| Age | Commit message (Collapse) | Author | Files | Lines |
|---|
|
systemd-sysctl is triggering a suspicious RCU usage message when
net.ipv4.tcp_early_demux or net.ipv4.udp_early_demux is changed via
a sysctl config file:
[ 33.896184] ===============================
[ 33.899558] [ ERR: suspicious RCU usage. ]
[ 33.900624] 4.11.0-rc7+ #104 Not tainted
[ 33.901698] -------------------------------
[ 33.903059] /home/dsa/kernel-2.git/net/ipv4/sysctl_net_ipv4.c:305 suspicious rcu_dereference_check() usage!
[ 33.905724]
other info that might help us debug this:
[ 33.907656]
rcu_scheduler_active = 2, debug_locks = 0
[ 33.909288] 1 lock held by systemd-sysctl/143:
[ 33.910373] #0: (sb_writers#5){.+.+.+}, at: [<ffffffff8123a370>] file_start_write+0x45/0x48
[ 33.912407]
stack backtrace:
[ 33.914018] CPU: 0 PID: 143 Comm: systemd-sysctl Not tainted 4.11.0-rc7+ #104
[ 33.915631] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014
[ 33.917870] Call Trace:
[ 33.918431] dump_stack+0x81/0xb6
[ 33.919241] lockdep_rcu_suspicious+0x10f/0x118
[ 33.920263] proc_configure_early_demux+0x65/0x10a
[ 33.921391] proc_udp_early_demux+0x3a/0x41
add rcu locking to proc_configure_early_demux.
Fixes: dddb64bcb3461 ("net: Add sysctl to toggle early demux for tcp and udp")
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Trivial fix to spelling mistake in dev_err message and rejoin
line.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Use offset_in_page() macro instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This change restricts the PF in multi-host mode from setting any port
level PHY configuration. The settings are controlled by firmware in
Multi-Host mode.
Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Check the additional flag in bnxt_hwrm_func_qcfg() before allowing
DCBX to be done in host mode.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Added support for 100G link speed reporting for Broadcom BCM57454
ASIC in ethtool command.
Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The .ndo_get_vf_config() is returning the wrong qos attribute. Fix
the code that checks and reports the qos and spoofchk attributes. The
BNXT_VF_QOS and BNXT_VF_LINK_UP flags should not be set by default
during init. time.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When the driver gets the RoCE app priority set/delete call through DCBNL,
the driver will send the information to the firmware to set up the
priority VLAN tag for RDMA traffic.
[ New version using the common ETH_P_IBOE constant in if_ether.h ]
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Add a new optional conntrack action attribute OVS_CT_ATTR_EVENTMASK,
which can be used in conjunction with the commit flag
(OVS_CT_ATTR_COMMIT) to set the mask of bits specifying which
conntrack events (IPCT_*) should be delivered via the Netfilter
netlink multicast groups. Default behavior depends on the system
configuration, but typically a lot of events are delivered. This can be
very chatty for the NFNLGRP_CONNTRACK_UPDATE group, even if only some
types of events are of interest.
Netfilter core init_conntrack() adds the event cache extension, so we
only need to set the ctmask value. However, if the system is
configured without support for events, the setting will be skipped due
to extension not being found.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Reviewed-by: Greg Rose <gvrose8192@gmail.com>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Fix typo in a comment.
Signed-off-by: Jarno Rajahalme <jarno@ovn.org>
Acked-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When an error is encountered during transmit we need to free the
skb instead of returning TX_BUSY.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Validate that the napi structs exist before trying to disable them
at driver close.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Create a common routine for setting the link state for the vnic adapter.
