Error: em0: Watchdog timeout -- resetting

[Vladislav V. Prodan]

It was the motherboard from Supermicro, or another manufacturer?
Have you tried to deal with this problem in support of the manufacturer?


25.08.2010 1:20, marek3 at intranetplanet.com wrote:
> I had the same issue six months ago with a test server. I did not find a
> solution. I'm very much would like to see if you do find one. Thanks.
> Marek
> 
>> The server is sometimes off the network card.
>> It helps just to restart via KVM-IPMI.
>>
>> MotherBoard: X8SIL/X8SIL-F
>> BIOS Version:	1.0c
>> Build Date:	02/05/10
>>
>> OS: FreeBSD 8.1-RELEASE, FreeBSD 8.1-STABLE, FreeBSD 9.0-CURRENT
>>
>> What would you recommend to address the problem?
>>
>>
>> # uname -a
>> FreeBSD solo.XXX.biz 9.0-CURRENT FreeBSD 9.0-CURRENT #0: Tue Aug 24
>> 15:52:21 EEST 2010     root at solo.XXX.biz:/usr/obj/usr/src/sys/solo.2
>> amd64
>>
>> #pciconf -lv
>> ...
>> em0 at pci0:2:0:0: class=0x020000 card=0x060515d9 chip=0x10d38086 rev=0x00
>> hdr=0x00
>>     vendor     = 'Intel Corporation'
>>     device     = 'Intel 82574L Gigabit Ethernet Controller (82574L)'
>>     class      = network
>>     subclass   = ethernet
>> em1 at pci0:3:0:0: class=0x020000 card=0x060515d9 chip=0x10d38086 rev=0x00
>> hdr=0x00
>>     vendor     = 'Intel Corporation'
>>     device     = 'Intel 82574L Gigabit Ethernet Controller (82574L)'
>>     class      = network
>>     subclass   = ethernet
>> ...
>>
>> In /usr/src/sys/dev/e1000/if_em.c:
>>
>> static void
>> em_local_timer(void *arg)
>> {
>> 	struct adapter	*adapter = arg;
>> 	struct ifnet	*ifp = adapter->ifp;
>> 	struct tx_ring	*txr = adapter->tx_rings;
>>
>> 	EM_CORE_LOCK_ASSERT(adapter);
>>
>> 	em_update_link_status(adapter);
>> 	em_update_stats_counters(adapter);
>>
>> 	/* Reset LAA into RAR[0] on 82571 */
>> 	if (e1000_get_laa_state_82571(&adapter->hw) == TRUE)
>> 		e1000_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
>>
>> 	/*
>> 	** Check for time since any descriptor was cleaned
>> 	*/
>> 	for (int i = 0; i < adapter->num_queues; i++, txr++) {
>> 		EM_TX_LOCK(txr);
>> 		if (txr->watchdog_check == FALSE) {
>> 			EM_TX_UNLOCK(txr);
>> 			continue;
>> 		}
>> 		if ((ticks - txr->watchdog_time) > EM_WATCHDOG)
>> 			goto hung;
>> 		EM_TX_UNLOCK(txr);
>> 	}
>>
>> 	callout_reset(&adapter->timer, hz, em_local_timer, adapter);
>> 	return;
>> hung:
>> 	device_printf(adapter->dev, "Watchdog timeout -- resetting\n");
>> 	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
>> 	adapter->watchdog_events++;
>> 	EM_TX_UNLOCK(txr);
>> 	em_init_locked(adapter);
>> }
>>
>> Someone will finish the piece for debugging, to further diagnose the
>> error?
>>
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> 
> 
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