On Wed, Oct 30, 2024 at 12:02:01AM +0000, Mark Brown wrote: > One of the things that fp-stress does to stress the floating point > context switching is send signals to the test threads it spawns. > Currently we do this once per second but as suggested by Mark Rutland if > we increase this we can improve the chances of triggering any issues > with context switching the signal handling code. Do a quick change to > increase the rate of signal delivery, trying to avoid excessive impact > on emulated platforms, and a further change to mitigate the impact that > this creates during startup. > > Signed-off-by: Mark Brown <broonie@xxxxxxxxxx> > --- > Changes in v2: > - Minor clarifications in commit message and log output. > - Link to v1: https://lore.kernel.org/r/20241029-arm64-fp-stress-interval-v1-0-db540abf6dd5@xxxxxxxxxx > > --- > Mark Brown (2): > kselftest/arm64: Increase frequency of signal delivery in fp-stress > kselftest/arm64: Poll less often while waiting for fp-stress children With these changes, I was easily able to reproduce the SVCR=0 bug so: Acked-by: Will Deacon <will@xxxxxxxxxx> for both. Will
