[Crash-utility] Re: [PATCH 0/3] RISCV64: enhance bt command

Hi, Song On 12/14/23 13:07, devel-request(a)lists.crash-utility.osci.io wrote: > Date: Wed, 13 Dec 2023 17:45:05 +0800 > From: Song Shuai&lt;songshuaishuai(a)tinylab.org&gt; > Subject: [Crash-utility] [PATCH 0/3] RISCV64: enhance bt command > To:k-hagio-ab@nec.com,xianting.tian@linux.alibaba.com > Cc:devel@lists.crash-utility.osci.io, Song Shuai >     &lt;songshuaishuai(a)tinylab.org&gt; > Message-ID:<20231213094508.693236-1-songshuaishuai@tinylab.org> > > hi, > > This series enhances the bt command for RISCV64 by making bt aware of > - possible kernel and user exception frames (bt -e) > - per-cpu IRQ stacks (bt for vmcore crashed in irq stack, bt -E) > - per-cpu overflow stacks (bt for vmcore caused by kernel stack overflow) > > This series is based on the "RISCV64: Fix 'bt' output when no ra on > the stack top" patch sent a few days ago. You can get them all from my > Github repo: > > https://github.com/sugarfillet/crash/commits/rv64-bt-enhance/ Could you please provide the patched kexec-tools(link) for riscv64?(if possible, please give the test steps) It can help me to do some tests quickly.

Thanks. Lianbo > > The detailed test report can be found in each patch's commit-msg and > all these tests passed on the RV64 Qemu-virt and with RISC-V Linux v6.6. >

> Here is the abstract of these three patches: > > Patch1 : >      [Crash-utility] RISCV64: Add support for 'bt -e' option >      With this patch we can search the stack for possible kernel and user >      mode exception frames via 'bt -e' command. > Patch2 : >      [Crash-utility] RISCV64: Add per-cpu IRQ stacks support >      This patch introduces per-cpu IRQ stacks for RISCV64 to let >      "bt" do backtrace on it and 'bt -E' search eframes on it, >      and the 'help -m' command displays the addresses of each >      per-cpu IRQ stack. > Patch3: >      [Crash-utility] RISCV64: Add per-cpu overflow stacks support >      The patch introduces per-cpu overflow stacks for RISCV64 to let >      "bt" do backtrace on it and the 'help -m' command dispalys the >      addresss of each per-cpu overflow stack. > > Song Shuai (3): >    [Crash-utility] RISCV64: Add support for 'bt -e' option >    [Crash-utility] RISCV64: Add per-cpu IRQ stacks support >    [Crash-utility] RISCV64: Add per-cpu overflow stacks support > >   defs.h    |  30 +++- >   help.c    |   2 +- >   riscv64.c | 492 +++++++++++++++++++++++++++++++++++++++++++++++++++--- >   3 files changed, 494 insertions(+), 30 deletions(-) > > -- 2.20.1