This update moves the sending of the crq and waiting for the link state
response to a common place. The new routine also adds handling of
resending the crq in cases of getting a partial success response.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
We should be initializing the stats token in the same place we
initialize the other resources for the driver.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When handling a fatal error in the driver, there can be additional
error information provided by the vios. This information is not
always present, so only retrieve the additional error information
when present.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This patch addresses a modification in the PAPR+ specification which now
defines a previously reserved value for vNIC capabilities. It indicates
whether the system firmware performs a VLAN header stripping on all VLAN
tagged received frames, in case it does, the behavior expected is for
the ibmvnic driver to be responsible for inserting the VLAN header.
Reported-by: Manvanthara B. Puttashankar <mputtash@in.ibm.com>
Signed-off-by: Murilo Fossa Vicentini <muvic@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Along with 5 TX queues, 5 RX queues are allocated at the beginning of
device probe. However, only the real number of TX queues is set. Configure
the real number of RX queues as well.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Create two groups with PACKET_FANOUT_FLAG_UNIQUEID, add a socket to one.
Ensure that the groups can only be joined if all options are consistent
with the original except for this flag.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Fanout uses a per net global namespace. A process that intends to create
a new fanout group can accidentally join an existing group. It is not
possible to detect this.
Add socket option PACKET_FANOUT_FLAG_UNIQUEID. When specified the
supplied fanout group id must be set to 0, and the kernel chooses an id
that is not already in use. This is an ephemeral flag so that
other sockets can be added to this group using setsockopt, but NOT
specifying this flag. The current getsockopt(..., PACKET_FANOUT, ...)
can be used to retrieve the new group id.
We assume that there are not a lot of fanout groups and that this is not
a high frequency call.
The method assigns ids starting at zero and increases until it finds an
unused id. It keeps track of the last assigned id, and uses it as a
starting point to find new ids.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
sock_fanout_open no longer sets the size of packet_socket ring, so stop
passing the parameter.
Signed-off-by: Mike Maloney <maloney@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Some boards [1] leave the PHYs at an invalid state
during system power-up or reset thus causing unreliability
issues with the PHY which manifests as PHY not being detected
or link not functional. To fix this, these PHYs need to be RESET
via a GPIO connected to the PHY's RESET pin.
Some boards have a single GPIO controlling the PHY RESET pin of all
PHYs on the bus whereas some others have separate GPIOs controlling
individual PHY RESETs.
In both cases, the RESET de-assertion cannot be done in the PHY driver
as the PHY will not probe till its reset is de-asserted.
So do the RESET de-assertion in the MDIO bus driver.
[1] - am572x-idk, am571x-idk, a437x-idk
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The virtio drivers deal with struct virtio_vsock_pkt. Add
virtio_transport_deliver_tap_pkt(pkt) for handing packets to the
vsockmon device.
We call virtio_transport_deliver_tap_pkt(pkt) from
net/vmw_vsock/virtio_transport.c and drivers/vhost/vsock.c instead of
common code. This is because the drivers may drop packets before
handing them to common code - we still want to capture them.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Add vsockmon virtual network device that receives packets from the vsock
transports and exposes them to user space.
Based on the nlmon device.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Add tap functions that can be used by the vsock transports to
deliver packets to vsockmon virtual network devices.
Signed-off-by: Gerard Garcia <ggarcia@deic.uab.cat>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The patch adds driver support for static/local dcbx mode. In this mode
adapter brings up the dcbx link with locally configured parameters
instead of performing the dcbx negotiation with the peer. The feature
is useful when peer device/switch doesn't support dcbx.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
In the older firmware there was no distinction between RoCE and RoCEv2
whereas the newer firmware (8.15.3.0) allows us to configure each
independently. Driver need to populate the RoCEv2 data in its specific
structure.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
update the list and remove 'in the future' statement,
since all still alive 64-bit architectures now do eBPF JIT.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
|
|
This is an eBPF JIT for sparc64. All major features are supported.
All tests under tools/testing/selftests/bpf/ pass.
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
This is in preparation for adding the 64-bit eBPF JIT.
