Customers complain abount being unable to get mail via POP3, no problems with SMTP.
Possible cause: eth0: Too much work at interrupt, IntrStatus=0x0040.
More info (kernel 2.4.31, 8139too driver as module):
PCI: Found IRQ 11 for device 00:0b.0
eth0: RealTek RTL8139 at 0xd004a000, 00:30:1b:09:34:80, IRQ 11
eth0: Identified 8139 chip type 'RTL-8139C'
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
eth0: Too much work at interrupt, IntrStatus=0x0040.