On Wed, 2017-03-15 at 18:56 +0900, AKASHI Takahiro wrote: > This patch series adds kdump support on arm64. > > To load a crash-dump kernel to the systems, a series of patches to > kexec-tools[1] are also needed. Please use the latest one, v6 [2]. > For your convinience, you can pick them up from: > https://git.linaro.org/people/takahiro.akashi/linux-aarch64.git arm64/kdump > https://git.linaro.org/people/takahiro.akashi/kexec-tools.git arm64/kdump > > To examine vmcore (/proc/vmcore) on a crash-dump kernel, you can use > - crash utility (v7.1.8 or later) [3] > > I tested this patchset on fast model and hikey.
Is this one going to be be my fault too? [ 38.947305] SMP: stopping secondary CPUs [ 38.951291] Starting crashdump kernel... [ 38.955207] ------------[ cut here ]------------ [ 38.959818] WARNING: CPU: 0 PID: 312 at arch/arm64/kernel/machine_kexec.c:169 machine_kexec+0x220/0x298 That's the cpus_are_stuck_in_kernel() || num_online_cpus() one. Again, v32 applied to a 4.9 kernel. With the stray __init removed this time ;) Taking secondary CPUs down for a normal kexec does work via PSCI. I'll see if I can enable enough hardware support to let me test a newer kernel...
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