failing.paths.rpt

[Altera_Forum]

After an apparent successful compile with 0 errors reported and an aocx file created, 

if one looks into the directory with log and rpt files there can be rpt files such as top.failing_paths.rpt, and top.failing_clocks.rpt with info such listed below.  What is the significance of these rpts. Should there be a recompile with different parameters?  If so, how would one set such parameters when aoc is being used to compile the kernels?  Thanks,  Dan..   [poz@nallatech boardtest_ts_sram_sl]$ grep Worst *fail*.rpt top.failing_paths.rpt:Report Timing: Found 5 setup paths (5 violated). Worst case slack is -0.556  top.failing_paths.rpt:Report Timing: Found 5 setup paths (5 violated). Worst case slack is -0.310  top.failing_paths.rpt:Report Timing: Found 5 hold paths (5 violated). Worst case slack is -0.019  top.failing_paths.rpt:Report Timing: Found 5 setup paths (5 violated). Worst case slack is -0.423  top.failing_paths.rpt:Report Timing: Found 5 setup paths (5 violated). Worst case slack is -0.221   top.failing_paths.rpt:Report Timing: Found 5 hold paths (5 violated). Worst case slack is -0.056    Clock domains failing timing +--------+---------------+----------------------------------------------+-----------------------+-----------------+ ; Slack ; End Point TNS ; Clock ; Operating conditions ; Timing analysis ; +--------+---------------+----------------------------------------------+-----------------------+-----------------+ ; -0.556 ; -98.123 ; board_inst|ddr3b_core_usr_clk ; Slow 900mV 100C Model ; Setup ; ; -0.423 ; -60.327 ; board_inst|ddr3b_core_usr_clk ; Slow 900mV 0C Model ; Setup ; ; -0.310 ; -63.934 ; board_inst|pcie|wys~CORE_CLK_OUT ; Slow 900mV 100C Model ; Setup ; ; -0.221 ; -23.398 ; board_inst|pcie|wys~CORE_CLK_OUT ; Slow 900mV 0C Model ; Setup ; ; -0.056 ; -10.906 ; board_inst|kernel_clk_gen|kernel_pll|outclk0 ; Slow 900mV 0C Model ; Hold ; ; -0.019 ; -0.151 ; board_inst|kernel_clk_gen|kernel_pll|outclk0 ; Slow 900mV 100C Model ; Hold ; +--------+---------------+----------------------------------------------+-----------------------+-----------------+

[Altera_Forum]

No need to recompile anything; the kernel will work as it is. I remember seeing a note among the known issues in the changelog of AOC or quartus about these failing paths which said we should disregard them until Altera fixes it, though I cannot find it right now.