Hi,
sometimes, when booting up/resuming from disk, I get an oops[1].
obj_desc->common_field.access_bit_width is zero, but even after the
loop. Division before the loop is apparently OK.
This is the case:
/* Mask off any extra bits in the last datum */
buffer_tail_bits = obj_desc->common_field.bit_length %
obj_desc->common_field.access_bit_width;
.L39:
xorl %edx, %edx #
movzbl 37(%rbx), %esi #
<variable>.common_field.access_bit_width,
<variable>.common_field.access_bit_width
movl 24(%rbx), %eax # <variable>.common_field.bit_length,
<variable>.common_field.bit_length
--------------- here:
divl %esi # <variable>.common_field.access_bit_width
movl %edx, %ecx #, tmp121
testl %edx, %edx # tmp121
je .L41 #,
[1] http://www.fi.muni.cz/~xslaby/sklad/panics/acpi_oops.png
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