BUILD_CLEAN
poison byte = 0x2d (bit7 RUNNING = clear)
after 31 failing poll iterations: reinited=1 (garbage regs.stat=0x2d decided)
RESULT: re-init decision taken from UNINITIALIZED regs.stat (byte 0x2d, RUNNING bit clear)
poison byte = 0xcd (bit7 RUNNING = set)
after 40 failing poll iterations: reinited=0 (garbage regs.stat=0xcd decided)
RESULT: no re-init (byte 0xcd had RUNNING bit set)
=== rerun all four harnesses (final evidence) ===
write(/dev/cyapa*, buf, 0) returned: 0xabababab (-1414812757)
RESULT: UNINITIALIZED STACK VALUE LEAKED (poison 0xABABABAB observed)
cyapa_poll_thread: freq=0, computing (hz + freq - 1) / freq
RESULT: SIGFPE - integer division by zero raised (in kernel context: #DE trap -> panic)
open(/dev/cyapa0-67): No such file or directory
(device not present on this machine - needs real cypress trackpad on smbus)
rc=2