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Date: Thu, 30 Aug 2007 13:09:11 +0400 From: Badalian Vyacheslav <slavon@...telecom.ru> To: Jarek Poplawski <jarkao2@...pl> CC: netdev@...r.kernel.org Subject: Re: Tc bug (kernel crash) more info Jarek Poplawski пишет: > On Thu, Aug 30, 2007 at 08:31:10AM +0200, Jarek Poplawski wrote: > >> On Thu, Aug 30, 2007 at 12:16:32AM +0400, slavon@...telecom.ru wrote: >> > ... > >>> PS. And also have we have strange bug in another computer (2.6.22-r5). >>> Have computer XEON_CPUx2 (4 CPU) >>> >>> after boot have CPU0 and CPU3 SI = ~50% >>> after some time CPU0 SI = 0% and ksoftirqd/2 process have 100% cpu usage! >>> nat-new ~ # cat /proc/interrupts >>> CPU0 CPU1 CPU2 CPU3 >>> 0: 403 0 0 0 IO-APIC-edge timer >>> >> ... >> >>> LOC: 89312505 89314019 89310139 89313972 >>> ERR: 0 >>> MIS: 0 >>> >>> changes only LOC interrupts! >>> >>> Maybe its info intresting for you. =) >>> >> Yes. It seems something loops or breaks with disabled interrupts. If >> > > On the other hand disabling local interrupts shouldn't be enough here, > so it's really strange... Did you get this remotely? Are you sure LOC > only? (Anyway this 2.6.23-rc4 should be interesting.) > > Jarek P. > > Only LOC changes... icmp answer = 50-70ms... after 1-2 hours traffic level is down and SI on CPU0 and CPU2 change to above 50%. ksoftirqd free CPU usage. I have this bug 3-4 times in week. If you need info what i can see only in bug still processing - i may try get this info for you. maybe help: 1U server INTEL, mb se7501w2 nat-new ~ # lspci 00:00.0 Host bridge: Intel Corporation E7501 Memory Controller Hub (rev 01) 00:00.1 Class ff00: Intel Corporation E7500/E7501 Host RASUM Controller (rev 01) 00:03.0 PCI bridge: Intel Corporation E7500/E7501 Hub Interface C PCI-to-PCI Bridge (rev 01) 00:03.1 Class ff00: Intel Corporation E7500/E7501 Hub Interface C RASUM Controller (rev 01) 00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB Controller #2 (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 42) 00:1f.0 ISA bridge: Intel Corporation 82801CA LPC Interface Controller (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801CA Ultra ATA Storage Controller (rev 02) 00:1f.3 SMBus: Intel Corporation 82801CA/CAM SMBus Controller (rev 02) 01:0c.0 VGA compatible controller: ATI Technologies Inc Rage XL (rev 27) 02:1c.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04) 02:1d.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04) 02:1e.0 PIC: Intel Corporation 82870P2 P64H2 I/OxAPIC (rev 04) 02:1f.0 PCI bridge: Intel Corporation 82870P2 P64H2 Hub PCI Bridge (rev 04) 03:07.0 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01) 03:07.1 Ethernet controller: Intel Corporation 82546EB Gigabit Ethernet Controller (Copper) (rev 01) 04:08.0 RAID bus controller: Intel Corporation RAID Controller - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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