Date: Tue, 23 Sep 2008 10:00:09 GMT From: Alexey Lebedev <alexey@zhtw.org.ru> To: freebsd-alpha@FreeBSD.org Subject: Re: alpha/127248: System crashes when many (7) serial port terminals (vt320-vt510) connected to the server via com to usb adapter and 2-usb hubs. Message-ID: <200809231000.m8NA092P013281@freefall.freebsd.org>
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The following reply was made to PR alpha/127248; it has been noted by GNATS. From: Alexey Lebedev <alexey@zhtw.org.ru> To: bug-followup@FreeBSD.org, alexey@zhtw.org.ru Cc: Subject: Re: alpha/127248: System crashes when many (7) serial port terminals (vt320-vt510) connected to the server via com to usb adapter and 2-usb hubs. Date: Fri, 19 Sep 2008 16:06:37 +0400 I've added KDB, GDB, DDB. That's the backtrace: Tracing pid 28 tid 100026 td 0xfffffc001f510ac0 free_untl() at free_untl+0x114 free_unr() at free_unr+0xc4 devfs_free() at devfs_free+0x4c destroy_devl() at destroy_devl+0x280 destroy_devl() at destroy_devl+0x78 destory_dev() at destroy_dev+0x24 ttyfree() at rryfree+0x30 ucom_detach() at ucom_detach+0x68 uplcom_detach() at uplcom_detach+0x48 device_detach() at device_detach+0x84 usb_disconnect_port() at usb_disconnect_port+0xf0 uhub_explore() at uhub_explore+0x214 uhub_explore() at uhub_explore+0x1cc uhub_explore() at uhub_explore+0x1cc uhub_explore() at uhub_explore+0x1cc usb_discover() at usb_discover+0x48 usb_event_thread() at usb_event_thread+0xb8 fork_exit() at fork_exit+0xb0 exception_return() at exception_return --- root of call fraph --- I didn't find out how to copy this to email and just retyped it here by hands, so there maybe some mistakes, even though i was very careful. How to do that btw?
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