On 2020-12-30 14:09:17 [+0300], Sergei Poselenov wrote: > Hello, Hi, > We applied patch-5.4.47-rt28.patch to NXP 5.4.47-2.2.0 release ARM64 > kernel running on IMX8M NANO chip, and enabled CONFIG_PRREMPT_RT. We > are observing the following crash (below), on a system running an > application that communicates with some SPI device. Obviously, the > system doesn't crash without the patch applied. > > Any thoughts on the reason of the failure would be appreciated. How would we start debugging the problem? Can you give v5.10 a try v5.10 and/or enable SLUB_DEBUG? > Thanks! > > Regards, > Sergei Poselenov, > Emcraft Systems Sebastian
