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Message-ID: <20070525084645.GA14817@verge.net.au> Date: Fri, 25 May 2007 17:46:46 +0900 From: Horms <horms@...ge.net.au> To: Sebastien Estienne <sebastien.estienne@...il.com> Cc: wensong@...ux-vs.org, ja@....bg, nedev <netdev@...r.kernel.org> Subject: Re: [ipvs] BUG: soft lockup detected on CPU#3! [Adding netdev CC] On Tue, May 22, 2007 at 07:19:44PM +0200, Sebastien Estienne wrote: > Hello, > > I have the following bug (stacktrace in the attachment) and i think > it's related to ipvs, i reproduced it many time. > > kernel is from ubuntu: "2.6.20-15-server SMP x86_64" > on dell poweredge sc1425 > > i can trigger this bug when i adjust the weight of the real server > every 500ms using ipvsadm -R and piping the modifications > > there is 4 virtual server with 55 realserver each > > any idea? Not off hand. Though it does look some what unplesant :( I'll try my hand at trying to reproduce the problem. Is there any chance that you could try a vanilla (2.6.21) kernel to see if the problem exists there too? > > regards, > -- > Sebastien Estienne > BUG: soft lockup detected on CPU#3! > > Call Trace: > <IRQ> [softlockup_tick+249/288] softlockup_tick+0xf9/0x120 > [update_process_times+87/144] update_process_times+0x57/0x90 > [smp_local_timer_interrupt+52/96] smp_local_timer_interrupt+0x34/0x60 > [smp_apic_timer_interrupt+89/128] smp_apic_timer_interrupt+0x59/0x80 > [apic_timer_interrupt+102/112] apic_timer_interrupt+0x66/0x70 > <EOI> [_end+130125309/2130038908] :ip_vs:do_ip_vs_set_ctl+0xad1/0xbf0 > [_end+130125305/2130038908] :ip_vs:do_ip_vs_set_ctl+0xacd/0xbf0 > [nf_sockopt+233/304] nf_sockopt+0xe9/0x130 > [nf_setsockopt+22/32] nf_setsockopt+0x16/0x20 > [ip_setsockopt+118/160] ip_setsockopt+0x76/0xa0 > [sys_setsockopt+166/240] sys_setsockopt+0xa6/0xf0 > [system_call+126/131] system_call+0x7e/0x83 > > BUG: soft lockup detected on CPU#0! > > Call Trace: > <IRQ> [softlockup_tick+249/288] softlockup_tick+0xf9/0x120 > [update_process_times+87/144] update_process_times+0x57/0x90 > [smp_local_timer_interrupt+52/96] smp_local_timer_interrupt+0x34/0x60 > [smp_apic_timer_interrupt+89/128] smp_apic_timer_interrupt+0x59/0x80 > [_end+130330509/2130038908] :nf_conntrack:nf_ct_invert_tuple+0x51/0xa0 > [apic_timer_interrupt+102/112] apic_timer_interrupt+0x66/0x70 > [__read_lock_failed+5/32] __read_lock_failed+0x5/0x20 > [_read_lock+11/16] _read_lock+0xb/0x10 > [_end+130122092/2130038908] :ip_vs:ip_vs_service_get+0x20/0x1e0 > [_end+130144732/2130038908] :ip_vs:tcp_conn_schedule+0xa0/0x150 > [_end+130144313/2130038908] :ip_vs:tcp_conn_in_get+0x7d/0xc0 > [_end+130111414/2130038908] :ip_vs:ip_vs_in+0xca/0x270 > [nf_iterate+92/160] nf_iterate+0x5c/0xa0 > [ip_local_deliver_finish+0/528] ip_local_deliver_finish+0x0/0x210 > [nf_hook_slow+113/240] nf_hook_slow+0x71/0xf0 > [ip_local_deliver_finish+0/528] ip_local_deliver_finish+0x0/0x210 > [ip_local_deliver+111/656] ip_local_deliver+0x6f/0x290 > [ip_rcv+1246/1360] ip_rcv+0x4de/0x550 > [netif_receive_skb+623/800] netif_receive_skb+0x26f/0x320 > [_end+129188049/2130038908] :e1000:e1000_clean_rx_irq+0x445/0x520 > [_end+129183152/2130038908] :e1000:e1000_clean+0x84/0x2b0 > [net_rx_action+186/512] net_rx_action+0xba/0x200 > [__do_softirq+95/208] __do_softirq+0x5f/0xd0 > [call_softirq+28/40] call_softirq+0x1c/0x28 > [do_softirq+44/144] do_softirq+0x2c/0x90 > [do_IRQ+217/256] do_IRQ+0xd9/0x100 > [mwait_idle+0/80] mwait_idle+0x0/0x50 > [ret_from_intr+0/10] ret_from_intr+0x0/0xa > <EOI> [tcp_poll+0/336] tcp_poll+0x0/0x150 > [mwait_idle+66/80] mwait_idle+0x42/0x50 > [cpu_idle+155/208] cpu_idle+0x9b/0xd0 > [start_kernel+586/608] start_kernel+0x24a/0x260 > [x86_64_start_kernel+358/368] _sinittext+0x166/0x170 > -- Horms H: http://www.vergenet.net/~horms/ W: http://www.valinux.co.jp/en/ - 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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