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Fix sparse warning about missing prototypes. The rx/tx code path
defines functions with prototypes in ipoib.h.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Fix sparse warnings in recent ipoib support.
The RDMA functions are not used yet, hide behind #ifdef.
Based on comment, they will eventually be local so make static.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Implement the devlink e-switch encapsulation control set and get
callbacks. Apply the value set by the user on the switchdev offloads
mode when creating the fast FDB table where offloaded rules will be set.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Refactor the creation of the fast path FDB table that holds the
offloaded rules in SRIOV switchdev mode into it's own function.
This will be used in the next patch to be able and re-create the
table under different settings without going through legacy mode.
This patch doesn't change any functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
This is an e-switch global knob to enable HW support for applying
encapsulation/decapsulation to VF traffic as part of SRIOV e-switch offloading.
The actual encap/decap is carried out (along with the matching and other actions)
per offloaded e-switch rules, e.g as done when offloading the TC tunnel key action.
Signed-off-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
|
|
Ensure that HCI_UART_PROTO_READY is cleared before close(hu) is
called which closes the Data Link protocol layer.
Therefore, add the missing bit clear of HCI_UART_PROTO_READY to
hci_uart_init_work() so that the flag is cleared when
hci_register_dev fails.
Without the fix, the functions of the Data Link protocol layer could
potentially be accessed after that layer has been closed. This
could lead to a crash as memory would have been freed in that layer.
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
When hci_register_dev() fails, hu->hdev should be set to NULL before
freeing hdev. This avoids potential use of hu->hdev after it has been
freed.
This commit sets hu->hdev to NULL before calling hci_free_dev() in error
handling scenarios in hci_uart_init_work() and hci_uart_register_dev().
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
If hci_register_dev() returns an error in hci_uart_init_work()
then the HCI_UART_REGISTERED bit gets erroneously set due to
a missing return statement. Therefore, add the missing return
statement.
The consequence of the missing return is that the HCI UART is not
registered but HCI_UART_REGISTERED is set which allows the code
to think that hu->hdev is safe to access but hu->hdev has been
freed so could lead to a crash.
Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
A device driver must not select the COMMON_CLK subsystem, as that conflicts
with platforms that provide a legacy implementation of the clk API:
drivers/clk/clk.o: In function `clk_enable':
clk.c:(.text.clk_enable+0x0): multiple definition of `clk_enable'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_enable+0x0): first defined here
drivers/clk/clk.o: In function `clk_round_rate':
clk.c:(.text.clk_round_rate+0x0): multiple definition of `clk_round_rate'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_round_rate+0x0): first defined here
drivers/clk/clk.o: In function `clk_get_parent':
clk.c:(.text.clk_get_parent+0x0): multiple definition of `clk_get_parent'
arch/arm/mach-sa1100/clock.o:clock.c:(.text.clk_get_parent+0x0): first defined here
drivers/clk/clk.o: In function `clk_get_rate':
clk.c:(.text.clk_get_rate+0x0): multiple definition of `clk_get_rate'
This changes the 'select' into 'depends on', as all other similar drivers do.
Fixes: d931acd575d6 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
With CONFIG_SERIAL_DEV_BUS=m, the hci_serdev.o file does not actually
get built into hci_uart.o as the Makefile doesn't pick it up, leading
to a link error with anything referring to it:
ERROR: "hci_uart_register_device" [drivers/bluetooth/hci_nokia.ko] undefined!
scripts/Makefile.modpost:91: recipe for target '__modpost' failed
Changing this in the Makefile would cause another problem when
hci_uart itself is built-in and cannot reference symbols from the
serdev module.
This tries to address both problems by introducing a new hidden
Kconfig symbol that controls both the compilation of hci_serdev.o
and whether the Nokia driver can be selected. This seems to address
the problem for me, though there might be a better way to do it.
