Re: RFC: remove set_fs for m68k

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Am 16.07.2021 um 14:03 schrieb Michael Schmitz:
Hi Christoph,

On 15/07/21 7:26 am, Michael Schmitz wrote:
I've got a vague recollection that I've seen weird crashes in the past
related to temperature extremes (we've had a few unusually cold days
in our parts just now), so I've gone back to a kernel from the switch
stack / refactoring exit tests (which ran the stress tests fine
earlier) to rule that one out. Looking good so far, so I begin to
wonder whether we need to introduce get_fc() and use that to restore
the original sfc/dfc instead of assuming USER_DATA is always correct?

No crashes with the known good kernel after over a day of stress testing
- I'll try Andreas' patch once the current test run has completed.

One thing I noticed with either your final or your v2 patch series - as
far as the tests ran at all, run times were 30% increased. That's a lot

With Andreas' patch applied, the run time increase is now less severe (11-13%). I'll repeat that a few more times but it's looking a lot better so far. No instruction format errors seen anymore.

Cheers,

	Michael






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