alistair23-linux/net
Andrey Yurovsky 59615b5f9d mac80211: fix allocation in mesh_queue_preq
We allocate a PREQ queue node in mesh_queue_preq, however the allocation
may cause us to sleep.  Use GFP_ATOMIC to prevent this.

[ 1869.126498] BUG: scheduling while atomic: ping/1859/0x10000100
[ 1869.127164] Modules linked in: ath5k mac80211 ath
[ 1869.128310] Pid: 1859, comm: ping Not tainted 2.6.30-wl #1
[ 1869.128754] Call Trace:
[ 1869.129293]  [<c1023a2b>] __schedule_bug+0x48/0x4d
[ 1869.129866]  [<c13b5533>] __schedule+0x77/0x67a
[ 1869.130544]  [<c1026f2e>] ? release_console_sem+0x17d/0x185
[ 1869.131568]  [<c807cf47>] ? mesh_queue_preq+0x2b/0x165 [mac80211]
[ 1869.132318]  [<c13b5b3e>] schedule+0x8/0x1f
[ 1869.132807]  [<c1023c12>] __cond_resched+0x16/0x2f
[ 1869.133478]  [<c13b5bf0>] _cond_resched+0x27/0x32
[ 1869.134191]  [<c108a370>] kmem_cache_alloc+0x1c/0xcf
[ 1869.134714]  [<c10273ae>] ? printk+0x15/0x17
[ 1869.135670]  [<c807cf47>] mesh_queue_preq+0x2b/0x165 [mac80211]
[ 1869.136731]  [<c807d1f8>] mesh_nexthop_lookup+0xee/0x12d [mac80211]
[ 1869.138130]  [<c807417e>] ieee80211_xmit+0xe6/0x2b2 [mac80211]
[ 1869.138935]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.139831]  [<c80c97bc>] ? ath5k_tasklet_rx+0xba/0x506 [ath5k]
[ 1869.140863]  [<c8075191>] ieee80211_subif_start_xmit+0x6c9/0x6e4
[mac80211]
[ 1869.141665]  [<c105cf1c>] ? handle_level_irq+0x78/0x9d
[ 1869.142390]  [<c12e3f93>] dev_hard_start_xmit+0x168/0x1c7
[ 1869.143092]  [<c12f1f17>] __qdisc_run+0xe1/0x1b7
[ 1869.143612]  [<c12e25ff>] qdisc_run+0x18/0x1a
[ 1869.144248]  [<c12e62f4>] dev_queue_xmit+0x16a/0x25a
[ 1869.144785]  [<c13b6dcc>] ? _read_unlock_bh+0xe/0x10
[ 1869.145465]  [<c12eacdb>] neigh_resolve_output+0x19c/0x1c7
[ 1869.146182]  [<c130e2da>] ? ip_finish_output+0x0/0x51
[ 1869.146697]  [<c130e2a0>] ip_finish_output2+0x182/0x1bc
[ 1869.147358]  [<c130e327>] ip_finish_output+0x4d/0x51
[ 1869.147863]  [<c130e9d5>] ip_output+0x80/0x85
[ 1869.148515]  [<c130cc49>] dst_output+0x9/0xb
[ 1869.149141]  [<c130dec6>] ip_local_out+0x17/0x1a
[ 1869.149632]  [<c130e0bc>] ip_push_pending_frames+0x1f3/0x255
[ 1869.150343]  [<c13247ff>] raw_sendmsg+0x5e6/0x667
[ 1869.150883]  [<c1033c55>] ? insert_work+0x6a/0x73
[ 1869.151834]  [<c8071e00>] ?
