On Tue, Feb 25, 2025 at 05:19:29PM +0200, Alexander Korotkov wrote: > It seems that I managed to reproduce the issue on my Raspberry PI 4. > After running our test suite in a loop for 2 days I found one timeout.
Hmm. It's surprising to not see a higher occurence. My buildfarm host has caught that on its first run after the patch, for two different animals which are both on the same machine. > One way or another, we need protection against this situation any way. > The updated patch is attached. Now, after acquiring ReservedPtr it > waits till OldPageRqstPtr gets initialized. Additionally I've to > implement more accurate calculation of OldPageRqstPtr. I run tests > with new patch on my Raspberry in a loop. Let's see how it goes. Perhaps you'd prefer that I do more tests with your patch? This is time-consuming for you. This is not a review of the internals of the patch, and I cannot give you access to the host, but if my stuff is the only place where we have a good reproducibility of the issue, I'm OK to grab some time and run a couple of checks to avoid again a freeze of the buildfarm. -- Michael
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