On 17 September 2015 at 01:47, Sergey Senozhatsky <sergey.senozhatsky.w...@gmail.com> wrote: > On (09/16/15 07:07), David Ahern wrote: >> Hi Sergey: >> > > Hi, > > sorry for long reply. Baremetal. So grabbing the backtrace is > a bit complicated. But it looks very close to what Richard Alpe > has posted.
Hi, in this boot log you will find a backtrace: https://lava.collabora.co.uk/scheduler/job/67404/log_file (ip_route_input_noref) from [] (ip_rcv+0x39c/0x6e8) (ip_rcv) from [] (__netif_receive_skb_core+0x5ec/0x7c0) (__netif_receive_skb_core) from [] (netif_receive_skb_internal+0x34/0xa4) (netif_receive_skb_internal) from [] (napi_gro_receive+0x78/0xa4) (napi_gro_receive) from [] (rtl8169_poll+0x2dc/0x5dc) (rtl8169_poll) from [] (net_rx_action+0x1d4/0x2d0) (net_rx_action) from [] (__do_softirq+0xfc/0x214) (__do_softirq) from [] (irq_exit+0xb0/0x118) (irq_exit) from [] (__handle_domain_irq+0x60/0xb4) (__handle_domain_irq) from [] (gic_handle_irq+0x54/0x94) (gic_handle_irq) from [] (__irq_svc+0x54/0x70) This is on a jetson-tk1 booting a multi_v7_defconfig kernel. I expect this issue to appear in today's kernelci.org boots. I don't see this or any other boot error after applying David's patch. Regards, Tomeu > in IRQ > > RIP is at ip_route_input_noref > > [ 0.877597] [<ffffffff8158e13c>] arp_process+0x39c/0x690 > [ 0.877597] [<ffffffff8158e57e>] arp_rcv+0x13e/0x170 > > > -ss > > >> Is this with KVM or baremetal? >> >> -----8<----- >> thanks for the analysis >> >> >>addr2line -e vmlinux -i 0xffffffff8146c0b1 >> >>net/ipv4/route.c:1815 >> >>net/ipv4/route.c:1905 >> >> >> >> >> >>which seems to be this line ip_route_input_noref()->ip_route_input_slow(): >> >>... >> >>1813 rth->rt_is_input = 1; >> >>1814 if (res.table) >> >>1815 rth->rt_table_id = res.table->tb_id; >> >>1816 >> >>... >> >> >> >> >> >>added by b7503e0cdb5dbec5d201aa69d8888c14679b5ae8 >> >> >> >> net: Add FIB table id to rtable >> >> >> >> Add the FIB table id to rtable to make the information available for >> >> IPv4 as it is for IPv6. >> >> >> >> >> >> -ss >> >> Hi Richard: >> >> >I to get an Oops in ip_route_input_noref(). It happens occasionally during >> >bootup. >> >KVM environment using virtio driver. Let me know if you need any additional >> >info or >> >if you want me to try to bisect it. >> > >> >Starting network... >> >... >> >[ 0.877040] BUG: unable to handle kernel NULL pointer dereference at >> >0000000000000056 >> >[ 0.877597] IP: [<ffffffff8155b5e2>] ip_route_input_noref+0x1a2/0xb00 >> >> Can you send me your kernel config and qemu command line? KVM with virtio >> networking is a primary test vehicle, and I did not encounter this at all. >> >> Thanks, >> David >> >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
