[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From wil...@us.ibm.com 2016-12-02 18:01 EDT--- Hi Canonical This issue with the bnx2x driver exists in the all 4.4. kernels including the current stable (4.4.36). If 16.04 will continue to support a 4.4. kernel we need the following patch included in a kernel build. I am working on ppc64le however others have reported the issue on x86-64. (The full patch is attached to this bugzilla) >From a02cc9d3cc9f98905df214d4a57e5918473260ea Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Jun 2016 15:32:18 +0200 Subject: [PATCH] bnx2x: allow adding VLANs while interface is down Here are the steps to verify the fix: # brctl addbr boom # brctl stp boom off # brctl addif boom # brctl delif boom is any network interface using the bnx2x network driver. The Oops happens after brctl delif is run unless patch is included. Note: the problem can be avoided if is "up" before brctl addif is run. This worked when I ran the commands by hand as above. I attempted to modify the /etc/network/interfaces to change the state of the interface before creating the bridge but was unsuccessful. Maybe someone else will have better luck. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Invalid Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Invalid Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Invalid Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 001406e0 Aug 23 15:09:46 base1 kernel: [ 618.058802] Stack: Aug 23 15:09:46 base1
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From wil...@us.ibm.com 2016-12-02 12:48 EDT---
I found the root of the problem in the bnx2x driver. If the interface is down
when it is slaved to the bridge it returns -EFAULT when attempting to add a vid.
tatic int bnx2x_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
{
struct bnx2x *bp = netdev_priv(dev);
struct bnx2x_vlan_entry *vlan;
bool hw = false;
int rc = 0;
if (!netif_running(bp->dev)) {
DP(NETIF_MSG_IFUP,
"Ignoring VLAN configuration the interface is down\n");
return -EFAULT;
}
..
This has been corrected in the commit:
a02cc9d3cc9f98905df214d4a57e5918473260ea
>From a02cc9d3cc9f98905df214d4a57e5918473260ea Mon Sep 17 00:00:00 2001
From: Michal Schmidt
Date: Fri, 3 Jun 2016 15:32:18 +0200
Subject: [PATCH] bnx2x: allow adding VLANs while interface is down
Since implementing VLAN filtering in commit 05cc5a39ddb74
("bnx2x: add vlan filtering offload") bnx2x refuses to add a VLAN while
the interface is down:
# ip link add link enp3s0f0 enp3s0f0_10 type vlan id 10
RTNETLINK answers: Bad address
and in dmesg (with bnx2x.debug=0x20):
bnx2x: [bnx2x_vlan_rx_add_vid:12941(enp3s0f0)]Ignoring VLAN
configuration the interface is down
Other drivers have no problem with this.
Fix this peculiar behavior in the following way:
- Accept requests to add/kill VID regardless of the device state.
Maintain the requested list of VIDs in the bp->vlan_reg list.
- If the device is up, try to configure the VID list into the hardware.
If we run out of VLAN credits or encounter a failure configuring an
entry, fall back to accepting all VLANs.
If we successfully configure all entries from the list, turn the
fallback off.
- Use the same code for reconfiguring VLANs during NIC load.
Signed-off-by: Michal Schmidt
Acked-by: Yuval Mintz
Signed-off-by: David S. Miller
-
I applied the patch to a 4.4.24 kernel; and it corrected the issue.
As a workaround simply bringing the interface up (ifconfig
up> ) before adding it to the bridge.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to bridge-utils in Ubuntu.
https://bugs.launchpad.net/bugs/1616107
Title:
Kernel oops + system freeze on network-bridge shutdown
Status in bridge-utils package in Ubuntu:
Invalid
Status in linux package in Ubuntu:
Confirmed
Status in bridge-utils source package in Xenial:
Invalid
Status in linux source package in Xenial:
Confirmed
Status in bridge-utils source package in Yakkety:
Invalid
Bug description:
A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is
brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver.
This error does not appear in Ubuntu 14.04 however.
The error is reproducible whenever issuing the commands "shutdown",
"service networking stop" or "brctl delbr br0". Manually creating the
bridge and subsequently bringing it down results in the same error.
/var/log/kern.log:
[...]
Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous
mode
Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered
disabled state
Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel
NULL pointer dereference at 00d2
Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: []
__vlan_flush+0x18/0x60 [bridge]
Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067
PMD 0
Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP
Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1
ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel
kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich
ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm
iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi
scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear
raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw
gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci
i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio
libcrc32c wmi fjes
Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not
tainted 4.4.0-34-generic #53-Ubuntu
Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120
Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016
Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti:
8810341e4000 task.ti: 8810341e4000
Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[]
[] __vlan_flush+0x18/0x60 [bridge]
Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68
EFLAGS: 00010206
Aug 23 15:09:46 base1 kernel: [ 618.
