Date: Fri, 27 Jun 2008 23:31:21 +0100 From: Mike Clarke <jmc-freebsd@milibyte.co.uk> To: freebsd-questions@freebsd.org Subject: Rev 7.0 kernel panic with USB camera Message-ID: <200806272331.21674.jmc-freebsd@milibyte.co.uk>
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I get a kernel panic whenever I connect my digital camera (Olympus C-2040Z) on my 7.0 system. It looks like a rev. 7 related problem, everything works fine on the same PC if I boot into rev. 6.3. This might already be covered by PR usb/117313: [umass] [panic] panic on usb camera insertionraised <http://www.freebsd.org/cgi/query-pr.cgi?pr=usb/117313>; but wading through crash dumps is new uncharted territory for me. Could anyone advise me if the attached kgdb output suggests that it's the same problem or something different? ----------------------------------------------------------------- kestrel:/boot/kernel% uname -a FreeBSD kestrel.lan 7.0-RELEASE FreeBSD 7.0-RELEASE #0: Sun Feb 24 19:59:52 UTC 2008 root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 kestrel:/boot/kernel% sudo kgdb kernel.symbols /usr/crash/vmcore.5 Password: [GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"] GNU gdb 6.1.1 [FreeBSD] Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i386-marcel-freebsd". Unread portion of the kernel message buffer: Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x20:0x0 stack pointer = 0x28:0xdd6f669c frame pointer = 0x28:0xdd6f66dc 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 = 13 (swi4: clock sio) trap number = 12 panic: page fault cpuid = 0 Uptime: 3m15s Physical memory: 755 MB Dumping 74 MB: 59 43 27 11 #0 doadump () at pcpu.h:195 195 pcpu.h: No such file or directory. in pcpu.h (kgdb) backtrace #0 doadump () at pcpu.h:195 #1 0xc0754457 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409 #2 0xc0754719 in panic (fmt=Variable "fmt" is not available. ) at /usr/src/sys/kern/kern_shutdown.c:563 #3 0xc0a4905c in trap_fatal (frame=0xdd6f665c, eva=0) at /usr/src/sys/i386/i386/trap.c:899 #4 0xc0a492e0 in trap_pfault (frame=0xdd6f665c, usermode=0, eva=0) at /usr/src/sys/i386/i386/trap.c:812 #5 0xc0a49c8c in trap (frame=0xdd6f665c) at /usr/src/sys/i386/i386/trap.c:490 #6 0xc0a2fc0b in calltrap () at /usr/src/sys/i386/i386/exception.s:139 #7 0x00000000 in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) -- Mike Clarke
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