Messages in this thread | | | From | Huacai Chen <> | Date | Wed, 16 Sep 2020 02:19:27 -0400 | Subject | Re: [RFC PATCH v3] PCI/portdrv: Only disable Bus Master on kexec reboot and connected PCI devices |
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Hi, Bjorn,
On Tue, Sep 15, 2020 at 4:38 PM Bjorn Helgaas <helgaas@kernel.org> wrote: > > On Tue, Sep 15, 2020 at 09:36:13AM +0800, Huacai Chen wrote: > > Hi, Tiezhu, > > > > On Mon, Sep 14, 2020 at 7:25 PM Tiezhu Yang <yangtiezhu@loongson.cn> wrote: > > > > > > On 09/14/2020 05:46 PM, Huacai Chen wrote: > > > > Hi, Tiezhu, > > > > > > > > On Mon, Sep 14, 2020 at 5:30 PM Tiezhu Yang <yangtiezhu@loongson.cn> wrote: > > > >> On 09/14/2020 04:52 PM, Huacai Chen wrote: > > > >>> Hi, Tiezhu, > > > >>> > > > >>> How do you test kexec? kexec -e or systemctl kexec? Or both? > > > >> kexec -l vmlinux --append="root=/dev/sda2 console=ttyS0,115200" > > > >> kexec -e > > > > So you haven't tested "systemctl kexec"? > > > > > > Yes, the distro I used is Loongnix which has not kexec service now. > > > Is there any problem when use systemctl kexec? If you have more details, > > > please let me know. > > If you use systemctl kexec, the first part of kexec is the same as a > > normal reboot/poweroff. So, there is no reason that reboot/poweroff is > > bad but kexec is good. > > Then, Bjorn, what is the best solution now? It seems like my first > > version is OK (commit messages should be improved, of course). > > Sorry, there are too many conversations going on for me to keep track > of what first version you're referring to. Please include a specific > lore.kernel.org URL. My first version means this one: https://patchwork.kernel.org/patch/11695929/
Thanks, Huacai > > Bjorn
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