These are things that I would like to eventually get done/fix. Please mail me if you'd like to work on them.

Merge fdescfs into devfs.

• needed for fexecve()+shebang
• expected by lots of third-party software
• default in other unix-like kernels
• considerations:
  • needs to appear in jails by default as well
  • need to sort out Capsicum integration

Early microcode loading on AMD

• lacking a convenient test system

TRIM for swap devices

• interrogate swap GEOM for candelete capability
• dispatch TRIMs asynchronously from swp_pager_freeswapspace()
• Doug is working on this: https://reviews.freebsd.org/D20863

IPv6 netdump(4)

• need to use Neighbour Discovery to find the first-hop router

Kernel dump regression testing

• doable with bhyve and expect after r346550

lockmgr(9), rmlock(9) and epoch(9) integration into lockstat

• lockmgr is mostly done now

sendmail hangs on boot if the hostname contains a single component

Better VM statistics

• Per-domain stats in vmstat -s output
• Add counters for the various branches in page daemon scanning (e.g., how many times did we skip a busy page?)
• Measure internal fragmentation in UMA zones
• Page table and PV chunk memory usage

syzbot reports

• https://syzkaller.appspot.com/freebsd

Capsicumizing the base system

stress2 as a service

• False-positive WITNESS warnings. These confuse automation and new users alike.
  • Partial progress using the blessing table, but we need a more precise method (e.g., add a lock-specific NOWITNESS flag argument to lock operations).
• stack_chk_init: WARNING: Initializing stack protection with non-random cookies!
  • I don't know whether this is important or how to fix it.
• WARNING: attempt to domain_add(%s) after domainfinalize()
  • Printed when bluetooth modules are auto-loaded during boot.

Set a Kyua configuration variable from the command line:

• kyua -v test_suites.FreeBSD.allow_sysctl_side_effects=1 test

Resetting an arm64 CPU during early boot:

ldr x0, =(0x84000009)                                                                                                                       
smc #0                                                                                                                                      

• Need to check the method for the PSCI device in the FDT, it should be “smc”