RE: [Infiniband-access_layer] ib_reg_mem fails after a few times

[Tziporet K. <tzi...@me...>]

Hi,

The reason you get this error is not related to any spinlocks.
For all privileged verbs the THH driver check that process is not in
interrupts context (since we put the process to sleep and this is =
forbidden
in interrupts).=20
We use the function in_interrupt() do decide if the process is in =
interrupt
context or not. Note that this function is also TRUE for tasklet.

So it seems you are calling memory registration in tasklet or =
interrupt.
What you can do is use this function before calling to ib_reg_mem() and =
see
in what context the process is.

Tziporet

-----Original Message-----
From: er...@te...
[mailto:er...@te...]
Sent: Monday, May 31, 2004 8:54 AM
To: inf...@li...
Subject: [Infiniband-access_layer] ib_reg_mem fails after a few times


Hi,

I'm using ib_reg_mem in order to register memory. It works fine 18 =
times. On
the
next time, I get the following errors:
May 30 18:14:37 psl-178 kernel:  TVPD(1): THH_hob_register_mr: NOT IN =
TASK
CONTEXT)
May 30 18:14:37 psl-178 kernel:  TVPD(1): kvp_mlx_mrw.c[493]:
kvp_mlnx_register_mr: Could not register the MR, reason: (-255: HH_ERR)
May 30 18:14:37 psl-178 kernel: srpl_queue_req() !ERROR!: ib_reg_mem()
failed!,
status =3D 0x2a

This call is done in a synchronous context & I'm not holding any =
spinlocks.
Also, I'm deregistering the memory successfully.



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