mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-01-11 17:10:13 +00:00
9544f9e694
The hung_task_panic sysctl is currently a blunt instrument: it's all or nothing. Panicking on a single hung task can be an overreaction to a transient glitch. A more reliable indicator of a systemic problem is when multiple tasks hang simultaneously. Extend hung_task_panic to accept an integer threshold, allowing the kernel to panic only when N hung tasks are detected in a single scan. This provides finer control to distinguish between isolated incidents and system-wide failures. The accepted values are: - 0: Don't panic (unchanged) - 1: Panic on the first hung task (unchanged) - N > 1: Panic after N hung tasks are detected in a single scan The original behavior is preserved for values 0 and 1, maintaining full backward compatibility. [lance.yang@linux.dev: new changelog] Link: https://lkml.kernel.org/r/20251015063615.2632-1-lirongqing@baidu.com Signed-off-by: Li RongQing <lirongqing@baidu.com> Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Lance Yang <lance.yang@linux.dev> Tested-by: Lance Yang <lance.yang@linux.dev> Acked-by: Andrew Jeffery <andrew@codeconstruct.com.au> [aspeed_g5_defconfig] Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: David Hildenbrand <david@redhat.com> Cc: Florian Wesphal <fw@strlen.de> Cc: Jakub Kacinski <kuba@kernel.org> Cc: Jason A. Donenfeld <jason@zx2c4.com> Cc: Joel Granados <joel.granados@kernel.org> Cc: Joel Stanley <joel@jms.id.au> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <kees@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: "Paul E . McKenney" <paulmck@kernel.org> Cc: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Phil Auld <pauld@redhat.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Shuah Khan <shuah@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Stanislav Fomichev <sdf@fomichev.me> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
91 lines
2.0 KiB
Plaintext
91 lines
2.0 KiB
Plaintext
CONFIG_LOCALVERSION=""
|
|
CONFIG_NET=y
|
|
CONFIG_NETDEVICES=y
|
|
CONFIG_NET_CORE=y
|
|
CONFIG_NET_IPIP=y
|
|
CONFIG_DUMMY=y
|
|
CONFIG_VETH=y
|
|
CONFIG_MULTIUSER=y
|
|
CONFIG_NAMESPACES=y
|
|
CONFIG_NET_NS=y
|
|
CONFIG_UNIX=y
|
|
CONFIG_INET=y
|
|
CONFIG_IPV6=y
|
|
CONFIG_NETFILTER=y
|
|
CONFIG_NETFILTER_ADVANCED=y
|
|
CONFIG_NF_CONNTRACK=y
|
|
CONFIG_NF_NAT=y
|
|
CONFIG_NETFILTER_XTABLES=y
|
|
CONFIG_NETFILTER_XTABLES_LEGACY=y
|
|
CONFIG_NETFILTER_XT_NAT=y
|
|
CONFIG_NETFILTER_XT_MATCH_LENGTH=y
|
|
CONFIG_NETFILTER_XT_MARK=y
|
|
CONFIG_NETFILTER_XT_TARGET_MASQUERADE=y
|
|
CONFIG_IP_NF_TARGET_REJECT=y
|
|
CONFIG_IP6_NF_TARGET_REJECT=y
|
|
CONFIG_IP_NF_IPTABLES_LEGACY=y
|
|
CONFIG_IP_NF_IPTABLES=y
|
|
CONFIG_IP_NF_FILTER=y
|
|
CONFIG_IP_NF_MANGLE=y
|
|
CONFIG_IP_NF_NAT=y
|
|
CONFIG_IP_ADVANCED_ROUTER=y
|
|
CONFIG_IP_MULTIPLE_TABLES=y
|
|
CONFIG_IPV6_MULTIPLE_TABLES=y
|
|
CONFIG_TTY=y
|
|
CONFIG_BINFMT_ELF=y
|
|
CONFIG_BINFMT_SCRIPT=y
|
|
CONFIG_VDSO=y
|
|
CONFIG_STRICT_KERNEL_RWX=y
|
|
CONFIG_VIRTUALIZATION=y
|
|
CONFIG_HYPERVISOR_GUEST=y
|
|
CONFIG_PARAVIRT=y
|
|
CONFIG_KVM_GUEST=y
|
|
CONFIG_PARAVIRT_SPINLOCKS=y
|
|
CONFIG_PRINTK=y
|
|
CONFIG_KALLSYMS=y
|
|
CONFIG_BUG=y
|
|
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
|
|
CONFIG_JUMP_LABEL=y
|
|
CONFIG_FUTEX=y
|
|
CONFIG_SHMEM=y
|
|
CONFIG_SLUB=y
|
|
CONFIG_SMP=y
|
|
CONFIG_SCHED_SMT=y
|
|
CONFIG_SCHED_MC=y
|
|
CONFIG_NUMA=y
|
|
CONFIG_PREEMPT=y
|
|
CONFIG_NO_HZ=y
|
|
CONFIG_NO_HZ_IDLE=y
|
|
CONFIG_NO_HZ_FULL=n
|
|
CONFIG_HZ_PERIODIC=n
|
|
CONFIG_HIGH_RES_TIMERS=y
|
|
CONFIG_FILE_LOCKING=y
|
|
CONFIG_POSIX_TIMERS=y
|
|
CONFIG_DEVTMPFS=y
|
|
CONFIG_PROC_FS=y
|
|
CONFIG_PROC_SYSCTL=y
|
|
CONFIG_SYSFS=y
|
|
CONFIG_TMPFS=y
|
|
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=15
|
|
CONFIG_LOG_BUF_SHIFT=18
|
|
CONFIG_PRINTK_TIME=y
|
|
CONFIG_BLK_DEV_INITRD=y
|
|
CONFIG_LEGACY_VSYSCALL_NONE=y
|
|
CONFIG_KERNEL_GZIP=y
|
|
CONFIG_PANIC_ON_OOPS=y
|
|
CONFIG_BUG_ON_DATA_CORRUPTION=y
|
|
CONFIG_LOCKUP_DETECTOR=y
|
|
CONFIG_SOFTLOCKUP_DETECTOR=y
|
|
CONFIG_HARDLOCKUP_DETECTOR=y
|
|
CONFIG_WQ_WATCHDOG=y
|
|
CONFIG_DETECT_HUNG_TASK=y
|
|
CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
|
|
CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
|
|
CONFIG_BOOTPARAM_HUNG_TASK_PANIC=1
|
|
CONFIG_PANIC_TIMEOUT=-1
|
|
CONFIG_STACKTRACE=y
|
|
CONFIG_EARLY_PRINTK=y
|
|
CONFIG_GDB_SCRIPTS=y
|
|
CONFIG_WIREGUARD=y
|
|
CONFIG_WIREGUARD_DEBUG=y
|