I have had the `problem', discussed extensively here and in other places,
of the message:
spurious 8259A interrupt: IRQ7
appearing on the console, at boot time regularly and at other times
occasionally. This is with 2.4.18, with APIC enabled (more details
below).
The many discussions of this issue that I've read usually conclude
that it is a harmless nuisance rather than a problem.
Twice in the past year, though, I have had the system hang at the
point in the boot-process where the system printer daemon is started
(lprng in this case). At boot time, the spurious interrupt message
appears just before this part of the process:
Oct 12 09:54:15 toraigh kernel: spurious 8259A interrupt: IRQ7.
Oct 12 09:54:16 toraigh kernel: parport0: PC-style at 0x378 [PCSPP(,...)]
Oct 12 09:54:16 toraigh kernel: parport_pc: Via 686A parallel port: io=0x378
Oct 12 09:54:16 toraigh kernel: lp0: using parport0 (polling).
Oct 12 09:54:16 toraigh kernel: lp0: compatibility mode
Since, if I understand correctly, the parallel port interrupt is
standardly at IRQ7, I was curious whether the hang might be connected
in some way with IRQ handling or with whatever lies behind the
`spurious interrupt' message.
In both cases the machine would not respond to keyboard input of any
kind and I had to hit the reset button. I had to run fsck manually to
fix inconsistencies on the root partition (/dev/sda1), but once that
was done, the system re-booted normally.
I would be very grateful indeed for any advice or pointers. I reboot
frequently (energy conservation) and the system-hang is a little
frightening.
Jim
----------------------------------------------------------------------
kernel: Linux version 2.4.18 (root@toraigh) (gcc version 2.95.4 20011002 (Debian prerelease)) #1 Sun Aug 4 18:11:44 PDT 2002
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_UP_APIC=y
# CONFIG_X86_UP_IOAPIC is not set
CONFIG_X86_LOCAL_APIC=y
Mainboard: Tyan Trinity K7 S2380
CPU: AMD Athlon K7 750MHz
SCSI HBA: Tekram DC390U2W PCI Ultra2W LVD-SCSI HBA
Boot HD: Seagate 9.1GB LVD ST39236LW
Ethernet Card: KTI KF-221TX/2
Graphics: Matrox G400 16MB SGRAM AGP
Sound card: Creative Ensoniq AudioPCI
/proc/interrupts:
CPU0
0: 831752 XT-PIC timer
1: 16493 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 222989 XT-PIC serial
10: 0 XT-PIC es1371
11: 7 XT-PIC eth0
12: 93259 XT-PIC PS/2 Mouse
15: 33434 XT-PIC sym53c8xx
NMI: 0
LOC: 831722
ERR: 158
----------------------------------------------------------------------
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This archive was generated by hypermail 2b29 : Tue Oct 15 2002 - 22:00:44 EST