2.3.99-preX, Duplicated entries in /proc/irq

From: kumon@flab.fujitsu.co.jp
Date: Sun May 07 2000 - 01:29:27 EST


The proc directry /proc/irq contains duplicated name entries.
I checked on pre3, pre5 and pre7-classzone24.

Example:
% ls /proc/irq
0/ 10/ 11/ 12/ 12/ 12/ 14/ 15/ 3/ 4/ 4/ 5/ 6/ 8/ prof_cpu_mask
1/ 10/ 12/ 12/ 12/ 12/ 14/ 2/ 3/ 4/ 5/ 6/ 6/ 9/
1/ 10/ 12/ 12/ 12/ 13/ 15/ 3/ 3/ 4/ 5/ 6/ 7/ 9/

% uname -a
Linux pen2 2.3.99-pre7 #12 SMP Sun May 7 15:08:37 JST 2000 i686 unknown

Directories are registered multiple times, every-time new modules are
found.

By placing printk() at the directory registration
(register_irq_proc(): i386/kernel/irq.c), multiple registration are
actually observed, those are marked at "<====".

syslog:
        boot in progress
May 7 15:11:11 pen2 kernel: mtrr: your CPUs had inconsistent fixed MTRR settings
May 7 15:11:11 pen2 kernel: mtrr: probably your BIOS does not setup all CPUs
May 7 15:11:11 pen2 kernel: Create 0 entry in irq/
May 7 15:11:11 pen2 kernel: Create 1 entry in irq/
May 7 15:11:11 pen2 kernel: Create 2 entry in irq/
May 7 15:11:11 pen2 kernel: Create 3 entry in irq/
May 7 15:11:11 pen2 kernel: Create 4 entry in irq/
May 7 15:11:11 pen2 kernel: Create 5 entry in irq/
May 7 15:11:11 pen2 kernel: Create 6 entry in irq/
May 7 15:11:11 pen2 kernel: Create 7 entry in irq/
May 7 15:11:11 pen2 kernel: Create 8 entry in irq/
May 7 15:11:11 pen2 kernel: Create 9 entry in irq/
May 7 15:11:11 pen2 kernel: Create 10 entry in irq/
May 7 15:11:11 pen2 kernel: Create 11 entry in irq/
May 7 15:11:11 pen2 kernel: Create 12 entry in irq/
May 7 15:11:11 pen2 kernel: Create 13 entry in irq/
May 7 15:11:11 pen2 kernel: Create 14 entry in irq/
May 7 15:11:11 pen2 kernel: Create 15 entry in irq/
May 7 15:11:11 pen2 kernel: PCI: PCI BIOS revision 2.10 entry at 0xfb6e0, last bus=1
        <omitted>
May 7 15:11:11 pen2 kernel: usb-uhci.c: USB UHCI at I/O 0xd000, IRQ 9
May 7 15:11:11 pen2 kernel: usb-uhci.c: Detected 2 ports
May 7 15:11:11 pen2 kernel: usb.c: new USB bus registered, assigned bus number 1
May 7 15:11:11 pen2 kernel: Create 9 entry in irq/ <=====
May 7 15:11:11 pen2 kernel: usb.c: USB new device connect, assigned device number 1
        <omitted>
May 7 15:11:11 pen2 kernel: ACPI: "ABIT" found at 0x000f7550
May 7 15:11:11 pen2 kernel: Create 9 entry in irq/ <====
May 7 15:11:11 pen2 kernel: apm: BIOS version 1.2 Flags 0x07 (Driver version 1.13)
May 7 15:11:11 pen2 kernel: apm: disabled - APM is not SMP safe.
May 7 15:11:11 pen2 kernel: Starting kswapd v1.6
May 7 15:11:11 pen2 kernel: Create 1 entry in irq/ <====
May 7 15:11:11 pen2 kernel: pty: 256 Unix98 ptys configured
        continue booting

# Is the irq_affinity available?

--
Computer Systems Laboratory, Fujitsu Labs.
kumon@flab.fujitsu.co.jp

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