slub: unable to allocate memory on node -1 这个错误信息通常出现在Linux内核的内存分配过程中,特别是在使用SLUB(Simplified Linux Memory Allocator)分配器时。SLUB是Linux内核中用于管理内存的一种高效且灵活的分配器,它旨在优化内存分配和释放的性能。 基础概念 SLUB分配器:SLUB是Linux内
对于 SLUB: Unable to allocate memory on node -1 (gfp=0x20) 错误,可能的原因包括: 系统内存不足:如果系统内存使用已经非常紧张,没有足够的连续内存块来满足分配请求。 内存碎片化:即使系统中有足够的空闲内存,但这些内存可能分布在不同的位置,无法形成连续的内存块来满足特定的分配请求。 内核内存管理问题:...
2.2修改机器启动引导项 修改虚机启动的引导项 grub 中的cgroup.memory=nokmem,让机器启动时直接禁用 cgroup的 kmem 属性 2.2.1 先备份grub cp -a /etc/default/grub /etc/default/grub.bak 2.2.2 修改 grub,添加 “cgroup.memory=nokmem” vim /etc/default/grub GRUB_CMDLINE_LINUX="rd.lvm.lv=centos/roo...
SLUB: Unable to allocate memory on node -1 (gfp=0x20)in/var/log/messages. Docker/Kubernetes environment is showing errors regardingSLUBand memory. Environment Red Hat Enterprise Linux 7 kernel-3.10.0-1062.1.2.el7 and earlier kernels Subscriber exclusive content ...
Issue 在/var/log/messages 中出现 SLUB: Unable to allocate memory on node -1 (gfp=0x20)。 Docker/Kubernetes 环境显示有关 SLUB 和内存的错误。Environment Red Hat Enterprise Linux 7 kernel-3.10.0-1062.1.2.el7 和更早的内核 Subscriber exclusive content A Red Hat subscription provides unlimited ...
Memory and disk statistics from the load information The only negative indicator was the message, “SLUB: Unable to allocate memory on node -1” in the output of thedmesgcommand. Issue analysis We usedfuncslowerinperf-toolsto trace kernel functions that were executed slowly and adjusted the thres...
Memory and disk statistics from the load information The only negative indicator was the message, “SLUB: Unable to allocate memory on node -1” in the output of thedmesgcommand. Issue analysis We usedfuncslowerinperf-toolsto trace kernel functions that were executed slowly and adjusted the thres...
slab分配器设计的需求 在Linux内核的内存子系统中，伙伴系统无疑处于内存管理的核心地带，但是如果将内存...
k8sSLUB: Unable to allocate memory on node -1 错误 Try to Fix TwoLinuxKernel Bugs While Testing TiDB Operator in K8sWed, May 1, 2019 Wenbo Zhang Author: Wenbo Zhang (LinuxKernel Engineer of the EE t k8s 原创 mb60ffb84ea5705 2021-07-27 16:59:35 ...
kmem_cache_node // mm\slab.h/** The slab lists for all objects.*/structkmem_cache_node{// 每次操作数据时,都需要上锁spinlock_tlist_lock;// 在slab中每个node上都有一个kmem_cache_node,用来将所有属于该kmem_cache的slab串联起来。// 1、slabs_partial:链表中的slab部分object已经被使用// 2、sla...