During using NFS I encountered a panic as follows: weongyo# kgdb /boot/kernel/kernel /var/crash/vmcore.0 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 "amd64-marcel-freebsd"... Unread portion of the kernel message buffer: panic: nfs: bioread, not dir cpuid = 3 Uptime: 12d21h3m33s Physical memory: 3952 MB Dumping 1722 MB: 1707 Fatal trap 1: privileged instruction fault while in kernel mode cpuid = 2; apic id = 02 instruction pointer = 0x8:0xffffff0004d5e60e stack pointer = 0x10:0xffffff80000b7b50 frame pointer = 0x10:0x0 code segment = base rx0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 29 (irq18: re0 atapci*) trap number = 1 1691 1675 1659 1643 1627 1611 1595 1579 1563 1547 1531 1515 1499 1483 1467 1451 1435 1419 1403 1387 1371 1355 1339 1323 1307 1291 1275 1259 1243 1227 1211 1195 1179 1163 1147 1131 1115 1099 1083 1067 1051 1035 1019 1003 987 971 955 939 923 907 891 875 (CTRL-C to abort) 859 843 (CTRL-C to abort) 827 (CTRL-C to abort) 811 (CTRL-C to abort) 795 779 763 747 731 715 699 683 667 651 635 (CTRL-C to abort) 619 603 587 571 555 539 523 507 491 475 459 (CTRL-C to abort) 443 427 ( CTRL-C to abort) 411 395 379 363 347 331 315 299 283 267 251 235 219 203 187 17 1 155 139 123 107 91 75 59 43 27 11 Reading symbols from /boot/kernel/snd_hda.ko...Reading symbols from /boot/kernel /snd_hda.ko.symbols...done. done. Loaded symbols for /boot/kernel/snd_hda.ko Reading symbols from /boot/kernel/sound.ko...Reading symbols from /boot/kernel/s ound.ko.symbols...done. done. Loaded symbols for /boot/kernel/sound.ko Reading symbols from /boot/modules/vboxdrv.ko...done. Loaded symbols for /boot/modules/vboxdrv.ko Reading symbols from /boot/modules/vboxnetflt.ko...done. Loaded symbols for /boot/modules/vboxnetflt.ko Reading symbols from /boot/kernel/netgraph.ko...Reading symbols from /boot/kerne l/netgraph.ko.symbols...done. done. Loaded symbols for /boot/kernel/netgraph.ko Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from /boot/kern el/linprocfs.ko.symbols...done. done. Loaded symbols for /boot/kernel/linprocfs.ko Reading symbols from /boot/kernel/linux.ko...Reading symbols from /boot/kernel/l inux.ko.symbols...done. done. Loaded symbols for /boot/kernel/linux.ko #0 doadump () at pcpu.h:195 195 pcpu.h: No such file or directory. in pcpu.h (kgdb) bt #0 doadump () at pcpu.h:195 #1 0x0000000000000004 in ?? () #2 0xffffffff80519f09 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:418 #3 0xffffffff8051a312 in panic (fmt=0x104 <Address 0x104 out of bounds>) at /usr/src/sys/kern/kern_shutdown.c:574 #4 0xffffffff806aa45b in nfs_bioread (vp=0xffffff01117dbdc8, uio=0xffffff8075b38ac0, ioflag=4, cred=0xffffff0004a5d700) at /usr/src/sys/nfsclient/nfs_bio.c:399 #5 0xffffffff805a1cf4 in kern_readlink (td=0xffffff002e35aab0, path=Variable "p ath" is not available. ) at vnode_if.h:773 #6 0xffffffff807dab97 in syscall (frame=0xffffff8075b38c80) at /usr/src/sys/amd64/amd64/trap.c:899 #7 0xffffffff807c54bb in Xfast_syscall () at /usr/src/sys/amd64/amd64/exception.S:339 #8 0x0000000803a9f3cc