New network changes causes interrupt storm on QEMU with shared interrupt

[tqh]

Running recent nightlies in QEMU/KVM hangs the mouse and causes one cpu core to run 100%.

KDL show Ipro driver processing around 1 million ints at point when installer shows up. All problems go away if I disable USB in QEMU launch args.

KDL Ints output:

int  11, enabled 2, handled   720013, unhandled        0
   ipro1000:iflib_fast_intr_ctx               (0xffffffff85c33340), data 0xffffffff829ed098, handled   720006
   uhci:_ZN4UHCI16InterruptHandlerEPv         (0xffffffff81f52a10), data 0xffffffff82979600, handled        7

QEMU/KVM command line:

sudo qemu-system-x86_64 --cpu host -smp 4 -k sv -m 2048 -enable-kvm -vga vmware -no-reboot -usb -usbdevice tablet -serial file:out.txt -cdrom generated/haiku-nightly-anyboot.iso -drive file=/dev/sdb,index=0,media=disk,format=raw -boot d

Verified problem exist with downloaded nightly hrev52718

Last known good revision hrev52707

[tqh]

Without usb enabled ipro had six interrupts.

[tqh]

Probably relevant IRQ-routing info with USB enabled:

found io-apic with address 0xfec00000, global interrupt base 0, apic-id 0
mapping io-apic 0 at physical address 0xfec00000
io-apic 0 has range 0-23, 24 entries, version 0x00170011, apic-id 0
setting ACPI interrupt model to APIC
failed to put ACPI into APIC interrupt model, ignoring
IRQ routing table with 3 entries
address 0x1ffff; pin 0; source 0xffffffff82a1d998 0; pci 0:1 pin 1 func mask 8; bios irq: 9; gsi 9; config 0x0a
address 0x1ffff; pin 3; source 0xffffffff82a1db18 0; pci 0:1 pin 4 func mask 4; bios irq: 11; gsi 11; config 0x0a
address 0x3ffff; pin 0; source 0xffffffff82a1dc98 0; pci 0:3 pin 1 func mask 1; bios irq: 11; gsi 11; config 0x0a
found interrupt override for bus 0, source irq 0, global irq 2, flags 0x00000000
found interrupt override for bus 0, source irq 5, global irq 5, flags 0x0000000d
found interrupt override for bus 0, source irq 9, global irq 9, flags 0x0000000d
found interrupt override for bus 0, source irq 10, global irq 10, flags 0x0000000d
found interrupt override for bus 0, source irq 11, global irq 11, flags 0x0000000d
free_io_interrupt_vectors: freeing 16 vectors starting from 0
reserve_io_interrupt_vectors: reserved 24 vectors starting from 0

[waddlesplash]

Please retest after hrev52723.

[tqh]

Still the same with hrev52724

[waddlesplash]

Fixed in hrev52725.

[nielx]

Assign tickets with status=closed and resolution=fixed within the R1/beta2 development window to the R1/beta2 Milestone