On 1/15/19 4:00 AM, Eugeniy Paltsev wrote: >>> -#ifdef PREALLOC_NOT_AVAIL >>> - prefetchw [r3, 64] ;Prefetch the next write location >>> -#else >>> - prealloc [r3, 64] >>> -#endif >>> + PREALLOC_INSTR([r3, 64]) ;Prefetch the next write location >> These are not solving the issue - I'd break this up and move these bits to your >> next patch. > Actually these are solving another issue - current implementation may call > 'prealloc' instruction for L1 cache line which doesn't fully belongs to > memeset area in case of 128B L1 D$ line length. As the 'prealloc' fill cache line > with zeros this leads to data corruption. > > So I would better keep these changes in this 'fix' patch. Fair enough. Although technically it is different bug which we haven't actually hit, found by code review. > BTW, I've forgot again to add Cc: stable@xxxxxxxxxxxxxxx, could you add it for me, > when applying patch? > Thanks. Yes, I did that already ! -Vineet _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
