Re: [Xen-devel] [PATCH v7 00/15] x86/hvm: I/O emulation cleanup and fix | Full Backtrace of domU's X crash caused by SSE2 istruction in attachment

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 09/07/2015 15:10, Paul Durrant ha scritto:
> This patch series re-works much of the code involved in emulation of port
> and memory mapped I/O for HVM guests.
>
> The code has become very convoluted and, at least by inspection, certain
> emulations will apparently malfunction.
>
> The series is broken down into 15 patches (which are also available in
> my xenbits repo: http://xenbits.xen.org/gitweb/?p=people/pauldu/xen.git
> on the emulation34 branch).
Yesterday I retried with this version and seems that you fixed something 
that make possible atleast debug in the domU.
I taken gdb data of X crash inside Sid hvm domU:
#0  sse2_blt (src_bits=<optimized out>, dst_bits=<optimized out>, 
src_stride=<optimized out>, dst_stride=<optimized out>, 
src_bpp=<optimized out>, src_x=<optimized out>, src_y=0, dest_x=0, 
dest_y=0, width=1024, height=<optimized out>, dst_bpp=<optimized out>, 
imp=<optimized out>) at ../../pixman/pixman-sse2.c:4773
Latest istruction:
=> 0x7f70360ef8eb <sse2_blt+459>:    movaps %xmm0,-0x10(%rsi)

Full log in attachment.

If you need more informations/tests tell me and I'll post them.

Thanks for any reply and sorry for my bad english.

> Previous changelog
> ------------------
>
> v4:
>   - Removed previous patch (make sure translated MMIO reads or
>     writes fall within a page) and rebased rest of series.
>   - Address Jan's comments on patch #1
>
> v3:
>   - Addressed comments from Jan
>   - Re-ordered series to bring a couple of more trivial patches to the
>     front
>   - Backport to XenServer (4.5) now passing automated tests
>   - Tested on unstable with QEMU upstream and trad, with and without
>     HAP (to force shadow emulation)
>
> v2:
>   - Removed bogus assertion from patch #15
>   - Re-worked patch #17 after basic testing of back-port onto XenServer
>
> Subsequent changes are logged in the individual patch files (thanks
> to David Vrabel for that).
>
> Testing
> -------
>
> v6 of the series was been back-ported to staging-4.5 and then dropped
> onto the XenServer (Dundee) patch queue. All automated branch-safety tests
> pass.
>
> v7 has just been compile tested since changes were largely cosmetic. It
> will be back-ported in the near future.
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxx
> http://lists.xen.org/xen-devel

Attachment: X-gdb.log
Description: Text document

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel