search for: randomdev_soft

...h file that was corrected in FreeBSD. Branch Revision Path - ------------------------------------------------------------------------- RELENG_6 src/sys/dev/random/randomdev.c 1.59.2.2 src/sys/dev/random/randomdev_soft.c 1.11.2.3 RELENG_6_4 src/UPDATING 1.416.2.40.2.2 src/sys/dev/random/randomdev.c 1.59.2.1.8.2 src/sys/dev/random/randomdev_soft.c 1.11.2.2.6.2 RELENG_6_3 src/UPDATING...

...h file that was corrected in FreeBSD. Branch Revision Path - ------------------------------------------------------------------------- RELENG_6 src/sys/dev/random/randomdev.c 1.59.2.2 src/sys/dev/random/randomdev_soft.c 1.11.2.3 RELENG_6_4 src/UPDATING 1.416.2.40.2.2 src/sys/dev/random/randomdev.c 1.59.2.1.8.2 src/sys/dev/random/randomdev_soft.c 1.11.2.2.6.2 RELENG_6_3 src/UPDATING...

Hi. I experimented a bit with collecting entropy from the time it takes for device_attach() to run (in CPU cycles). It seems that those times have enough variation that we can use it for entropy harvesting. It happens even before root is mounted, so pretty early. On the machine I'm testing it, which has minimal kernel plus NIC driver I see 75 device_attach() calls. I'm being very careful