On Sat, Jun 16, 2012 at 12:22:53AM +0200, Lluis Batlle i Rossell wrote: > Reusing most of the code from lw,ld,sw,sd emulation, > I add the emulation for lwc1,ldc1,swc1,sdc1. > > This avoids the direct SIGBUS sent to userspace processes that have > misaligned memory accesses. > > I've tested the change in Loongson2F, with an own test program, and > WebKit 1.4.0, as both were killed by sigbus without this patch. A misaligned FPU access is a strong indication for broken, non-portable software. which means you're likely trying to fix the wrong issue. It's quite intentional that there is no unaligned handling for the FPU in the kernel - and afaics there isn't for any other MIPS UNIX. Ralf
