linux_dsm_epyc7002/net
Eric Dumazet 50ce163a72 tcp: tcp_grow_window() needs to respect tcp_space()
For some reason, tcp_grow_window() correctly tests if enough room
is present before attempting to increase tp->rcv_ssthresh,
but does not prevent it to grow past tcp_space()

This is causing hard to debug issues, like failing
the (__tcp_select_window(sk) >= tp->rcv_wnd) test
in __tcp_ack_snd_check(), causing ACK delays and possibly
slow flows.

Depending on tcp_rmem[2], MTU, skb->len/skb->truesize ratio,
we can see the problem happening on "netperf -t TCP_RR -- -r 2000,2000"
after about 60 round trips, when the active side no longer sends
immediate acks.

This bug predates git history.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-16 21:47:39 -07:00
..
6lowpan 6lowpan: fix debugfs_simple_attr.cocci warnings 2019-01-22 09:51:19 +01:00
9p 9p/net: fix memory leak in p9_client_create 2019-03-13 11:50:04 +01:00
802
8021q vlan: conditional inclusion of FCoE hooks to match netdevice.h and bnx2x 2019-04-04 17:18:34 -07:00
appletalk appletalk: Fix potential NULL pointer dereference in unregister_snap_client 2019-03-15 11:25:48 -07:00
atm net: atm: Fix potential Spectre v1 vulnerabilities 2019-04-16 21:01:45 -07:00
ax25 ax25: fix possible use-after-free 2019-01-23 11:18:00 -08:00
batman-adv batman-adv: Fix genl notification for throughput_override 2019-03-25 09:31:19 +01:00
bluetooth Bluetooth: Check address length before reading address field 2019-04-12 10:25:03 -07:00
bpf bpf: fix warning about using plain integer as NULL 2019-03-08 21:17:07 +01:00
bpfilter bpfilter: re-add header search paths to tools include to fix build error 2019-02-23 13:34:40 -08:00
bridge net: bridge: fix netlink export of vlan_stats_per_port option 2019-04-16 21:40:29 -07:00
caif net: caif: use skb helpers instead of open-coding them 2019-02-17 11:01:17 -08:00
can can: bcm: check timer values before ktime conversion 2019-01-22 11:33:46 +01:00
ceph libceph: fix breakage caused by multipage bvecs 2019-03-25 22:28:07 +01:00
core net: Fix missing meta data in skb with vlan packet 2019-04-16 21:29:38 -07:00
dcb
dccp dccp: Fix memleak in __feat_register_sp 2019-04-01 18:15:10 -07:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-29 21:18:54 -08:00
dns_resolver dns: Allow the dns resolver to retrieve a server set 2018-10-04 09:40:52 -07:00
dsa net: dsa: Implement flow_dissect callback for tag_qca 2019-03-28 16:57:19 -07:00
ethernet net/ethernet: Add parse_protocol header_ops support 2019-02-22 12:55:31 -08:00
hsr net/hsr: fix possible crash in add_timer() 2019-03-07 11:02:08 -08:00
ieee802154 net: remove unused struct inet_frag_queue.fragments field 2019-02-26 08:27:05 -08:00
ife
ipv4 tcp: tcp_grow_window() needs to respect tcp_space() 2019-04-16 21:47:39 -07:00
ipv6 route: Avoid crash from dereferencing NULL rt->from 2019-04-15 13:31:59 -07:00
iucv iucv: Remove SKB list assumptions. 2018-11-10 16:55:11 -08:00
kcm kcm: switch order of device registration to fix a crash 2019-04-01 14:59:20 -07:00
key af_key: unconditionally clone on broadcast 2019-02-12 10:36:42 +01:00
l2tp l2tp: fix infoleak in l2tp_ip6_recvmsg() 2019-03-13 14:19:35 -07:00
l3mdev l3mdev: add function to retreive upper master 2018-12-03 14:15:26 -08:00
lapb
llc llc: Check address length before reading address field 2019-04-12 10:25:03 -07:00
mac80211 mac80211: Honor SW_CRYPTO_CONTROL for unicast keys in AP VLAN mode 2019-04-09 13:40:32 +02:00
mac802154 mac802154: Remove VLA usage of skcipher 2018-09-28 12:46:07 +08:00
mpls mpls: Fix 6PE forwarding 2019-03-19 16:00:22 -07:00
ncsi net: ncsi: fix a missing check for nla_nest_start 2019-03-16 11:44:33 -07:00
netfilter netfilter: nf_tables: add missing ->release_ops() in error path of newrule() 2019-03-20 08:32:58 +01:00
netlabel netlabel: fix out-of-bounds memory accesses 2019-02-27 21:45:24 -08:00
netlink net: netlink: Check address length before reading groups field 2019-04-12 10:25:03 -07:00
netrom net: netrom: Fix error cleanup path of nr_proto_init 2019-04-11 13:59:49 -07:00
nfc NFC: nci: Add some bounds checking in nci_hci_cmd_received() 2019-04-06 15:05:07 -07:00
nsh
openvswitch openvswitch: fix flow actions reallocation 2019-03-28 17:15:44 -07:00
packet net/packet: Set __GFP_NOWARN upon allocation in alloc_pg_vec 2019-03-20 10:46:50 -07:00
phonet phonet: fix building with clang 2019-02-21 16:23:56 -08:00
psample
qrtr mm: replace all open encodings for NUMA_NO_NODE 2019-03-05 21:07:14 -08:00
rds net/rds: Check address length before reading address family 2019-04-12 10:25:03 -07:00
rfkill rfkill: gpio: Remove unused include 2018-12-18 13:13:56 +01:00
rose net: rose: fix a possible stack overflow 2019-03-18 16:53:22 -07:00
rxrpc rxrpc: Fix detection of out of order acks 2019-04-12 16:57:23 -07:00
sched sch_cake: Make sure we can write the IP header before changing DSCP bits 2019-04-04 10:55:59 -07:00
sctp sctp: Check address length before reading address family 2019-04-12 10:25:03 -07:00
smc net/smc: move unhash before release of clcsock 2019-04-11 11:04:08 -07:00
strparser net: strparser: partially revert "strparser: Call skb_unclone conditionally" 2019-04-10 13:07:02 -07:00
sunrpc SUNRPC: fix uninitialized variable warning 2019-03-26 13:04:32 -07:00
switchdev switchdev: Remove unused transaction item queue 2019-03-01 21:35:19 -08:00
tipc tipc: set sysctl_tipc_rmem and named_timeout right range 2019-04-16 21:32:02 -07:00
tls net/tls: fix build without CONFIG_TLS_DEVICE 2019-04-10 17:23:26 -07:00
unix io_uring-2019-03-06 2019-03-08 14:48:40 -08:00
vmw_vsock vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock 2019-03-08 15:15:44 -08:00
wimax
wireless nl80211: Add NL80211_FLAG_CLEAR_SKB flag for other NL commands 2019-03-29 11:23:09 +01:00
x25 net/x25: reset state in x25_connect() 2019-03-11 15:40:14 -07:00
xdp xsk: fix umem memory leak on cleanup 2019-03-16 01:27:51 +01:00
xfrm xfrm: Fix inbound traffic via XFRM interfaces across network namespaces 2019-02-18 10:58:54 +01:00
compat.c Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-03-05 14:08:26 -08:00
Kconfig net: devlink: turn devlink into a built-in 2019-02-26 08:49:05 -08:00
Makefile net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
socket.c net: add documentation to socket.c 2019-03-15 15:29:47 -07:00
sysctl_net.c