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possible lockdep crash (was Re: kernel panic, ip_route_input, 2.6.25-rc6-git2)
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From:
David Miller <davem@...>
To: <denys@...>
Cc: <netdev@...>, <linux-kernel@...>
Subject:
possible lockdep crash (was Re: kernel panic, ip_route_input, 2.6.25-rc6-git2)
Date: Friday, March 21, 2008 - 6:35 am
From: "Denys Fedoryshchenko" <denys@visp.net.lb> Date: Fri, 21 Mar 2008 11:33:04 +0200
quoted text
> Hi, after trying to boot 2.6.25-rc6-git2 on loaded router, got kernel panic > almost immediately (i am able to ssh, but router panic's in next 10-30 > seconds) > > Here is netconsole output. It crashes also without netconsole (cause i heard > patch not in stable yet, i tried to not use netconsole to avoid this bug).
The IP may point to ip_route_input(), but the entire top of the backtrace is in the lockdep code. Which makes me quite suspicious.
quoted text
> Mar 21 11:26:46 ROUTER [ 12.125124] BUG: unable to handle kernel > Mar 21 11:26:46 ROUTER paging request > Mar 21 11:26:46 ROUTER at c013d19a > Mar 21 11:26:46 ROUTER [ 12.125181] IP: > Mar 21 11:26:46 ROUTER [<c0285798>] ip_route_input+0xa70/0xe56 > Mar 21 11:26:46 ROUTER [ 12.125181] Oops: 0003 [#1] > Mar 21 11:26:46 ROUTER SMP > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] Modules linked in: > Mar 21 11:26:46 ROUTER softdog > Mar 21 11:26:46 ROUTER nf_nat_pptp > Mar 21 11:26:46 ROUTER nf_nat_proto_gre > Mar 21 11:26:46 ROUTER nf_conntrack_pptp > Mar 21 11:26:46 ROUTER nf_conntrack_proto_gre > Mar 21 11:26:46 ROUTER netconsole > Mar 21 11:26:46 ROUTER configfs > Mar 21 11:26:46 ROUTER xt_tcpudp > Mar 21 11:26:46 ROUTER ipt_TTL > Mar 21 11:26:46 ROUTER ipt_ttl > Mar 21 11:26:46 ROUTER xt_NOTRACK > Mar 21 11:26:46 ROUTER iptable_raw > Mar 21 11:26:46 ROUTER iptable_mangle > Mar 21 11:26:46 ROUTER ifb > Mar 21 11:26:46 ROUTER e1000e > Mar 21 11:26:46 ROUTER em_nbyte > Mar 21 11:26:46 ROUTER cls_tcindex > Mar 21 11:26:46 ROUTER act_gact > Mar 21 11:26:46 ROUTER cls_rsvp > Mar 21 11:26:46 ROUTER sch_htb > Mar 21 11:26:46 ROUTER cls_fw > Mar 21 11:26:46 ROUTER act_mirred > Mar 21 11:26:46 ROUTER em_u32 > Mar 21 11:26:46 ROUTER sch_red > Mar 21 11:26:46 ROUTER sch_sfq > Mar 21 11:26:46 ROUTER sch_tbf > Mar 21 11:26:46 ROUTER sch_teql > Mar 21 11:26:46 ROUTER cls_basic > Mar 21 11:26:46 ROUTER act_police > Mar 21 11:26:46 ROUTER sch_gred > Mar 21 11:26:46 ROUTER act_pedit > Mar 21 11:26:46 ROUTER sch_hfsc > Mar 21 11:26:46 ROUTER cls_rsvp6 > Mar 21 11:26:46 ROUTER sch_ingress > Mar 21 11:26:46 ROUTER em_meta > Mar 21 11:26:46 ROUTER em_text > Mar 21 11:26:46 ROUTER act_ipt > Mar 21 11:26:46 ROUTER sch_dsmark > Mar 21 11:26:46 ROUTER sch_prio > Mar 21 11:26:46 ROUTER sch_netem > Mar 21 11:26:46 ROUTER act_simple > Mar 21 11:26:46 ROUTER cls_u32 > Mar 21 11:26:46 ROUTER em_cmp > Mar 21 11:26:46 ROUTER sch_cbq > Mar 21 11:26:46 ROUTER cls_route > Mar 21 11:26:46 ROUTER xt_TCPMSS > Mar 21 11:26:46 ROUTER iptable_nat > Mar 21 11:26:46 ROUTER nf_conntrack_ipv4 > Mar 21 11:26:46 ROUTER ipt_LOG > Mar 21 11:26:46 ROUTER ipt_MASQUERADE > Mar 21 11:26:46 ROUTER ipt_REDIRECT > Mar 21 11:26:46 ROUTER nf_nat > Mar 21 11:26:46 ROUTER nf_conntrack > Mar 21 11:26:46 ROUTER nfnetlink > Mar 21 11:26:46 ROUTER iptable_filter > Mar 21 11:26:46 ROUTER ip_tables > Mar 21 11:26:46 ROUTER x_tables > Mar 21 11:26:46 ROUTER 8021q > Mar 21 11:26:46 ROUTER tun > Mar 21 11:26:46 ROUTER tulip > Mar 21 11:26:46 ROUTER r8169 > Mar 21 11:26:46 ROUTER sky2 > Mar 21 11:26:46 ROUTER via_velocity > Mar 21 11:26:46 ROUTER via_rhine > Mar 21 11:26:46 ROUTER sis900 > Mar 21 11:26:46 ROUTER ne2k_pci > Mar 21 11:26:46 ROUTER 8390 > Mar 21 11:26:46 ROUTER skge > Mar 21 11:26:46 ROUTER tg3 > Mar 21 11:26:46 ROUTER 8139too > Mar 21 11:26:46 ROUTER e1000 > Mar 21 11:26:46 ROUTER e100 > Mar 21 11:26:46 ROUTER usb_storage > Mar 21 11:26:46 ROUTER mtdblock > Mar 21 11:26:46 ROUTER mtd_blkdevs > Mar 21 11:26:46 ROUTER usbhid > Mar 21 11:26:46 ROUTER uhci_hcd > Mar 21 11:26:46 ROUTER ehci_hcd > Mar 21 11:26:46 ROUTER ohci_hcd > Mar 21 11:26:46 ROUTER usbcore > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] > Mar 21 11:26:46 ROUTER [ 12.125181] Pid: 0, comm: swapper Not tainted > (2.6.25-rc6-git2-build-0024 #8) > Mar 21 11:26:46 ROUTER [ 12.125181] EIP: 0060:[<c0285798>] EFLAGS: 00010286 > CPU: 0 > Mar 21 11:26:46 ROUTER [ 12.125181] EIP is at ip_route_input+0xa70/0xe56 > Mar 21 11:26:46 ROUTER [ 12.125181] EAX: c0999200 EBX: 000000c2 ECX: > c038ea2c EDX: c013d182 > Mar 21 11:26:46 ROUTER [ 12.125181] ESI: c099ff04 EDI: c099ff04 EBP: > c099ff30 ESP: c099fe94 > Mar 21 11:26:46 ROUTER [ 12.125181] DS: 007b ES: 007b FS: 00d8 GS: 0000 > SS: 0068 > Mar 21 11:26:46 ROUTER [ 12.125181] Process swapper (pid: 0, ti=c099f000 > task=c038e460 task.ti=c03b9000) > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] Stack: > Mar 21 11:26:46 ROUTER c099fec8 > Mar 21 11:26:46 ROUTER be9a92c2 > Mar 21 11:26:46 ROUTER de0aa8c0 > Mar 21 11:26:46 ROUTER f6fc6cc0 > Mar 21 11:26:46 ROUTER c013bdc3 > Mar 21 11:26:46 ROUTER 00000001 > Mar 21 11:26:46 ROUTER c038e460 > Mar 21 11:26:46 ROUTER 00000001 > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] > Mar 21 11:26:46 ROUTER ffffff8f > Mar 21 11:26:46 ROUTER 0099fec8 > Mar 21 11:26:46 ROUTER f7c3bc00 > Mar 21 11:26:46 ROUTER c0be25a0 > Mar 21 11:26:46 ROUTER 0038e460 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000003 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] > Mar 21 11:26:46 ROUTER de0aa8c0 > Mar 21 11:26:46 ROUTER be9a92c2 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER 00000000 > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] Call Trace: > Mar 21 11:26:46 ROUTER [ 12.125181] [<c013bdc3>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER mark_held_locks+0x41/0x5c > Mar 21 11:26:46 ROUTER [ 12.125181] [<c013d182>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER lock_release+0x16b/0x172 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c02825e8>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER nf_hook_slow+0xa1/0xc1 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c02871a0>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER ip_rcv_finish+0x2c/0x2f4 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c028789b>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER ip_rcv+0x202/0x22c > Mar 21 11:26:46 ROUTER [ 12.125181] [<c026c809>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER netif_receive_skb+0x38d/0x3ec > Mar 21 11:26:46 ROUTER [ 12.125181] [<c026ee8b>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER process_backlog+0x6c/0xd3 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c026ee96>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER process_backlog+0x77/0xd3 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c026e977>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER net_rx_action+0xb3/0x1d8 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c0125846>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER __do_softirq+0x6f/0xe9 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c01060ab>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER do_softirq+0x5e/0xa8 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c0146413>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER handle_fasteoi_irq+0x0/0xb6 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c01257a4>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER irq_exit+0x44/0x77 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c01061af>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER do_IRQ+0xba/0xd3 