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Message-ID: <02e3f9b8-9e60-4574-88e2-906ccd727829@gmail.com> Date: Tue, 10 Jun 2025 09:27:35 -0700 From: Florian Fainelli <f.fainelli@...il.com> To: Greg Chandler <chandleg@...ardsworks.org>, stable@...r.kernel.org Cc: netdev@...r.kernel.org Subject: Re: Tulip 21142 panic on physical link disconnect 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 -- Florian
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