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

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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






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