On 04/02/2018 02:56 PM, Sagi Maimon wrote: > Hi all, > I am working with: Powerpc e300 SOC. > I am using: xenomai-2.6.4 version
The key information is: which I-pipe 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. Reading the discussion you mentioned, it says that the bug(s) mentioned have been fixed in 2.6.2.1, so this is unlikely to apply to 2.6.4. > 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? The e300 core may also issue alignment exceptions for misaligned single/multiple integer stores, or dcbz insn to write-through or cache-inhibited memory. > Have this problem fixed in recent xenomai/ipipe versions? No fix related to this since ages. > Where can I find a list of fixes made in any xenomai/ipipe version? > Only in the git commit logs for the related I-pipe and Xenomai source trees. -- Philippe. _______________________________________________ Xenomai mailing list [email protected] https://xenomai.org/mailman/listinfo/xenomai