Fixes: 7bb318680e86 ("Bluetooth: add nokia driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
Avoid NULL pointer dereference occurring due to freeing
skb containing an error pointer. It can easily be triggered
by using the driver with broken uart (i.e. due to misconfigured
pinmuxing).
Fixes: 371805522f87 ("bluetooth: hci_uart: add LL protocol serdev driver support")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
|
|
We are not supposed to add new entries to this thing
any more.
Thanks to Eric Dumazet for noticing this.
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Reducing real_num_tx_queues needs to be in sync with skb queue_mapping
otherwise skbs with queue_mapping greater than real_num_tx_queues
can be sent to the underlying driver and can result in kernel panic.
One such event is running netconsole and enabling VF on the same
device. Or running netconsole and changing number of tx queues via
ethtool on same device.
e.g.
Unable to handle kernel NULL pointer dereference
tsk->{mm,active_mm}->context = 0000000000001525
tsk->{mm,active_mm}->pgd = fff800130ff9a000
\|/ ____ \|/
"@'/ .. \`@"
/_| \__/ |_\
\__U_/
kworker/48:1(475): Oops [#1]
CPU: 48 PID: 475 Comm: kworker/48:1 Tainted: G OE
4.11.0-rc3-davem-net+ #7
Workqueue: events queue_process
task: fff80013113299c0 task.stack: fff800131132c000
TSTATE: 0000004480e01600 TPC: 00000000103f9e3c TNPC: 00000000103f9e40 Y:
00000000 Tainted: G OE
TPC: <ixgbe_xmit_frame_ring+0x7c/0x6c0 [ixgbe]>
g0: 0000000000000000 g1: 0000000000003fff g2: 0000000000000000 g3:
0000000000000001
g4: fff80013113299c0 g5: fff8001fa6808000 g6: fff800131132c000 g7:
00000000000000c0
o0: fff8001fa760c460 o1: fff8001311329a50 o2: fff8001fa7607504 o3:
0000000000000003
o4: fff8001f96e63a40 o5: fff8001311d77ec0 sp: fff800131132f0e1 ret_pc:
000000000049ed94
RPC: <set_next_entity+0x34/0xb80>
l0: 0000000000000000 l1: 0000000000000800 l2: 0000000000000000 l3:
0000000000000000
l4: 000b2aa30e34b10d l5: 0000000000000000 l6: 0000000000000000 l7:
fff8001fa7605028
i0: fff80013111a8a00 i1: fff80013155a0780 i2: 0000000000000000 i3:
0000000000000000
i4: 0000000000000000 i5: 0000000000100000 i6: fff800131132f1a1 i7:
00000000103fa4b0
I7: <ixgbe_xmit_frame+0x30/0xa0 [ixgbe]>
Call Trace:
[00000000103fa4b0] ixgbe_xmit_frame+0x30/0xa0 [ixgbe]
[0000000000998c74] netpoll_start_xmit+0xf4/0x200
[0000000000998e10] queue_process+0x90/0x160
[0000000000485fa8] process_one_work+0x188/0x480
[0000000000486410] worker_thread+0x170/0x4c0
[000000000048c6b8] kthread+0xd8/0x120
[0000000000406064] ret_from_fork+0x1c/0x2c
[0000000000000000] (null)
Disabling lock debugging due to kernel taint
Caller[00000000103fa4b0]: ixgbe_xmit_frame+0x30/0xa0 [ixgbe]
Caller[0000000000998c74]: netpoll_start_xmit+0xf4/0x200
Caller[0000000000998e10]: queue_process+0x90/0x160
Caller[0000000000485fa8]: process_one_work+0x188/0x480
Caller[0000000000486410]: worker_thread+0x170/0x4c0
Caller[000000000048c6b8]: kthread+0xd8/0x120
Caller[0000000000406064]: ret_from_fork+0x1c/0x2c
Caller[0000000000000000]: (null)
Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Andrey Konovalov reported a BUG caused by the ip6mr code which is caused
because we call unregister_netdevice_many for a device that is already
being destroyed. In IPv4's ipmr that has been resolved by two commits
long time ago by introducing the "notify" parameter to the delete
function and avoiding the unregister when called from a notifier, so
let's do the same for ip6mr.
