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59615b5f9d
linux/net/mac80211
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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
..
aes_ccm.c mac80211: aes_ccm.c remove crypto wrapper and extra args 2008-07-08 14:16:02 -04:00
aes_ccm.h mac80211: pass scratch buffer directly, remove additional pointers 2008-07-08 14:16:02 -04:00
aes_cmac.c mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
aes_cmac.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00
agg-rx.c mac80211: Add a timeout for frames in the RX reorder buffer 2009-05-06 15:15:04 -04:00
agg-tx.c mac80211: Fix the way ADDBA request count being modified 2009-06-10 13:28:38 -04:00
cfg.c mac80211: don't use master netdev name 2009-06-10 13:28:39 -04:00
cfg.h [MAC80211]: rename ieee80211_cfg.h to cfg.h 2007-10-10 16:52:34 -07:00
debugfs_key.c mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_key.h mac80211: 802.11w - Use BIP (AES-128-CMAC) 2009-01-29 16:00:03 -05:00
debugfs_netdev.c mac80211: split IBSS/managed code 2009-02-27 14:51:42 -05:00
debugfs_netdev.h mac80211: revamp virtual interface handling 2008-07-14 14:30:07 -04:00
debugfs_sta.c mac80211: 802.11w - STA flag for MFP 2009-01-29 16:00:00 -05:00
debugfs_sta.h mac80211: RCU-ify STA info structure access 2008-03-06 15:30:46 -05:00
debugfs.c mac80211: add queue debugfs file 2009-06-15 15:05:57 -04:00
debugfs.h
driver-ops.h cfg80211: add rfkill support 2009-06-03 14:06:14 -04:00
event.c nl80211: Add Michael MIC failure event 2009-04-22 16:54:28 -04:00
ht.c cfg80211: clean up includes 2009-04-22 16:57:17 -04:00
ibss.c mac80211: fix parameter confusion when finding IBSS 2009-05-20 14:46:36 -04:00
ieee80211_i.h mac80211: disconnect when user changes channel 2009-06-15 15:05:58 -04:00
iface.c cfg80211: add rfkill support 2009-06-03 14:06:14 -04:00
Kconfig cfg80211: fix Kconfig for users of cfg80211 2009-06-03 14:09:08 -04:00
key.c nl80211: Validate NL80211_ATTR_KEY_SEQ length 2009-05-20 14:46:25 -04:00
key.h nl80211: Add RSC configuration for new keys 2009-05-13 15:44:39 -04:00
led.c mac80211: rename files 2008-04-08 16:44:45 -04:00
led.h mac80211: rename files 2008-04-08 16:44:45 -04:00
main.c mac80211: do not pass PS frames out of mac80211 again 2009-06-10 13:28:37 -04:00
Makefile mac80211: split IBSS/managed code 2009-02-27 14:51:42 -05:00
mesh_hwmp.c mac80211: fix allocation in mesh_queue_preq 2009-07-07 12:55:27 -04:00
mesh_pathtbl.c mac80211: mesh portal functionality support 2008-09-24 16:18:02 -04:00
mesh_plink.c mac80211: cancel/restart all timers across suspend/resume 2009-05-20 14:46:25 -04:00
mesh.c mac80211: Use rcu_barrier() on unload. 2009-06-26 13:51:36 -07:00
mesh.h wireless: move some utility functions from mac80211 to cfg80211 2009-05-22 14:06:02 -04:00
michael.c mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
michael.h mac80211: remove ieee80211_get_hdr_info 2008-07-08 14:16:01 -04:00
mlme.c mac80211: fix wext bssid/ssid setting 2009-06-15 15:05:59 -04:00
pm.c mac80211: cancel/restart all timers across suspend/resume 2009-05-20 14:46:25 -04:00
rate.c mac80211: rate control status only for controlled packets 2009-03-27 20:13:15 -04:00
rate.h mac80211: rate control status only for controlled packets 2009-03-27 20:13:15 -04:00
rc80211_minstrel_debugfs.c mac80211: correct warnings in minstrel rate control algorithm 2008-10-27 17:46:11 -04:00
rc80211_minstrel.c mac80211: fix minstrel single-rate memory corruption 2009-06-10 13:27:51 -04:00
rc80211_minstrel.h minstrel: improve performance for non-MRR drivers 2008-10-31 19:00:36 -04:00
rc80211_pid_algo.c Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-05-18 21:08:20 -07:00
rc80211_pid_debugfs.c mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rc80211_pid.h mac80211/drivers: rewrite the rate control API 2008-10-31 19:00:23 -04:00
rx.c mac80211: do not pass PS frames out of mac80211 again 2009-06-10 13:28:37 -04:00
scan.c mac80211: cancel/restart all timers across suspend/resume 2009-05-20 14:46:25 -04:00
spectmgmt.c mac80211: move channel switch code 2009-05-20 14:46:25 -04:00
sta_info.c mac80211: extend sta kdoc - explain when they are added 2009-06-03 14:06:15 -04:00
sta_info.h mac80211: fix kernel-doc 2009-05-20 14:46:32 -04:00
tkip.c mac80211: add driver ops wrappers 2009-05-06 15:14:37 -04:00
tkip.h mac80211: tkip.c consolidate tkip IV writing in helper 2008-06-14 12:18:13 -04:00
tx.c net: use symbolic values for ndo_start_xmit() return codes 2009-06-13 01:18:50 -07:00
util.c mac80211: disconnect when user changes channel 2009-06-15 15:05:58 -04:00
wep.c mac80211: rewrite fragmentation 2009-03-27 20:13:21 -04:00
wep.h mac80211: minor code cleanups 2008-10-31 18:05:59 -04:00
wext.c mac80211: disconnect when user changes channel 2009-06-15 15:05:58 -04:00
wme.c mac80211: do not pass PS frames out of mac80211 again 2009-06-10 13:28:37 -04:00
wme.h mac80211: fix aggregation for hardware with ampdu queues 2009-02-27 14:51:42 -05:00
wpa.c nl80211: Add Michael MIC failure event 2009-04-22 16:54:28 -04:00
wpa.h mac80211: 802.11w - Add BIP (AES-128-CMAC) 2009-01-29 16:00:02 -05:00