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| author | David S. Miller <davem@davemloft.net> | 2014-09-08 08:41:53 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-08 08:41:53 +0400 |
| commit | eb84d6b60491a3ca3d90d62ee5346b007770d40d (patch) | |
| tree | 22aadf9ada15e1ae5ba4c400aafab6f2541996e6 /lib | |
| parent | 97a13e5289baa96eaddd06e61d277457d837af3a (diff) | |
| parent | d030671f3f261e528dc6e396a13f10859a74ae7c (diff) | |
| download | linux-eb84d6b60491a3ca3d90d62ee5346b007770d40d.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 11 | ||||
| -rw-r--r-- | lib/assoc_array.c | 2 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 07c28323f88f..a28590083622 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -892,6 +892,10 @@ config DEBUG_WW_MUTEX_SLOWPATH the full mutex checks enabled with (CONFIG_PROVE_LOCKING) this will test all possible w/w mutex interface abuse with the exception of simply not acquiring all the required locks. + Note that this feature can introduce significant overhead, so + it really should not be enabled in a production or distro kernel, + even a debug kernel. If you are a driver writer, enable it. If + you are a distro, do not. config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks" @@ -1032,8 +1036,13 @@ config TRACE_IRQFLAGS either tracing or lock debugging. config STACKTRACE - bool + bool "Stack backtrace support" depends on STACKTRACE_SUPPORT + help + This option causes the kernel to create a /proc/pid/stack for + every process, showing its current stack trace. + It is also used by various kernel debugging features that require + stack trace generation. config DEBUG_KOBJECT bool "kobject debugging" diff --git a/lib/assoc_array.c b/lib/assoc_array.c index c0b1007011e1..ae146f0734eb 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -1735,7 +1735,7 @@ ascend_old_tree: gc_complete: edit->set[0].to = new_root; assoc_array_apply_edit(edit); - edit->array->nr_leaves_on_tree = nr_leaves_on_tree; + array->nr_leaves_on_tree = nr_leaves_on_tree; return 0; enomem: |