[ofa-general] Trouble with IPoIB stack ?

[Eli Cohen]

Does your system respond to ping (over the Eth interface)?

It appears like you have a memory leak. Can you send more output and
also send more details how to reproduce this?

Thanks.

On Tue, 2008-06-10 at 15:32 +0200, Bart Van Assche wrote:
> Hello,
> 
> While running a stress test of Linux' iSCSI initiator I noticed that
> the test ran fine over an Ethernet network but that strange memory
> allocation problems were reported after I switched from Ethernet to
> IPoIB. A few minutes later the whole system froze. Anyone any hints on
> how I can pinpoint the cause of this issue ?
> 
> >From the kernel messages:
> 
> ...
> [  552.238283] scsi_wq_25: page allocation failure. order:0, mode:0x20
> [  551.878249] scsi_wq_39: page allocation failure. order:0, mode:0x20
> ...
> [  553.369853] Call Trace:
> [  551.878264] Pid: 7860, comm: scsi_wq_39 Not tainted 2.6.25.6 #3
> [  552.958273] Pid: 7761, comm: scsi_wq_36 Not tainted 2.6.25.6 #3
> [  553.369866]  [__alloc_pages+0x2e8/0x3d0] __alloc_pages+0x2e8/0x3d0
> [  552.418332]  [__alloc_pages+0x2e8/0x3d0] __alloc_pages+0x2e8/0x3d0
> [  553.369875]  [ib_ipoib:dev_queue_xmit+0xed/0xb410] dev_queue_xmit+0xed/0x380
> [  552.418343]  [new_slab+0x22d/0x2b0] new_slab+0x22d/0x2b0
> [  552.418349]  [__slab_alloc+0x1f5/0x4c0] __slab_alloc+0x1f5/0x4c0
> [  553.369894]  [new_slab+0x22d/0x2b0] new_slab+0x22d/0x2b0
> [  552.778357] Pid: 7306, comm: scsi_wq_23 Not tainted 2.6.25.6 #3
> ...
> 
> See also http://bugzilla.kernel.org/show_bug.cgi?id=10890.
> 
> Bart.
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