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Date: Wed, 4 Mar 2009 23:59:25 -0500 From: Bart Trojanowski <bart@...ie.net> To: David Miller <davem@...emloft.net> Cc: kaber@...sh.net, greearb@...delatech.com, shemminger@...tta.com, dada1@...mosbay.com, frank.blaschka@...ibm.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [BUG] 2.6.29-rc* QinQ vlan trunking regression David, * Bart Trojanowski <bart@...ie.net> [090304 23:54]: > * David Miller <davem@...emloft.net> [090304 22:53]: > > vlan: Fix vlan-in-vlan crashes. > > > > As analyzed by Patrick McHardy, vlan needs to reset it's > > netdev_ops pointer in it's ->init() function but this > > leaves the compat method pointers stale. > > > > Add a netdev_resync_ops() and call it from the vlan code. > <snip> > > include/linux/netdevice.h | 1 + > > net/8021q/vlan_dev.c | 1 + > > net/core/dev.c | 54 +++++++++++++++++++++++++++----------------- > > 3 files changed, 35 insertions(+), 21 deletions(-) > > I tried this patch onto v2.6.29-rc7-3-g559595a, but I still get a crash. > I assume that this worked for you, so I am not putting much faith in my > results at this late hour. I'll confirm tomorrow morning that it's not > something else. ... if you're interested, here is the Oops. And like I said, I'll retest tomorrow. -Bart [ 231.748126] 802.1Q VLAN Support v1.8 Ben Greear <greearb@...delatech.com> [ 231.751563] All bugs added by David S. Miller <davem@...hat.com> [ 231.876164] PANIC: double fault, gdt at c364c000 [255 bytes] [ 231.876271] double fault, tss at c364fae0 [ 231.876271] eip = f8163c65, esp = f3045000 [ 231.876271] eax = f3d78800, ebx = f3d78800, ecx = f8163c62, edx = f3e4ce40 [ 231.876271] esi = f3e4ce40, edi = c05228fc [ 232.156110] BUG: unable to handle kernel paging request at a0ad0eb4 [ 232.159226] IP: [<c011fd49>] hrtick_start_fair+0x1f/0x17d [ 232.160050] *pde = 00000000 [ 232.160050] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 232.160050] last sysfs file: /sys/class/net/lo/operstate [ 232.160050] Modules linked in: 8021q virtio_balloon virtio_pci thermal_sys [ 232.160050] [ 232.160050] Pid: 0, comm: swapper Tainted: G S (2.6.29-rc7-bisect-00004-g39fc204 #1) [ 232.160050] EIP: 0060:[<c011fd49>] EFLAGS: 00010092 CPU: 0 [ 232.160050] EIP is at hrtick_start_fair+0x1f/0x17d [ 232.160050] EAX: c0599d80 EBX: c364e200 ECX: c3651dd4 EDX: f8163c85 [ 232.160050] ESI: f52f6198 EDI: f622b708 EBP: c0545ddc ESP: c0545dc4 [ 232.160050] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 232.160050] Process swapper (pid: 0, ti=c0544000 task=c04fd380 task.ti=c0544000) [ 232.160050] Stack: [ 232.160050] c3651d80 5f684afd 00000002 c3651dd4 f52f6198 c3651d80 c0545df0 c011ff82 [ 232.160050] f4796708 c03d6ad8 00000000 c0545e14 c011da63 0d94c928 00000036 00000000 [ 232.160050] c3651d80 c3651d80 c3648d80 00000522 c0545e20 c011daaa f4796708 c0545e34 [ 232.160050] Call Trace: [ 232.160050] [<c011ff82>] ? dequeue_task_fair+0x51/0x56 [ 232.160050] [<c011da63>] ? dequeue_task+0xd5/0xe4 [ 232.160050] [<c011daaa>] ? deactivate_task+0x19/0x1f [ 