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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 08:44:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-04-26 08:44:23 -0700 |
| commit | ffc766b31e900e91454d53b8619f0ff5377df945 (patch) | |
| tree | 3738ba1d4622f557a322426c169c3c2860ac7fc1 /lib | |
| parent | b0e22b47f650b53dbb094cd0011a48f6f3ae3e29 (diff) | |
| parent | 5dc33592e95534dc8455ce3e9baaaf3dae0fff82 (diff) | |
| download | linux-stable-ffc766b31e900e91454d53b8619f0ff5377df945.tar.gz linux-stable-ffc766b31e900e91454d53b8619f0ff5377df945.tar.bz2 linux-stable-ffc766b31e900e91454d53b8619f0ff5377df945.zip | |
Merge tag 'tomoyo-pr-20210426' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1
Pull lockdep capacity limit updates from Tetsuo Handa:
"syzbot is occasionally reporting that fuzz testing is terminated due
to hitting upper limits lockdep can track.
Analysis via /proc/lockdep* did not show any obvious culprits, allow
tuning tracing capacity constants"
* tag 'tomoyo-pr-20210426' of git://git.osdn.net/gitroot/tomoyo/tomoyo-test1:
lockdep: Allow tuning tracing capacity constants.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 417c3d3e521b..2c7f46b366f1 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1370,6 +1370,46 @@ config LOCKDEP config LOCKDEP_SMALL bool +config LOCKDEP_BITS + int "Bitsize for MAX_LOCKDEP_ENTRIES" + depends on LOCKDEP && !LOCKDEP_SMALL + range 10 30 + default 15 + help + Try increasing this value if you hit "BUG: MAX_LOCKDEP_ENTRIES too low!" message. + +config LOCKDEP_CHAINS_BITS + int "Bitsize for MAX_LOCKDEP_CHAINS" + depends on LOCKDEP && !LOCKDEP_SMALL + range 10 30 + default 16 + help + Try increasing this value if you hit "BUG: MAX_LOCKDEP_CHAINS too low!" message. + +config LOCKDEP_STACK_TRACE_BITS + int "Bitsize for MAX_STACK_TRACE_ENTRIES" + depends on LOCKDEP && !LOCKDEP_SMALL + range 10 30 + default 19 + help + Try increasing this value if you hit "BUG: MAX_STACK_TRACE_ENTRIES too low!" message. + +config LOCKDEP_STACK_TRACE_HASH_BITS + int "Bitsize for STACK_TRACE_HASH_SIZE" + depends on LOCKDEP && !LOCKDEP_SMALL + range 10 30 + default 14 + help + Try increasing this value if you need large MAX_STACK_TRACE_ENTRIES. + +config LOCKDEP_CIRCULAR_QUEUE_BITS + int "Bitsize for elements in circular_queue struct" + depends on LOCKDEP + range 10 30 + default 12 + help + Try increasing this value if you hit "lockdep bfs error:-1" warning due to __cq_enqueue() failure. + config DEBUG_LOCKDEP bool "Lock dependency engine debugging" depends on DEBUG_KERNEL && LOCKDEP |