get you most of the way there: 1) reboot on guest kernel panic, and oops=panic. To test for the first, examine /proc/sys/kernel/panic and make sure it's not zero. Also, enabling "oops=panic" might be worth doing (if that's not enabled, then the guest kernel "oops" encountered ...
/proc/sys/kernel/:包含了一些与内核相关的参数,如core_pattern(生成core文件的模式)、core_uses_pid(是否在core文件名中包含进程ID)、panic(系统发生严重错误时的行为)等。 /proc/sys/net/:包含了一些与网络相关的参数,如ipv4/ipv6/icmp等。 /proc/sys/vm/:包含了一些与虚拟内存管理相关的参数,如swappiness(...
/proc/sys/kernel/ctrl-alt-del /proc/sys/kernel/dmesg_restrict /proc/sys/kernel/domainname /proc/sys/kernel/hostname /proc/sys/kernel/hotplug /proc/sys/kernel/htab-reclaim /proc/sys/kernel/kptr_restrict /proc/sys/kernel/l2cr /proc/sys/kernel/modprobe /proc/sys/kernel/modules_disabled /pro...
net.ipv4.conf.default.accept_source_route = 0 kernel.sysrq = 0 kernel.core_uses_pid = 1 net.ipv4.tcp_syncookies = 1 kernel.msgmnb = 65536 kernel.msgmax = 65536 kernel.shmmax = 68719476736 kernel.shmall = 4294967296 vm.min_free_kbytes = 65536 kernel.panic_on_oops = 1 kernel.panic = ...
[root@localhost ~]# ls /proc/sys/kernel acct hotplug panic sem cad_pid modprobe panic_on_oops shmall cap-bound msgmax pid_max shmmax core_pattern msgmnb print-fatal-signals shmmni core_uses_pid msgmni printk sysrq ctrl-alt-del ngroups_max printk_ratelimit tainted ...
/proc/sys/vm/panic_on_oom设置为1时,在OOM killer 允许时可以不发送进程信号,只是内核产生重大故障。如果oom_kill_allocation_task设置除0以外的值,则促使oom killer运行的进程自身将接收到信号。 oom_dump_tasks设置除0以外的值时,在oom killer运行时的输出中会增加进程的列表信息。可以使用dmesg或syslog来确认。
46、 inode-nrlease-break-timeleases-enablebinfmt_misc file-maxinode-state mqueueoverflowgid overflowuid quotarootlocalhost # is /proc/sys/kernelaccthotplugpanicsemcad_pidmodprobepanic_on_oopsshmallcap-boundmsgmaxpid_maxshmmaxcore_pattemmsgmnbprint-fatal-signalsshmmnicore_uses_pidmsgmniprintksysrqctrl-al...
Issue During operation, anecho 1 > /proc/sys/vm/compact_memorywas initiated on the system and resulted in a kernel panic. Vmcore analysis shows the following backtrace: Raw PID: 5034 TASK: ffff8800371e2ae0 CPU: 1 COMMAND: "bash" #0 [ffff88007cfb7960] machine_kexec at ffffffff81035b7b ...
kernel.panic_on_oops 0に設定すると、カーネルでoopsまたはBUG状態を検出した場合でも、システムは操作を続行しようとします。1 (デフォルト)に設定した場合は、パニックが発生する前にカーネル・ログ・デーモンklogdにoops出力を記録する時間を持たせるため、数秒遅延が発生します。 OC...
[root@localhost ~]# ls /proc/sys/kernel acct hotplug panic sem cad_pid modprobe panic_on_oops shmall cap-bound msgmax pid_max shmmax core_pattern msgmnb print-fatal-signals shmmni core_uses_pid msgmni printk sysrq ctrl-alt-del ngroups_max printk_ratelimit tainted domainname osrelease printk...