Thread (16 messages) flat view 16 messages, 4 authors, 2015-09-08

Re: memcpy regression

From: Christophe LEROY <hidden>
Date: 2015-09-04 13:57:46

Le 04/09/2015 15:33, Michal Sojka a écrit :
Dear Christophe,

my MPC5200-based system stopped booting recently. I bisected the problem
to your commit below. If I revert that commit (on top of
807249d3ada1ff28a47c4054ca4edd479421b671 = v4.2-6663-g807249d), my
system boots again.
Do you use mainline code only, or do you have home-made code ?

memcpy() is not supposed to be used on non-cacheable memory.
memcpy_toio() is the function to use when copying to non-cacheble area.

When I submitted the patch, I looked for erroneous use of memcpy() and 
memset().
I found one wrong use of memset() that I changed to memset_io() but I 
didn't find any misuse of memcpy().
But I may have missed one.

Christophe
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help