Re: [PATCH 1/2] RDMA: RPCRDMA_MAX_DATA_SEGS cause i686 stack to blow.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu,  3 Nov 2011 14:52:38 -0400, Steve Dickson wrote:

 steved> Commit 2773395b3 increased RPCRDMA_MAX_DATA_SEGS from 8
 steved> to 64 which significantly increases throughput with the
 steved> RDMA transport.

 steved> Unfortunately making RPCRDMA_MAX_DATA_SEGS that large blows
 steved> the stack on i686 builds during compilation. So the
 steved> RPCRDMA_MAX_PHYSREG_DATA_SEGS is used to allocated data on
 steved> the stack.

How is it supposed to work if you "advertise" 256K r/wsize (64 * 4k)
but only post enough buffers to deal with 64K worth of data?

max

--
To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Filesystem Development]     [Linux USB Development]     [Linux Media Development]     [Video for Linux]     [Linux NILFS]     [Linux Audio Users]     [Yosemite Info]     [Linux SCSI]

  Powered by Linux