On 2009-Aug-14 09:40:39 +0200, Hans Petter Selasky <[email protected]> wrote: >On Thursday 13 August 2009 23:32:52 Edwin Groothuis wrote: >> On 7.x this never happened, but on 8.x now and then (once or twice >> every traintrip) the E169 modem gets lost: You see the kernel >> messages that the device disappeared, /dev/cua0.0 disappears and >> thus PPP stops etc.
I'm seeing something similar, though not as frequently as Edwin and the symptoms vary. For my latest crash, the devices didn't disappear (in particular, e169-stats - which uses ttyU0.2 - kept running and there were no kernel messages). It seems to get worse the longer my system is running (or maybe the more often I connect/disconnect the E169). At least sometimes, the dropout _is_ triggered by a signal glitch (moving through cuttings and tunnels without in-tunnel coverage) but I've also seen it sitting at my office desk. The reconnect issues I have suggest that there's some sort of resource leak in the kernel as well. >How much traffic is being passed when the modem stops? In my case, virtually none - maybe 1 packet every few seconds (mostly due to chatting to Edwin and others on IRC). >sysctl hw.usb.ehci.no_hs=1 > >Before plugging the device. This will limit the speed to FULL speed only. It's a full-speed device only, so will this have any effect? ugen0.2: <HUAWEI Mobile Huawei Technologies> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON In my case, I'm also seeing situations where the modem will not reconnect (I get "Too many IPCP REQs sent - abandoning negotiation" from ppp(8)) until it is physically disconnected and reconnected. Associated with this, I notice an increase in active mbufs that I can't explain (last time, netstat -m was reporting ~840 active mbufs whereas I was expecting ~330). A full set of probe messages for me looks like: Aug 19 05:35:54 aspire kernel: u3g_huawei_init:253: Aug 19 05:35:54 aspire kernel: usb2_alloc_device:1762: Found Huawei auto-install disk! Aug 19 05:35:54 aspire kernel: ugen0.2: <Huawei Technologies> at usbus0 Aug 19 05:35:54 aspire kernel: ugen0.2: <Huawei Technologies> at usbus0 (disconnected) Aug 19 05:35:54 aspire kernel: uhub_reattach_port:416: could not allocate new device! Aug 19 05:35:57 aspire root: Unknown USB device: vendor 0x12d1 product 0x1001 bus uhub0 Aug 19 05:35:57 aspire kernel: ugen0.2: <Huawei Technologies> at usbus0 Aug 19 05:35:57 aspire kernel: u3g0: <Data Interface> on usbus0 Aug 19 05:35:57 aspire kernel: u3g0: Found 3 ports. Aug 19 05:35:57 aspire kernel: umass0: <Huawei Technologies HUAWEI Mobile, class 0/0, rev 1.10/0.00, addr 2> on usbus0 Aug 19 05:35:57 aspire kernel: umass0: SCSI over Bulk-Only; quirks = 0x0000 Aug 19 05:35:59 aspire kernel: umass0:0:0:-1: Attached to scbus0 Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): CAM Status: SCSI Status Error Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): SCSI Status: Check Condition Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): NOT READY asc:3a,0 Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): Medium not present Aug 19 05:35:59 aspire kernel: (probe0:umass-sim0:0:0:0): Unretryable error Aug 19 05:35:59 aspire kernel: cd0 at umass-sim0 bus 0 target 0 lun 0 Aug 19 05:35:59 aspire kernel: cd0: <HUAWEI Mass Storage 2.31> Removable CD-ROM SCSI-2 device Aug 19 05:35:59 aspire kernel: cd0: 1.000MB/s transfers Aug 19 05:35:59 aspire kernel: cd0: Attempt to query device size failed: NOT READY, Medium not present Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): TEST UNIT READY. CDB: 0 20 0 0 0 0 Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): CAM Status: SCSI Status Error Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): SCSI Status: Check Condition Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): NOT READY asc:3a,0 Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): Medium not present Aug 19 05:36:00 aspire kernel: (probe0:umass-sim0:0:0:1): Unretryable error Aug 19 05:36:00 aspire kernel: da0 at umass-sim0 bus 0 target 0 lun 1 Aug 19 05:36:00 aspire kernel: da0: <HUAWEI SD Storage 2.31> Removable Direct Access SCSI-2 device Aug 19 05:36:00 aspire kernel: da0: 1.000MB/s transfers Aug 19 05:36:00 aspire kernel: da0: Attempt to query device size failed: NOT READY, Medium not present Aug 19 05:36:00 aspire kernel: can't re-use a leaf (minimum_cmd_size)! The last message looks a bit strange, though it is currently working. -- Peter Jeremy
pgpmKPTJ2cQEo.pgp
Description: PGP signature
