On Mon, Aug 5, 2024 at 9:31 AM <devel-requ...@lists.crash-utility.osci.io> wrote:
> Date: Sun, 04 Aug 2024 05:46:17 -0000 > From: kuan-ying....@canonical.com > Subject: [Crash-utility] Re: [PATCH] arm64: Introduction of support > for 16K page with 3-level table support > To: devel@lists.crash-utility.osci.io > Message-ID: <20240804054617.17290.54...@lists.crash-utility.osci.io> > Content-Type: text/plain; charset="utf-8" > > Hi Lijiang and Tao, > > Thanks for taking look at this patch. > > I use kernel-6.10 to build arm64 kernel. > I modify arch/arm64/configs/defconfig with the following diff. > > diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig > index 2c7bf4da0b80..f981095a4440 100644 > --- a/arch/arm64/configs/defconfig > +++ b/arch/arm64/configs/defconfig > @@ -1682,12 +1682,10 @@ CONFIG_CMA_SIZE_MBYTES=32 > CONFIG_PRINTK_TIME=y > CONFIG_DEBUG_KERNEL=y > CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y > -CONFIG_DEBUG_INFO_REDUCED=y > CONFIG_MAGIC_SYSRQ=y > CONFIG_DEBUG_FS=y > # CONFIG_SCHED_DEBUG is not set > # CONFIG_DEBUG_PREEMPT is not set > -# CONFIG_FTRACE is not set > CONFIG_CORESIGHT=m > CONFIG_CORESIGHT_LINK_AND_SINK_TMC=m > CONFIG_CORESIGHT_CATU=m > @@ -1697,3 +1695,7 @@ CONFIG_CORESIGHT_STM=m > CONFIG_CORESIGHT_CPU_DEBUG=m > CONFIG_CORESIGHT_CTI=m > CONFIG_MEMTEST=y > +CONFIG_GDB_SCRIPTS=y > +CONFIG_STACKTRACE=y > +CONFIG_ARM64_VA_BITS_47=y > +CONFIG_ARM64_16K_PAGES=y > > Thank you for sharing this, Kuan-Ying. I tried to build the latest upstream kernel on another machine(with the va_bits 47 and 16k_pages configs), it works. The code changes are fine to me, and I do not see any new issues in my tests. Just one thing, there is an indentation issue in the arm64_vtop_3level_16k(), but I can help to correct it(when merging). For the patch: Ack Thanks Lianbo I can boot up with qemu-system-aarch64 and after booting up, I run the > "echo c > /proc/sysrq-trigger" in qemu to produce the > vmcore. > > After I get vmcore, I can use crash-tool to debug vmcore and vmlinux. > > Thank you, > Kuan-Ying Lee >
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