1019354b54
Given nodes 1 and 2, where node 1 has an advskew of 0 and node 2 has an advskew of 100, making them master and backup respectively. If net.inet.carp.demotion is set to a negative value on node 1, node 2 might become master while node 1 still retains it master status. Wether or not node 2 becomes master seems to depend on the nodes advskew and what the demotion sysctl was set to on node 1. The reason for node 2 becoming master seems to be that the calculated advskew taking demotion into account is truncated to a single unsigned byte when copied into the carp header for sending, and node 1 stays master since it takes uses the whole non-truncated calculated advskew when deciding wether to stay master. PR: 259528 Reviewed by: donner, glebius MFC after: 3 weeks Sponsored by: Modirum MDPay Differential Revision: https://reviews.freebsd.org/D32759
FreeBSD Source:
This is the top level of the FreeBSD source directory.
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Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Various commands and libraries under the Common Development and Distribution License. |
| contrib | Packages contributed by 3rd parties. |
| crypto | Cryptography stuff (see crypto/README). |
| etc | Template files for /etc. |
| gnu | Various commands and libraries under the GNU Public License. Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
| include | System include files. |
| kerberos5 | Kerberos5 (Heimdal) package. |
| lib | System libraries. |
| libexec | System daemons. |
| release | Release building Makefile & associated tools. |
| rescue | Build system for statically linked /rescue utilities. |
| sbin | System commands. |
| secure | Cryptographic libraries and commands. |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources. |
sys/arch/conf |
Kernel configuration files. GENERIC is the configuration used in release builds. NOTES contains documentation of all possible entries. |
| tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
| tools | Utilities for regression testing and miscellaneous tasks. |
| usr.bin | User commands. |
| usr.sbin | System administration commands. |
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