Nikunj A Dadhania <nik...@linux.vnet.ibm.com> writes: > commit 08521e28c7e6e8cc1f53424a0f845f58d2ed9546 > Author: Paolo Bonzini <pbonz...@redhat.com> > Date: Fri May 24 12:54:01 2013 +0200 > > memory: add big endian support to access_with_adjusted_size > > This will be used to split 8-byte access down to two four-byte accesses. > > Reviewed-by: Richard Henderson <r...@twiddle.net> > Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> > > > If I hack the above funniness in my USB EHCI driver, somewhere down the > qemu crashes at code introduced by this patch: > > Program received signal SIGSEGV, Segmentation fault. > 0x0000000000000000 in ?? () > (gdb) bt > #0 0x0000000000000000 in ?? () > #1 0x00005555557a0ea4 in access_with_adjusted_size (addr=addr@entry=12, > value=value@entry=0x7fffd5a86680, size=size@entry=1, > access_size_min=<optimized out>, access_size_max=<optimized out>, > access=0x5555557a1f80 <memory_region_oldmmio_write_accessor>, > opaque=0x5555567f8ab8) at /home/nikunj/work/power/code/qemu/memory.c:396 > #2 0x00005555557a5ebb in memory_region_dispatch_write (size=1, data=0, > addr=12, mr=0x5555567f8ab8) at /home/nikunj/work/power/code/qemu/memory.c:998 > > Reverting this, I can safely boot using a usb-storage device put on ehci > controller.
Just reverting this patch does not help though, i will need to figure which all commits are bad. Regards Nikunj
