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Message-ID: <70660feba172c7933cd5521527df523c@wizardsworks.org> Date: Tue, 10 Jun 2025 11:33:35 -0700 From: Greg Chandler <chandleg@...ardsworks.org> To: Florian Fainelli <f.fainelli@...il.com> Cc: stable@...r.kernel.org, netdev@...r.kernel.org Subject: Re: Tulip 21142 panic on physical link disconnect Thanks! I appreciate you getting back to me. I've got about 30 huge bugs I am shaking down, and this one just cropped up, so I haven't been able to put a lot of time into it yet. I rolled a full debug kernel last night to troubleshoot what appears to be a spinlock/mutex issue with something else, but I'm sure it'll help with this too. If I find anything out I will also reply with the details.... On 2025/06/10 09:27, Florian Fainelli wrote: > Howdy! > > On 6/9/25 15:43, Greg Chandler wrote: >> >> This is a from-scratch build (non-vendor/non-distribution) >> Host/Target = alpha ev6 >> Kernel source = 6.12.12 >> >> My last working kernel on this was a 2.6.x, it's been a while since >> I've had time to bring this system up to date, so I don't know when >> this may have started. >> I had a 3.0.102 in there, but I didn't test the networking while using >> it. >> >> Please let me know what I can do to help out with figuring this one >> out. > > I don't have an Alpha machine to try this on, but I do have a > functional Cobalt Qube2 (MIPS 32/64) with these adapters connected > directly over PCI: > > 00:07.0 Ethernet controller: Digital Equipment Corporation DECchip > 21142/43 (rev 41) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > ParErr+ Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium > >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 64 (5000ns min, 10000ns max), Cache Line Size: 32 > bytes > Interrupt: pin A routed to IRQ 19 > Region 0: I/O ports at 1000 [size=128] > Region 1: Memory at 12082000 (32-bit, non-prefetchable) > [size=1K] > Expansion ROM at 12000000 [disabled] [size=256K] > Kernel driver in use: tulip > > > 00:0c.0 Ethernet controller: Digital Equipment Corporation DECchip > 21142/43 (rev 41) > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- > ParErr- Stepping- SERR- FastB2B- DisINTx- > Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium > >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 64 (5000ns min, 10000ns max), Cache Line Size: 32 > bytes > Interrupt: pin A routed to IRQ 20 > Region 0: I/O ports at 1080 [size=128] > Region 1: Memory at 12082400 (32-bit, non-prefetchable) > [size=1K] > Expansion ROM at 12040000 [disabled] [size=256K] > Kernel driver in use: tulip > > the machine is not currently on a switch that I can control, but I can > certainly try to plug in the cable and see what happens, give me a > couple of days to get back to you, and if you don't hear back, please > holler. Here are the bits of kernel configuration: > > CONFIG_NET_TULIP=y > CONFIG_TULIP=y > # CONFIG_TULIP_MWI is not set > # CONFIG_TULIP_MMIO is not set > # CONFIG_TULIP_NAPI is not set
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