On Thu, 2006-02-23 at 15:42 +0100, Torbjorn Granlund wrote: > I recently committed several GMP assembly functions for powerpc32 > using Altivec registers and instructions. > > I also reinstalled my system (a Pegasos2) recently, from an obsolete > snapshot I got from somebody on the net, to a much less obsolete > system. > > With the new assembly code *and* with the new GNU/Linux installation, > the system fails intermittently in GMP's make check. I don't know how > to debug such an intermittent failure. > > The same GMP code works correctly on Mac OS X. > > Debugging such an intermittent problem is close to impossible. > > Do you know if the Linux kernel correctly handles Altivec registers > during context switch? Does it require setting the VRSAVE special > register, BTW? (I set it properly, since Mac OS X needs it, and > setting it shouldn't hurt.) > > (The kernel on the system identifies itself as 2.6.12.)
It should but there have been bugs in the past, notably with signals. You may want to try with a more recent kernel. Ben. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
