Bug #23813
System time occasionally jumps ahead by a second when using IP-UCD
Status:
Assigned
Priority:
Normal
Assignee:
Category:
IPUCD library for VxWorks
Target version:
-
Start date:
12/30/2019
Due date:
% Done:
0%
Estimated time:
Description
On the TLG front-end, we see timestamps occasionally gain a second. We "fixed" this issue by periodically sync-ing with the timeserver. The real solution, however, is to fix the driver.
Related issues
History
#1 Updated by Richard Neswold 7 months ago
I released a beta version of the driver: libiptrig-3.3.out. This release has two changes:
- I removed the
-fvolatilecompiler option. Bobby found that this option was broken: https://gcc.gnu.org/gcc-3.4/changes.html#3.4.5 - I forced the optimization level to 0 so the compiler won't re-order instructions.
There are other things to investigate but these two changes could fix the way the hardware is accessed.
#2 Updated by Richard Neswold 7 months ago
- Related to Support #23806: TLG Front end clock drift problems added