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Date:   Fri, 7 Jun 2019 19:42:11 +0200
From:   Borislav Petkov <bp@alien8.de>
To:     lijiang <lijiang@redhat.com>
Cc:     linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
        tglx@linutronix.de, mingo@redhat.com, akpm@linux-foundation.org,
        dave.hansen@linux.intel.com, luto@kernel.org, peterz@infradead.org,
        x86@kernel.org, hpa@zytor.com, dyoung@redhat.com, bhe@redhat.com,
        Thomas.Lendacky@amd.com
Subject: Re: [PATCH 0/3 v11] add reserved e820 ranges to the kdump kernel
 e820 table
Message-ID: <20190607174211.GN20269@zn.tnic>
References: <20190423013007.17838-1-lijiang@redhat.com>
 <12847a03-3226-0b29-97b5-04d404410147@redhat.com>
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On Tue, May 28, 2019 at 03:30:21PM +0800, lijiang wrote:
> Hi, Boris and Thomas
> 
> Could you give me any suggestions about this patch series? Other reviewers?

So I'm testing this on a box with SME enabled but after loading the
crash kernel, it freezes instead of rebooting. My cmdline is:

 kexec -s -p /boot/vmlinuz-5.2.0-rc3+ --initrd=/boot/initrd.img-5.2.0-rc3+ --command-line="maxcpus=1 root=/dev/sda5 ro debug ignore_loglevel log_buf_len=16M no_console_suspend net.ifnames=0 systemd.log_target=null mem_encrypt=on kvm_amd.sev=1 nr_cpus=1 irqpoll reset_devices vga=normal LANG=en_US.UTF-8 earlyprintk=serial cgroup_disable=memory mce=off numa=off udev.children-max=2 panic=10 rootflags=nofail acpi_no_memhotplug transparent_hugepage=never disable_cpu_apicid=0"

and the reserved range is:

[    0.000000] Reserving 256MB of memory at 3392MB for crashkernel (System RAM: 16271MB)

I'm wondering if it is related to

https://lkml.kernel.org/r/20190604134952.GC26891@MiWiFi-R3L-srv

Thx.

-- 
Regards/Gruss,
    Boris.

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