Re: [RFC PATCH v3 0/9] fsdax: introduce fs query to support reflink

[Jane Chu]

Hi, Shiyang,

On 12/18/2020 1:13 AM, Ruan Shiyang wrote:
> > > > So I tried the patchset with pmem error injection, the SIGBUS payload
> > > > does not look right -
> > > >
> > > > ** SIGBUS(7): **
> > > > ** si_addr(0x(nil)), si_lsb(0xC), si_code(0x4, BUS_MCEERR_AR) **
> > > >
> > > > I expect the payload looks like
> > > >
> > > > ** si_addr(0x7f3672e00000), si_lsb(0x15), si_code(0x4, 
> > > > BUS_MCEERR_AR) **
> > >
> > > Thanks for testing.  I test the SIGBUS by writing a program which calls
> > > madvise(... ,MADV_HWPOISON) to inject memory-failure.  It just shows 
> > > that
> > > the program is killed by SIGBUS.  I cannot get any detail from it.  So,
> > > could you please show me the right way(test tools) to test it?
> >
> > I'm assuming that Jane is using a program that calls sigaction to
> > install a SIGBUS handler, and dumps the entire siginfo_t structure
> > whenever it receives one...

Yes, thanks Darrick.

> OK.  Let me try it and figure out what's wrong in it.

I injected poison via "ndctl inject-error",  not expecting it made any 
difference though.

Any luck?

thanks,
-jane