Jorge Luis wrote:
> I have applied the patches that Sujith posted last night with the latest
> compat drivers and my HTC now works without issues.
> I have also loaded it with 6 more stations and it worked fine for a
> while but after a few minutes I got a kernel trace.
> The system is an IBM T61 with Fedora14 i386 and the latest packages.
> Trace bellow:
>
> [ 3472.324853] ------------[ cut here ]------------
> [ 3472.324915] WARNING: at
> /tmp/wireless/compat-wireless-2011-01-20/net/mac80211/tx.c:57
> ieee80211_duration+0x54/0x1b9 [mac80211]()
> [ 3472.324923] Hardware name: 7661W81
> [ 3472.324928] Modules linked in: tcp_lp 8021q garp bridge stp llc
> ath9k_htc ath9k_common ath9k_hw ath fuse deflate zlib_deflate rfcomm ctr
> camellia cast5 rmd160 crypto_null sco bnep l2cap ccm serpent blowfish
> twofish twofish_common xcbc sha512_generic des_generic geode_aes ah6 ah4
> esp6 esp4 xfrm4_mode_beet xfrm4_tunnel tunnel4 xfrm4_mode_tunnel
> xfrm4_mode_transport xfrm6_mode_transport xfrm6_mode_ro xfrm6_mode_beet
> xfrm6_mode_tunnel ipcomp ipcomp6 xfrm_ipcomp xfrm6_tunnel tunnel6 af_key
> vboxnetadp vboxnetflt vboxdrv sunrpc cpufreq_ondemand acpi_cpufreq mperf
> ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 uinput
> arc4 ecb iwl3945 iwlcore mac80211 btusb cfg80211 snd_hda_codec_analog
> bluetooth snd_hda_intel compat thinkpad_acpi snd_hda_codec rfkill
> snd_hwdep snd_seq snd_seq_device microcode snd_pcm snd_timer wmi snd
> joydev snd_page_alloc iTCO_wdt e1000e soundcore iTCO_vendor_support
> i2c_i801 sha256_generic aes_i586 aes_generic cbc dm_crypt firewire_ohci
> yenta_socket firewire_core crc_itu_t i915 drm_kms_helper drm
> i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan]
> [ 3472.325133] Pid: 0, comm: swapper Not tainted 2.6.35.10-74.fc14.i686 #1
> [ 3472.325140] Call Trace:
> [ 3472.325155] [<c0439435>] warn_slowpath_common+0x6a/0x7f
> [ 3472.325208] [<fb0e4ab3>] ? ieee80211_duration+0x54/0x1b9 [mac80211]
> [ 3472.325220] [<c043945e>] warn_slowpath_null+0x14/0x18
> [ 3472.325272] [<fb0e4ab3>] ieee80211_duration+0x54/0x1b9 [mac80211]
> [ 3472.325316] [<fb0d43d8>] ? ieee80211_crypto_tkip_encrypt+0xcf/0x12e
> [mac80211]
> [ 3472.325366] [<fb0e5e24>] invoke_tx_handlers+0xbbc/0xc45 [mac80211]
> [ 3472.325417] [<fb0e4f10>] ? ieee80211_tx_prepare+0x2f8/0x332 [mac80211]
> [ 3472.325469] [<fb0e5f14>] ieee80211_tx+0x67/0x196 [mac80211]
> [ 3472.325481] [<c045e27d>] ? __raw_local_irq_save+0x19/0x1e
> [ 3472.325497] [<fd718899>] ? ath9k_rx_tasklet+0x77/0x415 [ath9k_htc]
> [ 3472.325552] [<fb0e6df2>] ieee80211_tx_pending+0xe8/0x1d0 [mac80211]
> [ 3472.325563] [<c043e452>] tasklet_action+0x6e/0xb9
> [ 3472.325572] [<c043e876>] __do_softirq+0xa9/0x14a
> [ 3472.325581] [<c043e94a>] do_softirq+0x33/0x3d
> [ 3472.325589] [<c043eb53>] irq_exit+0x31/0x64
> [ 3472.325599] [<c0404c0c>] do_IRQ+0x7d/0x91
> [ 3472.325608] [<c04038f0>] common_interrupt+0x30/0x38
> [ 3472.325618] [<c04500d8>] ? run_posix_cpu_timers+0x494/0x55d
> [ 3472.325631] [<c0614522>] ? raw_local_irq_enable+0xa/0x10
> [ 3472.325640] [<c06151bf>] acpi_idle_enter_bm+0x235/0x26c
> [ 3472.325652] [<c06f4240>] cpuidle_idle_call+0x6e/0xc1
> [ 3472.325661] [<c040214c>] cpu_idle+0x8e/0xaf
> [ 3472.325671] [<c07a2b86>] start_secondary+0x241/0x281
> [ 3472.325693] ---[ end trace 969c737f8b39fc5f ]---
What's your setup ? Can you post your hostapd config ?
Are the stations in legacy mode or HT mode ? Is any station using
powersave ? What kind of traffic is being run ?
The line in question is from net/mac80211/tx.c:
/* uh huh? */
if (WARN_ON_ONCE(info->control.rates[0].idx < 0))
return 0;
Dunno what that "uh huh?" is supposed to mean.
Sujith
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