DDB trace : panic: mutex vm object not owned at /files1/src/sys/vm/vm_object.c:695 cpuid = 0 KDB: enter: panic [thread pid 761 tid 100087 ] Stopped at kdb_enter+0x2b: nop db> where Tracing pid 761 tid 100087 td 0xc18d5360 kdb_enter(c090fb9f) at kdb_enter+0x2b panic(c090ee7d,c092acac,c092c05c,2b7,0) at panic+0x127 _mtx_assert(c1947708,1,c092c05c,2b7) at _mtx_assert+0x66 vm_object_page_clean(c1947708,0,0,0,0,1) at vm_object_page_clean+0x23 nfs_vinvalbuf(c1950820,1,c18d5360,1) at nfs_vinvalbuf+0x99 nfs_bioread(c1950820,c740cc64,20000,c1612200,c740cb70) at nfs_bioread+0x3a7 nfs_read(c740cb9c) at nfs_read+0x2b VOP_READ_APV(c09c7260,c740cb9c) at VOP_READ_APV+0x7e vn_read(c1755120,c740cc64,c1612200,0,c18d5360) at vn_read+0x1f7 dofileread(c18d5360,3,c1755120,c740cc64,ffffffff) at dofileread+0x89 kern_readv(c18d5360,3,c740cc64,8280000,1000) at kern_readv+0x36 read(c18d5360,c740cd04,c18d869c,c,c18d5360) at read+0x45 syscall(3b,3b,3b,ffffffff,28385580) at syscall+0x27e Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (3, FreeBSD ELF32, read), eip = 0x2835e3bf, esp = 0xbfbfe99c, ebp = 0xbfbfe9b8 --- KGDB trace : multi-cur# kgdb kernel.debug /files1/tmp/vmcore.1 [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: panic: mutex vm object not owned at /files1/src/sys/vm/vm_object.c:695 cpuid = 0 KDB: enter: panic Physical memory: 87 MB Dumping 27 MB: 12 #0 doadump () at pcpu.h:166 166 __asm __volatile("movl %%fs:0,%0" : "=r" (td)); (kgdb) bt #0 doadump () at pcpu.h:166 #1 0xc047501b in db_fncall (dummy1=-952055868, dummy2=0, dummy3=1016, dummy4=0xc740c798 "°Ç_at_Çø\003") at /files1/src/sys/ddb/db_command.c:479 #2 0xc0474e2c in db_command (last_cmdp=0xc09e1804, cmd_table=0x0) at /files1/src/sys/ddb/db_command.c:395 #3 0xc0474eea in db_command_loop () at /files1/src/sys/ddb/db_command.c:446 #4 0xc0476b01 in db_trap (type=3, code=0) at /files1/src/sys/ddb/db_main.c:221 #5 0xc06ae4a0 in kdb_trap (type=3, code=0, tf=0xc740c928) at /files1/src/sys/kern/subr_kdb.c:481 #6 0xc088a960 in trap (frame= {tf_fs = -952107000, tf_es = -1066794968, tf_ds = -1064239064, tf_edi = -1064243587, tf_esi = 1, tf_ebp = -952055448, tf_isp = -952055468, tf_ebx = -952055404, tf_edx = 0, tf_ecx = -1056755712, tf_eax = 18, tf_trapno = 3, tf_err = 0, tf_eip = -1066737209, tf_cs = 32, tf_eflags = 642, tf_esp = -952055416, tf_ss = -1066845133}) at /files1/src/sys/i386/i386/trap.c:622 #7 0xc0875c0a in calltrap () at /files1/src/sys/i386/i386/exception.s:138 #8 0xc06ae1c7 in kdb_enter (msg=0x12 <Address 0x12 out of bounds>) at cpufunc.h:60 #9 0xc0693c33 in panic (fmt=0xc090ee7d "mutex %s not owned at %s:%d") at /files1/src/sys/kern/kern_shutdown.c:549 #10 0xc068b826 in _mtx_assert (m=0xc1947708, what=-1056755712, file=0xc092c05c "/files1/src/sys/vm/vm_object.c", line=695) at /files1/src/sys/kern/kern_mutex.c:754 #11 0xc07eca97 in vm_object_page_clean (object=0xc1947708, start=0, end=Unhandled dwarf expression opcode 0x93 ) at /files1/src/sys/vm/vm_object.c:695 #12 0xc07734b5 in nfs_vinvalbuf (vp=0xc1950820, flags=1, td=0xc18d5360, intrflg=1) at /files1/src/sys/nfsclient/nfs_bio.c:1316 #13 0xc07719c7 in nfs_bioread (vp=0xc1950820, uio=0xc740cc64, ioflag=0, cred=0xc1612200) at /files1/src/sys/nfsclient/nfs_bio.c:423 #14 0xc077cce3 in nfs_read (ap=0x12) at /files1/src/sys/nfsclient/nfs_vnops.c:981 #15 0xc089c0c6 in VOP_READ_APV (vop=0x12, a=0xc740cb9c) at vnode_if.c:631 #16 0xc06f95a7 in vn_read (fp=0xc1755120, uio=0xc740cc64, active_cred=0xc1612200, flags=0, td=0xc18d5360) at vnode_if.h:343 #17 0xc06bad21 in dofileread (td=0xc18d5360, fd=3, fp=0xc1755120, auio=0xc740cc64, offset=Unhandled dwarf expression opcode 0x93 ) at file.h:241 #18 0xc06babb6 in kern_readv (td=0xc18d5360, fd=3, auio=0xc740cc64) at /files1/src/sys/kern/sys_generic.c:192 #19 0xc06baae1 in read (td=0xc18d5360, uap=0xc1033000) at /files1/src/sys/kern/sys_generic.c:116 #20 0xc088b1c6 in syscall (frame= {tf_fs = 59, tf_es = 59, tf_ds = 59, tf_edi = -1, tf_esi = 674780544, tf_ebp = -1077941832, tf_isp = -952054428, tf_ebx = 674691968, tf_edx = 674786132, tf_ecx = 136839168, tf_eax = 3, tf_trapno = 12, tf_err = 2, tf_eip = 674620351, tf_cs = 51, tf_eflags = 530, tf_esp = -1077941860, tf_ss = 59}) at /files1/src/sys/i386/i386/trap.c:1016 #21 0xc0875c5f in Xint0x80_syscall () at /files1/src/sys/i386/i386/exception.s:191 #22 0x00000033 in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) (kgdb) frame 11 #11 0xc07eca97 in vm_object_page_clean (object=0xc1947708, start=0, end=Unhandled dwarf expression opcode 0x93 ) at /files1/src/sys/vm/vm_object.c:695 695 VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); (kgdb) list 690 vm_pindex_t pi; 691 int clearobjflags; 692 int pagerflags; 693 int curgeneration; 694 695 VM_OBJECT_LOCK_ASSERT(object, MA_OWNED); 696 if (object->type != OBJT_VNODE || 697 (object->flags & OBJ_MIGHTBEDIRTY) == 0) 698 return; 699 (kgdb) print *object $2 = {mtx = {mtx_object = {lo_name = 0xc092acac "vm object", lo_type = 0xc092c04c "standard object", lo_flags = 21168128, lo_witness_data = {lod_list = {stqe_next = 0xc0a0b398}, lod_witness = 0xc0a0b398}}, mtx_lock = 4, mtx_recurse = 0}, object_list = { tqe_next = 0x0, tqe_prev = 0xc1947798}, shadow_head = {lh_first = 0x0}, shadow_list = {le_next = 0x0, le_prev = 0x0}, memq = {tqh_first = 0x0, tqh_last = 0xc1947734}, root = 0x0, size = 1, generation = 1, ref_count = 0, shadow_count = 0, type = 2 '\002', flags = 0, pg_color = 0, paging_in_progress = 0, resident_page_count = 0, backing_object = 0x0, backing_object_offset = 0, pager_object_list = {tqe_next = 0x0, tqe_prev = 0x0}, handle = 0xc1950820, un_pager = {vnp = {vnp_size = 987}, devp = {devp_pglist = { tqh_first = 0x3db, tqh_last = 0x0}}, swp = {swp_bcount = 987}}} this is with a quite recent current : FreeBSD 7.0-CURRENT compiled on Thu May 25 09:35:31 CEST 2006 with : /files1/src/sys/vm/vm_object.c: $FreeBSD: src/sys/vm/vm_object.c,v 1.359 2006/03/02 22:13:27 tegge Exp $ /files1/src/sys/nfsclient/nfs_bio.c: $FreeBSD: src/sys/nfsclient/nfs_bio.c,v 1.157 2006/05/25 01:00:35 ups Exp $ /files1/src/sys/kern/sys_generic.c: $FreeBSD: src/sys/kern/sys_generic.c,v 1.148 2006/01/06 16:34:22 jhb Exp $ /files1/src/sys/nfsclient/nfs_vnops.c: $FreeBSD: src/sys/nfsclient/nfs_vnops.c,v 1.266 2006/05/19 00:04:24 mohans Exp $ TfHReceived on Thu May 25 2006 - 16:30:59 UTC
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