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From wil...@us.ibm.com 2016-11-18 20:02 EDT--- I traced the probolem to __vlan_vid_add(), this code snipit: /* Try switchdev op first. In case it is not supported, fallback to * 8021q add. */ err = switchdev_port_obj_add(dev, &v.obj); if (err == -EOPNOTSUPP) return vlan_vid_add(dev, br->vlan_proto, vid); return err; switchdev_port_obj_add() returns EOPNOTSUP so it it calls vlan_vid_add() that function is in 8021q module, on my system that was not loaded. If I set the interface to be added to the bridge UP then load 8021q before creating the bridge the problem will not happen. Using the following steps to create the bridge will prevent the problem.. rmmod bridge rmmod 8021q ifconfig enP2p1s0f3 up modprobe 8021q brctl addbr boom brctl stp boom off brctl addif boom enP2p1s0f3 brctl delif boom enP2p1s0f3 I made a few attempts to alter the interfaces script to create a workaround. Not much luck. however we can prevent a panic by not shutting down the interface at system shutdown time. Using the no-auto- down directive in /etc/network/interfaces worked for me. My Bridge definition is: no-auto-down boom iface boom inet static address 192.168.10.1 netmask 255.255.0.0 bridge_ports enP2p1s0f3 bridge_stp off -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Confirmed Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 000
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From wil...@us.ibm.com 2016-11-17 19:00 EDT--- I can reproduce the problem using the following steps: brctl addbr boom brctl stp boom off brctl addif boom enP2p1s0f3 brctl delif boom enP2p1s0f3 enP2p1s0f3 is a port on a bnx2. The Oops will occur when "brctl delif" is run. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Confirmed Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 001406e0 Aug 23 15:09:46 base1 kernel: [ 618.058802] Stack: Aug 23 15:09:46 base1 kernel: [ 618.058806] 8810356a4c00 8810341e7d98 c0489258 Aug 23 15:09:46 base1 kernel: [ 618.058822] 8810356a4c00 881038470840 8810341e7dc0 c0479bd8 Aug 23 15:09:46 base1 kernel: [ 618.058825] 881038470838 881038470848 88103847 8810341e7df8 Aug 23 15:09:46 base1 kernel: [ 618.058827] Call Trace: Aug 23 15:09:46 base1 kernel: [ 618.058863] [] nbp_vlan_flush+0x28/0x65 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058870] [] del_nbp+0x98/0x130 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058889] [] br_dev_delete+0x42/0xb0 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058895] [] br_del_bridge+0x4a/0x70 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058911] [] br_ioctl_deviceless_stub+0x153/0x230 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058984
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From ru...@us.ibm.com 2016-11-16 16:02 EDT--- Tested with 4.8.0-27 from proposed. With this kernel, the vlan filtering init appears to have been successful, so br->vlgrp was not NULL on shutdown. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Confirmed Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 001406e0 Aug 23 15:09:46 base1 kernel: [ 618.058802] Stack: Aug 23 15:09:46 base1 kernel: [ 618.058806] 8810356a4c00 8810341e7d98 c0489258 Aug 23 15:09:46 base1 kernel: [ 618.058822] 8810356a4c00 881038470840 8810341e7dc0 c0479bd8 Aug 23 15:09:46 base1 kernel: [ 618.058825] 881038470838 881038470848 88103847 8810341e7df8 Aug 23 15:09:46 base1 kernel: [ 618.058827] Call Trace: Aug 23 15:09:46 base1 kernel: [ 618.058863] [] nbp_vlan_flush+0x28/0x65 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058870] [] del_nbp+0x98/0x130 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058889] [] br_dev_delete+0x42/0xb0 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058895] [] br_del_bridge+0x4a/0x70 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058911] [] br_ioctl_deviceless_stub+0x153/0x230 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058984] [] ? security_file_alloc+0x33/0x50 Aug 23 15:09:46 base1 kernel: [ 618.
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From cdead...@us.ibm.com 2016-11-16 13:36 EDT--- cde00 (cdead...@us.ibm.com) added native attachment /tmp/AIXOS06682471/JournalErrors.txt on 2016-11-16 12:33:12 cde00 (cdead...@us.ibm.com) added native attachment /tmp/AIXOS06682471/shutdown-problem-power8 on 2016-11-16 12:33:12 cde00 (cdead...@us.ibm.com) added native attachment /tmp/AIXOS06682471/ProcEnviron.txt on 2016-11-16 12:33:12 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Confirmed Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 001406e0 Aug 23 15:09:46 base1 kernel: [ 618.058802] Stack: Aug 23 15:09:46 base1 kernel: [ 618.058806] 8810356a4c00 8810341e7d98 c0489258 Aug 23 15:09:46 base1 kernel: [ 618.058822] 8810356a4c00 881038470840 8810341e7dc0 c0479bd8 Aug 23 15:09:46 base1 kernel: [ 618.058825] 881038470838 881038470848 88103847 8810341e7df8 Aug 23 15:09:46 base1 kernel: [ 618.058827] Call Trace: Aug 23 15:09:46 base1 kernel: [ 618.058863] [] nbp_vlan_flush+0x28/0x65 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058870] [] del_nbp+0x98/0x130 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058889] [] br_dev_delete+0x42/0xb0 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058895] [] br_del_bridge+0x4a/0x70 [bridge] Aug 23 15:09:46 base1 ker