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c010438e>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER common_interrupt+0x2e/0x34 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c01300d8>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER sys_clock_nanosleep+0x19/0xb0 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c01021ba>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER mwait_idle_with_hints+0x3a/0x3e > Mar 21 11:26:46 ROUTER [ 12.125181] [<c0102365>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER mwait_idle+0x0/0x14 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c0102377>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER mwait_idle+0x12/0x14 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c010266d>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER cpu_idle+0x8a/0xa6 > Mar 21 11:26:46 ROUTER [ 12.125181] [<c02b86c5>] > Mar 21 11:26:46 ROUTER ? > Mar 21 11:26:46 ROUTER rest_init+0x49/0x4b > Mar 21 11:26:46 ROUTER [ 12.125181] ======================= > Mar 21 11:26:46 ROUTER [ 12.125181] Code: > Mar 21 11:26:46 ROUTER 80 > Mar 21 11:26:46 ROUTER 01 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 8b > Mar 21 11:26:46 ROUTER 55 > Mar 21 11:26:46 ROUTER 8c > Mar 21 11:26:46 ROUTER f0 > Mar 21 11:26:46 ROUTER ff > Mar 21 11:26:46 ROUTER 4a > Mar 21 11:26:46 ROUTER 04 > Mar 21 11:26:46 ROUTER 0f > Mar 21 11:26:46 ROUTER 94 > Mar 21 11:26:46 ROUTER c0 > Mar 21 11:26:46 ROUTER 84 > Mar 21 11:26:46 ROUTER c0 > Mar 21 11:26:46 ROUTER 74 > Mar 21 11:26:46 ROUTER 07 > Mar 21 11:26:46 ROUTER 89 > Mar 21 11:26:46 ROUTER d0 > Mar 21 11:26:46 ROUTER e8 > Mar 21 11:26:46 ROUTER df > Mar 21 11:26:46 ROUTER 02 > Mar 21 11:26:46 ROUTER 02 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 83 > Mar 21 11:26:46 ROUTER 7d > Mar 21 11:26:46 ROUTER 80 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 0f > Mar 21 11:26:46 ROUTER 84 > Mar 21 11:26:46 ROUTER e2 > Mar 21 11:26:46 ROUTER 03 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 8b > Mar 21 11:26:46 ROUTER 55 > Mar 21 11:26:46 ROUTER d8 > Mar 21 11:26:46 ROUTER 85 > Mar 21 11:26:46 ROUTER d2 > Mar 21 11:26:46 ROUTER 74 > Mar 21 11:26:46 ROUTER 12 > Mar 21 11:26:46 ROUTER unparseable log message: "<f0> " > Mar 21 11:26:46 ROUTER ff > Mar 21 11:26:46 ROUTER 4a > Mar 21 11:26:46 ROUTER 18 > Mar 21 11:26:46 ROUTER 0f > Mar 21 11:26:46 ROUTER 94 > Mar 21 11:26:46 ROUTER c0 > Mar 21 11:26:46 ROUTER 84 > Mar 21 11:26:46 ROUTER c0 > Mar 21 11:26:46 ROUTER 74 > Mar 21 11:26:46 ROUTER 07 > Mar 21 11:26:46 ROUTER 89 > Mar 21 11:26:46 ROUTER d0 > Mar 21 11:26:46 ROUTER e8 > Mar 21 11:26:46 ROUTER cf > Mar 21 11:26:46 ROUTER 7c > Mar 21 11:26:46 ROUTER 02 > Mar 21 11:26:46 ROUTER 00 > Mar 21 11:26:46 ROUTER 8b > Mar 21 11:26:46 ROUTER 55 > Mar 21 11:26:46 ROUTER dc > Mar 21 11:26:46 ROUTER > Mar 21 11:26:46 ROUTER [ 12.125181] EIP: [<c0285798>] > Mar 21 11:26:46 ROUTER ip_route_input+0xa70/0xe56 > Mar 21 11:26:46 ROUTER SS:ESP 0068:c099fe94 > Mar 21 11:26:46 ROUTER [ 12.125181] Kernel panic - not syncing: Fatal > exception in interrupt > Mar 21 11:26:46 ROUTER [ 12.125181] Rebooting in 1 seconds.. > > > > -- > Denys Fedoryshchenko > Technical Manager > 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Messages in current thread:
possible lockdep crash (was Re: kernel panic, ip_route_input...
, David Miller
, (Fri Mar 21, 6:35 am)
Re: possible lockdep crash (was Re: kernel panic, ip_route_i...
, Denys Fedoryshchenko
, (Fri Mar 21, 6:59 am)
Re: possible lockdep crash (was Re: kernel panic, ip_route_i...
, Denys Fedoryshchenko
, (Fri Mar 21, 6:54 am)
Re: possible lockdep crash
, David Miller
, (Fri Mar 21, 7:04 am)
Re: possible lockdep crash
, Denys Fedoryshchenko
, (Fri Mar 21, 8:46 pm)
Re: possible lockdep crash
, Denys Fedoryshchenko
, (Fri Mar 21, 11:23 am)
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