The trace from Andrey:
------------[ cut here ]------------
kernel BUG at net/core/dev.c:6813!
invalid opcode: 0000 [#1] SMP KASAN
Modules linked in:
CPU: 1 PID: 1165 Comm: kworker/u4:3 Not tainted 4.11.0-rc7+ #251
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs
01/01/2011
Workqueue: netns cleanup_net
task: ffff880069208000 task.stack: ffff8800692d8000
RIP: 0010:rollback_registered_many+0x348/0xeb0 net/core/dev.c:6813
RSP: 0018:ffff8800692de7f0 EFLAGS: 00010297
RAX: ffff880069208000 RBX: 0000000000000002 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88006af90569
RBP: ffff8800692de9f0 R08: ffff8800692dec60 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000000 R12: ffff88006af90070
R13: ffff8800692debf0 R14: dffffc0000000000 R15: ffff88006af90000
FS: 0000000000000000(0000) GS:ffff88006cb00000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7e897d870 CR3: 00000000657e7000 CR4: 00000000000006e0
Call Trace:
unregister_netdevice_many.part.105+0x87/0x440 net/core/dev.c:7881
unregister_netdevice_many+0xc8/0x120 net/core/dev.c:7880
ip6mr_device_event+0x362/0x3f0 net/ipv6/ip6mr.c:1346
notifier_call_chain+0x145/0x2f0 kernel/notifier.c:93
__raw_notifier_call_chain kernel/notifier.c:394
raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401
call_netdevice_notifiers_info+0x51/0x90 net/core/dev.c:1647
call_netdevice_notifiers net/core/dev.c:1663
rollback_registered_many+0x919/0xeb0 net/core/dev.c:6841
unregister_netdevice_many.part.105+0x87/0x440 net/core/dev.c:7881
unregister_netdevice_many net/core/dev.c:7880
default_device_exit_batch+0x4fa/0x640 net/core/dev.c:8333
ops_exit_list.isra.4+0x100/0x150 net/core/net_namespace.c:144
cleanup_net+0x5a8/0xb40 net/core/net_namespace.c:463
process_one_work+0xc04/0x1c10 kernel/workqueue.c:2097
worker_thread+0x223/0x19c0 kernel/workqueue.c:2231
kthread+0x35e/0x430 kernel/kthread.c:231
ret_from_fork+0x31/0x40 arch/x86/entry/entry_64.S:430
Code: 3c 32 00 0f 85 70 0b 00 00 48 b8 00 02 00 00 00 00 ad de 49 89
47 78 e9 93 fe ff ff 49 8d 57 70 49 8d 5f 78 eb 9e e8 88 7a 14 fe <0f>
0b 48 8b 9d 28 fe ff ff e8 7a 7a 14 fe 48 b8 00 00 00 00 00
RIP: rollback_registered_many+0x348/0xeb0 RSP: ffff8800692de7f0
---[ end trace e0b29c57e9b3292c ]---
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
With CONFIG_I2C=m and NET_DSA_SMSC_LAN9303=y, we run into a link error:
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_read':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_read+0x18): undefined reference to `i2c_smbus_read_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_byte_reg_write':
regmap-i2c.c:(.text.regmap_smbus_byte_reg_write+0x18): undefined reference to `i2c_smbus_write_byte_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_reg_read':
regmap-i2c.c:(.text.regmap_smbus_word_reg_read+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_read_swapped':
regmap-i2c.c:(.text.regmap_smbus_word_read_swapped+0x18): undefined reference to `i2c_smbus_read_word_data'
drivers/base/regmap/regmap-i2c.o: In function `regmap_smbus_word_write_swapped':
This adds a Kconfig dependency to avoid the broken configuration.
