Apache2::Resource (3pm) - Limit resources used by httpd children
Apache2::SizeLimit (3pm) - Because size does matter.
Apache::SizeLimit::Core (3pm) - Because size does matter.
ata_down_xfermask_limit (9) - adjust dev xfer masks downward
ata_force_link_limits (9) - force link limits according to libata.force
balance_dirty_pages_ratelimited (9) - balance dirty memory state
bdev_stack_limits (9) - adjust queue limits for stacked drivers
blk_cloned_rq_check_limits (9) - Helper function to check a cloned request fo...
blk_limits_io_min (9) - set minimum request size for a device
blk_limits_io_opt (9) - set optimal request size for a device
blk_queue_bounce_limit (9) - set bounce buffer limit for queue
blk_queue_stack_limits (9) - inherit underlying queue limits for stacked drivers
blk_set_default_limits (9) - reset limits to default values
blk_set_stacking_limits (9) - set default limits for stacking devices
blk_stack_limits (9) - adjust queue_limits for stacked devices
BSD::Resource (3pm)  - BSD process resource limit and priority functions
Class::MOP::MiniTrait (3pm) - Extremely limited trait application
disk_stack_limits (9) - adjust queue limits for stacked drivers
dpkg-maintscript-helper (1) - works around known dpkg limitations in maintain...
fail2ban (1)         - a set of server and client programs to limit brute for...
faillog (8)          - display faillog records or set login failure limits
getdelim (3)         - delimited string input
getline (3)          - delimited string input
getrlimit (2)        - get/set resource limits
limits.conf (5)      - configuration file for the pam_limits module
pam_limits (8)       - PAM module to limit resources
pam_securetty (8)    - Limit root login to special devices
pcrelimits (3)       - Perl-compatible regular expressions
printk_timed_ratelimit (9) - caller-controlled printk ratelimiting
prlimit (1)          - get and set process resource limits
prlimit (2)          - get/set resource limits
vlimit (3)           - get/set resource limits
Regexp::Common::balanced (3pm) - - provide regexes for strings with balanced ...
Regexp::Common::delimited (3pm) - - provides a regex for delimited strings
regulator_get_current_limit (9) - get regulator output current
regulator_set_current_limit (9) - set regulator output current limit
sata_down_spd_limit (9) - adjust SATA spd limit downward
sata_link_init_spd (9) - Initialize link->sata_spd_limit
sata_set_spd (9)     - set SATA spd according to spd limit
setrlimit (2)        - get/set resource limits
snd_pcm_limit_hw_rates (9) - determine rate_min/rate_max fields
snd_pcm_limit_isa_dma_size (9) - Get the max size fitting with ISA DMA transfer
snd_printd_ratelimit (9) - (unknown subject)
snd_soc_limit_volume (9) - Set new limit to an existing volume control.
softlimit (8)        - runs another program with new resource limits.
strlcat (9)          - Append a length-limited, C-string to another
strncasecmp (9)      - Case insensitive, length-limited string comparison
strncat (9)          - Append a length-limited, C-string to another
strnchr (9)          - Find a character in a length limited string
strncmp (9)          - Compare two length-limited strings
strncpy (9)          - Copy a length-limited, C-string
strnlen (9)          - Find the length of a length-limited string
strnstr (9)          - Find the first substring in a length-limited string
struct_ieee80211_iface_limit (9) - limit on certain interface types
tc-bfifo (8)         - Packet limited First In, First Out queue
tc-pfifo (8)         - Packet limited First In, First Out queue
Text::Balanced (3perl) - Extract delimited text sequences from strings.
timeout (1)          - run a command with a time limit
ugetrlimit (2)       - get/set resource limits
vserver (2)          - unimplemented system calls
ulimit (3)           - get and set user limits