#2297: NETDEV WATCHDOG: wifi0 (ath_pci): transmit timed out
--------------------------------------+-------------------------------------
Reporter: sjen...@versanet.de | Owner:
Type: defect | Status: new
Priority: minor | Milestone:
Component: madwifi: driver | Version: trunk
Resolution: | Keywords: watchdog transmit timed
out
Patch_attached: 0 | Pending: 0
--------------------------------------+-------------------------------------
Comment (by ne...@vtkom.com):
It seems that this appears on AP node depending on client usage scenario;
I have 4 similar AP setups, all with same hardware and OS and driver
versions, but it happens only on some of them:
{{{
wifi0: ath_bstuck_tasklet: Stuck beacon; resetting (beacon miss count: 11)
wifi0: ath_bstuck_tasklet: Stuck beacon; resetting (beacon miss count: 11)
wifi0: ath_rxorn_tasklet: Receive FIFO overrun; resetting.
wifi0: ath_rxorn_tasklet: Receive FIFO overrun; resetting.
wifi0: ath_rxorn_tasklet: Receive FIFO overrun; resetting.
------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:219 dev_watchdog+0xd3/0x124()
Hardware name: System Name
NETDEV WATCHDOG: wifi0 (ath_pci): transmit timed out
Modules linked in: ipv6 wlan_wep wlan_scan_sta bridge stp wlan_scan_ap
ext2 dm_multipath wmi video output rfkill input
_polldev sbs sbshc pci_slot container lp ath_rate_sample ath_pci via686a
hwmon wlan ath_hal i2c_viapro ne2k_pci 8390 i
2c_core parport_pc parport pcspkr jffs2 mtdblock mtd_blkdevs block2mtd mtd
sata_via sata_uli sata_sis sata_sil sata_nv
sata_mv ata_generic pata_acpi pata_via pata_sis pata_mpiix pata_marvell
pata_jmicron pata_cs5536 pata_cs5535 pata_cs5
530 pata_cs5520 pata_atiixp pata_amd pata_ali crc_ccitt crc16 zlib_deflate
Pid: 0, comm: swapper Not tainted 2.6.27.21-170.2.56.commuth.2.i586 #1
[<c0426459>] warn_slowpath+0x6c/0x94
[<c0429f00>] ? _local_bh_enable_ip+0x69/0xb4
[<c061c4e9>] ? dev_queue_xmit+0x361/0x380
[<c89e222e>] ? ieee80211_ref_node+0x57/0x61 [wlan]
[<c89e6365>] ? ieee80211_parent_queue_xmit+0x38/0x41 [wlan]
[<c89e737c>] ? ieee80211_hardstart+0x2ef/0x339 [wlan]
[<c0460950>] ? trace_hardirqs_on+0x8/0x1c
[<c0429f3e>] ? _local_bh_enable_ip+0xa7/0xb4
[<c0429f60>] ? local_bh_enable+0xb/0xd
[<c061c4e9>] ? dev_queue_xmit+0x361/0x380
[<c0460950>] ? trace_hardirqs_on+0x8/0x1c
[<c06281b8>] dev_watchdog+0xd3/0x124
[<c0460950>] ? trace_hardirqs_on+0x8/0x1c
[<c042e062>] ? mod_timer+0x30/0x34
[<c06280e5>] ? dev_watchdog+0x0/0x124
[<c042dadb>] run_timer_softirq+0x101/0x16a
[<c06280e5>] ? dev_watchdog+0x0/0x124
[<c042a2fb>] __do_softirq+0x4b/0x94
[<c042a2b0>] ? __do_softirq+0x0/0x94
[<c0405f08>] do_softirq+0x66/0xc7
[<c0458d56>] ? handle_level_irq+0x0/0x78
[<c042a225>] irq_exit+0x37/0x72
[<c0405e8c>] do_IRQ+0xd1/0xe7
[<c0404aa8>] common_interrupt+0x28/0x30
[<c054f52d>] ? acpi_idle_enter_simple+0x111/0x146
[<c05fed6a>] cpuidle_idle_call+0x52/0x84
[<c040250b>] cpu_idle+0x57/0x7d
[<c067b2c8>] rest_init+0x48/0x4a
=======================
---[ end trace 4b24bffcc49b61b3 ]---
wifi0: ath_rxorn_tasklet: Receive FIFO overrun; resetting.
wifi0: ath_rxorn_tasklet: Receive FIFO overrun; resetting.
}}}
More interesting, it seems that it is not something that happens only to
madwifi - it happens to lot of other network drivers, see for example bug
475138 on bugzilla.redhat.com
Even more problems are reported with tg3, e1000, ... GigE adapters. All of
them running on kernel 2.6.27.something
--
Ticket URL: <http://madwifi-project.org/ticket/2297#comment:3>
madwifi-project.org <http://madwifi-project.org/>
Multiband Atheros Driver for Wireless Fidelity
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