/proc/interrupts has non-printable chars in kernel 3.3.1

From: Toralf FÃrster
Date: Tue Apr 10 2012 - 13:34:36 EST


The interrrupt 47 shows (with powertop) a curious "Description" :

[@^EM-W] <interrupt>

under a stable Gentoo Linux at a Thinkpad T400 - the BIOS is the latest
available. FWIW I attached the output of the command $>cat /proc/interrupts

--
MfG/Sincerely
Toralf FÃrster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
CPU0 CPU1
0: 37165 8908 IO-APIC-edge timer
1: 875 862 IO-APIC-edge i8042
9: 16865 1071 IO-APIC-fasteoi acpi
12: 283 214 IO-APIC-edge i8042
16: 0 0 IO-APIC-fasteoi uhci_hcd:usb6
17: 0 0 IO-APIC-fasteoi uhci_hcd:usb7
18: 0 0 IO-APIC-fasteoi uhci_hcd:usb8
19: 0 0 IO-APIC-fasteoi ehci_hcd:usb2
20: 14517 14706 IO-APIC-fasteoi uhci_hcd:usb3
21: 142 36 IO-APIC-fasteoi uhci_hcd:usb4
22: 0 0 IO-APIC-fasteoi uhci_hcd:usb5
23: 403168 2 IO-APIC-fasteoi ehci_hcd:usb1
40: 0 0 PCI-MSI-edge PCIe PME
41: 0 0 PCI-MSI-edge PCIe PME
42: 0 0 PCI-MSI-edge PCIe PME
43: 0 0 PCI-MSI-edge PCIe PME
44: 1033332 61889 PCI-MSI-edge ahci
45: 65326 84792 PCI-MSI-edge eth0
46: 36422 36519 PCI-MSI-edge iwlwifi
47: 289270 468524 PCI-MSI-edge @Ç×
48: 297 413 PCI-MSI-edge snd_hda_intel
NMI: 0 0 Non-maskable interrupts
LOC: 28761071 28149530 Local timer interrupts
SPU: 0 0 Spurious interrupts
PMI: 0 0 Performance monitoring interrupts
IWI: 6 6 IRQ work interrupts
RTR: 0 0 APIC ICR read retries
RES: 259912 403208 Rescheduling interrupts
CAL: 538 528 Function call interrupts
TLB: 166554 187899 TLB shootdowns
TRM: 0 0 Thermal event interrupts
THR: 0 0 Threshold APIC interrupts
MCE: 0 0 Machine check exceptions
MCP: 72 72 Machine check polls
ERR: 0
MIS: 0