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Server : Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8e-fips-rhel5 DAV/2 PHP/5.2.17 System : Linux localhost 2.6.18-419.el5 #1 SMP Fri Feb 24 22:47:42 UTC 2017 x86_64 User : nobody ( 99) PHP Version : 5.2.17 Disable Function : NONE Directory : /usr/share/doc/systemtap-client-1.8/examples/io/ |
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#!/usr/bin/stap
probe ioblock.request {
if (bdev==bdev_contains && sector<4) {
printf("device %s sector %d %s, process %s[%d]\n",
devname, sector, (rw==BIO_READ ? "read":"write"), execname(), pid())
print_backtrace()
}
}