Messages in this thread | | | From | Junichi Nomura <> | Subject | Re: [PATCH v2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel | Date | Thu, 4 Apr 2019 01:23:26 +0000 |
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Hi Dave and Chao,
On 4/3/19 6:02 PM, Chao Fan wrote: > On Wed, Apr 03, 2019 at 04:23:06PM +0800, Chao Fan wrote: >> On Wed, Apr 03, 2019 at 04:09:16PM +0800, Dave Young wrote: >>> Fix 3. need more debugging, have you or Junichi run tests on more real >>> hardware, maybe it is easier to reproduce on real hardware, I'm glad to >>> help to try test patch or provide any help. >> >> I am still testing in real hardware. > > Hi Dave, > > I find a Fujitsu Desktop PC to test it. > Without this PATCH, it failed to kexec and kdump. > With this PATCH, it succeed to kexec. > But failed to kdump. From the log, I think it didn't jump to the second > kernel, just reboot after panic. I have not figured out what's the > problem, but it seems not caused by this PATCH. > So I still think this PATCH works for the Fujitsu Desktop PC. > > As for your issue, I think there may be some problems related to specified > hardware. Are you using a Lenovo laptop? > > And I am not sure how Nomura tested it.
I've tested 3 different models of EFI-booted baremetal servers with both normal kexec and panic kexec. So far as I've tried Linus's v5.1-rc3, the problem always reproduced without the patch and disappears with the patch.
-- Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.
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