> Date: Fri, 29 Jul 2011 10:16:13 -0400
> From: konrad.wilk@xxxxxxxxxx
> To: tinnycloud@xxxxxxxxxxx; mchan@xxxxxxxxxxxx
> CC: xen-devel@xxxxxxxxxxxxxxxxxxx; mchan@xxxxxxxxxxxx
> Subject: Re: [Xen-devel] RE: bnx2 FTQ issues on 2.6.32 + xen 4.0.1;
>
> On Mon, Jul 04, 2011 at 03:09:06PM +0800, MaoXiaoyun wrote:
> >
> > Hi:
> >
> > I've spent more time on this.
> > It's easy to reproduce. I have two physical host, on top of which, totally start 15VMS, doing migrating over
> > and over again. Since xen live migration invovle large mount of memory copy, so I can see that the network is
> > saturated. About 16 hours later, the FTQ dump will show up.
> >
> > I've debugged more.
> > Below debug code is added when FTQ happens.
> > Does anyone know what is going on?
>
> No idea. Did Michael Chan send you a private email with some ideas?
>
Yep, Michael give me some debug patch. But unfortunately, when this bug show up, there is no enough time for the
kernel to print all debugged log before it crashes.
What a headache.
>
> > Thanks.
> >
> > --------------
> > static void
> > bnx2_tx_timeout(struct net_device *dev)
> > {
> > struct bnx2 *bp = netdev_priv(dev);
> > struct bnx2_napi *bnapi = &bp->bnx2_napi[0];
> > struct bnx2_tx_ring_info *txr = &bnapi->tx_ring;
> > struct bnx2_rx_ring_info *rxr = &bnapi->rx_ring;
> > int i ;
> >
> > bnx2_dump_ftq(bp);
> > bnx2_dump_state(bp);
> >
> > if (stop_on_tx_timeout) {
> > printk(KERN_WARNING PFX
> > "%s: prevent chip reset during tx timeout\n",
> > bp->dev->name);
> > smp_rmb();
> >
> > printk("last status idx %d \n", bnapi->last_status_idx);
> > printk("hw_tx_cons %d, txr->hw_tx_conds %d txr->tx_prod %d txr->tx_cons %d\n",
> > bnx2_get_hw_tx_cons(bnapi), txr->hw_tx_cons, txr->tx_prod, txr->tx_cons);
> > printk("hw_rx_cons %d, txr->hw_rx_conds %d\n", bnx2_get_hw_rx_cons(bnapi), rxr->rx_cons);
> > printk("sblk->status_attn_bits %d\n",bnapi->status_blk.msi->status_attn_bits);
> > printk("sblk->status_attn_bits_ack %d\n",bnapi->status_blk.msi->status_attn_bits_ack);
> > printk("bnx2_tx_avail %d \n",(bnx2_tx_avail(bp, txr)));
> >
> > printk("sblk->status_tx_quick_consumer_index0 %d\n",bnapi->status_blk.msi->status_tx_quick_consumer_index0);
> > printk("sblk->status_tx_quick_consumer_index1 %d\n",bnapi->status_blk.msi->status_tx_quick_consumer_index1);
> > printk("sblk->status_tx_quick_consumer_index2 %d\n",bnapi->status_blk.msi->status_tx_quick_consumer_index2);
> > printk("sblk->status_tx_quick_consumer_index3 %d\n",bnapi->status_blk.msi->status_tx_quick_consumer_index3);
> > printk("sblk->status_rx_quick_consumer_index0 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index0);
> > printk("sblk->status_rx_quick_consumer_index1 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index1);
> > printk("sblk->status_rx_quick_consumer_index2 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index2);
> > printk("sblk->status_rx_quick_consumer_index3 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index3);
> > printk("sblk->status_rx_quick_consumer_index4 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index4);
> > printk("sblk->status_rx_quick_consumer_index5 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index5);
> > printk("sblk->status_rx_quick_consumer_index6 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index6);
> > printk("sblk->status_rx_quick_consumer_index7 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index7);
> > printk("sblk->status_rx_quick_consumer_index8 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index8);
> > printk("sblk->status_rx_quick_consumer_index9 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index9);
