreier wrote:

> On Wed, Apr 18, 2012 at 2:07 AM, Alexey Shvetsov <alexxy-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org> wrote:
>> Apr 18 13:04:01 store kernel: mlx4_core 0000:4b:00.0: command 0x19 failed: fw status = 0x9
> 
> status 0x9 is:
> 
>         /* Resource is not in the appropriate state or ownership: */
>         CMD_STAT_BAD_RES_STATE  = 0x09,
> 
> Bart, I seem to remember you had tracked this down to a bug in the SRPT code?


ib_destroy_cm_id() must be invoked before srpt_destroy_ch_ib() otherwise
srpt_ch_qp_err() can get invoked after a QP has already been freed and
reused. The patch that fixes this issue for the SCST version of ib_srpt
can be found here:
http://scst.svn.sourceforge.net/viewvc/scst?view=revision&revision=4139.

Bart.
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