netdev - NIU driver: Sun x8 Express Quad Gigabit Ethernet Adapter

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Message-Id: <1225809909.10206.90.camel@localhost.localdomain>
Date:	Tue, 04 Nov 2008 15:45:09 +0100
From:	Jesper Dangaard Brouer <jdb@...x.dk>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: NIU driver: Sun x8 Express Quad Gigabit Ethernet Adapter

Hi DaveM

I just bought the Sun x8 Express Quad Gigabit Ethernet Adapter you
recommended to me.  It seem to work with the NIU driver (I can ping
through the box), but I get a kernel warning when spamming it with
pktgen...

Where do I go from here?
And what do you want me to try?

Tested on kernels:
  Kernel: 2.6.28-rc2
  Kernel: 2.6.27

CPU:    Intel(R) Xeon(R) CPU E5335  @ 2.00GHz
System: HP ProLiant DL380-G5

------------[ cut here ]------------
WARNING: at net/sched/sch_generic.c:226 dev_watchdog+0x21e/0x230()
NETDEV WATCHDOG: eth2 (niu): transmit timed out
Modules linked in: ehci_hcd ipmi_si ipmi_msghandler rng_core hpwdt
uhci_hcd serio_raw hpilo bnx2 zlib_inflate niu
Pid: 0, comm: swapper Not tainted 2.6.28-rc2-torvalds #2
Call Trace:
 [<c0126773>] warn_slowpath+0x63/0x80
 [<c01201ce>] ? __enqueue_entity+0x8e/0xb0
 [<c01202fd>] ? enqueue_task_fair+0x2d/0xe0
 [<c0108ca9>] ? read_tsc+0x9/0x30
 [<c0108ca9>] ? read_tsc+0x9/0x30
 [<c013f52b>] ? getnstimeofday+0x3b/0xe0
 [<c021f48e>] ? strlcpy+0x1e/0x60
 [<c0326a8e>] dev_watchdog+0x21e/0x230
 [<c0108ca9>] ? read_tsc+0x9/0x30
 [<c013f52b>] ? getnstimeofday+0x3b/0xe0
 [<c012f19b>] ? cascade+0x4b/0x60
 [<c012f2cf>] run_timer_softirq+0x11f/0x190
 [<c014399c>] ? tick_dev_program_event+0x3c/0xc0
 [<c0326870>] ? dev_watchdog+0x0/0x230
 [<c012b024>] __do_softirq+0x94/0x160
 [<c013cc7a>] ? hrtimer_interrupt+0x14a/0x170
 [<c012b12b>] do_softirq+0x3b/0x50
 [<c012b335>] irq_exit+0x75/0x90
 [<c01141ca>] smp_apic_timer_interrupt+0x5a/0x90
 [<c013ca8a>] ? hrtimer_start+0x1a/0x20
 [<c0103ee0>] apic_timer_interrupt+0x28/0x30
 [<c0109cd5>] ? mwait_idle+0x35/0x40
 [<c0101c1e>] cpu_idle+0x4e/0xa0
---[ end trace 28edc9a90244cfaf ]---
niu 0000:0b:00.0: niu: eth2: Transmit timed out, resetting
niu 0000:0b:00.0: niu: eth2: Transmit timed out, resetting
niu 0000:0b:00.0: niu: eth2: Transmit timed out, resetting
niu 0000:0b:00.0: niu: eth2: Transmit timed out, resetting
niu 0000:0b:00.0: niu: eth2: Transmit timed out, resetting


-- 
Med venlig hilsen / Best regards
  Jesper Brouer
  ComX Networks A/S
  Linux Network developer
  Cand. Scient Datalog / MSc.
  Author of http://adsl-optimizer.dk
  LinkedIn: http://www.linkedin.com/in/brouer
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