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0a7606c121
linux/net
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David S. Miller 0a7606c121 [NET]: Fix race between poll_napi() and net_rx_action() 
netpoll_poll_lock() synchronizes the ->poll() invocation
code paths, but once we have the lock we have to make
sure that NAPI_STATE_SCHED is still set.  Otherwise we
get:

	cpu 0			cpu 1

	net_rx_action()		poll_napi()
	netpoll_poll_lock()	... spin on ->poll_lock
	->poll()
	  netif_rx_complete
	netpoll_poll_unlock()	acquire ->poll_lock()
				->poll()
				 netif_rx_complete()
				 CRASH

Based upon a bug report from Tina Yang.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-29 22:37:28 -07:00
..
9p [9P]: Fix missing unlock before return in p9_mux_poll_start 2007-10-23 21:27:54 -07:00
802 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
8021q [8021Q]: transfer dev_id from real device 2007-10-10 16:54:56 -07:00
appletalk [NET]: sparse warning fixes 2007-10-10 16:54:48 -07:00
atm [BR2684]: get rid of broken header code. 2007-10-17 19:39:22 -07:00
ax25 Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
bluetooth [Bluetooth] Convert RFCOMM to use kthread API 2007-10-22 02:59:49 -07:00
bridge Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
core [NET]: Fix race between poll_napi() and net_rx_action() 2007-10-29 22:37:28 -07:00
dccp [CCID2/3]: Initialisation assignments of 0 are redundant 2007-10-24 10:53:01 -02:00
decnet [NETFILTER]: Replace sk_buff ** with sk_buff * 2007-10-15 12:26:29 -07:00
econet [NET]: Wrap netdevice hardware header creation. 2007-10-10 16:52:50 -07:00
ethernet [NET]: Validate device addr prior to interface-up 2007-10-23 21:27:50 -07:00
ieee80211 SG: Change sg_set_page() to take length and offset argument 2007-10-24 11:20:47 +02:00
ipv4 [TCP] MD5: Remove some more unnecessary casting. 2007-10-29 22:37:27 -07:00
ipv6 [TCP] MD5: Remove some more unnecessary casting. 2007-10-29 22:37:27 -07:00
ipx [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
irda [IRDA]: Make ircomm_tty static. 2007-10-26 03:56:43 -07:00
iucv Fix misspellings of "system", "controller", "interrupt" and "necessary". 2007-10-19 23:10:43 +02:00
key [IPSEC]: Lock state when copying non-atomic fields to user-space 2007-10-10 16:55:02 -07:00
lapb
llc Use helpers to obtain task pid in printks 2007-10-19 11:53:43 -07:00
mac80211 [PATCH] mac80211: fix printk warning on 64-bit 2007-10-26 00:14:29 -04:00
netfilter more UTF-8 conversions 2007-10-19 23:22:11 +02:00
netlabel [NetLabel]: correct usage of RCU locking 2007-10-26 04:29:08 -07:00
netlink [NET]: Marking struct pernet_operations __net_initdata was inappropriate 2007-10-26 22:54:53 -07:00
netrom [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
packet [PACKET]: Kill unused pg_vec_endpage() function 2007-10-18 21:58:19 -07:00
rfkill get rid of input BIT* duplicate defines 2007-10-19 11:53:42 -07:00
rose [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
rxrpc [CRYPTO] users: Fix up scatterlist conversion errors 2007-10-27 00:52:07 -07:00
sched [NET_CLS_ACT]: Use skb_act_clone 2007-10-26 02:47:54 -07:00
sctp SCTP endianness annotations regression 2007-10-29 07:41:32 -07:00
sunrpc SUNRPC endianness annotations 2007-10-29 07:41:32 -07:00
tipc [NET]: Wrap netdevice hardware header creation. 2007-10-10 16:52:50 -07:00
unix pid namespaces: changes to show virtual ids to user 2007-10-19 11:53:40 -07:00
wanrouter [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
wireless Driver core: change add_uevent_var to use a struct 2007-10-12 14:51:01 -07:00
x25 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
xfrm [IPSEC]: Fix scatterlist handling in skb_icv_walk(). 2007-10-26 00:39:27 -07:00
compat.c O_CLOEXEC for SCM_RIGHTS 2007-07-16 09:05:45 -07:00
Kconfig [NET]: Add network namespace clone & unshare support. 2007-10-10 16:52:46 -07:00
Makefile 9p: Reorganization of 9p file system code 2007-07-14 15:13:40 -05:00
nonet.c
socket.c r/o bind mounts: filesystem helpers for custom 'struct file's 2007-10-17 08:43:04 -07:00
sysctl_net.c
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