Messages in this thread | | | Date | Mon, 30 Jul 2007 20:45:25 -0700 | From | Badari <> | Subject | Re: [PATCH] add check do_direct_IO() return val |
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Joe Jin wrote: >> Well, I'm having a heck of a time getting this to fail. It looks >> possible, though. Joe, were you guys able to narrow it down to a >> reproducible test case? Do you have any oops output messages from >> the crashes? >> > > Zach, it easy to reproduce through fio with following config file > > # cat jobfile > [global] > bs=8k > iodepth=1024 > iodepth_batch=60 > randrepeat=1 > size=1m > directory=/home/oracle > numjobs=20 > [job1] > ioengine=sync > bs=1k > direct=1 > rw=randread > filename=file1:file2 > [job2] > ioengine=libaio > rw=randwrite > direct=1 > filename=file1:file2 > [job3] > bs=1k > ioengine=posixaio > rw=randwrite > direct=1 > filename=file1:file2 > [job4] > ioengine=splice > direct=1 > rw=randwrite > filename=file1:file2 > [job5] > bs=1k > ioengine=sync > rw=randread > filename=file1:file2 > [job7] > ioengine=libaio > rw=randwrite > filename=file1:file2 > [job8] > ioengine=posixaio > rw=randwrite > filename=file1:file2 > [job9] > ioengine=splice > rw=randwrite > filename=file1:file2 > [job10] > ioengine=mmap > rw=randwrite > bs=1k > filename=file1:file2 > [job11] > ioengine=mmap > rw=randwrite > direct=1 > filename=file1:file2 > > Hmm.. in this config file, whats causing DIO to panic ? Which test actually passing faulty buffer ?
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