ieee80211_invoke_rx_handlers+0x17da/0x1ae8 [mac80211]
[ 1869.152630]  [<c132bd68>] inet_sendmsg+0x3b/0x48
[ 1869.153232]  [<c12d7deb>] __sock_sendmsg+0x45/0x4e
[ 1869.153740]  [<c12d8537>] sock_sendmsg+0xb8/0xce
[ 1869.154519]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.155289]  [<c1036b25>] ? autoremove_wake_function+0x0/0x30
[ 1869.155859]  [<c115992b>] ? __copy_from_user_ll+0x11/0xce
[ 1869.156573]  [<c1159d99>] ? copy_from_user+0x31/0x54
[ 1869.157235]  [<c12df646>] ? verify_iovec+0x40/0x6e
[ 1869.157778]  [<c12d869a>] sys_sendmsg+0x14d/0x1a5
[ 1869.158714]  [<c8072c40>] ? __ieee80211_rx+0x49e/0x4ee [mac80211]
[ 1869.159641]  [<c80c83fe>] ? ath5k_rxbuf_setup+0x6d/0x8d [ath5k]
[ 1869.160543]  [<c80be46d>] ? ath5k_hw_setup_rx_desc+0x0/0x66 [ath5k]
[ 1869.161434]  [<c80beba4>] ? ath5k_hw_get_rxdp+0xe/0x10 [ath5k]
[ 1869.162319]  [<c80c97bc>] ? ath5k_tasklet_rx+0xba/0x506 [ath5k]
[ 1869.163063]  [<c1005627>] ? enable_8259A_irq+0x40/0x43
[ 1869.163594]  [<c101edb8>] ? __dequeue_entity+0x23/0x27
[ 1869.164793]  [<c100187a>] ? __switch_to+0x2b/0x105
[ 1869.165442]  [<c1021d5f>] ? finish_task_switch+0x5b/0x74
[ 1869.166129]  [<c12d963a>] sys_socketcall+0x14b/0x17b
[ 1869.166612]  [<c1002b95>] syscall_call+0x7/0xb

Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2009-07-07 12:55:27 -04:00
..
9p net/9p: Fix crash due to bad mount parameters. 2009-07-02 13:17:01 -07:00
802
8021q 8021q: Vlan driver should use rcu_barrier() on unload instead of syncronize_net() 2009-06-10 01:11:22 -07:00
appletalk net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
atm atm: sk_wmem_alloc initial value is one 2009-06-18 00:29:12 -07:00
ax25 net: Move rx skb_orphan call to where needed 2009-06-23 16:36:25 -07:00
bluetooth net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
bridge bridge: Use rcu_barrier() instead of syncronize_net() on unload. 2009-06-26 13:51:32 -07:00
can can: af_can.c use rcu_barrier() on module unload. 2009-06-10 01:11:24 -07:00
core gro: Flush GRO packets in napi_disable_pending path 2009-06-26 19:27:04 -07:00
dcb
dccp ipv6: Use correct data types for ICMPv6 type and code 2009-06-23 04:31:07 -07:00
decnet decnet: Use rcu_barrier() on module unload. 2009-06-26 13:51:27 -07:00
dsa dsa: fix 88e6xxx statistics counter snapshotting 2009-07-05 18:03:35 -07:00
econet net: sk_wmem_alloc has initial value of one, not zero 2009-06-17 04:31:25 -07:00
ethernet
ieee802154 nl802154: add module license and description 2009-06-29 18:20:28 +04:00
ipv4 xfrm4: fix the ports decode of sctp protocol 2009-07-03 19:10:06 -07:00
ipv6 IPv6: preferred lifetime of address not getting updated 2009-07-03 19:10:13 -07:00
ipx net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
irda net: Move rx skb_orphan call to where needed 2009-06-23 16:36:25 -07:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-22 11:57:09 -07:00
key net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
lapb
llc net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
mac80211 mac80211: fix allocation in mesh_queue_preq 2009-07-07 12:55:27 -04:00
netfilter netfilter: xtables: conntrack match revision 2 2009-06-29 14:31:46 +02:00
netlabel
netlink net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
netrom net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
packet net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
phonet Phonet: generate Netlink RTM_DELADDR when destroying a device 2009-06-25 02:58:16 -07:00
rds
rfkill rfkill: export persistent attribute in sysfs 2009-06-19 11:50:18 -04:00
rose net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
rxrpc RxRPC: Don't attempt to reuse aborted connections 2009-06-16 21:20:14 -07:00
sched net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
sctp sctp: fix warning at inet_sock_destruct() while release sctp socket 2009-07-06 12:47:08 -07:00
sunrpc sunrpc: Use rcu_barrier() on unload. 2009-06-26 13:51:34 -07:00
tipc
unix net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
wanrouter
wimax wimax: fix warning caused by not checking retval of rfkill_set_hw_state() 2009-06-11 11:12:48 -07:00
wireless Wireless: nl80211, fix lock imbalance 2009-07-07 12:55:25 -04:00
x25 net: correct off-by-one write allocations reports 2009-06-18 00:29:12 -07:00
xfrm xfrm: use xfrm_addr_cmp() instead of compare addresses directly 2009-06-29 19:41:46 -07:00
compat.c
Kconfig net: add IEEE 802.15.4 socket family implementation 2009-06-09 05:25:32 -07:00
Makefile net: add IEEE 802.15.4 socket family implementation 2009-06-09 05:25:32 -07:00
nonet.c
socket.c
sysctl_net.c
TUNABLE