Hello,
using hwcrypt with rt2800pci (with kernel 2.6.39 and
compat-wireless-2011-05-31) as AP (with hostapd in n-mode) and high
network load (created with netperf), produces warnings like this
(sometimes more, sometimes less):
Jun 4 09:44:52 pc kernel: [ 8517.220574] ------------[ cut here
]------------
Jun 4 09:44:52 pc kernel: [ 8517.220595] WARNING: at
/raid/home/andreas/tttt/compat-wireless-2011-05-31/net/mac80211/wpa.c:397 ccmp_encrypt_skb+0xc4/0x1f0
[mac80211]()
Jun 4 09:44:52 pc kernel: [ 8517.220599] Hardware name: GA-MA78G-DS3H
Jun 4 09:44:52 pc kernel: [ 8517.220600] Modules linked in: arc4
rt2800pci rt2800lib crc_ccitt rt2x00pci rt2x00lib mac80211 cfg80211
rfkill eeprom_93cx6 af_packet nls_utf8 snd_pcm_oss snd_mixer_oss snd_seq
snd_seq_device bridge stp llc tun cpufreq_conservative cpufreq_userspace
cpufreq_powersave powernow_k8 mperf fuse fglrx(P) sha256_generic cbc
dm_crypt reiserfs loop dm_mod snd_hda_codec_hdmi snd_hda_codec_realtek
snd_hda_intel snd_hda_codec snd_hwdep snd_pcm shpchp snd_timer snd
kvm_amd soundcore pci_hotplug sp5100_tco sr_mod sg snd_page_alloc r8169
kvm i2c_piix4 pcspkr edac_core edac_mce_amd firewire_ohci firewire_core
cdrom wmi e100 button k8temp crc_itu_t edd fan processor ata_generic
pata_atiixp thermal thermal_sys raid1 [last unloaded: eeprom_93cx6]
Jun 4 09:44:52 pc kernel: [ 8517.220650] Pid: 0, comm: kworker/0:0
Tainted: P W 2.6.39-27-desktop #1
Jun 4 09:44:52 pc kernel: [ 8517.220653] Call Trace:
Jun 4 09:44:52 pc kernel: [ 8517.220665] [<ffffffff81004642>]
dump_trace+0x82/0x370
Jun 4 09:44:52 pc kernel: [ 8517.220670] [<ffffffff81571b70>]
dump_stack+0x69/0x6f
Jun 4 09:44:52 pc kernel: [ 8517.220676] [<ffffffff81058fbb>]
warn_slowpath_common+0x7b/0xc0
Jun 4 09:44:52 pc kernel: [ 8517.220685] [<ffffffffa0693304>]
ccmp_encrypt_skb+0xc4/0x1f0 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220708] [<ffffffffa0693adb>]
ieee80211_crypto_ccmp_encrypt+0x2b/0x50 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220725] [<ffffffffa06acdbd>]
invoke_tx_handlers+0x1fd/0x260 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220767] [<ffffffffa06ace92>]
ieee80211_tx+0x72/0xf0 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220808] [<ffffffffa06acfcb>]
ieee80211_xmit+0xbb/0x1d0 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220849] [<ffffffffa06ad61c>]
ieee80211_subif_start_xmit+0x36c/0x860 [mac80211]
Jun 4 09:44:52 pc kernel: [ 8517.220886] [<ffffffff81473c29>]
dev_hard_start_xmit+0x259/0x5c0
Jun 4 09:44:52 pc kernel: [ 8517.220892] [<ffffffff8148e5eb>]
sch_direct_xmit+0xeb/0x1e0
Jun 4 09:44:52 pc kernel: [ 8517.220897] [<ffffffff8148e787>]
__qdisc_run+0xa7/0x130
Jun 4 09:44:52 pc kernel: [ 8517.220901] [<ffffffff81471803>]
net_tx_action+0xe3/0x200
Jun 4 09:44:52 pc kernel: [ 8517.220906] [<ffffffff8106060d>]
__do_softirq+0xbd/0x260
Jun 4 09:44:52 pc kernel: [ 8517.220912] [<ffffffff8157d1fc>]
call_softirq+0x1c/0x30
Jun 4 09:44:52 pc kernel: [ 8517.220916] [<ffffffff81004585>]
do_softirq+0x65/0xa0
Jun 4 09:44:53 pc kernel: [ 8517.220920] [<ffffffff81060abe>]
irq_exit+0x9e/0xb0
Jun 4 09:44:52 pc hostapd: wlan1: STA 00:25:9c:de:4e:30 IEEE 802.1X:
authorizing port
Jun 4 09:44:53 pc hostapd: wlan1: STA 00:25:9c:de:4e:30 RADIUS:
starting accounting session 4DE9D3E4-0000001C
Jun 4 09:44:53 pc hostapd: wlan1: STA 00:25:9c:de:4e:30 WPA: pairwise
key handshake completed (RSN)
Jun 4 09:44:53 pc kernel: [ 8517.220924] [<ffffffff8100418c>]
do_IRQ+0x5c/0xd0
Jun 4 09:44:53 pc kernel: [ 8517.220928] [<ffffffff815752d3>]
common_interrupt+0x13/0x13
Jun 4 09:44:53 pc kernel: [ 8517.220934] [<ffffffff8102af52>]
native_safe_halt+0x2/0x10
Jun 4 09:44:53 pc kernel: [ 8517.220939] [<ffffffff8100a3c7>]
default_idle+0x47/0x230
Jun 4 09:44:53 pc kernel: [ 8517.220943] [<ffffffff8100a604>]
c1e_idle+0x54/0x110
Jun 4 09:44:53 pc kernel: [ 8517.220952] [<ffffffff810011f6>]
cpu_idle+0x56/0xa0
Jun 4 09:44:53 pc kernel: [ 8517.220956] ---[ end trace
3ce7ff16bfe4412a ]---
Jun 4 09:44:53 pc kernel: [ 8517.220961] ------------[ cut here
]------------
hostapd runs on a dual core machine.
Andreas
On Sat, 2011-06-04 at 10:40 +0200, Andreas Hartmann wrote:
> Jun 4 09:44:52 pc kernel: [ 8517.220574] ------------[ cut here
> ]------------
> Jun 4 09:44:52 pc kernel: [ 8517.220595] WARNING: at
> /raid/home/andreas/tttt/compat-wireless-2011-05-31/net/mac80211/wpa.c:397 ccmp_encrypt_skb+0xc4/0x1f0
This is to blame on
commit aac6af5534fade2b18682a0b9efad1a6c04c34c6
Author: Yogesh Ashok Powar <[email protected]>
Date: Wed Apr 27 18:40:29 2011 +0530
mac80211: Skip tailroom reservation for full HW-crypto devices
John, please revert this for 3.0, Yogesh, please fix the races before
you resubmit.
johannes