Re: [PATCH V6 0/6] RISC-V fixups to work with crash tool
From: Conor.Dooley
Date: Thu Aug 11 2022 - 11:54:41 EST
Hey Xianting,
I still think the commit subjects could be more specific, but
not going to suggest wasting your time respinning for that.
Cosmetically:
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
@Palmer Would you consider at least patches 1-3 of the series
for 6.0?
Thanks,
Conor.
On 11/08/2022 08:41, Xianting Tian wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> I ever sent the patch 1 in the link:
> https://patchwork.kernel.org/project/linux-riscv/patch/20220708073150.352830-3-xianting.tian@xxxxxxxxxxxxxxxxx/
> And patch 2,3 in the link:
> https://patchwork.kernel.org/project/linux-riscv/patch/20220714113300.367854-2-xianting.tian@xxxxxxxxxxxxxxxxx/
> https://patchwork.kernel.org/project/linux-riscv/patch/20220714113300.367854-3-xianting.tian@xxxxxxxxxxxxxxxxx/
>
> This patch set just put these patches together, and with three new patch 4, 5, 6.
> these six patches are the fixups for machine_kexec, kernel mode PC for vmcore
> and improvements for vmcoreinfo, memory layout dump and fixup schedule out issue
> in machine_crash_shutdown().
>
> The main changes in the six patchs as below,
> Patch 1: Fixup use of smp_processor_id() in preemptible context, to cleanup
> the console prints.
> Patch 2: Fixup to get correct kernel mode PC for kernel mode regs for vmcore.
> Patch 3: Fixup schedule out issue in machine_crash_shutdown()
> Patch 4: Add modules to virtual kernel memory layout dump.
> Patch 5: Add VM layout, va bits, ram base to vmcoreinfo, which can simplify
> the development of crash tool as ARM64 already did
> (arch/arm64/kernel/crash_core.c).
> Patch 6: Updates vmcoreinfo.rst for vmcoreinfo export for RISCV64.
>
> With these six patches(patch 2 is must), crash tool can work well to analyze
> a vmcore. The patches for crash tool for RISCV64 is in the link:
> https://lore.kernel.org/linux-riscv/20220801043040.2003264-1-xianting.tian@xxxxxxxxxxxxxxxxx/
>
> ------
> Changes v1 -> v2:
> 1, remove the patch "Add a fast call path of crash_kexec()" from this series
> of patches, as it already applied to riscv git.
> https://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git/commit/?h=for-next&id=3f1901110a89b0e2e13adb2ac8d1a7102879ea98
> 2, add 'Reviewed-by' based on the comments of v1.
> Changes v2 -> v3:
> use "riscv" instead of "riscv64" in patch 5 subject line.
> Changes v3 -> v4:
> use "riscv" instead of "riscv64" in the summary of patch 5 subject line.
> Changes v4 -> v5:
> add a new patch "RISC-V: Fixup schedule out issue in machine_crash_shutdown()"
> Changes v5 -> v6:
> 1, move "fixup" patches to the start of the patch set.
> 2, change patch 1, 2, 6's subject to make it tell more what it's about.
> 3, add Fixes for patch 3.
> 4, adjuest the changes format for patch 6.
>
>
> Xianting Tian (6):
> RISC-V: kexec: Fixup use of smp_processor_id() in preemptible context
> RISC-V: Fixup get incorrect user mode PC for kernel mode regs
> RISC-V: Fixup schedule out issue in machine_crash_shutdown()
> RISC-V: Add modules to virtual kernel memory layout dump
> RISC-V: Add arch_crash_save_vmcoreinfo support
> Documentation: kdump: describe VMCOREINFO export for RISCV64
>
> .../admin-guide/kdump/vmcoreinfo.rst | 31 +++++++++++++++++++
> arch/riscv/kernel/Makefile | 1 +
> arch/riscv/kernel/crash_core.c | 29 +++++++++++++++++
> arch/riscv/kernel/crash_save_regs.S | 2 +-
> arch/riscv/kernel/machine_kexec.c | 28 ++++++++++++++---
> arch/riscv/mm/init.c | 4 +++
> 6 files changed, 89 insertions(+), 6 deletions(-)
> create mode 100644 arch/riscv/kernel/crash_core.c
>
> --
> 2.17.1
>