Serial ports disappeared on Supermicro board
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And if they still work in pfSense 2.2/2.3, I would run the following command and compare the results against 2.4.x:
kldstat -
I have the same motherboard, and these ports seem to be recognized fine in 2.4.2-RELEASE-p1. Admittedly, I'm not using them for anything.
dmesg|grep -i uart uart0: <16550 or compatible> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0 uart1: <16550 or compatible> port 0x2f8-0x2ff irq 3 on acpi0sysctl -a | grep -i uart device uart_ns8250 device uart kern.console: ttyv0,/uart,ucom,ttyv0, debug.uart_force_poll: 0 debug.uart_poll_freq: 50 dev.uart.1.pps_mode: 2 dev.uart.1.%parent: acpi0 dev.uart.1.%pnpinfo: _HID=PNP0501 _UID=1 dev.uart.1.%location: handle=\_SB_.PCI0.SBRG.UAR2 dev.uart.1.%driver: uart dev.uart.1.%desc: 16550 or compatible dev.uart.0.pps_mode: 2 dev.uart.0.%parent: acpi0 dev.uart.0.%pnpinfo: _HID=PNP0501 _UID=0 dev.uart.0.%location: handle=\_SB_.PCI0.SBRG.UAR1 dev.uart.0.%driver: uart dev.uart.0.%desc: 16550 or compatible dev.uart.%parent:Looks like the driver is built into the kernel, and I don't have any related modules loaded:
kldstat Id Refs Address Size Name 1 23 0xffffffff80200000 2c3ea98 kernel 2 1 0xffffffff82e40000 316988 zfs.ko 3 2 0xffffffff83157000 ca18 opensolaris.ko 4 1 0xffffffff83164000 11618 ipmi.ko 5 2 0xffffffff83176000 31d8 smbus.ko 6 1 0xffffffff83221000 7f92 aesni.ko 7 1 0xffffffff83229000 2c1b coretemp.kovmstat -ai | grep -i uart irq3: uart1 0 0 irq4: uart0 0 0I'd look at my BIOS settings, but I can't reset this machine right now. Based on dmidecode, I'm running BIOS version 2.0 from 07/24/2017.
You don't have any add-in cards that could somehow be interfering do you?
Some kind of ACPI problem?
Now I'd really be interested in the other member's suggestions to try booting FreeBSD or Linux.
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@johnkeates:
To figure out if this is a 2.4-only thing, try booting 2.3 or 2.2 media or maybe even some random BSD or Linux disk, see if they can detect the ports. They probably will, but some positive confirmation is always good.
In 2.2 and 2.3 I had them working perfectly.
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I'd look at my BIOS settings, but I can't reset this machine right now. Based on dmidecode, I'm running BIOS version 2.0 from 07/24/2017.
You don't have any add-in cards that could somehow be interfering do you?
Some kind of ACPI problem?
Now I'd really be interested in the other member's suggestions to try booting FreeBSD or Linux.
I'd be thankful if you'd check for any special BIOS settings. I also run bios version 2.0 same as you.
I have an extra PCIx Intel LAN card, but that's not new, it's been in there since ages.I'll try to run a LiveCD Linux to see if the ports can be detected there…. :-\
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I might be able to take down the firewall sometime this weekend to take a look.
I'll check back for your results with pfSense 2.3 and/or Linux to make sure they are still working there.
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:o
Linux doesn't see the ports either. In BIOS they are enabled, though. What the heck…? -
Have you actually completely removed power from the device? Some registers remain set even after a shutdown. Could be disabling those ports.
Steve
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Yes I already thought about that, thus I completely pulled the plug too for about a minute… still not seeing them.
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No it doesn't. And apart from the missing serial ports, it works well.
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Hmm, not much that can make them disappear from the OS side. I could believe they could get fried at the hardware level externally but I still expect them to be visible to the OS.
If they are disabled that would happen but I can see no reason why they would be. ACPI tables damaged maybe? Perhaps force reflash the BIOS with the same image.
Are they on the SuperIO chip on that board? Check they are enabled after boot.
Steve
