[Bug 1269186] [NEW] Ubuntu 13.04 install on AMD-Seamicro SM15K enumerates nics as p0p1 etc

2014-01-14 Thread vikrant soman 
Public bug reported:

On a AMD-Seamicro Sm15000 system with Xeon ccards with Sandybridge
chipset, following nic enumeration was observed after a fresh install of
Ubuntu 13.04 ( AMD64 )


root@ubuntu-srv-0:~# ifconfig -a |grep eth
eth3  Link encap:Ethernet  HWaddr 00:22:99:51:00:06
root@ubuntu-srv-0:~# ifconfig -a |grep p[0-9]
p1p1  Link encap:Ethernet  HWaddr 00:22:99:51:00:02
p2p1  Link encap:Ethernet  HWaddr 00:22:99:51:00:04
p2p2  Link encap:Ethernet  HWaddr 00:22:99:51:00:01
p3p1  Link encap:Ethernet  HWaddr 00:22:99:51:00:00
p4p1  Link encap:Ethernet  HWaddr 00:22:99:51:00:03
p5p1  Link encap:Ethernet  HWaddr 00:22:99:51:00:05
rename6   Link encap:Ethernet  HWaddr 00:22:99:51:00:07

On Ubuntu 12.04 and lower the nics were enumerated as eth0, eth1,eth2 in
that order.

What might be causing this odd nic enumeration on Ubuntu 13.04 ?

** Affects: ubuntu
 Importance: Undecided
 Status: New

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Title:
  Ubuntu 13.04 install on AMD-Seamicro SM15K enumerates nics as p0p1 etc

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[Bug 1183135] Re: On running network and I/O traffic on SM15000-XE, "BUG: soft lockup -- CPU#0 stuck for 22s!" seen on dmesg

2013-09-09 Thread vikrant soman 
Ran the network test for over 72 hours with the latest Ubuntu irqbalance
package v 1.0.3 (quantal)and no tx unit hang was seen. Line rate was
obtained on all interfaces.

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Title:
  On running network and I/O traffic on SM15000-XE, "BUG: soft lockup --
  CPU#0 stuck for 22s!" seen on dmesg

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[Bug 1183135] [NEW] On running network and I/O traffic on SM15000-XE, "BUG: soft lockup -- CPU#0 stuck for 22s!" seen on dmesg

2013-05-22 Thread vikrant soman 
Public bug reported:

Ubuntu 12.04 LTS was installed on 2 servers on a SM15000-XE system.
Bidirectional iperf traffic was started on 7 nics between the 2 servers.
After a few hours, following stack trace was observed on the dmesg.
Sluggish network performance was observed after that


[15640.958682] sched: RT throttling activated [16924.585541]
[ cut here ]

[16924.585549] WARNING: at 
/build/buildd/linux-3.2.0/net/sched/sch_generic.c:255 
dev_watchdog+0x25a/0x270() [16924.585551] Hardware name: Sabre2 [16924.585552] 
NETDEV WATCHDOG: eth6 (e1000): transmit queue 0 timed out [16924.585553] 
Modules linked in: 8021q garp stp nfsd nfs lockd fscache auth_rpcgss nfs_acl 
sunrpc msr mac_hid lp parport e1000 [16924.585564] Pid: 0, comm: swapper/7 Not 
tainted 3.2.0-23-generic #36-Ubuntu [16924.585566] Call Trace:
> [16924.585567][] warn_slowpath_common+0x7f/0xc0 
> [16924.585575]  [] warn_slowpath_fmt+0x46/0x50 
> [16924.585578]  [] dev_watchdog+0x25a/0x270 [16924.585581]  
> [] ? perf_rotate_context+0x110/0x220 [16924.585585]  
> [] ? __queue_work+0x320/0x320 [16924.585587]  
> [] ? qdisc_reset+0x50/0x50 [16924.585589]  
> [] ? qdisc_reset+0x50/0x50 [16924.585592]  
> [] call_timer_fn+0x46/0x160 [16924.585594]  
> [] ? qdisc_reset+0x50/0x50 [16924.585597]  
> [] run_timer_softirq+0x132/0x2a0 [16924.585600]  
> [] ? ktime_get+0x65/0xe0 [16924.585604]  
> [] __do_softirq+0xa8/0x210 [16924.585607]  
> [] ? read_tsc+0x9/0x20 [16924.585609]  [] 
> ? tick_program_event+0x24/0x30 [16924.585613]  [] 
> call_softirq+0x1c/0x30 [16924.585616]  [] 
> do_softirq+0x65/0xa0 [16924.585619]  [] irq_exit+0x8e/0xb0 
> [16924.585622]  [] smp_apic_timer_interrupt+0x6e/0x99
> [16924.585625]  [] apic_timer_interrupt+0x6e/0x80 
> [16924.585626][] ? intel_idle+0xed/0x150 
> [16924.585631]  [] ? intel_idle+0xcf/0x150 [16924.585634]  
> [] cpuidle_idle_call+0xc1/0x280 [16924.585637]  
> [] cpu_idle+0xca/0x120 [16924.585640]  [] 
> start_secondary+0xd9/0xdb [16924.585642] 

