Re: [PATCH 1/3] PCI: hv: Allocate physically contiguous hypercall params buffer

From: Dan Carpenter
Date: Mon Jan 21 2019 - 08:20:16 EST


On Fri, Jan 18, 2019 at 02:17:16AM +0530, Ajay Kaher wrote:
> hv_do_hypercall() assumes that we pass a segment from a physically
> contiguous buffer. A buffer allocated on the stack may not work if
> CONFIG_VMAP_STACK=y is set.
>
> Use kmalloc() to allocate this buffer.
>

Since you're going to need to resend this anyway, can you add in the
commit message what this looks like from a user perspective? Presumably
it's an occasional crash?

regards,
dan carpenter