bc7ee8e5bc
Summary: When using the base stack in conjunction with RACK, it appears that infrequently, ++tp->t_dupacks is instantly larger than tcprexmtthresh. This leaves the recover flightsize (sackhint.recover_fs) uninitialized, leading to a div/0 panic. Address this by properly initializing the variable just prior to first use, if it is not properly initialized. In order to prevent stale information from a prior recovery to negatively impact the PRR calculations in this event, also clear recover_fs once loss recovery is finished. Finally, improve the readability of the initialization of recover_fs when t_dupacks == tcprexmtthresh by adjusting the indentation and using the max(1, snd_nxt - snd_una) macro. Reviewers: rrs, kbowling, tuexen, jtl, #transport, gnn!, jmg, manu, #manpages Reviewed By: rrs, kbowling, #transport Subscribers: bdrewery, andrew, rpokala, ae, emaste, bz, bcran, #linuxkpi, imp, melifaro Differential Revision: https://reviews.freebsd.org/D28114 |
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| .github/workflows | ||
| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| stand | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| .cirrus.yml | ||
| .clang-format | ||
| .gitattributes | ||
| .gitignore | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| Makefile.sys.inc | ||
| ObsoleteFiles.inc | ||
| README | ||
| README.md | ||
| RELNOTES | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory. This file
was last revised on:
FreeBSD
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contrib Packages contributed by 3rd parties.
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include System include files.
kerberos5 Kerberos5 (Heimdal) package.
lib System libraries.
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release Release building Makefile & associated tools.
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sbin System commands.
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used in release builds. NOTES contains documentation of
all possible entries.
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