On 8/27/18 2:40 PM, Vincent Fu wrote: > From: Vincent Fu <Vincent.Fu@xxxxxxx> > > The Linux sg driver accepts only 16 SCSI commands in flight > at a time per file descriptor. fio does not exit gracefully > when it attempts to queue up 17 or more trim commands via > the sg ioengine. This patch improves error handling in the > sg ioengine commit function to achieve a graceful exit if > fio attempts to queue up too many trim commands. The key to > this is calling clear_io_u on each io_u in the 17th trim > command. With this patch fio no longer loops forever > waiting for the IOs in the (not succesffully submitted) > 17th trim command to complete. Applied, thanks Vincent. -- Jens Axboe
