Date: Mon, 13 Oct 2003 12:07:55 -0400 From: Jesse Guardiani <jesse@wingnet.net> To: freebsd-questions@freebsd.org Subject: sio3 (COM4) problems on FreeBSD 4.8-RELEASE Message-ID: <bmeikt$h7g$1@sea.gmane.org>
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Howdy list, I'm having trouble with my sio3 (/dev/cuaa3) port on one of my servers (with an SMP kernel). When I try to `tip com4` to a cisco switch using this port, I get only partial data, and this appears in the logs: messages:Oct 10 17:18:37 billmax /kernel: sio3 at port 0x2e8-0x2ef irq 9 on isa0 messages:Oct 10 17:18:38 billmax /kernel: sio3: type 16550A messages:Oct 10 17:20:16 billmax /kernel: sio3: 1 more silo overflow (total 1) messages:Oct 10 17:20:18 billmax /kernel: sio3: 1 more silo overflow (total 2) messages:Oct 10 17:20:21 billmax /kernel: sio3: 1 more silo overflow (total 3) messages:Oct 10 17:20:22 billmax /kernel: sio3: 1 more silo overflow (total 4) messages:Oct 10 17:20:23 billmax /kernel: sio3: 1 more silo overflow (total 5) messages:Oct 10 17:20:27 billmax /kernel: sio3: 1 more silo overflow (total 6) messages:Oct 10 17:20:36 billmax /kernel: sio3: 1 more silo overflow (total 7) messages:Oct 10 17:20:38 billmax /kernel: sio3: 1 more silo overflow (total 8) messages:Oct 10 17:20:45 billmax /kernel: sio3: 1 more silo overflow (total 9) messages:Oct 10 17:20:48 billmax /kernel: sio3: 1 more silo overflow (total 10) messages:Oct 10 17:21:04 billmax /kernel: sio3: 1 more silo overflow (total 11) messages:Oct 10 17:22:15 billmax /kernel: sio3: 1 more silo overflow (total 12) messages:Oct 10 17:40:07 billmax /kernel: sio3: 1 more silo overflow (total 13) messages:Oct 10 17:46:29 billmax /kernel: sio3: 1 more silo overflow (total 14) If I move the console cable from com4 to com1 on the server and keep the console cable in the same switch, then `tip com1`, it works fine. It's just the sio3 port that I'm having trouble with. Note that this machine only has sio1 and sio3. Here's my sio kernel config: # Serial (COM) ports device sio0 at isa? port IO_COM1 flags 0x10 irq 4 device sio1 at isa? port IO_COM2 irq 3 device sio2 at isa? disable port IO_COM3 irq 5 device sio3 at isa? port IO_COM4 flags 0x10 irq 9 Also, I've tried it with AND without the 0x10 flag (which I know just allows the com device to be used as a serial console). AND I've tried it with the "do not use FIFO" flag (0x00002) on COM4, like this: # Serial (COM) ports device sio0 at isa? port IO_COM1 flags 0x10 irq 4 device sio1 at isa? disable port IO_COM2 irq 3 device sio2 at isa? disable port IO_COM3 irq 5 device sio3 at isa? port IO_COM4 flags 0x00002 irq 9 I get the same error in the log either way. Port speed is set to 9600 in all tests. I get the same problem under conserver, so it's not directly related to the `tip` command, but the device. Is there some magic voodoo flag that I need to pass to this port to get it working? Thanks! -- Jesse Guardiani, Systems Administrator WingNET Internet Services, P.O. Box 2605 // Cleveland, TN 37320-2605 423-559-LINK (v) 423-559-5145 (f) http://www.wingnet.net
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