> > printk("sblk->status_rx_quick_consumer_index10 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index10);
> > printk("sblk->status_rx_quick_consumer_index11 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index11);
> > printk("sblk->status_rx_quick_consumer_index12 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index12);
> > printk("sblk->status_rx_quick_consumer_index13 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index13);
> > printk("sblk->status_rx_quick_consumer_index14 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index14);
> > printk("sblk->status_rx_quick_consumer_index15 %d\n",bnapi->status_blk.msi->status_rx_quick_consumer_index15);
> > printk("sblk->status_completion_producer_index %d\n",bnapi->status_blk.msi->status_completion_producer_index);
> > printk("sblk->status_cmd_consumer_index %d\n",bnapi->status_blk.msi->status_cmd_consumer_index);
> > printk("sblk->status_idx %d\n",bnapi->status_blk.msi->status_idx);
> > printk("sblk->status_unused %d\n",bnapi->status_blk.msi->status_unused);
> > printk("sblk->status_blk_num %d\n",bnapi->status_blk.msi->status_blk_num);
> >
> > is_timedout = 1;
> > for (i = 0; i < bp->irq_nvecs; i++) {
> > bnapi = &bp->bnx2_napi[i];
> > bnx2_tx_int(bp, bnapi, 0);
> > }
> > return;
> > }
> > -----------------
> >
> > last status idx 2426
> > hw_tx_cons 32474, txr->hw_tx_conds 32474 txr->tx_prod 32641 txr->tx_cons 32474
> > hw_rx_cons 19665, txr->hw_rx_conds 19665
> > sblk->status_attn_bits 1
> > sblk->status_attn_bits_ack 1
> > bnx2_tx_avail 88
> > sblk->status_tx_quick_consumer_index0 32474
> > sblk->status_tx_quick_consumer_index1 0
> > sblk->status_tx_quick_consumer_index2 0
> > sblk->status_tx_quick_consumer_index3 0
> > sblk->status_rx_quick_consumer_index0 19665
> > sblk->status_rx_quick_consumer_index1 0
> > sblk->status_rx_quick_consumer_index2 0
> > sblk->status_rx_quick_consumer_index3 0
> > sblk->status_rx_quick_consumer_index4 0
> > sblk->status_rx_quick_consumer_index5 0
> > sblk->status_rx_quick_consumer_index6 0
> > sblk->status_rx_quick_consumer_index7 0
> > sblk->status_rx_quick_consumer_index8 0
> > sblk->status_rx_quick_consumer_index9 0
> > sblk->status_rx_quick_consumer_index10 0
> > sblk->status_rx_quick_consumer_index11 0
> > sblk->status_rx_quick_consumer_index12 0
> > sblk->status_rx_quick_consumer_index13 0
> > sblk->status_rx_quick_consumer_index14 0
> > sblk->status_rx_quick_consumer_index15 0
> > sblk->status_completion_producer_index 0
> > sblk->status_cmd_consumer_index 0
> > sblk->status_idx 2426
> > sblk->status_unused 0
> > sblk->status_blk_num 0
> > hw_cons 32474 sw_cons 32474 ffff8801d27f85c0 bnapi
> > return hw_cons 32474 sw_cons 32474 ffff8801d27f85c0 bnapi
> > hw_cons 3628 sw_cons 3625 ffff8801d27f8bc0 bnapi
> > return hw_cons 3628 sw_cons 3625 ffff8801d27f8bc0 bnapi
> > hw_cons 62094 sw_cons 62090 ffff8801d27f91c0 bnapi
> > return hw_cons 62094 sw_cons 62090 ffff8801d27f91c0 bnapi
> > hw_cons 3184 sw_cons 3173 ffff8801d27f97c0 bnapi
> > return hw_cons 3184 sw_cons 3173 ffff8801d27f97c0 bnapi
> > hw_cons 0 sw_cons 0 ffff8801d27f9dc0 bnapi
> > return hw_cons 0 sw_cons 0 ffff8801d27f9dc0 bnapi
> >
> > >--------------------------------------------------------------------------------
> > >From: tinnycloud@xxxxxxxxxxx
> > >To: xen-devel@xxxxxxxxxxxxxxxxxxx
> > >CC: mchan@xxxxxxxxxxxx
> > >Subject: bnx2 FTQ issues on 2.6.32 + xen 4.0.1;
> > >Date: Mon, 27 Jun 2011 13:38:07 +0800
> > >
> > >
> > >Hi Michael:
> > >
> > > Sorry to brother. But I've been suffered this issue quite a long time.
> > > My test environment is 2.6.32.36 + xen 4.0.1 + bnx2, 2.3.
> > >
> > > Also cpu idle is disabled in grub.
