[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [patch 00/37] cpu/hotplug, x86: Reworked parallel CPU bringup
On Tue, Apr 18 2023 at 08:58, Thomas Gleixner wrote: > On Mon, Apr 17 2023 at 19:40, Paul Menzel wrote: >> Am 17.04.23 um 16:48 schrieb Thomas Gleixner: >> >>> On Mon, Apr 17 2023 at 13:19, Paul Menzel wrote: >>>> Am 15.04.23 um 01:44 schrieb Thomas Gleixner: >>>> [ 0.258193] smpboot: CPU0: AMD A6-6400K APU with Radeon(tm) HD >>>> Graphics (family: 0x15, model: 0x13, stepping: 0x1) >>>> […] >>>> [ 0.259329] smp: Bringing up secondary CPUs ... >>>> [ 0.259527] x86: Booting SMP configuration: >>>> [ 0.259528] .... node #0, CPUs: #1 >>>> [ 0.261007] After schedule_preempt_disabled >>>> [ 10.260990] CPU1 failed to report alive state >>> >>> Weird. CPU1 fails to come up and report that it has reached the >>> synchronization point. >>> >>> Does it work when you add cpuhp.parallel=off on the kernel command line? >> >> Yes, the ten seconds delay is gone with `cpuhp.parallel=off`. >> >> There was a patch set in the past, that worked on that device. I think >> up to v4 it did *not* work at all and hung [1]. I need some days to >> collect the results again. > > Can you please apply the patch below on top of the pile remove the > command line option again? Bah. That patch does not make any sense at all. Not enough coffee. Can you please provide the output of cpuid? Thanks, tglx
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