Fixes: be4e119f9914 ("net: dsa: LAN9303: add I2C managed mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Earlier patch 4493b81bea ("bonding: initialize work-queues during
creation of bond") moved the work-queue initialization from bond_open()
to bond_create(). However this caused the link those are created using
netlink 'create bond option' (ip link add bondX type bond); create the
new trunk without initializing work-queues. Prior to the above mentioned
change, ndo_open was in both paths and things worked correctly. The
consequence is visible in the report shared by Joe Stringer -
I've noticed that this patch breaks bonding within namespaces if
you're not careful to perform device cleanup correctly.
Here's my repro script, you can run on any net-next with this patch
and you'll start seeing some weird behaviour:
ip netns add foo
ip li add veth0 type veth peer name veth0+ netns foo
ip li add veth1 type veth peer name veth1+ netns foo
ip netns exec foo ip li add bond0 type bond
ip netns exec foo ip li set dev veth0+ master bond0
ip netns exec foo ip li set dev veth1+ master bond0
ip netns exec foo ip addr add dev bond0 192.168.0.1/24
ip netns exec foo ip li set dev bond0 up
ip li del dev veth0
ip li del dev veth1
The second to last command segfaults, last command hangs. rtnl is now
permanently locked. It's not a problem if you take bond0 down before
deleting veths, or delete bond0 before deleting veths. If you delete
either end of the veth pair as per above, either inside or outside the
namespace, it hits this problem.
Here's some kernel logs:
[ 1221.801610] bond0: Enslaving veth0+ as an active interface with an up link
[ 1224.449581] bond0: Enslaving veth1+ as an active interface with an up link
[ 1281.193863] bond0: Releasing backup interface veth0+
[ 1281.193866] bond0: the permanent HWaddr of veth0+ -
16:bf:fb:e0:b8:43 - is still in use by bond0 - set the HWaddr of
veth0+ to a different address to avoid conflicts
[ 1281.193867] ------------[ cut here ]------------
[ 1281.193873] WARNING: CPU: 0 PID: 2024 at kernel/workqueue.c:1511
__queue_delayed_work+0x13f/0x150
[ 1281.193873] Modules linked in: bonding veth openvswitch nf_nat_ipv6
nf_nat_ipv4 nf_nat autofs4 nfsd auth_rpcgss nfs_acl binfmt_misc nfs
lockd grace sunrpc fscache ppdev vmw_balloon coretemp psmouse
serio_raw vmwgfx ttm drm_kms_helper vmw_vmci netconsole parport_pc
configfs drm i2c_piix4 fb_sys_fops syscopyarea sysfillrect sysimgblt
shpchp mac_hid nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4
nf_defrag_ipv4 nf_conntrack libcrc32c lp parport hid_generic usbhid
hid mptspi mptscsih e1000 mptbase ahci libahci
[ 1281.193905] CPU: 0 PID: 2024 Comm: ip Tainted: G W
4.10.0-bisect-bond-v0.14 #37
[ 1281.193906] Hardware name: VMware, Inc. VMware Virtual
Platform/440BX Desktop Reference Platform, BIOS 6.00 09/30/2014
[ 1281.193906] Call Trace:
[ 1281.193912] dump_stack+0x63/0x89
[ 1281.193915] __warn+0xd1/0xf0
[ 1281.193917] warn_slowpath_null+0x1d/0x20
[ 1281.193918] __queue_delayed_work+0x13f/0x150
[ 1281.193920] queue_delayed_work_on+0x27/0x40
[ 1281.193929] bond_change_active_slave+0x25b/0x670 [bonding]
[ 1281.193932] ? synchronize_rcu_expedited+0x27/0x30
[ 1281.193935] __bond_release_one+0x489/0x510 [bonding]
[ 1281.193939] ? addrconf_notify+0x1b7/0xab0
[ 1281.193942] bond_netdev_event+0x2c5/0x2e0 [bonding]
[ 1281.193944] ? netconsole_netdev_event+0x124/0x190 [netconsole]
[ 1281.193947] notifier_call_chain+0x49/0x70
[ 1281.193948] raw_notifier_call_chain+0x16/0x20
[ 1281.193950] call_netdevice_notifiers_info+0x35/0x60
[ 1281.193951] rollback_registered_many+0x23b/0x3e0
[ 1281.193953] unregister_netdevice_many+0x24/0xd0
[ 1281.193955] rtnl_delete_link+0x3c/0x50
[ 1281.193956] rtnl_dellink+0x8d/0x1b0
[ 1281.193960] rtnetlink_rcv_msg+0x95/0x220
[ 1281.193962] ? __kmalloc_node_track_caller+0x35/0x280
[ 1281.193964] ? __netlink_lookup+0xf1/0x110
[ 1281.193966] ? rtnl_newlink+0x830/0x830
[ 1281.193967] netlink_rcv_skb+0xa7/0xc0
[ 1281.193969] rtnetlink_rcv+0x28/0x30
[ 1281.193970] netlink_unicast+0x15b/0x210
[ 1281.193971] netlink_sendmsg+0x319/0x390
[ 1281.193974] sock_sendmsg+0x38/0x50
[ 1281.193975] ___sys_sendmsg+0x25c/0x270
[ 1281.193978] ? mem_cgroup_commit_charge+0x76/0xf0
[ 1281.193981] ? page_add_new_anon_rmap+0x89/0xc0
[ 1281.193984] ? lru_cache_add_active_or_unevictable+0x35/0xb0
[ 1281.193985] ? __handle_mm_fault+0x4e9/0x1170
[ 1281.193987] __sys_sendmsg+0x45/0x80
[ 1281.193989] SyS_sendmsg+0x12/0x20
[ 1281.193991] do_syscall_64+0x6e/0x180
[ 1281.193993] entry_SYSCALL64_slow_path+0x25/0x25
[ 1281.193995] RIP: 0033:0x7f6ec122f5a0
[ 1281.193995] RSP: 002b:00007ffe69e89c48 EFLAGS: 00000246 ORIG_RAX:
000000000000002e
[ 1281.193997] RAX: ffffffffffffffda RBX: 00007ffe69e8dd60 RCX: 00007f6ec122f5a0
[ 1281.193997] RDX: 0000000000000000 RSI: 00007ffe69e89c90 RDI: 0000000000000003
[ 1281.193998] RBP: 00007ffe69e89c90 R08: 0000000000000000 R09: 0000000000000003
[ 1281.193999] R10: 00007ffe69e89a10 R11: 0000000000000246 R12: 0000000058f14b9f
[ 1281.193999] R13: 0000000000000000 R14: 00000000006473a0 R15: 00007ffe69e8e450
[ 1281.194001] ---[ end trace 713a77486cbfbfa3 ]---
Fixes: 4493b81bea ("bonding: initialize work-queues during creation of bond")
Reported-by: Joe Stringer <joe@ovn.org>
Tested-by: Joe Stringer <joe@ovn.org>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Add various related files that have been missing under
BPF entry covering essential parts of its infrastructure
and also add myself as co-maintainer.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
David Ahern
Colin Ian King
Geliang Tang
Deepak Khungar
Michael Chan
Jarno Rajahalme
Thomas Falcon
Nathan Fontenot
Murilo Fossa Vicentini
Mike Maloney
Roger Quadros
Gerard Garcia
sudarsana.kalluru@cavium.com
Alexei Starovoitov
David S. Miller
Stephen Hemminger
Roi Dayan
Or Gerlitz
Dean Jenkins
Arnd Bergmann
Sebastian Reichel
Tushar Dave
Nikolay Aleksandrov
Mahesh Bandewar
Daniel Borkmann