Date: Sat, 18 Oct 2014 06:43:58 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: "Tobias C. Berner" <tcberner@gmail.com> Subject: Re: kernel page fault with nfs Message-ID: <1995323.F02irpmLMA@ralph.baldwin.cx> In-Reply-To: <3430961.Iq02vNgBU7@noxon.firefly> References: <3430961.Iq02vNgBU7@noxon.firefly>
next in thread | previous in thread | raw e-mail | index | archive | help
On Friday, October 17, 2014 11:11:26 PM Tobias C. Berner wrote: > Hi > > > For some days now I've had problems with my current (last test with > r273178M). > > Sometimes when accessing a nfs-share there is a pagefault: > > ####################################################### > Fatal trap 12: page fault while in kernel mode > cpuid = 7; apic id = 07 > fault virtual address = 0xfffffe07cfe60400 > fault code = supervisor read data, page not present > instruction pointer = 0x20:0xffffffff80d4d4b6 > stack pointer = 0x28:0xfffffe086088b380 > frame pointer = 0x28:0xfffffe086088b3f0 > 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 = 43868 (mplayer) > > > #0 0xffffffff80926d29 in shutdown_nice (howto=1) at > /usr/src/sys/kern/kern_shutdown.c:207 > #1 0xffffffff80926a2d in kern_reboot (howto=260) at > /usr/src/sys/kern/kern_shutdown.c:444 > #2 0xffffffff80926f80 in panic (fmt=0x104 <Address 0x104 out of bounds>) at > /usr/src/sys/kern/kern_shutdown.c:698 > #3 0xffffffff8035f147 in panic_cmd_del (arg=0x0) at > /usr/src/sys/ddb/db_command.c:244 > #4 0xffffffff8035ed5d in db_command (cmd_table=0x0) at > /usr/src/sys/ddb/db_command.c:439 > #5 0xffffffff8035ead4 in db_command_loop () at > /usr/src/sys/ddb/db_command.c:488 #6 0xffffffff803615e0 in db_trap > (type=<value optimized out>, code=0) at /usr/src/sys/ddb/db_main.c:247 > #7 0xffffffff80966db1 in kdb_trap (type=12, code=0, tf=0xfffffe086088b2d0) > at /usr/src/sys/kern/subr_kdb.c:626 > #8 0xffffffff80d4f92c in trap_fatal (frame=0xfffffe086088b2d0, eva=<value > optimized out>) at /usr/src/sys/amd64/amd64/trap.c:835 > #9 0xffffffff80d4fcbc in trap_pfault (frame=0xfffffe086088b2d0, usermode=0) > at atomic.h:161 > #10 0xffffffff80d4f2de in trap (frame=0xfffffe086088b2d0) at > /usr/src/sys/amd64/amd64/trap.c:594 > #11 0xffffffff80d33822 in Xtss () at > /usr/src/sys/amd64/amd64/exception.S:154 #12 0xffffffff80d4d4b6 in > stack_save_td (st=<value optimized out>, td=<value optimized out>) at > /usr/src/sys/amd64/amd64/stack_machdep.c:74 > #13 0xffffffff809f30b2 in foffset_unlock (fp=<value optimized out>, > val=<value optimized out>, flags=<value optimized out>) at > /usr/src/sys/kern/vfs_vnops.c:700 > #14 0xffffffff8082faad in ncl_bioread (vp=0xfffff80201dd7490, > uio=0xfffffe086088b7d8, ioflag=<value optimized out>, > cred=0xfffff8015816a600) at > /usr/src/sys/fs/nfsclient/nfs_clbio.c:511 > #15 0xffffffff80e64381 in VOP_MARKATIME_APV (vop=<value optimized out>, > a=0xfffffe086088b650) at vnode_if.c:856 > #16 0xffffffff809f4dd5 in vn_read (fp=0xfffff80272490cd0, > uio=0xfffffe086088b7d8, active_cred=0xfffff8015816a600, flags=128, > td=0xfffff80000000000) at vnode_if.h:859 #17 0xffffffff809f5502 in > get_advice (fp=0xfffffe086088b730, uio=0x400) at > /usr/src/sys/kern/vfs_vnops.c:729 > #18 0xffffffff809f2b80 in vn_io_fault1 () at > /usr/src/sys/kern/vfs_vnops.c:1058 #19 0xffffffff809f0d3b in vn_io_fault > (fp=0xfffff80272490cd0, uio=0xfffffe086088b970, active_cred=0x400, > flags=128, td=0xfffff80000000000) at > /usr/src/sys/kern/vfs_vnops.c:128 > #20 0xffffffff80981d95 in freebsd6_pread (td=0xfffff802d93204a8, > uap=0xfffff9fb094c00a8) at /usr/src/sys/kern/sys_generic.c:217 > #21 0xffffffff80981ab8 in sys_cap_fcntls_get (td=<value optimized out>, > uap=0x800) at /usr/src/sys/kern/sys_capability.c:576 > #22 0xffffffff80981a43 in sys_cap_fcntls_get (td=<value optimized out>, > uap=0x0) at sx.h:183 > #23 0xffffffff80d503cb in amd64_syscall (td=0x45e400, traced=0) at > subr_syscall.c:87 > #24 0xffffffff80d33b0b in Xprot () at > /usr/src/sys/amd64/amd64/exception.S:324 #25 0x0000000806a7fe6a in ?? () > ################################################## The functions in this stack trace don't make sense. It is as if you are running kgdb against the wrong kernel. -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1995323.F02irpmLMA>