Date: Fri, 17 Jun 2005 14:34:47 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-current@freebsd.org Cc: amd64@freebsd.org, current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: Fatal trap 12 in exec_copyout_strings() Message-ID: <200506171434.49008.jhb@FreeBSD.org> In-Reply-To: <20050529175056.GA99318@xor.obsecurity.org> References: <20050510223636.GA49927@xor.obsecurity.org> <20050529175056.GA99318@xor.obsecurity.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Sunday 29 May 2005 01:50 pm, Kris Kennaway wrote: > On Tue, May 10, 2005 at 03:36:36PM -0700, Kris Kennaway wrote: > > Got this on a dual amd64 with 8GB RAM running 6.0 from last week: > > > > Fatal trap 12: page fault while in kernel mode > > cpuid = 1; apic id = 01 > > fault virtual address = 0xffffffffa9cdc000 > > fault code = supervisor read, page not present > > instruction pointer = 0x8:0xffffffff8037759f > > stack pointer = 0x10:0xffffffffba1637d0 > > frame pointer = 0x10:0xffffffffba163820 > > code segment = base 0x0, limit 0xfffff, type 0x1b > > = DPL 0, pres 1, long 1, def32 0, gran 1 > > processor eflags = interrupt enabled, resume, IOPL = 0 > > current process = 52247 (sh) > > [thread pid 52247 tid 100149 ] > > Stopped at exec_copyout_strings+0x12f: > > db> wh > > Tracing pid 52247 tid 100149 td 0xffffff016e5724c0 > > exec_copyout_strings() at exec_copyout_strings+0x12f > > do_execve() at do_execve+0x39a > > kern_execve() at kern_execve+0xab > > execve() at execve+0x49 > > syscall() at syscall+0x382 > > Xfast_syscall() at Xfast_syscall+0xa8 > > --- syscall (59, FreeBSD ELF64, execve), rip = 0x80090622c, rsp = > > 0x7fffffffe058, rbp = 0xffffffff --- db> > > I've got this panic twice more since. Do you have a kernel.debug? Can you do 'list *exec_copyout_strings+0x12f'? I think I've seen reports of the linux32_exec_copyout_strings() having a similar fault as well on amd64. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200506171434.49008.jhb>