diff options
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 073496dea848..ee1ac1cc082c 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -812,6 +812,17 @@ config BOOTPARAM_HUNG_TASK_PANIC_VALUE default 0 if !BOOTPARAM_HUNG_TASK_PANIC default 1 if BOOTPARAM_HUNG_TASK_PANIC +config WQ_WATCHDOG + bool "Detect Workqueue Stalls" + depends on DEBUG_KERNEL + help + Say Y here to enable stall detection on workqueues. If a + worker pool doesn't make forward progress on a pending work + item for over a given amount of time, 30s by default, a + warning message is printed along with dump of workqueue + state. This can be configured through kernel parameter + "workqueue.watchdog_thresh" and its sysfs counterpart. + endmenu # "Debug lockups and hangs" config PANIC_ON_OOPS @@ -1484,6 +1495,29 @@ config OF_RECONFIG_NOTIFIER_ERROR_INJECT If unsure, say N. +config NETDEV_NOTIFIER_ERROR_INJECT + tristate "Netdev notifier error injection module" + depends on NET && NOTIFIER_ERROR_INJECTION + help + This option provides the ability to inject artificial errors to + netdevice notifier chain callbacks. It is controlled through debugfs + interface /sys/kernel/debug/notifier-error-inject/netdev + + If the notifier call chain should be failed with some events + notified, write the error code to "actions/<notifier event>/error". + + Example: Inject netdevice mtu change error (-22 = -EINVAL) + + # cd /sys/kernel/debug/notifier-error-inject/netdev + # echo -22 > actions/NETDEV_CHANGEMTU/error + # ip link set eth0 mtu 1024 + RTNETLINK answers: Invalid argument + + To compile this code as a module, choose M here: the module will + be called netdev-notifier-error-inject. + + If unsure, say N. + config FAULT_INJECTION bool "Fault-injection framework" depends on DEBUG_KERNEL @@ -1523,8 +1557,7 @@ config FAIL_IO_TIMEOUT config FAIL_MMC_REQUEST bool "Fault-injection capability for MMC IO" - select DEBUG_FS - depends on FAULT_INJECTION && MMC + depends on FAULT_INJECTION_DEBUG_FS && MMC help Provide fault-injection capability for MMC IO. This will make the mmc core return data errors. This is |