Date: Thu, 24 Jul 2008 13:50:06 GMT From: Kostik Belousov <kostikbel@gmail.com> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/125873: Repeated kernel panics, trap 12 page fault while in kernel mode (always with smbd). Message-ID: <200807241350.m6ODo5Ag042510@freefall.freebsd.org>
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The following reply was made to PR amd64/125873; it has been noted by GNATS. From: Kostik Belousov <kostikbel@gmail.com> To: Sean Cody <sean@franticfilms.com> Cc: bug-followup@freebsd.org, dfr@freebsd.org Subject: Re: amd64/125873: Repeated kernel panics, trap 12 page fault while in kernel mode (always with smbd). Date: Thu, 24 Jul 2008 16:47:09 +0300 On Tue, Jul 22, 2008 at 03:29:28PM +0000, Sean Cody wrote: > > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0x0 > fault code = supervisor read data, page not present > instruction pointer = 0x8:0xffffffff80468dff > stack pointer = 0x10:0xffffffffa2c339c0 > frame pointer = 0x10:0xffffff0013e4f8d0 > code segment = base 0x0, limit 0xfffff, type 0x1b > = DPL 0, pres 1, long 1, def32 0, gran 1 > processor eflags = resume, IOPL = 0 > current process = 34088 (smbd) > trap number = 12 > panic: page fault > cpuid = 0 > Uptime: 8h13m17s > Physical memory: 1011 MB > Dumping 162 MB: 147 131 115 99 83 67 51 35 19 3 > > #0 doadump () at pcpu.h:194 > 194 pcpu.h: No such file or directory. > in pcpu.h > (kgdb) bt > #0 doadump () at pcpu.h:194 > #1 0x0000000000000004 in ?? () > #2 0xffffffff80477699 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:409 > #3 0xffffffff80477a9d in panic (fmt=0x104 <Address 0x104 out of bounds>) at /usr/src/sys/kern/kern_shutdown.c:563 > #4 0xffffffff8072ec94 in trap_fatal (frame=0xffffff00152b9000, eva=18446742974531694592) at /usr/src/sys/amd64/amd64/trap.c:724 > #5 0xffffffff8072f90f in trap (frame=0xffffffffa2c33910) at /usr/src/sys/amd64/amd64/trap.c:251 > #6 0xffffffff8071560e in calltrap () at /usr/src/sys/amd64/amd64/exception.S:169 > #7 0xffffffff80468dff in lf_advlock (ap=Variable "ap" is not available. > ) at /usr/src/sys/kern/kern_lockf.c:294 > #8 0xffffffff8044ec5b in kern_fcntl (td=0xffffff00152b9000, fd=Variable "fd" is not available. > ) at vnode_if.h:1036 > #9 0xffffffff8044f01f in fcntl (td=0xffffff00152b9000, uap=0xffffffffa2c33be0) at /usr/src/sys/kern/kern_descrip.c:336 > #10 0xffffffff8072f2e7 in syscall (frame=0xffffffffa2c33c70) at /usr/src/sys/amd64/amd64/trap.c:852 > #11 0xffffffff8071581b in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:290 > #12 0x0000000801af707c in ?? () > Previous frame inner to this frame (corrupt stack?) > (kgdb) Exactly this code was heavily rewritten after 7.0 was released. Could you reproduce the problem on the latest 7-STABLE ?
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