[openib-general] why sdp connections cost so much memory

[Michael S. Tsirkin]

Quoting r. zhu shi song <zhushisongzhu at yahoo.com>:
> --- "Michael S. Tsirkin" <mst at mellanox.co.il> wrote:
> 
> > Quoting r. zhu shi song <zhushisongzhu at yahoo.com>:
> > > (3) one time linux kernel on the client crashed. I
> > > copy the output from the screen.
> > > Process sdp (pid:4059, threadinfo 0000010036384000
> > > task 000001003ea10030)
> > > Call
> > >
> > Trace:<ffffffffa0205011>{:ib_sdp:sdp_destroy_workto}
> > > <ffffffffa02041ae> {:ib_sdp:sdp_destroy_qp+77}
> > >
> >
> <ffffffffa02044da>{:ib_sdp:sdp_destruct+279}<ffffffff802a42d2>{sk_free+28}
> > >
> >
> <ffffffff80146e1e>{worker_thread+419}<ffffffff801333c8>{default_wake_function+0}
> > >
> >
> <ffffffff801333c8>{default_wake_function+0}<ffffffff8014aabc>{keventd_create_kthread+0}
> > >
> >
> <ffffffff80146c76>{worker_thread+0}<ffffffff8014aabc>{keventd_create_kthread+0}
> > >
> >
> <ffffffff8014aa93>{kthread+200}<ffffffff80110e17>{child_rip+8}
> > >
> >
> <ffffffff8014aabc>{keventd_create_kthread+0}<ffffffff8014a9cb>{kthread+0}<ffffffff80110e0f>{child_rip+0}
> > > Code:8b 40 04 41 39 c6 89 44 24 0c 7d 3b 45 31 ff
> > 45
> > > 31 ed 4c 89
> > >
> >
> RIP:<ffffffffa0208437>{:ib_sdp:sdp_recv_completion+127}RSP<0000010036385dc8>
> > > CR2:0000000000000004
> > > <0>kernel panic-not syncing:Oops
> > > 
> > > zhu
> > 
> > Hmm, the stack dump does not match my sources. Is
> > this OFED rc1?
> > Could you send me the sdp_main.o and sdp_main.c
> > files from your system please?

---

> Subject: Re: why sdp connections cost so much memory
> 
> please see the attachment.
> zhu

Ugh, so its crashing inside sdp_bcopy ...

By the way, could you please re-test with OFED rc2?
We've solved a couple of bugs there ...

If this still crashes, could you please post the whole
sdp directory, with .o and .c files?

Thanks,

-- 
MST