> From: Andrew Cooper [mailto:andrew.coop...@citrix.com] > Sent: Friday, January 5, 2018 4:21 AM > > DMA-ing to the stack is generally considered bad practice. In this case, if a > timeout occurs because of a sluggish device which is processing the request, > the completion notification will corrupt the stack of a subsequent deeper > call > tree. > > Place the poll_slot in a percpu area and DMA to that instead. > > Note: This change does not address other issues with the current > implementation, such as once a timeout has been suffered, subsequent > completions can't be correlated with their requests. > > Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>
Acked-by: Kevin Tian <kevin.t...@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
