Re: [PATCH][v3] hung_task: Panic after fixed number of hung tasks

Hi--

On 10/12/25 4:50 AM, lirongqing wrote:

From: Li RongQing lirongqing@baidu.com

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index a51ab46..7d9a8ee 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1992,14 +1992,20 @@ the added memory block itself do not be affected. hung_task_panic=

• 	[KNL] Should the hung task detector generate panics.
  

• 	Format: 0 | 1
  

• 	[KNL] Number of hung tasks to trigger kernel panic.
  

• 	Format: <int>
  

• 	Set this to the number of hung tasks that must be
  

• 	detected before triggering a kernel panic.
  

• 	0: don't panic
  

• 	1: panic immediately on first hung task
  

• 	N: panic after N hung tasks are detect
  

are detected

• 	A value of 1 instructs the kernel to panic when a
  

• 	hung task is detected. The default value is controlled
  

• 	by the CONFIG_BOOTPARAM_HUNG_TASK_PANIC build-time
  

• 	option. The value selected by this boot parameter can
  

• 	be changed later by the kernel.hung_task_panic sysctl.
  

• 	The default value is controlled by the
  

• 	CONFIG_BOOTPARAM_HUNG_TASK_PANIC build-time option. The value
  

• 	selected by this boot parameter can be changed later by the
  

• 	kernel.hung_task_panic sysctl.
  

hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC) terminal devices. Valid values: 0..8