diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Kconfig.debug | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ba106db5a65b..882c51048993 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug | |||
@@ -150,7 +150,7 @@ config DETECT_SOFTLOCKUP | |||
150 | help | 150 | help |
151 | Say Y here to enable the kernel to detect "soft lockups", | 151 | Say Y here to enable the kernel to detect "soft lockups", |
152 | which are bugs that cause the kernel to loop in kernel | 152 | which are bugs that cause the kernel to loop in kernel |
153 | mode for more than 10 seconds, without giving other tasks a | 153 | mode for more than 60 seconds, without giving other tasks a |
154 | chance to run. | 154 | chance to run. |
155 | 155 | ||
156 | When a soft-lockup is detected, the kernel will print the | 156 | When a soft-lockup is detected, the kernel will print the |
@@ -162,6 +162,30 @@ config DETECT_SOFTLOCKUP | |||
162 | can be detected via the NMI-watchdog, on platforms that | 162 | can be detected via the NMI-watchdog, on platforms that |
163 | support it.) | 163 | support it.) |
164 | 164 | ||
165 | config BOOTPARAM_SOFTLOCKUP_PANIC | ||
166 | bool "Panic (Reboot) On Soft Lockups" | ||
167 | depends on DETECT_SOFTLOCKUP | ||
168 | help | ||
169 | Say Y here to enable the kernel to panic on "soft lockups", | ||
170 | which are bugs that cause the kernel to loop in kernel | ||
171 | mode for more than 60 seconds, without giving other tasks a | ||
172 | chance to run. | ||
173 | |||
174 | The panic can be used in combination with panic_timeout, | ||
175 | to cause the system to reboot automatically after a | ||
176 | lockup has been detected. This feature is useful for | ||
177 | high-availability systems that have uptime guarantees and | ||
178 | where a lockup must be resolved ASAP. | ||
179 | |||
180 | Say N if unsure. | ||
181 | |||
182 | config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE | ||
183 | int | ||
184 | depends on DETECT_SOFTLOCKUP | ||
185 | range 0 1 | ||
186 | default 0 if !BOOTPARAM_SOFTLOCKUP_PANIC | ||
187 | default 1 if BOOTPARAM_SOFTLOCKUP_PANIC | ||
188 | |||
165 | config SCHED_DEBUG | 189 | config SCHED_DEBUG |
166 | bool "Collect scheduler debugging info" | 190 | bool "Collect scheduler debugging info" |
167 | depends on DEBUG_KERNEL && PROC_FS | 191 | depends on DEBUG_KERNEL && PROC_FS |