Date: Sat, 24 Feb 2007 22:30:37 -0500 From: Nick Evans <nevans@syphen.net> To: current@freebsd.org Subject: Panic Attaching USB Devices Message-ID: <20070224223037.78aecc8f@lancer.syphen.net>
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I get consistent crashes on -CURRENT when attaching USB devices. This started a couple of weeks ago, unfortunately I've lost track as to exactly when. So far only affects one particular system the motherboard is an Intel 865GSA with ICH5 and a Pentium D 915. My Dell Latitude C400 attaches and detaches USB devices without problem and runs -CURRENT as well. Both are compiled as of a few days ago. Here's the panic and trace: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x4 fault code = supervisor read, page not present instruction pointer = 0x20:0xc04c0a86 stack pointer = 0x28:0xe43ff3b8 frame pointer = 0x28:0xe43ff3b8 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 32 (usb4) [thread pid 32 tid 100033 ] Stopped at usbd_get_interface_descriptor+0x6: movl 0x4(%eax),%eax db> bt Tracing pid 32 tid 100033 td 0xc402bae0 usbd_get_interface_descriptor(0,0,c06c5000,c40d59e0,80000000,...) at usbd_get_interface_descriptor+0x6 ukbd_attach(c4614b00) at ukbd_attach+0x58 device_attach(c4614b00,e43ffc7c,0,e43ffc70,c427beb0,...) at device_attach+0x58 device_probe_and_attach(c4614b00) at device_probe_and_attach+0xc4 usbd_probe_and_attach(c3fd3a00,c4203300,2,2) at usbd_probe_and_attach+0x1e4 usbd_new_device(c3fd3a00,c3f90000,1,3,2,c4040644) at usbd_new_device+0x2e3 uhub_explore(c3fd3c00) at uhub_explore+0x223 usb_discover(c4043340,c4043340,e43ffd24,c05022d7,c4043340,...) at usb_discover+0x2f usb_event_thread(c4043340,e43ffd38) at usb_event_thread+0x8a fork_exit(c04bd304,c4043340,e43ffd38) at fork_exit+0x7b fork_trampoline() at fork_trampoline+0x8 --- trap 0, eip = 0, esp = 0xe43ffd70, ebp = 0 --- This is a reproducible problem so I can try other debugging/test as directed. Thanks, Nick
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