---[ end trace 3c74a3d373267b03 ]---

[16941.890574] BUG: soft lockup - CPU#0 stuck for 22s! [swapper/0:0]


[16941.963686] Modules linked in: 8021q garp stp nfsd nfs lockd fscache 
auth_rpcgss nfs_acl sunrpc msr mac_hid lp parport e1000
[16941.963697] CPU 0 
[16941.963698] Modules linked in: 8021q garp stp nfsd nfs lockd fscache 
auth_rpcgss nfs_acl sunrpc msr mac_hid lp parport e1000
[16941.963704] 
[16941.963706] Pid: 0, comm: swapper/0 Tainted: GW3.2.0-23-generic 
#36-Ubuntu SeaMicro Sabre2/Type2 - Board Product Name1
[16941.963710] RIP: 0010:[]  [] 
__alloc_skb+0xcf/0x240
[16941.963718] RSP: 0018:88043fc03c70  EFLAGS: 00010202
[16941.963719] RAX:  RBX: 88043fc03c60 RCX: 000a
[16941.963721] RDX: 88040f876680 RSI: 00cc RDI: 880420dab478
[16941.963722] RBP: 88043fc03cb0 R08: 0680 R09: 0800
[16941.963724] R10: 880420dab500 R11: 0001 R12: 88043fc03be8
[16941.963725] R13: 8166555e R14: 88043fc03cb0 R15: 88040f876000
[16941.963727] FS:  () GS:88043fc0() 
knlGS:
[16941.963729] CS:  0010 DS:  ES:  CR0: 8005003b
[16941.963730] CR2: 7f19afb0ad50 CR3: 000210999000 CR4: 000406f0
[16941.963732] DR0:  DR1:  DR2: 
[16941.963734] DR3:  DR6: 0ff0 DR7: 0400
[16941.963735] Process swapper/0 (pid: 0, threadinfo 81c0, task 
81c0d020)
[16941.963737] Stack:
[16941.987830]  88043fc03ca0 0632813265a4 880424796090 
88042120
[16941.987834]   00ff 88040f875840 
8804218a7a80
[16941.987837]  88043fc03cd0 81532424 00fe 
c90001877fd0
[16941.987840] Call Trace:
[16942.017153]   
[16942.042416]  [] __netdev_alloc_skb+0x24/0x50
[16942.042423]  [] e1000_alloc_rx_buffers+0x291/0x4f0 [e1000]
[16942.042427]  [] ? map_single+0x60/0x60
[16942.042430]  [] e1000_clean_rx_irq+0x3ba/0x4d0 [e1000]
[16942.042434]  [] e1000_clean+0x51/0xc0 [e1000]
[16942.042438]  [] net_rx_action+0x134/0x290
[16942.042442]  [] __do_softirq+0xa8/0x210
[16942.042446]  [] ? eoi_ioapic_irq.isra.23+0x5e/0x70
[16942.042450]  [] call_softirq+0x1c/0x30
[16942.042453]  [] do_softirq+0x65/0xa0
[16942.042456]  [] irq_exit+0x8e/0xb0
[16942.042458]  [] do_IRQ+0x63/0xe0
[16942.042462]  [] common_interrupt+0x6e/0x6e
[16942.042463]   
[16942.067708]  [] ? hrtimer_try_to_cancel+0x50/0xc0
[16942.067712]  [] ? tick_nohz_restart_sched_tick+0x106/0x130
[16942.067715]  [] ? tick_nohz_restart_sched_tick+0x102/0x130
[16942.067719]  [] cpu_idle+0x103/0x120
[16942.067723]  [] rest_init+0x72/0x74
[16942.067728]  [] start_kernel+0x3ba/0x3c7
[16942.067731]  [] x86_64_start_reservations+0x132/0x136
[16942.067734]  [] ? early_idt_handlers+0x140/0x140
[16942.067737]  [] x86_64_start_kernel+0xcd/0xdc
[16942.067739] Code: df be cc 00