> > >
> > > Grub info:
> > > title Red Hat Enterprise Linux Server (2.6.32.36xen)
> > > kernel /xen-4.0.1.gz iommu=off x2apic=off console=com1,vga com1=115200,8n1 noreboot cpuidle=0 cpufreq=none no-xsave max_cstate=1
> > > module /vmlinuz-2.6.32.36xen ro root=LABEL=/ hda=noprobe console=hvc0 console=ttyS0,115200n8
> > > module /initrd-2.6.32.36xen.img
> > >
> > > Someone has pointed out that this might be interrupt lost, but I don't understand the log info, if the log
> > >info is documented somewhere, could you let me know?
> > >
> > > Many thanks.
> > >
> > >root@xmao # ethtool -i eth0
> > >driver: bridge
> > >version: 2.3
> > >firmware-version: N/A
> > >bus-info: N/A
> > >
> > >
> > >/var/log/message:
> > >
> > >196299 Jun 27 07:36:56 xmao kernel: ------------[ cut here ]------------
> > >196300 Jun 27 07:36:56 xmao kernel: WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x105/0x16a()
> > >196301 Jun 27 07:36:56 xmao kernel: Hardware name: Tecal RH2285
> > >196302 Jun 27 07:36:56 xmao kernel: NETDEV WATCHDOG: peth0 (bnx2): transmit queue 0 timed out
> > >196303 Jun 27 07:36:56 xmao kernel: Modules linked in: iptable_filter nfs fscache nfs_acl auth_rpcgss bridge stp llc autofs4 ipmi_devintf ipmi_si ipm i_msghandler lockd sunrpc ipv6 xenfs dm_multipath fuse nf_conntrack ip_tables xen_netback xen_blkback blktap blkback_pagemap loop nbd video output sbs sbshc parport_pc lp parport snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device serio_raw bnx2 snd_pcm_oss snd_mixer_oss snd_pcm snd_ timer snd i2c_i801 iTCO_wdt soundcore iTCO_vendor_support pata_acpi snd_page_alloc i2c_core ata_generic pcspkr ata_piix shpchp mptsas mptscsih mptbase [last unloaded: freq_table]
> > >196304 Jun 27 07:36:56 xmao kernel: Pid: 0, comm: swapper Not tainted 2.6.32.36xen #1
> > >196305 Jun 27 07:36:56 xmao kernel: Call Trace:
> > >196306 Jun 27 07:36:56 xmao kernel: <IRQ> [<ffffffff813ba154>] ? dev_watchdog+0x105/0x16a
> > >196307 Jun 27 07:36:56 xmao kernel: [<ffffffff81056666>] warn_slowpath_common+0x7c/0x94
> > >196308 Jun 27 07:36:56 xmao kernel: [<ffffffff81056738>] warn_slowpath_fmt+0xa4/0xa6
> > >196309 Jun 27 07:36:56 xmao kernel: [<ffffffff81080bfa>] ? clockevents_program_event+0x78/0x81
> > >196310 Jun 27 07:36:56 xmao kernel: [<ffffffff81081fce>] ? tick_program_event+0x2a/0x2c
> > >196311 Jun 27 07:36:56 xmao kernel: [<ffffffff813b951d>] ? __netif_tx_lock+0x1b/0x24
> > >196312 Jun 27 07:36:56 xmao kernel: [<ffffffff813b95a8>] ? netif_tx_lock+0x46/0x6e
> > >196313 Jun 27 07:36:56 xmao kernel: [<ffffffff813a3ed1>] ? netdev_drivername+0x48/0x4f
> > >196314 Jun 27 07:36:56 xmao kernel: [<ffffffff813ba154>] dev_watchdog+0x105/0x16a
> > >196315 Jun 27 07:36:56 xmao kernel: [<ffffffff81063d98>] run_timer_softirq+0x156/0x1f8
> > >196316 Jun 27 07:36:56 xmao kernel: [<ffffffff813ba04f>] ? dev_watchdog+0x0/0x16a
> > >196317 Jun 27 07:36:56 xmao kernel: [<ffffffff8105d6f0>] __do_softirq+0xd7/0x19e
> > >196318 Jun 27 07:36:56 xmao kernel: [<ffffffff81013eac>] call_softirq+0x1c/0x30
> > >196319 Jun 27 07:36:56 xmao kernel: [<ffffffff8101564b>] do_softirq+0x46/0x87
> > >196320 Jun 27 07:36:56 xmao kernel: [<ffffffff8105d575>] irq_exit+0x3b/0x7a
> > >196321 Jun 27 07:36:56 xmao kernel: [<ffffffff8128dcfe>] xen_evtchn_do_upcall+0x38/0x46
> > >196322 Jun 27 07:36:56 xmao kernel: [<ffffffff81013efe>] xen_do_hypervisor_callback+0x1e/0x30
> > >196323 Jun 27 07:36:56 xmao kernel: <EOI> [<ffffffff8103f642>] ? pick_next_task_idle+0x18/0x22
> > >196324 Jun 27 07:36:56 xmao kernel: [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
> > >196325 Jun 27 07:36:56 xmao kernel: [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
