On Mon, Apr 02, 2018 at 12:56:39PM +0000, Sagi Maimon wrote: > Hi all, > I am working with: Powerpc e300 SOC. > I am using: xenomai-2.6.4 version > > I am experiencing this exception on my Linux : > Unrecoverable FP Unavailable Exception 801 at c0003858 > Oops: Unrecoverable FP Unavailable Exception, sig: 6 [#1] > > This happens during "alignment exception" (600) > > I found this link: > https://www.mail-archive.com/[email protected]&q=subject:%22Re%5C%3A+%5C%5BXenomai%5C%5D+FPU+problems+in+Xenomai+2.4.x%22&o=newest&f=1 > > As I understand heavy use of FPU by Linux application with the xenomai can > Couse this problem. > I have built a Linux application that causes many "alignment exceptions", but > I don't get any Unrecoverable FP Unavailable Exceptions. > > Does anyone familiar with this error? > Have this problem fixed in recent xenomai/ipipe versions? > Where can I find a list of fixes made in any xenomai/ipipe version?
As far as I recall (it has been a few years), the powerpc does not allow unalligned 64 bit floating point accesses. So your data better be aligned properly. -- Len Sorensen _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
