very high memory usage due to kernfs_node_cache slabs

very high memory usage due to kernfs_node_cache slabs https://pms.uniontech.com/bug-view-238303.html bug环境 12uname -aLinux 0000000g-A8cUta6pu5 4.19.0-arm64-desktop-tyy-5819-ext4-slub-debug-kmemleak #5

2025-03-28

linux > kernel > mm > bugs > 238303

#Linux #git #bpf #linux #HTML

oops on down_read_trylock when inode use-after-free

oops on down_read_trylock when inode use-after-free oops log 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051[454096.703799] Unable to handle kernel NULL p

2025-03-28

linux > kernel > mm > bugs > down_read_trylock

#Linux #qemu #linux

dpu iperf soft lockup

dpu iperf soft lockup linux stop_machine 停机机制应用及一次触发 soft lockup 分析【OLK-5.10/openEuler-1.0-LTS】softlockup in rcu_momentary_dyntick_idle !2282 sdei_watchdog: Avoid exception during sdei handler dm

2025-03-28

linux > kernel > net > bugs > dpu_iperf

#Linux #git #linux

CPU Stuck During Reboot

CPU Stuck During Reboot 机型：Atlas 800I弹性裸金属 os：CentOS-7-x86_64-Everything-1810.iso bug 现场 CPU Stuck During Reboot 在grub中增加如下参数后： 1initcall_debug no_console_suspend ignore_loglevel 从下图看到reboot流程被软中

2025-03-28

linux > kernel > net > bugs > hns3

#Linux #qemu #git #linux #HTML #initramfs

ret_kni

ret_kni ret_kni_panic 1234567891011121314151617181920212223242526272829303132333435363738394041424344968.683585[1 T6407] aes_neon_bs aes_neon_blk aes_ce_blk crypto_simd cryptd aes_ce_cipher [last u

2025-03-28

linux > kernel > net > bugs > rte_kni

ovs veth peer Soft Lockup on netdev_pick_tx due to zero real_num_tx_queues When Executing ip link del veth0

ovs veth peer Soft Lockup on netdev_pick_tx due to zero real_num_tx_queues When Executing ip link del veth0 Linux 虚拟网络设备 veth-pair 详解，看这一篇就够了测试环境 1TlRZMmFEVTFRMGMxV1hrMk5YQmhkelZ3TmpJMWNEWkZOWEpYVE

2025-03-28

linux > kernel > net > bugs > ovs-veth-peer

#Linux #qemu #git #bpf #linux #HTML #namespace

dpu server2-99-101打流卡顿

dpu server2-99-101打流卡顿 WVVoU01HTklUVFpNZVRrelpETmpkV016U210Wk1uaDJaRmRSZFZreU5IWmxibWd6WVZjd2RrMVVXVEZOVkZWMldWZDRjMVl5T1hsaE1Hd3dXbGN4ZWt3eGNFdFZNRFZFVEZSRmQwMTZWVDA9 环境 TlZsaFJqWktTMXBOUkdwc2NFcHd

2025-03-28

linux > kernel > net > bugs > server2-99-101

#Linux #linux

Kernel Thread ksmd Running on PMD Isolated Cores Causes High Latency in OVS Packet Processing

Kernel Thread ksmd Running on PMD Isolated Cores Causes High Latency in OVS Packet Processing 内核线程ksmd跑到PMD核心，导致OVS报文延时大 perf sched perf sched查看调度延迟与唤醒延迟在物理机上查看隔离核心cpu 43 的时间片使用情况: 1perf sched reco

2025-03-28

linux > kernel > task > bugs > ksmd

#Linux #git #linux #HTML

stress-ng-help

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2025-03-28

linux > kernel > task > bugs > ksmd

#Linux #git #linux #strings

pt620k 1031 freezes on desktop after password entry

pt620k 1031 freezes on desktop after password entry 开机进入桌面后，桌面有显示，鼠标键盘无响应，键盘灯常亮。 https://pms.uniontech.com/bug-view-227273.html 初步分析 123cat /proc/cmdlineBOOT_IMAGE=/vmlinuz-4.19.0-arm64-desktop-kdump-

2025-03-28

linux > kernel > drivers > gpu > bugs > 227273

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