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Date: Mon, 5 Apr 2010 19:15:24 -0700 From: Stephen Hemminger <shemminger@...tta.com> To: "Tantilov, Emil S" <emil.s.tantilov@...el.com> Cc: David Miller <davem@...emloft.net>, "netdev@...r.kernel.org" <netdev@...r.kernel.org> Subject: Re: net-next: 2.6.34-rc1 regression: panic when running diagnostic on interface with IPv6 On Mon, 5 Apr 2010 17:50:38 -0600 "Tantilov, Emil S" <emil.s.tantilov@...el.com> wrote: > David Miller wrote: > > From: "Tantilov, Emil S" <emil.s.tantilov@...el.com> > > Date: Mon, 5 Apr 2010 17:03:56 -0600 > > > >> David Miller wrote: > >>> From: "Tantilov, Emil S" <emil.s.tantilov@...el.com> > >>> Date: Tue, 23 Mar 2010 12:28:08 -0600 > >>> > >>>> Bisecting points to this patch: > >>>> http://git.kernel.org/?p=linux/kernel/git/davem/net-next-2.6.git;a=commitdiff;h=84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6 > >>>> > >>>> And I confirmed that the issue goes away after reverting it. > >>>> > >>>> Steps to reproduce: > >>>> 1. Load the driver and configure IPv6 address. > >>>> 2. Run ethtool diag: > >>>> ethtool -t eth0 > >>>> > >>>> 3. If this doesn't brake it try again, or just do ifdown/up. Other > >>>> operations on the interface will eventually panic the system: > >>> > >>> Stephen please fix this, thanks. > >> > >> Just FYI - I still see this issue with latest pull from net-2.6. > > > > It's net-next-2.6 that introduced the problem and has the follow-on > > fixes, not net-2.6 > > Same in net-next: > > [ 55.706583] WARNING: at net/ipv6/ip6_fib.c:1170 fib6_del+0x44/0x39f [ipv6]() > [ 55.714851] Hardware name: S5520HC > [ 55.719037] Modules linked in: ipv6 e1000e e1000 > [ 55.724866] Pid: 5599, comm: ifconfig Not tainted 2.6.34-rc1-net-next-e1000e-040510 #9 > [ 55.734418] Call Trace: > [ 55.737540] [<ffffffff81033a3e>] ? __wake_up+0x43/0x50 > [ 55.743773] [<ffffffffa006cb4e>] ? fib6_del+0x44/0x39f [ipv6] > [ 55.750687] [<ffffffff81038b1e>] warn_slowpath_common+0x77/0x8f > [ 55.757793] [<ffffffff81038b45>] warn_slowpath_null+0xf/0x11 > [ 55.764608] [<ffffffffa006cb4e>] fib6_del+0x44/0x39f [ipv6] > [ 55.771314] [<ffffffffa006a13b>] __ip6_del_rt+0x49/0x68 [ipv6] > [ 55.778319] [<ffffffffa006a2aa>] ip6_del_rt+0x38/0x3a [ipv6] > [ 55.785136] [<ffffffffa0065573>] __ipv6_ifa_notify+0x141/0x17d [ipv6] > [ 55.792816] [<ffffffffa00660a4>] addrconf_ifdown+0x1ed/0x2cb [ipv6] > [ 55.800300] [<ffffffffa0067126>] addrconf_notify+0x705/0x7b6 [ipv6] > [ 55.807788] [<ffffffff810456ce>] ? spin_unlock_irqrestore+0x9/0xb > [ 55.815088] [<ffffffff81045b80>] ? __mod_timer+0x125/0x137 > [ 55.821703] [<ffffffff8144eb60>] ? _raw_write_unlock_bh+0x12/0x14 > [ 55.828995] [<ffffffff8103e37d>] ? local_bh_enable_ip+0x9/0xb > [ 55.835906] [<ffffffff8144ec75>] ? _raw_spin_unlock_bh+0x12/0x14 > [ 55.843109] [<ffffffffa006ca9b>] ? fib6_run_gc+0xca/0xcf [ipv6] > [ 55.850213] [<ffffffff81451b29>] notifier_call_chain+0x33/0x5b > [ 55.857216] [<ffffffff81055575>] __raw_notifier_call_chain+0x9/0xb > [ 55.864604] [<ffffffff81055586>] raw_notifier_call_chain+0xf/0x11 > [ 55.871901] [<ffffffff81397d8f>] call_netdevice_notifiers+0x16/0x18 > [ 55.879390] [<ffffffff81397eb2>] __dev_notify_flags+0x35/0x59 > [ 55.886293] [<ffffffff81397f1c>] dev_change_flags+0x46/0x52 > [ 55.893007] [<ffffffff813f0844>] devinet_ioctl+0x27f/0x54b > [ 55.899614] [<ffffffff813f2c18>] inet_ioctl+0x8a/0xa2 > [ 55.905733] [<ffffffff81387275>] sock_do_ioctl+0x26/0x46 > [ 55.912149] [<ffffffff81387490>] sock_ioctl+0x1fb/0x20e > [ 55.918461] [<ffffffff810e7b4b>] vfs_ioctl+0x2a/0x9d > [ 55.924495] [<ffffffff810e80c2>] do_vfs_ioctl+0x48c/0x4dd > [ 55.930999] [<ffffffff810e816a>] sys_ioctl+0x57/0x7a > [ 55.937033] [<ffffffff81002a2b>] system_call_fastpath+0x16/0x1b > [ 55.944123] ---[ end trace c1c390412f982fb6 ]--- > [ 55.949677] Freeing alive inet6 address ffff8801eee32000 > [ 56.034060] fib6_clean_node: del failed: rt=ffff8801ec984e00@(null) err=-2 > Which driver is this, the test function is driver dependent? -- -- 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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