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SubjectRe: [PATCH] tg3: netif_carrier_off runs too early; could still be queued when init fails
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Michael Chan wrote:
> On Tue, 2006-02-21 at 17:41 -0500, Jeff Mahoney wrote:
>
>> dmesg after modprobe tg3:
>> tg3.c:v3.49 (Feb 2, 2006)
>> ACPI: PCI Interrupt 0000:0a:02.0[A] -> GSI 24 (level, low) -> IRQ 201
>> Uhhuh. NMI received for unknown reason 21 on CPU 0.
>> Dazed and confused, but trying to continue
>> Do you have a strange power saving mode enabled?
>> tg3_test_dma() Write the buffer failed -19
>> tg3: DMA engine test failed, aborting.
>>
>
> You're getting an NMI during tg3_init_one() which means that the NIC is
> probably bad. I did a quick test on the same version of the 5701 NIC
> with the same tg3 driver and it worked fine.
>
> Please find out if the NIC is known to be bad. Thanks.

Up until recently, this NIC was reported to work. I booted our
2.6.5-based SLES9 kernel on it. This is the kernel the machine has been
running for a while with the NIC working, and when I booted it, I got
the same DMA failure messages as with 2.6.16-rc4.

I suspect that the hardware has just recently failed, and I figured it
was a hardware problem when I saw the NMI/DMA messages, but since I
don't have physical access to the hardware, immediate removal wasn't an
option.

- -Jeff

- --
Jeff Mahoney
SUSE Labs
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