On 8/24/21 11:53 PM, Jiri Slaby wrote:
On 24. 08. 21, 17:42, Peter Suetterlin wrote:
Hi,
I just upgraded my laptop (Lenovo T470p) to latest TW 20210820, including kernel 5.13.12.
Now I have a permanent kworker process running at full load:
27615 root 20 0 0 0 0 R 99.00 0.000 5:49.23 kworker/u16:3+events_unbound
I encountered this issue last week and again today. 11663 root 20 0 0 0 0 R 100.0 0.000 20:41.19 kworker/u16:0+events_unbound
Is there a way to find out what exactly it is related with?
Hi,
what's the output of: cat /proc/27615/stack
Nothing # cat /proc/11663/stack # Maybe some other info in procfs will be helpful # cat /proc/11663/stat 11663 (kworker/u16:0+events_unbound) R 2 0 0 0 -1 69238880 0 0 0 0 0 98281 0 0 20 0 1 0 11727122 0 0 18446744073709551615 0 0 0 0 0 0 0 2147483647 0 0 0 0 17 6 0 0 175 0 0 0 0 0 0 0 0 0 0 # cat /proc/11663/statm 0 0 0 0 0 0 0 # cat /proc/11663/syscall running # cat /proc/11663/status Name: kworker/u16:0+events_unbound Umask: 0000 State: R (running) Tgid: 11663 Ngid: 0 Pid: 11663 PPid: 2 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 64 Groups: NStgid: 11663 NSpid: 11663 NSpgid: 0 NSsid: 0 Threads: 1 SigQ: 0/127677 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000000000 SigIgn: ffffffffffffffff SigCgt: 0000000000000000 CapInh: 0000000000000000 CapPrm: 000001ffffffffff CapEff: 000001ffffffffff CapBnd: 000001ffffffffff CapAmb: 0000000000000000 NoNewPrivs: 0 Seccomp: 0 Seccomp_filters: 0 Speculation_Store_Bypass: thread vulnerable SpeculationIndirectBranch: conditional enabled Cpus_allowed: ff Cpus_allowed_list: 0-7 Mems_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001 Mems_allowed_list: 0 voluntary_ctxt_switches: 12690 nonvoluntary_ctxt_switches: 11059 # cat /proc/11663/wchan 0 Time to reboot before something becomes toast... Jim