Re: [GIT] Networking
From: John Stultz
Date: Thu Aug 06 2020 - 17:39:38 EST
On Wed, Aug 5, 2020 at 6:57 PM David Miller <davem@xxxxxxxxxxxxx> wrote:
> There is a minor conflict in net/ipv6/ip6_flowlabel.c, it's because of
> the commit that did the tree-wide removal of uninitialized_var(). The
> resolution is simple, kill all of the conflict markers and content
> within, and remove the uninitialized_var() marker that got moved
> elsewhere in the file in the net-next tree.
> Otherwise, we have:
> 1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.
> 2) Support UDP segmentation in code TSO code, from Eric Dumazet.
> 3) Allow flashing different flash images in cxgb4 driver, from Vishal
> 4) Add drop frames counter and flow status to tc flower offloading,
> from Po Liu.
> 5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.
> 6) Various new indirect call avoidance, from Eric Dumazet and Brian
> 7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
> Yonghong Song.
> 8) Support querying and setting hardware address of a port function
> via devlink, use this in mlx5, from Parav Pandit.
> 9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.
> 10) Switch qca8k driver over to phylink, from Jonathan McDowell.
> 11) In bpftool, show list of processes holding BPF FD references to
> maps, programs, links, and btf objects. From Andrii Nakryiko.
> 12) Several conversions over to generic power management, from Vaibhav
> 13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from
> Dmitry Yakunin.
> 14) Various https url conversions, from Alexander A. Klimov.
> 15) Timestamping and PHC support for mscc PHY driver, from Antoine
> 16) Support bpf iterating over tcp and udp sockets, from Yonghong
> 17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.
> 18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.
> 19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
> drivers. From Luc Van Oostenryck.
> 20) XDP support for xen-netfront, from Denis Kirjanov.
> 21) Support receive buffer autotuning in MPTCP, from Florian Westphal.
> 22) Support EF100 chip in sfc driver, from Edward Cree.
> 23) Add XDP support to mvpp2 driver, from Matteo Croce.
> 24) Support MPTCP in sock_diag, from Paolo Abeni.
> 25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
> infrastructure, from Jakub Kicinski.
> 26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.
> 27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.
> 28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.
> 29) Refactor a lot of networking socket option handling code in
> order to avoid set_fs() calls, from Christoph Hellwig.
> 30) Add rfc4884 support to icmp code, from Willem de Bruijn.
> 31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.
> 32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.
> 33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.
> 34) Support TCP syncookies in MPTCP, from Flowian Westphal.
> 35) Fix several tricky cases of PMTU handling wrt. briding, from
> Stefano Brivio.
> Please pull, thanks a lot!
> The following changes since commit ac3a0c8472969a03c0496ae774b3a29eb26c8d5a:
> Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (2020-08-01 16:47:24 -0700)
> are available in the Git repository at:
Hey David, All,
Just as a heads up, after net-next was merged into Linus' tree, I
started hitting the following crash on boot on the Dragonboard 845c
I've bisected it down to the net-next merge, but haven't bisected it
further yet, as I still have a handful of (unrelated to networking)
out of tree patches needed to boot the board.
[ 19.709492] Unable to handle kernel access to user memory outside
uaccess routines at virtual address 0000006f53337070
[ 19.726539] Mem abort info:
[ 19.726544] ESR = 0x9600000f
[ 19.741323] EC = 0x25: DABT (current EL), IL = 32 bits
[ 19.741326] SET = 0, FnV = 0
[ 19.761185] EA = 0, S1PTW = 0
[ 19.761188] Data abort info:
[ 19.761190] ISV = 0, ISS = 0x0000000f
[ 19.761192] CM = 0, WnR = 0
[ 19.761199] user pgtable: 4k pages, 39-bit VAs, pgdp=000000016e9e9000
[ 19.777584] [0000006f53337070] pgd=000000016e99e003,
p4d=000000016e99e003, pud=000000016e99e003, pmd=000000016e99a003,
[ 19.789205] Internal error: Oops: 9600000f [#1] PREEMPT SMP
[ 19.789211] Modules linked in:
[ 19.797153] CPU: 7 PID: 364 Comm: iptables-restor Tainted: G
W 5.8.0-mainline-08255-gf9e74a8eb6f3 #3350
[ 19.797156] Hardware name: Thundercomm Dragonboard 845c (DT)
[ 19.797161] pstate: a0400005 (NzCv daif +PAN -UAO BTYPE=--)
[ 19.797177] pc : do_ipt_set_ctl+0x304/0x610
[ 19.807891] lr : do_ipt_set_ctl+0x50/0x610
[ 19.807894] sp : ffffffc0139bbba0
[ 19.807898] x29: ffffffc0139bbba0 x28: ffffff80f07a3800
[ 19.846468] x27: 0000000000000000 x26: 0000000000000000
[ 19.846472] x25: 0000000000000000 x24: 0000000000000698
[ 19.846476] x23: ffffffec8eb0cc80 x22: 0000000000000040
[ 19.846480] x21: b400006f53337070 x20: ffffffec8eb0c000
[ 19.846484] x19: ffffffec8e9e9000 x18: 0000000000000000
[ 19.846487] x17: 0000000000000000 x16: 0000000000000000
[ 19.846491] x15: 0000000000000000 x14: 0000000000000000
[ 19.846495] x13: 0000000000000000 x12: 0000000000000000
[ 19.846501] x11: 0000000000000000 x10: 0000000000000000
[ 19.856005] x9 : 0000000000000000 x8 : 0000000000000000
[ 19.856008] x7 : ffffffec8e9e9d08 x6 : 0000000000000000
[ 19.856012] x5 : 0000000000000000 x4 : 0000000000000213
[ 19.856015] x3 : 00000001ffdeffef x2 : 11ded3fb0bb85e00
[ 19.856019] x1 : 0000000000000027 x0 : 0000008000000000
[ 19.856024] Call trace:
[ 19.866319] do_ipt_set_ctl+0x304/0x610
[ 19.866327] nf_setsockopt+0x64/0xa8
[ 19.866332] ip_setsockopt+0x21c/0x1710
[ 19.866338] raw_setsockopt+0x50/0x1b8
[ 19.866347] sock_common_setsockopt+0x50/0x68
[ 19.882672] __sys_setsockopt+0x120/0x1c8
[ 19.882677] __arm64_sys_setsockopt+0x30/0x40
[ 19.882686] el0_svc_common.constprop.3+0x78/0x188
[ 19.882691] do_el0_svc+0x80/0xa0
[ 19.882699] el0_sync_handler+0x134/0x1a0
[ 19.901555] el0_sync+0x140/0x180
[ 19.901564] Code: aa1503e0 97fffd3e 2a0003f5 17ffff80 (a9401ea6)
[ 19.901569] ---[ end trace 22010e9688ae248f ]---
[ 19.913033] Kernel panic - not syncing: Fatal exception
[ 19.913042] SMP: stopping secondary CPUs
[ 20.138885] Kernel Offset: 0x2c7d080000 from 0xffffffc010000000
[ 20.138887] PHYS_OFFSET: 0xfffffffa80000000
[ 20.138894] CPU features: 0x0040002,2a80a218
[ 20.138898] Memory Limit: none
I'll continue to work on bisecting this down further, but figured I'd
share now as you or someone else might be able to tell whats wrong
from the trace.