232.160050] [<c011e504>] ? pull_task+0x11/0x3d [ 232.160050] [<c011e6fc>] ? load_balance_fair+0x134/0x1ce [ 232.160050] [<c0124684>] ? rebalance_domains+0x219/0x421 [ 232.160050] [<c01248ba>] ? run_rebalance_domains+0x2e/0x9e [ 232.160050] [<c012e0e7>] ? __do_softirq+0x8d/0x133 [ 232.160050] [<c012e1d5>] ? do_softirq+0x48/0x57 [ 232.160050] [<c012e2e6>] ? irq_exit+0x38/0x66 [ 232.160050] [<c011228b>] ? smp_apic_timer_interrupt+0x74/0x82 [ 232.160050] [<c0103cc0>] ? apic_timer_interrupt+0x28/0x30 [ 232.160050] [<c011824f>] ? native_safe_halt+0x5/0x7 [ 232.160050] [<c0108c92>] ? default_idle+0x30/0x58 [ 232.160050] [<c0102605>] ? cpu_idle+0x63/0x7e [ 232.160050] [<c03bee3b>] ? rest_init+0x53/0x55 [ 232.160050] Code: 3e ff ff ff 83 c4 14 5b 5e 5f 5d c3 55 89 e5 57 89 d7 56 53 83 ec 0c 89 45 e8 8b 9a 80 00 00 00 b8 80 9d 59 c0 8b 52 04 8b 52 10 <03> 04 95 a0 1c 54 c0 39 45 e8 74 14 6a 00 68 7a 03 00 00 68 e1 [ 232.160050] EIP: [<c011fd49>] hrtick_start_fair+0x1f/0x17d SS:ESP 0068:c0545dc4 [ 232.160050] ---[ end trace b72565b053d710aa ]--- [ 232.160050] Kernel panic - not syncing: Fatal exception in interrupt [ 232.160050] ------------[ cut here ]------------ [ 232.160050] WARNING: at kernel/smp.c:329 smp_call_function_many+0x37/0x1cf() [ 232.160050] Hardware name: [ 232.160050] Modules linked in: 8021q virtio_balloon virtio_pci thermal_sys [ 232.160050] Pid: 0, comm: swapper Tainted: G S D 2.6.29-rc7-bisect-00004-g39fc204 #1 [ 232.160050] Call Trace: [ 232.160050] [<c0129779>] warn_slowpath+0x71/0xa8 [ 232.160050] [<c0288f14>] ? _raw_spin_unlock+0x74/0x78 [ 232.160050] [<c03ce3aa>] ? _spin_unlock+0x1d/0x20 [ 232.160050] [<c0288f6b>] ? _raw_spin_lock+0x53/0xfa [ 232.160050] [<c03ccadd>] ? mutex_unlock+0x8/0xa [ 232.160050] [<c014b26d>] smp_call_function_many+0x37/0x1cf [ 232.160050] [<c0108ec2>] ? stop_this_cpu+0x0/0x47 [ 232.160050] [<c014b421>] smp_call_function+0x1c/0x23 [ 232.160050] [<c0110e91>] native_smp_send_stop+0x1b/0x45 [ 232.160050] [<c03cb99e>] panic+0x48/0xe4 [ 232.160050] [<c0105ff4>] oops_end+0x9a/0xa9 [ 232.160050] [<c0106187>] die+0x54/0x5a [ 232.160050] [<c01195d3>] do_page_fault+0x5f8/0x69d [ 232.160050] [<c0119fe8>] ? __change_page_attr_set_clr+0x2a7/0x791 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119fe8>] ? __change_page_attr_set_clr+0x2a7/0x791 [ 232.160050] [<c011a5b0>] ? kernel_map_pages+0xde/0xfe [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0118fdb>] ? do_page_fault+0x0/0x69d [ 232.160050] [<c03ce82a>] error_code+0x72/0x78 [ 232.160050] [<f8163c85>] ? vlan_dev_neigh_setup+0x23/0x2a [8021q] [ 232.160050] [<c011fd49>] ? hrtick_start_fair+0x1f/0x17d [ 232.160050] [<c011ff82>] dequeue_task_fair+0x51/0x56 [ 232.160050] [<c011da63>] dequeue_task+0xd5/0xe4 [ 232.160050] [<c011daaa>] deactivate_task+0x19/0x1f [ 232.160050] [<c011e504>] pull_task+0x11/0x3d [ 232.160050] [<c011e6fc>] load_balance_fair+0x134/0x1ce [ 232.160050] [<c0124684>] rebalance_domains+0x219/0x421 [ 232.160050] [<c01248ba>] run_rebalance_domains+0x2e/0x9e [ 232.160050] [<c012e0e7>] __do_softirq+0x8d/0x133 [ 