On Tue, Mar 22, 2022 at 08:58:20AM -0700, Guenter Roeck wrote: > This patch (or a later version of it) made it into mainline and causes a > large number of qemu boot test failures for various architectures (arm, > m68k, microblaze, sparc32, xtensa are the ones I observed). Common > denominator is that boot hangs at "Saving random seed:". A sample bisect > log is attached. Reverting this patch fixes the problem. Just as a datapoint for debugging at least qemu/arm is getting coverage in CI systems (KernelCI is covering a bunch of different emulated machines and LKFT has at least one configuration as well, clang's tests have some wider architecture coverage as well I think) and they don't seem to be seeing any problems - there's some other variable in there. For example current basic boot tests for KernelCI are at: https://linux.kernelci.org/test/job/mainline/branch/master/kernel/v5.17-1442-gb47d5a4f6b8d/plan/baseline/ for mainline and -next has: https://linux.kernelci.org/test/job/next/branch/master/kernel/next-20220322/plan/baseline/ These are with a buildroot based rootfs that has a "Saving random seed: " step in the boot process FWIW.
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