Date: Fri, 11 Jul 2008 16:53:06 +0300 From: "Alexander Kozlov" <synthetic.youth@gmail.com> To: freebsd-usb@freebsd.org Subject: AnyDATA ADU-500A speed/stalled/panic Message-ID: <7ca5745b0807110653q240ea42cx9151df8305f4b218@mail.gmail.com>
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Hi. I have some problems with USB CDMA modem AnyDATA ADU-500A. I'm running FreeBSD 7.0 RELEASE rebuilt with GENERIC conf and patch to recognize this modem. I took patch from http://www.freebsd.org/cgi/query-pr.cgi?pr=118479 Device is recognized as ucom0: <AnyDATA Corporation AnyDATA CDMA Products, class 0/0, rev 1.10/0.00, addr 2> on uhub1 1. The first issue is 'ucom0: ubsa_request: STALLED' messages. I have these messaged when dailing with ppp ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED ucom0: ubsa_request: STALLED But I have device connected to internet. A lot of such messages I got when notebook is idle for some time. 2. Second is speed issue. I never get more than 29 KByte/sec. But at Windows XP SP3 and Ubuntu 8.04 I have up to 100 KByte/sec. As far as I know this is the limit for my location. I managed to have 100 KByte by patching ubsa.c: tuning ibuzsize and obufsize. I partially applied patch from http://lists.freebsd.org/pipermail/freebsd-usb/2008-January/004298.html Is this correct way to resolve speed issue? 3. Third and most painfull is system crash. It happens when device is used by several apps or when downloading at high speed. I got kernel: panic: uhci_abort_xfer: not in process context Panic happens and without speed issue patch. Crashes never happen when device is idle and there's no internet traffic. I' sure this device has no hardware issues because it works well at Windows and Ubuntu. I can provide any information you need. I'm newbie to FreeBSD and unix world but have some skill at C/C++ programming. I want to have this device working under FreeBSD and ready to spend as much time as needed. Thank you in advance, and sorry for mangled english.
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