On Tue, Oct 7, 2025 at 7:36 PM Mikhail Zaslonko <[email protected]> wrote:
> Hi Tao, > > On 10/7/2025 1:11 AM, Tao Liu wrote: > > On Tue, Sep 30, 2025 at 8:18 PM lijiang <[email protected]> wrote: > >> > >> On Tue, Sep 30, 2025 at 3:01 PM Mikhail Zaslonko < > [email protected]> wrote: > >>> > >>> Hello, > >>> > >>> On 9/30/2025 4:53 AM, lijiang wrote: > >>>> On Tue, Sep 30, 2025 at 2:18 AM Mikhail Zaslonko < > [email protected]> > >>>> wrote: > >>>> > >>>>> Hi Lianbo, > >>>>> > >>>>> It seems we have a problem printing disassembly blocks in the log > after > >>>>> this patch (at least on s390). > >>>>> See number of empty lines printed below. > >>>>> > >>>> > >>>> Can you try it with the following two patches? > >>>> [1] > >>>> > https://www.mail-archive.com/[email protected]/msg01621.html > >>> This patch is present on crash master, doesnt affect the issue. > >>>> [2] > >>>> > https://www.mail-archive.com/[email protected]/msg01636.html > >>>> > >>> This one helps indeed! At least I do not se the blanks lines in my > scenario. > >>> BUT, if I use 'log -R' the blank lines are back again! > >> > >> > >> Thanks for the information, Mikhail. > >> Let me see how to debug this(although I can not reproduce it on s390x). > > > > I didn't reproduce the issue on my s390x machine either, maybe sharing > > the vmcore to us can help. > > I'm not sure I'm allowed to send this data outside. > > Sorry for the late reply because of China holiday. If you can share your test case(or steps), that will help me to reproduce the current issue. Anyway I will check it in detail. I think the problem takes place for the logs printed with pr_cont() by the > kernel (e.g. show_code() of arch/s390/kernel/dis.c for printing > disassembly as > in my sample). > > Thanks for the information. Lianbo >
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