On (Wed) 01 Feb 2017 [00:02:27], Omar Sandoval wrote: > From: Omar Sandoval <[email protected]> > > put_chars() stuffs the buffer it gets into an sg, but that buffer may be > on the stack. This breaks with CONFIG_VMAP_STACK=y (for me, it > manifested as printks getting turned into NUL bytes).
Seems reasonable. I wonder since all implementations of hvc do a memcpy, if we can abstract it - but that'll need some work. Reviewed-by: Amit Shah <[email protected]> Michael, please add to the virtio queue. Amit
