Hi, > Just updated a HP Proliant DL-140 (no psp installed, dual cpu and 1G > memory, Linux software raid (mirror) ) from 5.2 to 5.3, and after a > reboot to activate kernel 2.6.18-128.el5 the system is very sluggish. > Stopping services like smb and dhcpd does not improve system > performance at all. > Running only services like ssh and syslog, the top command still shows > every few seconds 100% CPU regarding SI (software interrupts if > correct?). > Rebooting the system to activate previous (5.2) kernel 2.6.18- > 92.1.22.el5 solves the sluggish behavior and also does not show "CPU > 100%si" . > > Any idea what to check or adjust? Update: after some more Googling found that SI can be related with device drivers so I disabled one of the NIC's. Now the system is running smooth with kernel 2.6.18-128.el5 . The disabled NIC is connected to a 1G snifpoint and a lot of traffic is passing by, never a problem before but it seems this kernel version has.
NIC: Broadcom Corporation NetXtreme BCM5704 Gigabit Ethernet Module used : Broadcom Tigon3 ethernet driver 3.93, /lib/modules/2.6.18-128.el5/kernel/drivers/net/tg3.ko Cheers, Andre
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