Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread chenzhou
On 2020/9/4 12:16, Dave Young wrote: > On 09/04/20 at 12:02pm, chenzhou wrote: >> >> On 2020/9/4 11:10, Dave Young wrote: >>> On 09/04/20 at 11:04am, Dave Young wrote: On 09/03/20 at 07:26pm, chenzhou wrote: > Hi Catalin, > > > On 2020/9/3 1:09, Catalin Marinas wrote: >>

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread Dave Young
On 09/04/20 at 12:02pm, chenzhou wrote: > > > On 2020/9/4 11:10, Dave Young wrote: > > On 09/04/20 at 11:04am, Dave Young wrote: > >> On 09/03/20 at 07:26pm, chenzhou wrote: > >>> Hi Catalin, > >>> > >>> > >>> On 2020/9/3 1:09, Catalin Marinas wrote: > On Sat, Aug 01, 2020 at 09:08:54PM +080

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread chenzhou
On 2020/9/4 11:10, Dave Young wrote: > On 09/04/20 at 11:04am, Dave Young wrote: >> On 09/03/20 at 07:26pm, chenzhou wrote: >>> Hi Catalin, >>> >>> >>> On 2020/9/3 1:09, Catalin Marinas wrote: On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: > There are following issues in arm

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread Dave Young
On 09/04/20 at 11:04am, Dave Young wrote: > On 09/03/20 at 07:26pm, chenzhou wrote: > > Hi Catalin, > > > > > > On 2020/9/3 1:09, Catalin Marinas wrote: > > > On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: > > >> There are following issues in arm64 kdump: > > >> 1. We use crashkernel=

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread Dave Young
On 09/03/20 at 07:26pm, chenzhou wrote: > Hi Catalin, > > > On 2020/9/3 1:09, Catalin Marinas wrote: > > On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: > >> There are following issues in arm64 kdump: > >> 1. We use crashkernel=X to reserve crashkernel below 4G, which > >> will fail wh

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread chenzhou
Hi Catalin, On 2020/9/3 1:09, Catalin Marinas wrote: > On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: >> There are following issues in arm64 kdump: >> 1. We use crashkernel=X to reserve crashkernel below 4G, which >> will fail when there is no enough low memory. >> 2. If reserving cra

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-03 Thread chenzhou
On 2020/9/3 19:26, chenzhou wrote: > Hi Catalin, > > > On 2020/9/3 1:09, Catalin Marinas wrote: >> On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: >>> There are following issues in arm64 kdump: >>> 1. We use crashkernel=X to reserve crashkernel below 4G, which >>> will fail when there

Re: [PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-09-02 Thread Catalin Marinas
On Sat, Aug 01, 2020 at 09:08:54PM +0800, Chen Zhou wrote: > There are following issues in arm64 kdump: > 1. We use crashkernel=X to reserve crashkernel below 4G, which > will fail when there is no enough low memory. > 2. If reserving crashkernel above 4G, in this case, crash dump > kernel will boo

[PATCH v11 3/5] arm64: kdump: reimplement crashkernel=X

2020-08-01 Thread Chen Zhou
There are following issues in arm64 kdump: 1. We use crashkernel=X to reserve crashkernel below 4G, which will fail when there is no enough low memory. 2. If reserving crashkernel above 4G, in this case, crash dump kernel will boot failure because there is no low memory available for allocation. 3.