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SubjectRe: kernel BUG at tg3.c:1557
Thanks for your quick reply.

On Wed, 7 Aug 2002, David S. Miller wrote:

> From: Alan Cox <alan@lxorguk.ukuu.org.uk>
> Date: 07 Aug 2002 14:14:37 +0100
>
> I've never been able to get a broadcom chipset ethernet card stable on a
> dual athlon with AMD 76x chipset. I have no idea what the problem is
> although it certainly appears to be PCI versus main memory ordering
> funnies.
>
> One thing you can try is the following in tg3.c:
>
> 1) Force TG3_FLAG_PCIX_TARGET_HWBUG to be set in tp->tg3_flags
>
> 2) Change "tw32_mailbox(reg, val)" define to just be identical
> to "tw32(reg, val)"

The second change is straightforward, and I implemented the first by
setting

*** around line 5569
pci_read_config_dword(tp->pdev, TG3PCI_PCISTATE,
&pci_state_reg);

+ tp->tg3_flags |= TG3_FLAG_PCIX_TARGET_HWBUG; // rk
if ((pci_state_reg & PCISTATE_CONV_PCI_MODE) == 0) {
tp->tg3_flags |= TG3_FLAG_PCIX_MODE;
***

With these changes I'm unable to bring the interface up again, getting
timeouts from tg3_stop_block:

Aug 7 16:06:47 pccoeb09 kernel: tg3.c:v0.99 (Jun 11, 2002)
Aug 7 16:06:47 pccoeb09 kernel: AMD756: dev 14e4:1644, router pirq : 86
get irq : 0
Aug 7 16:06:47 pccoeb09 kernel: AMD756: dev 14e4:1644, router pirq : 86
SET irq : 11
Aug 7 16:06:47 pccoeb09 kernel: PCI: Assigned IRQ 11 for device 00:08.0
Aug 7 16:06:47 pccoeb09 kernel: IRQ routing conflict for 00:09.0, have
irq 5, want i
rq 11
Aug 7 16:06:47 pccoeb09 kernel: eth0: Tigon3 [partno(BCM95700A6) rev 7102
PHY(5401)]
(PCI:33MHz:64-bit) 10/100/1000BaseT Ethernet 00:04:76:30:7e:ee
Aug 7 16:06:49 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=2c00
enable_bit=2
Aug 7 16:06:48 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=2000
enable_bit=2
Aug 7 16:06:49 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=3400
enable_bit=2
Aug 7 16:06:50 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=2400
enable_bit=2
Aug 7 16:06:48 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=2800
enable_bit=2
Aug 7 16:06:49 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=3000
enable_bit=2
Aug 7 16:06:50 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=1400
enable_bit=2
Aug 7 16:06:48 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=1800
enable_bit=2
Aug 7 16:06:49 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=c00
enable_bit=2
Aug 7 16:06:47 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=4800
enable_bit=2
Aug 7 16:06:48 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=1000
enable_bit=2
Aug 7 16:06:49 pccoeb09 kernel: tg3: tg3_stop_block timed out, ofs=1c00
enable_bit=2
Aug 7 16:06:47 pccoeb09 ifup: SIOCSIFFLAGS: Device or resource busy
Aug 7 16:06:47 pccoeb09 ifup: Failed to bring up eth0.

Ciao,
Roland

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