232.160050] [<c012e1d5>] do_softirq+0x48/0x57 [ 232.160050] [<c012e2e6>] irq_exit+0x38/0x66 [ 232.160050] [<c011228b>] smp_apic_timer_interrupt+0x74/0x82 [ 232.160050] [<c0103cc0>] apic_timer_interrupt+0x28/0x30 [ 232.160050] [<c011824f>] ? native_safe_halt+0x5/0x7 [ 232.160050] [<c0108c92>] default_idle+0x30/0x58 [ 232.160050] [<c0102605>] cpu_idle+0x63/0x7e [ 232.160050] [<c03bee3b>] rest_init+0x53/0x55 [ 232.160050] ---[ end trace b72565b053d710ab ]--- [ 232.160050] ------------[ cut here ]------------ [ 232.160050] WARNING: at kernel/smp.c:226 smp_call_function_single+0x37/0xe8() [ 232.160050] Hardware name: [ 232.160050] Modules linked in: 8021q virtio_balloon virtio_pci thermal_sys [ 232.160050] Pid: 0, comm: swapper Tainted: G S D W 2.6.29-rc7-bisect-00004-g39fc204 #1 [ 232.160050] Call Trace: [ 232.160050] [<c0129779>] warn_slowpath+0x71/0xa8 [ 232.160050] [<c0288f14>] ? _raw_spin_unlock+0x74/0x78 [ 232.160050] [<c03ce300>] ? _read_unlock+0x15/0x20 [ 232.160050] [<c0288f6b>] ? _raw_spin_lock+0x53/0xfa [ 232.160050] [<c014b185>] smp_call_function_single+0x37/0xe8 [ 232.160050] [<c0108ec2>] ? stop_this_cpu+0x0/0x47 [ 232.160050] [<c014b2ef>] smp_call_function_many+0xb9/0x1cf [ 232.160050] [<c0108ec2>] ? stop_this_cpu+0x0/0x47 [ 232.160050] [<c014b421>] smp_call_function+0x1c/0x23 [ 232.160050] [<c0110e91>] native_smp_send_stop+0x1b/0x45 [ 232.160050] [<c03cb99e>] panic+0x48/0xe4 [ 232.160050] [<c0105ff4>] oops_end+0x9a/0xa9 [ 232.160050] [<c0106187>] die+0x54/0x5a [ 232.160050] [<c01195d3>] do_page_fault+0x5f8/0x69d [ 232.160050] [<c0119fe8>] ? __change_page_attr_set_clr+0x2a7/0x791 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119fe8>] ? __change_page_attr_set_clr+0x2a7/0x791 [ 232.160050] [<c011a5b0>] ? kernel_map_pages+0xde/0xfe [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0119ca2>] ? lookup_address+0x68/0x88 [ 232.160050] [<c0118fdb>] ? do_page_fault+0x0/0x69d [ 232.160050] [<c03ce82a>] error_code+0x72/0x78 [ 232.160050] [<f8163c85>] ? vlan_dev_neigh_setup+0x23/0x2a [8021q] [ 232.160050] [<c011fd49>] ? hrtick_start_fair+0x1f/0x17d [ 232.160050] [<c011ff82>] dequeue_task_fair+0x51/0x56 [ 232.160050] [<c011da63>] dequeue_task+0xd5/0xe4 [ 232.160050] [<c011daaa>] deactivate_task+0x19/0x1f [ 232.160050] [<c011e504>] pull_task+0x11/0x3d [ 232.160050] [<c011e6fc>] load_balance_fair+0x134/0x1ce [ 232.160050] [<c0124684>] rebalance_domains+0x219/0x421 [ 232.160050] [<c01248ba>] run_rebalance_domains+0x2e/0x9e [ 232.160050] [<c012e0e7>] __do_softirq+0x8d/0x133 [ 232.160050] [<c012e1d5>] do_softirq+0x48/0x57 [ 232.160050] [<c012e2e6>] irq_exit+0x38/0x66 [ 232.160050] [<c011228b>] smp_apic_timer_interrupt+0x74/0x82 [ 232.160050] [<c0103cc0>] apic_timer_interrupt+0x28/0x30 [ 232.160050] [<c011824f>] ? native_safe_halt+0x5/0x7 [ 232.160050] [<c0108c92>] default_idle+0x30/0x58 [ 232.160050] [<c0102605>] cpu_idle+0x63/0x7e [ 232.160050] [<c03bee3b>] rest_init+0x53/0x55 [ 232.160050] ---[ end trace b72565b053d710ac ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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