Hello Gabriel, On 26/07/2022 10:03, gabriel.moy...@dlr.de wrote:
The patch added a new test case (PPSEventEarlyReturns) for increasing the test coverage. The test case checks whether the function pps_event() (in file kern_tc.c) returns early. According to the result you shared, the test is failing in lines 115 and 119, which means that there is no early return of the function pps_event() due to saving the timecounter in the pps_state object (line 2225 of kern_tc.c). My guess is that saving the timecounter is happening in the previous call of pps_event() (in line 109 of the test case). Unfortunately I cannot understand why this is failing in intermittently manner (apparently just in QEMU).
the issue should be already fixed. It was an SMP-specific problem since here we have two timehands.
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