Marvell: hw perfevents: unable to count PMU IRQs
From: Paul Menzel <hidden>
Date: 2021-03-25 21:40:33
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Dear Linux folks,
On the Marvell Prestera switch, Linux 5.10.4 prints the error (with an
additional info level message) below.
[ 0.000000] Linux version 5.10.4 (robimarko@onlbuilder9)
(aarch64-linux-gnu-gcc (Debian 6.3.0-18) 6.3.0 20170516, GNU ld (GNU
Binutils for Debian) 2.28) #1 SMP PREEMPT Thu Mar 11 10:22:09 UTC 2021
[…]
[ 1.996658] hw perfevents: unable to count PMU IRQs
[ 2.001825] hw perfevents: /ap806/config-space@f0000000/pmu:
failed to register PMU devices!
# lscpu
Architecture: aarch64
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Model: 1
BogoMIPS: 50.00
L1d cache: 32K
L1i cache: 48K
L2 cache: 512K
NUMA node0 CPU(s): 0-3
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
# cat /proc/cpuinfo
processor : 0
BogoMIPS : 50.00
Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid
CPU implementer : 0x41
CPU architecture: 8
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 1
[…]
Please find the output of `dmesg` attached. How can the IRQs be counted? Kind regards, Paul
Attachments
- linux_5.10.4–messages.txt [text/plain] 55013 bytes · preview
- (unnamed) [text/plain] 176 bytes · preview