[PATCH 1/3] PCI: hv: Allocate physically contiguous hypercall params buffer
Dan Carpenter
dan.carpenter at oracle.com
Mon Jan 21 13:19:42 UTC 2019
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
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