[Touch-packages] [Bug 1616107] Comment bridged from LTC Bugzilla
--- Comment From ru...@us.ibm.com 2016-11-16 13:27 EDT--- Reversed mirrored as we can still replicate this with 4.4.0-47. I'll give the proposed 4.8 kernel a try later today. Regardless of whether the bnx2x vlan filter init error is resolved, it seems that the nbp_vlan_flush() routine needs to be hardened a bit to hand a null vlan group (seems like simply posting a warning and returning would be a better response than panicking since there isn't a group to flush). -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bridge-utils in Ubuntu. https://bugs.launchpad.net/bugs/1616107 Title: Kernel oops + system freeze on network-bridge shutdown Status in bridge-utils package in Ubuntu: Confirmed Status in linux package in Ubuntu: Confirmed Status in bridge-utils source package in Xenial: Confirmed Status in linux source package in Xenial: Confirmed Status in bridge-utils source package in Yakkety: Confirmed Bug description: A Kernel oops leaves Ubuntu 16.04 unusable when a network bridge is brought down on a HPE 530SFP+ 10GBit NIC that uses bnx2x as a driver. This error does not appear in Ubuntu 14.04 however. The error is reproducible whenever issuing the commands "shutdown", "service networking stop" or "brctl delbr br0". Manually creating the bridge and subsequently bringing it down results in the same error. /var/log/kern.log: [...] Aug 23 15:09:46 base1 kernel: [ 617.996677] device ens1f0 left promiscuous mode Aug 23 15:09:46 base1 kernel: [ 617.996699] br0: port 1(ens1f0) entered disabled state Aug 23 15:09:46 base1 kernel: [ 617.996730] BUG: unable to handle kernel NULL pointer dereference at 00d2 Aug 23 15:09:46 base1 kernel: [ 618.008306] IP: [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.020549] PGD 10374c0067 PUD 1033927067 PMD 0 Aug 23 15:09:46 base1 kernel: [ 618.032773] Oops: 0002 [#1] SMP Aug 23 15:09:46 base1 kernel: [ 618.044434] Modules linked in: nls_iso8859_1 ipmi_ssif intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass sb_edac edac_core joydev bridge stp llc input_leds hpilo lpc_ich ioatdma ipmi_si ipmi_msghandler shpchp mac_hid acpi_power_meter ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi autofs4 btrfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid0 multipath linear raid1 hid_generic crct10dif_pclmul crc32_pclmul aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd igb usbhid hid bnx2x dca ahci i2c_algo_bit vxlan libahci ip6_udp_tunnel udp_tunnel ptp pps_core mdio libcrc32c wmi fjes Aug 23 15:09:46 base1 kernel: [ 618.058563] CPU: 3 PID: 4049 Comm: brctl Not tainted 4.4.0-34-generic #53-Ubuntu Aug 23 15:09:46 base1 kernel: [ 618.058564] Hardware name: HP ProLiant DL120 Gen9/ProLiant DL120 Gen9, BIOS P86 05/05/2016 Aug 23 15:09:46 base1 kernel: [ 618.058574] task: 881030676040 ti: 8810341e4000 task.ti: 8810341e4000 Aug 23 15:09:46 base1 kernel: [ 618.058576] RIP: 0010:[] [] __vlan_flush+0x18/0x60 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058754] RSP: 0018:8810341e7d68 EFLAGS: 00010206 Aug 23 15:09:46 base1 kernel: [ 618.058769] RAX: RBX: RCX: Aug 23 15:09:46 base1 kernel: [ 618.058774] RDX: 881038470848 RSI: RDI: Aug 23 15:09:46 base1 kernel: [ 618.058775] RBP: 8810341e7d78 R08: R09: 8170d949 Aug 23 15:09:46 base1 kernel: [ 618.058776] R10: ead61340 R11: 8810329d2c00 R12: 00c0 Aug 23 15:09:46 base1 kernel: [ 618.058777] R13: 881030044000 R14: 881038470840 R15: Aug 23 15:09:46 base1 kernel: [ 618.058782] FS: 7f9aebc94700() GS:88107fcc() knlGS: Aug 23 15:09:46 base1 kernel: [ 618.058789] CS: 0010 DS: ES: CR0: 80050033 Aug 23 15:09:46 base1 kernel: [ 618.058790] CR2: 00d2 CR3: 00102fe83000 CR4: 001406e0 Aug 23 15:09:46 base1 kernel: [ 618.058802] Stack: Aug 23 15:09:46 base1 kernel: [ 618.058806] 8810356a4c00 8810341e7d98 c0489258 Aug 23 15:09:46 base1 kernel: [ 618.058822] 8810356a4c00 881038470840 8810341e7dc0 c0479bd8 Aug 23 15:09:46 base1 kernel: [ 618.058825] 881038470838 881038470848 88103847 8810341e7df8 Aug 23 15:09:46 base1 kernel: [ 618.058827] Call Trace: Aug 23 15:09:46 base1 kernel: [ 618.058863] [] nbp_vlan_flush+0x28/0x65 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058870] [] del_nbp+0x98/0x130 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.058889] [] br_dev_delete+0x42/0xb0 [bridge] Aug 23 15:09:46 base1 kernel: [ 618.05889
