Re: [PATCH v19 11/13] arm64: kdump: reimplement crashkernel=X

2022-01-12 Thread Leizhen (ThunderTown)
On 2022/1/12 22:45, Dave Kleikamp wrote: > On 12/28/21 7:26AM, Zhen Lei wrote: >> From: 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

Re: [PATCH 1/3] memblock: define functions to set the usable memory range

2022-01-12 Thread Mike Rapoport
On Tue, Jan 11, 2022 at 08:44:41PM +, Frank van der Linden wrote: > On Tue, Jan 11, 2022 at 12:31:58PM +0200, Mike Rapoport wrote: > > > --- a/include/linux/memblock.h > > > +++ b/include/linux/memblock.h > > > @@ -481,6 +481,8 @@ phys_addr_t memblock_reserved_size(void); > > > phys_addr_t

Re: [PATCH v4 0/3] Handle warning of allocation failure on DMA zone w/o managed pages

2022-01-12 Thread john . p . donnelly
On 12/23/21 3:44 AM, Baoquan He wrote: **Problem observed: On x86_64, when crash is triggered and entering into kdump kernel, page allocation failure can always be seen. - DMA: preallocated 128 KiB GFP_KERNEL pool for atomic allocations swapper/0: page

Re: [PATCH v19 11/13] arm64: kdump: reimplement crashkernel=X

2022-01-12 Thread Dave Kleikamp
On 12/28/21 7:26AM, Zhen Lei wrote: From: 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