2.4.22-pre5 interrupts problem ?
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Quoted 15 lines · Ruben Puettmann
cat
/proc/interrupts
CPU00: 655923 IO-APIC-edge timer 1: 22221 IO-APIC-edge keyboard 2: 0 XT-PIC cascade 8: 4 IO-APIC-edge rtc 9: 0 IO-APIC-level acpi 14: 33084 IO-APIC-edge ide0 15: 3 IO-APIC-edge ide1 18: 690660829 IO-APIC-level aic7xxx, es1371 19: 686559334 IO-APIC-level bttv, eth0 20: 683012480 IO-APIC-level ehci_hcd, usb-ohci 22: 115606 IO-APIC-level usb-ohci NMI: 0 LOC: 655895 ERR: 0 MIS: 0
Hi, i am seeing the same behaviour of the Epox 8RDA3+ on 2.4.22-pre5-vanilla.
Please note that only level-APICs seem to be affected.
We don't see these high interrupt rates anymore when APIC is disabled in the BIOS.
I also noted that the POST LED on the board flips between 94 and 96 which it does not under WinXP where FF is displayed.
I have also a SATA Drive attached to the internal controller and under pre5 the box freezes if i do any serious amount of disk thoughput - for example using bonnie++. Maybe this is somehow related to this interrupt problem. I experience freezes with current 2.5 kernels too.
WinXP is installed on the SATA Drive and rock stable, so this actually seems not to be a hardware problem per se.
Quoted 7 lines
vmtstat 2
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 0 680320 35816 278576 0 0 30 66 1995 313 38 4 58 0 0 0 0 680316 35816 278576 0 0 0 0 322131 7 0 0 100 0Is this normal?
If it were i would be desperate to hear why for my most frequented nameserver (>300queries/s) hardly even does 1000 interrupts/s. ;)
waves,
Stefan