in ?? () Previous frame inner to this frame (corrupt stack?) (kgdb) f 4 #4 0xffffffff806aa45b in nfs_bioread (vp=0xffffff01117dbdc8, uio=0xffffff8075b38ac0, ioflag=4, cred=0xffffff0004a5d700) at /usr/src/sys/nfsclient/nfs_bio.c:399 399 panic("nfs: bioread, not dir"); (kgdb) list 394 mtx_lock(&np->n_mtx); 395 if (np->n_flag & NMODIFIED) { 396 mtx_unlock(&np->n_mtx); 397 if (vp->v_type != VREG) { 398 if (vp->v_type != VDIR) 399 panic("nfs: bioread, not dir"); 400 (nmp->nm_rpcops->nr_invaldir)(vp); 401 error = nfs_vinvalbuf(vp, V_SAVE, td, 1); 402 if (error) 403 goto out; (kgdb) p vp->v_type $1 = VLNK (kgdb) p *vp $3 = { v_type = VLNK, v_tag = 0xffffffff808cc78f "nfs", v_op = 0xffffffff80acbcc0, v_data = 0xffffff001750c298, v_mount = 0xffffff0004a4fa80, v_nmntvnodes = { tqe_next = 0xffffff01261fd7e0, tqe_prev = 0xffffff01253a0220 }, v_un = { vu_mount = 0x0, vu_socket = 0x0, vu_cdev = 0x0, vu_fifoinfo = 0x0, vu_yield = 0 }, v_hashlist = { le_next = 0xffffff012653dbd0, le_prev = 0xffffff80003a2dc0 }, v_hash = 567141703, v_cache_src = { lh_first = 0x0 }, v_cache_dst = { tqh_first = 0xffffff004ff59618, tqh_last = 0xffffff004ff59638 }, v_cache_dd = 0x0, v_cstart = 0, v_lasta = 0, v_lastw = 0, v_clen = 0, v_lock = { lk_object = { lo_name = 0xffffffff808cc78f "nfs", lo_type = 0xffffffff808cc78f "nfs", lo_flags = 70844416, lo_witness_data = { lod_list = { stqe_next = 0x0 }, lod_witness = 0x0 } }, lk_interlock = 0xffffffff80b31f60, lk_flags = 262208, lk_sharecount = 0, lk_waitcount = 0, lk_exclusivecount = 1, lk_prio = 80, lk_timo = 51, lk_lockholder = 0xffffff002e35aab0, lk_newlock = 0x0 }, v_interlock = { lock_object = { lo_name = 0xffffffff808b783a "vnode interlock", lo_type = 0xffffffff808b783a "vnode interlock", lo_flags = 16973824, lo_witness_data = { lod_list = { stqe_next = 0x0 }, lod_witness = 0x0 } }, mtx_lock = 4, mtx_recurse = 0 }, v_vnlock = 0xffffff01117dbe60, v_holdcnt = 2, v_usecount = 1, v_iflag = 0, v_vflag = 0, v_writecount = 0, v_freelist = { tqe_next = 0x0, tqe_prev = 0x0 }, v_bufobj = { bo_mtx = 0xffffff01117dbeb0, bo_clean = { bv_hd = { tqh_first = 0x0, tqh_last = 0xffffff01117dbf20 }, bv_root = 0x0, bv_cnt = 0 }, bo_dirty = { bv_hd = { tqh_first = 0x0, tqh_last = 0xffffff01117dbf40 }, bv_root = 0x0, bv_cnt = 0 }, bo_numoutput = 0, bo_flag = 0, bo_ops = 0xffffffff80acc040, bo_bsize = 32768, bo_object = 0xffffff009f58a360, bo_synclist = { le_next = 0x0, le_prev = 0xffffff000497e048 }, bo_private = 0xffffff01117dbdc8, __bo_vnode = 0xffffff01117dbdc8 }, v_pollinfo = 0x0, v_label = 0x0, v_lockf = 0x0 } How-To-Repeat: don't know how to repeat this problem that it's my first time to encounter this problem.
Responsible Changed From-To: freebsd-bugs->freebsd-fs Over to maintainer(s).
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped
Keyword: crash – in lieu of summary line prefix: [panic] * bulk change for the keyword * summary lines may be edited manually (not in bulk). Keyword descriptions and search interface: <https://bugs.freebsd.org/bugzilla/describekeywords.cgi>