DTrace in GENERIC (-cur­rent)

In case you have not noticed yet, KDTRACE_HOOKS is now in the GENERIC ker­nel in FreeB­SD-cur­rent. This means you just need to load the DTrace mod­ules and can use DTrace with the GENERIC ker­nel.

In case you do not know what you can do with DTrace, take the time to have a look at the DTrace blog. It is worth any minute you invest read­ing it.

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Lin­ux­u­la­tor progress

This week­end I made some progress in the lin­ux­u­la­tor:

  • I MFCed the report­ing of some linux-syscalls to 9‑stable and 8‑stable.
  • I updat­ed my lin­ux­u­la­tor-dtrace patch to a recent ‑cur­rent. I already com­piled it on i386 and arundel@ has it com­piled on amd64. I count­ed more than 500 new DTrace probes. Now that DTrace res­cans for SDT probes when a ker­nel mod­ule is loaded, there is no ker­nel pan­ic any­more when the lin­ux mod­ule is loaded after the DTrace mod­ules and you want to use DTrace. I try to com­mit this at a morn­ing of a day where I can fix things dur­ing the day in case some prob­lems show up which I did not notice dur­ing my test­ing.
  • I cre­at­ed a PR for portmgr@ to repocopy a new linux_base port.
  • I set the expi­ra­tion date of linux_base-fc4 (only used by 7.x and upstream way past its EoL) and all depen­dent ports. It is set to the EoL of the last 7.x release, which can not use a lat­er linux_base port. I also added a com­ment which explains that the date is the EoL of the last 7.x release.
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