| Commit message (Collapse) | Author | Age | Files | Lines | |
|---|---|---|---|---|---|
| * | Add support for zstd-compressed user and kernel core dumps. | Mark Johnston | 2018-02-13 | 1 | -0/+1 |
| | | | | | | | | | | | | | | | | | | | | This works similarly to the existing gzip compression support, but zstd is typically faster and gives better compression ratios. Support for this functionality must be configured by adding ZSTDIO to one's kernel configuration file. dumpon(8)'s new -Z option is used to configure zstd compression for kernel dumps. savecore(8) now recognizes and saves zstd-compressed kernel dumps with a .zst extension. Submitted by: cem (original version) Relnotes: yes Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D13101, https://reviews.freebsd.org/D13633 Notes: svn path=/head/; revision=329240 | ||||
| * | Generalize the gzio API. | Mark Johnston | 2018-01-08 | 1 | -0/+53 |
| We currently use a set of subroutines in kern_gzio.c to perform compression of user and kernel core dumps. In the interest of adding support for other compression algorithms (zstd) in this role without complicating the API consumers, add a simple compressor API which can be used to select an algorithm. Also change the (non-default) GZIO kernel option to not enable compressed user cores by default. It's not clear that such a default would be desirable with support for multiple algorithms implemented, and it's inconsistent in that it isn't applied to kernel dumps. Reviewed by: cem Differential Revision: https://reviews.freebsd.org/D13632 Notes: svn path=/head/; revision=327707 | |||||
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