Public bug reported:
In function `received_data` in gril/grilio.c, when we have a ring_buffer
of size 8192, and its in position mark at 8192, out position mark at
8188, ring_buffer_avail_no_wrap will always return zero because it just
has to wrap to write any new data. So, the function received_data in
https://github.com/rilmodem/ofono/blob/master/gril/grilio.c will always
have toread = 0, never go through do-while loop body, and jump over all
the following if-conditions because none of their conditions are
evaluated to true. function received_data will then return true and be
dispatched again by gio almost immediately.
** Affects: ofono (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1408228
Title:
GRilIO may stop reading under boundary conditions
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