在 2018年10月02日 19:40, Borislav Petkov 写道: > On Sun, Sep 30, 2018 at 11:10:29AM +0800, Lianbo Jiang wrote: >> When SME is enabled on AMD machine, it also needs to support kdump. Because > > Ok, I've cleaned them up heavily and pushed them here: > > https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git, branch > rc6+0-sme-kdump > > However, testing on my zen box doesn't go as planned. And this is even before > your patches. > > I load the kdump kernel with kexec-tools from the git-repo + the patch you > mention: > > # ~/bpetkov/bin/sbin/kexec -p /boot/vmlinuz-4.19.0-rc6+ --initrd > /boot/initrd-4.19.0-rc6+ > --command-line="root=/dev/mapper/ubuntu--010236012132--vg-leap15 > splash=silent showopts console=ttyS5,115200 console=tty0 debug > ignore_loglevel log_buf_len=16M 1 irqpoll maxcpus=1 reset_devices vga=normal" > > verify that it has been loaded: > > # grep . /sys/kernel/kexec_* > /sys/kernel/kexec_crash_loaded:1 > /sys/kernel/kexec_crash_size:268435456 > /sys/kernel/kexec_loaded:0 > > and then trigger the panic: > > # echo c > /proc/sysrq-trigger > > and I see the panic happening in the serial console but then nothing. > The box resets instead. > > So something's still broken. >
Sorry for my late reply because of a holiday. I noticed that your test was based on [patch v8 RESEND 4/4], could you please test it based on [patch v9 4/4]? Because the [patch v8 RESEND 4/4] had a compile error, and that had been fixed in [patch v9 4/4]. Or i improve patch log and comment in the code for [patch v9 4/4] based on your comments, and post the series again, also provide my test result about the series. Do you think about? Thanks. Lianbo > Trying the kexec -l/kexec -e game works - the second kernel gets kexeced > properly. > _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec
