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authorUrsula Braun <braunu@de.ibm.com>2008-02-09 18:24:32 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-02-09 18:24:39 +0100
commitbf3f837804997e5f5d9888051e9e5356961af0f2 (patch)
tree4d2c70d51edae38b92803f38fa025ee4875e0a34 /README
parent522d8dc08b16deb51c128d544ab1cb9c621c950e (diff)
[S390] qdio: avoid hang when establishing qdio queues
If qdio establish runs in parallel with a channel error, ccw_device_start_timeout may not trigger the qdio_timeout_handler. In this case neither QDIO_IRQ_STATE_ESTABLISHED nor QDIO_IRQ_STATE_ERR is reached and the following wait_event hangs forever. Solution: do not make use of the timeout option with ccw_device_start, but add a timeout to the following wait_event. Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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