| Message ID | 20201226033557.116251-1-chenzhou10@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | arm64: mm: fix kdump broken with ZONE_DMA reintroduced | expand |
On Sat, Dec 26, 2020 at 11:35:55AM +0800, Chen Zhou wrote: > If the memory reserved for crash dump kernel falled in ZONE_DMA32, > the devices in crash dump kernel need to use ZONE_DMA will alloc fail. > > Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is > enabled, otherwise, reserving in ZONE_DMA32. > > Patch 1 updates the comments about the ZONE_DMA. > Patch 2 fix kdump broken. > > Chen Zhou (2): > arm64: mm: update the comments about ZONE_DMA > arm64: mm: fix kdump broken with ZONE_DMA reintroduced Please can you repost this if it is still needed after the changes that landed in -rc4? Will
On Wed, Jan 20, 2021 at 12:40:55PM +0000, Will Deacon wrote: > On Sat, Dec 26, 2020 at 11:35:55AM +0800, Chen Zhou wrote: > > If the memory reserved for crash dump kernel falled in ZONE_DMA32, > > the devices in crash dump kernel need to use ZONE_DMA will alloc fail. > > > > Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is > > enabled, otherwise, reserving in ZONE_DMA32. > > > > Patch 1 updates the comments about the ZONE_DMA. > > Patch 2 fix kdump broken. > > > > Chen Zhou (2): > > arm64: mm: update the comments about ZONE_DMA > > arm64: mm: fix kdump broken with ZONE_DMA reintroduced > > Please can you repost this if it is still needed after the changes that > landed in -rc4? I don't think this series is needed anymore but I'll let Chen confirm.
Hi Will, Catalin, On 2021/1/20 21:07, Catalin Marinas wrote: > On Wed, Jan 20, 2021 at 12:40:55PM +0000, Will Deacon wrote: >> On Sat, Dec 26, 2020 at 11:35:55AM +0800, Chen Zhou wrote: >>> If the memory reserved for crash dump kernel falled in ZONE_DMA32, >>> the devices in crash dump kernel need to use ZONE_DMA will alloc fail. >>> >>> Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is >>> enabled, otherwise, reserving in ZONE_DMA32. >>> >>> Patch 1 updates the comments about the ZONE_DMA. >>> Patch 2 fix kdump broken. >>> >>> Chen Zhou (2): >>> arm64: mm: update the comments about ZONE_DMA >>> arm64: mm: fix kdump broken with ZONE_DMA reintroduced >> Please can you repost this if it is still needed after the changes that >> landed in -rc4? > I don't think this series is needed anymore but I'll let Chen confirm. Yes, we don't need this series, Catalin has solved the issue i mentioned. I will repost the series "support reserving crashkernel above 4G on arm64 kdump" based on the latest code. Thanks, Chen Zhou
If the memory reserved for crash dump kernel falled in ZONE_DMA32, the devices in crash dump kernel need to use ZONE_DMA will alloc fail. Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is enabled, otherwise, reserving in ZONE_DMA32. Patch 1 updates the comments about the ZONE_DMA. Patch 2 fix kdump broken. Chen Zhou (2): arm64: mm: update the comments about ZONE_DMA arm64: mm: fix kdump broken with ZONE_DMA reintroduced arch/arm64/mm/init.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-)