redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/net
History
David Howells c7e86acfce rxrpc: Fix lockup due to no error backoff after ack transmit error 
If the network becomes (partially) unavailable, say by disabling IPv6, the
background ACK transmission routine can get itself into a tizzy by
proposing immediate ACK retransmission.  Since we're in the call event
processor, that happens immediately without returning to the workqueue
manager.

The condition should clear after a while when either the network comes back
or the call times out.

Fix this by:

 (1) When re-proposing an ACK on failed Tx, don't schedule it immediately.
     This will allow a certain amount of time to elapse before we try
     again.

 (2) Enforce a return to the workqueue manager after a certain number of
     iterations of the call processing loop.

 (3) Add a backoff delay that increases the delay on deferred ACKs by a
     jiffy per failed transmission to a limit of HZ.  The backoff delay is
     cleared on a successful return from kernel_sendmsg().

 (4) Cancel calls immediately if the opening sendmsg fails.  The layer
     above can arrange retransmission or rotate to another server.

Fixes: 248f219cb8 ("rxrpc: Rewrite the data and ack handling code")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2018-11-02 23:59:26 -07:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-07-06 12:32:12 +02:00
9p 9p/trans_fd: put worker reqs on destroy 2018-10-10 09:14:34 +09:00
802
…
8021q netpoll: allow cleanup to be synchronous 2018-10-19 17:01:43 -07:00
appletalk Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
atm Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
ax25 ax25: remove blank line at EOF 2018-07-24 14:10:42 -07:00
batman-adv Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net 2018-09-25 10:35:29 -07:00
bluetooth Merge branch 'work.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-10-25 12:48:22 -07:00
bpf bpf: add tests for direct packet access from CGROUP_SKB 2018-10-19 13:49:34 -07:00
bpfilter net: bpfilter: Set user mode helper's command line 2018-10-22 19:37:36 -07:00
bridge net: bridge: remove ipv6 zero address check in mcast queries 2018-10-28 19:18:09 -07:00
caif Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
can Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ceph The highlights are: 2018-10-31 14:42:31 -07:00
core net: document skb parameter in function 'skb_gso_size_check' 2018-11-02 23:34:37 -07:00
dcb net: dcb: Add priority-to-DSCP map getters 2018-07-27 13:17:50 -07:00
dccp Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
decnet decnet: Remove unnecessary check for dev->name 2018-09-21 19:48:36 -07:00
dns_resolver dns: Allow the dns resolver to retrieve a server set 2018-10-04 09:40:52 -07:00
dsa net: dsa: legacy: simplify getting .driver_data 2018-10-22 19:49:04 -07:00
ethernet net: Convert GRO SKB handling to list_head. 2018-06-26 11:33:04 +09:00
hsr
…
ieee802154 net/ipfrag: let ip[6]frag_high_thresh in ns be higher than in init_net 2018-09-21 19:45:52 -07:00
ife net: sched: ife: check on metadata length 2018-04-22 21:12:00 -04:00
ipv4 net: drop skb on failure in ip_check_defrag() 2018-11-01 13:55:30 -07:00
ipv6 net/ipv6: Add anycast addresses to a global hashtable 2018-11-02 23:54:56 -07:00
iucv Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
kcm Revert "kcm: remove any offset before parsing messages" 2018-09-17 18:43:42 -07:00
key Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next 2018-07-27 09:33:37 -07:00
l2tp l2tp: fix unused function warning 2018-08-13 20:45:49 -07:00
l3mdev
…
lapb
…
llc llc: do not use sk_eat_skb() 2018-10-22 19:59:20 -07:00
mac80211 mac80211: implement ieee80211_tx_rate_update to update rate 2018-10-12 13:05:40 +02:00
mac802154 mac802154: Remove VLA usage of skcipher 2018-09-28 12:46:07 +08:00
mpls net/mpls: Handle kernel side filtering of route dumps 2018-10-16 00:14:07 -07:00
ncsi net/ncsi: Add NCSI Broadcom OEM command 2018-10-17 22:14:54 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf 2018-10-22 20:21:30 -07:00
netlabel netlabel: check for IPV4MASK in addrinfo_get 2018-09-21 18:58:34 -07:00
netlink netlink: Add answer_flags to netlink_callback 2018-10-16 00:13:12 -07:00
netrom Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
nfc Merge branch 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-10-24 14:43:41 +01:00
nsh nsh: set mac len based on inner packet 2018-07-12 16:55:29 -07:00
openvswitch openvswitch: Fix push/pop ethernet validation 2018-10-31 18:37:16 -07:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-06 14:43:42 -07:00
phonet Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
psample
…
qrtr net: qrtr: Reset the node and port ID of broadcast messages 2018-07-05 20:20:03 +09:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-12 21:38:46 -07:00
rfkill Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
rose Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
rxrpc rxrpc: Fix lockup due to no error backoff after ack transmit error 2018-11-02 23:59:26 -07:00
sched net: sched: gred: pass the right attribute to gred_change_table_def() 2018-10-28 19:23:26 -07:00
sctp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-11-01 09:16:01 -07:00
smc net/smc: fix smc_buf_unuse to use the lgr pointer 2018-10-26 15:59:35 -07:00
strparser bpf, sockmap: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
sunrpc Olga added support for the NFSv4.2 asynchronous copy protocol. We 2018-10-30 13:03:29 -07:00
switchdev
…
tipc Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
tls ulp: remove uid and user_visible members 2018-10-20 23:13:32 -07:00
unix Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
vmw_vsock vsock: split dwork to avoid reinitializations 2018-08-07 12:39:13 -07:00
wimax wimax: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
wireless nl80211: Add per peer statistics to compute FCS error rate 2018-10-12 12:56:34 +02:00
x25 x25: remove blank lines at EOF 2018-07-24 14:10:42 -07:00
xdp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-10-19 11:03:06 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-11-01 09:16:01 -07:00
Kconfig bpf, sockmap: convert to generic sk_msg interface 2018-10-15 12:23:19 -07:00
Makefile bpfilter: check compiler capability in Kconfig 2018-06-28 13:36:39 +09:00
compat.c y2038: socket: Change recvmmsg to use __kernel_timespec 2018-08-29 15:42:24 +02:00
socket.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-25 11:14:36 -07:00
sysctl_net.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00