> > >196326 Jun 27 07:36:56 xmao kernel: [<ffffffff8100f1bb>] ? xen_safe_halt+0x10/0x1a
> > >196327 Jun 27 07:36:56 xmao kernel: [<ffffffff81019e14>] ? default_idle+0x39/0x56
> > >196328 Jun 27 07:36:56 xmao kernel: [<ffffffff81011cd0>] ? cpu_idle+0x5d/0x8c
> > >196329 Jun 27 07:36:56 xmao kernel: [<ffffffff8143375d>] ? cpu_bringup_and_idle+0x13/0x15
> > >196330 Jun 27 07:36:56 xmao kernel: ---[ end trace 8ea3df16a1603e41 ]---
> > >196331 Jun 27 07:36:56 xmao kernel: bnx2: <--- start FTQ dump on peth0 --->
> > >196332 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_RV2P_PFTQ_CTL 10000
> > >196333 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_RV2P_TFTQ_CTL 20000
> > >196334 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_RV2P_MFTQ_CTL 4000
> > >196335 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_TBDR_FTQ_CTL 1004002
> > >196336 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_TDMA_FTQ_CTL 4010002
> > >196337 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_TXP_FTQ_CTL 4010002
> > >196338 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_TPAT_FTQ_CTL 10002
> > >196339 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_RXP_CFTQ_CTL 8000
> > >196340 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_RXP_FTQ_CTL 100000
> > >196341 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_COM_COMXQ_FTQ_CTL 10000
> > >196342 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_COM_COMTQ_FTQ_CTL 20000
> > >196343 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_COM_COMQ_FTQ_CTL 10000
> > >196344 Jun 27 07:36:56 xmao kernel: bnx2: peth0: BNX2_CP_CPQ_FTQ_CTL 4000
> > >196345 Jun 27 07:36:56 xmao kernel: bnx2: peth0: TXP mode b84c state 80005000 evt_mask 500 pc 8000758 pc 8000758 instr 8fa90030
> > >196346 Jun 27 07:36:56 xmao kernel: bnx2: peth0: TPAT mode b84c state 80001000 evt_mask 500 pc 8000a5c pc 8000a4c instr 38420001
> > >196347 Jun 27 07:36:56 xmao kernel: bnx2: peth0: RXP mode b84c state 80001000 evt_mask 500 pc 8004c1c pc 8004c20 instr 32070001
> > >196348 Jun 27 07:36:56 xmao kernel: bnx2: peth0: COM mode b8cc state 80008000 evt_mask 500 pc 8000a94 pc 8000b28 instr 3c028000
> > >196349 Jun 27 07:36:56 xmao kernel: bnx2: peth0: CP mode b8cc state 80004000 evt_mask 500 pc 8000c6c pc 8000928 instr 8ce800e8
> > >196350 Jun 27 07:36:56 xmao kernel: bnx2: <--- end FTQ dump on peth0 --->
> > >196351 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: intr_sem[0]
> > >196351 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: intr_sem[0]
> > >196352 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: intr_sem[0] PCI_CMD[20100406]
> > >196353 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: PCI_PM[19002008] PCI_MISC_CFG[92000088]
> > >196354 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: EMAC_TX_STATUS[00000008] EMAC_RX_STATUS[00000000]
> > >196355 Jun 27 07:36:56 xmao kernel: bnx2: peth0 RPM_MGMT_PKT_CTRL[40000088]
> > >196356 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: MCP_STATE_P0[0007e10e] MCP_STATE_P1[0003e00e]
> > >196357 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: HC_STATS_INTERRUPT_STATUS[01ff0000]
> > >196358 Jun 27 07:36:56 xmao kernel: bnx2: peth0 DEBUG: PBA[00000000]
> > >196359 Jun 27 07:36:56 xmao kernel: bnx2: peth0 NIC Copper Link is Down
> > >196360 Jun 27 07:36:56 xmao kernel: eth0: port 1(peth0) entering disabled state
> > >196361 Jun 27 07:36:59 xmao kernel: bnx2: peth0 NIC Copper Link is Up, 1000 Mbps full duplex
> > >196362 Jun 27 07:36:59 xmao kernel: eth0: port 1(peth0) entering forwarding state
> >
> >
> >
> >
>
> > _______________________________________________
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> > http://lists.xensource.com/xen-devel
>
