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 ?
Thanks,
Badari
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