Jeremie Le Hen wrote: > Another instance, with a sligthly different stacktrace: > > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > 0xfffffe00e612ae40 > kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe00e612aef0 > vpanic() at vpanic+0x126/frame 0xfffffe00e612af30 > kassert_panic() at kassert_panic+0x136/frame 0xfffffe00e612afa0 > _vn_lock() at _vn_lock+0x70/frame 0xfffffe00e612b010 > zfs_lookup() at zfs_lookup+0x44d/frame 0xfffffe00e612b0a0 > zfs_freebsd_lookup() at zfs_freebsd_lookup+0x91/frame > 0xfffffe00e612b1e0 > VOP_CACHEDLOOKUP_APV() at VOP_CACHEDLOOKUP_APV+0xea/frame > 0xfffffe00e612b210 > vfs_cache_lookup() at vfs_cache_lookup+0xcf/frame 0xfffffe00e612b260 > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0xea/frame 0xfffffe00e612b290 > null_lookup() at null_lookup+0x8b/frame 0xfffffe00e612b300 > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0xea/frame 0xfffffe00e612b330 > lookup() at lookup+0x590/frame 0xfffffe00e612b3c0 > namei() at namei+0x524/frame 0xfffffe00e612b490 > vn_open_cred() at vn_open_cred+0x28f/frame 0xfffffe00e612b5e0 > vop_stdvptocnp() at vop_stdvptocnp+0x17d/frame 0xfffffe00e612b920 > null_vptocnp() at null_vptocnp+0x2b/frame 0xfffffe00e612b980 > VOP_VPTOCNP_APV() at VOP_VPTOCNP_APV+0xf0/frame 0xfffffe00e612b9b0 > vn_vptocnp_locked() at vn_vptocnp_locked+0x118/frame > 0xfffffe00e612ba20 > vn_fullpath1() at vn_fullpath1+0x1ca/frame 0xfffffe00e612ba80 > kern___getcwd() at kern___getcwd+0xd6/frame 0xfffffe00e612bae0 > amd64_syscall() at amd64_syscall+0x265/frame 0xfffffe00e612bbf0 > Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe00e612bbf0 > > > > kgdb stacktrace: > > #1 0xffffffff80302ca5 in db_fncall (dummy1=<value optimized out>, > dummy2=<value optimized out>, dummy3=<value optimized out>, > dummy4=<value optimized out>) at > /usr/src-svn/sys/ddb/db_command.c:578 > #2 0xffffffff8030298d in db_command (cmd_table=<value optimized > out>) > at /usr/src-svn/sys/ddb/db_command.c:449 > #3 0xffffffff80306bef in db_script_exec ( > scriptname=0xfffffe00e612aad0 "kdb.enter.panic", > warnifnotfound=<value optimized out>) > at /usr/src-svn/sys/ddb/db_script.c:302 > #4 0xffffffff80306a26 in db_script_kdbenter (eventname=0x0) > at /usr/src-svn/sys/ddb/db_script.c:324 > #5 0xffffffff803050ab in db_trap (type=<value optimized out>, > code=0) > at /usr/src-svn/sys/ddb/db_main.c:230 > #6 0xffffffff80696c33 in kdb_trap (type=3, code=0, tf=<value > optimized out>) > at /usr/src-svn/sys/kern/subr_kdb.c:656 > #7 0xffffffff809b0e92 in trap (frame=0xfffffe00e612ae20) > at /usr/src-svn/sys/amd64/amd64/trap.c:571 > #8 0xffffffff80996122 in calltrap () > at /usr/src-svn/sys/amd64/amd64/exception.S:231 > #9 0xffffffff806963ee in kdb_enter (why=0xffffffff80b3c985 "panic", > msg=<value optimized out>) at cpufunc.h:63 > #10 0xffffffff8065ec96 in vpanic (fmt=<value optimized out>, > ap=<value optimized out>) at > /usr/src-svn/sys/kern/kern_shutdown.c:752 > #11 0xffffffff8065eb46 in kassert_panic (fmt=<value optimized out>) > at /usr/src-svn/sys/kern/kern_shutdown.c:647 > #12 0xffffffff807167c0 in _vn_lock (vp=0xfffff80013ca41d8, > flags=2098176, > file=0xffffffff81508fe5 > "/usr/src-svn/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c", > line=1518) > at /usr/src-svn/sys/kern/vfs_vnops.c:1436 > #13 0xffffffff8148417d in zfs_lookup () > at > /usr/src-svn/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:1518 > #14 0xffffffff814844e1 in zfs_freebsd_lookup (ap=0xfffffe00e612b220) > at > /usr/src-svn/sys/modules/zfs/../../cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c:6106 > #15 0xffffffff80a6b34a in VOP_CACHEDLOOKUP_APV (vop=<value optimized > out>, > a=<value optimized out>) at vnode_if.c:195 > #16 0xffffffff806f480f in vfs_cache_lookup (ap=<value optimized out>) > at vnode_if.h:80 > #17 0xffffffff80a6b1fa in VOP_LOOKUP_APV (vop=<value optimized out>, > a=<value optimized out>) at vnode_if.c:127 > #18 0xffffffff80578ecb in null_lookup (ap=0xfffffe00e612b378) at > vnode_if.h:54 > #19 0xffffffff80a6b1fa in VOP_LOOKUP_APV (vop=<value optimized out>, > a=<value optimized out>) at vnode_if.c:127 > #20 0xffffffff806fc980 in lookup (ndp=0xfffffe00e612b678) at > vnode_if.h:54 > #21 0xffffffff806fc0f4 in namei (ndp=0xfffffe00e612b678) > at /usr/src-svn/sys/kern/vfs_lookup.c:298 > #22 0xffffffff80715f5f in vn_open_cred (ndp=0xfffffe00e612b678, > flagp=0xfffffe00e612b800, cmode=0, vn_open_flags=<value optimized > out>, > cred=0xfffff8006c41de00, fp=0x0) at > /usr/src-svn/sys/kern/vfs_vnops.c:205 > #23 0xffffffff806f7b5d in vop_stdvptocnp (ap=<value optimized out>) > at /usr/src-svn/sys/kern/vfs_default.c:797 > #24 0xffffffff805797fb in null_vptocnp (ap=0xfffffe00e612b9c8) > at /usr/src-svn/sys/fs/nullfs/null_vnops.c:824 > #25 0xffffffff80a6fb40 in VOP_VPTOCNP_APV (vop=<value optimized out>, > a=<value optimized out>) at vnode_if.c:3647 > #26 0xffffffff806f5048 in vn_vptocnp_locked (vp=0xfffffe00e612ba50, > cred=0xfffff8006c41de00, > buf=0xfffff80002bae000 "...", > buflen=0xfffffe00e612ba4c) at vnode_if.h:1564 > #27 0xffffffff806f4b6a in vn_fullpath1 (td=0xfffff80061c26490, > vp=0xfffff80058178938, rdir=0xfffff80013dc0b10, > buf=0xfffff80002bae000 "...", > retbuf=0xfffffe00e612bab0, buflen=1016) > at /usr/src-svn/sys/kern/vfs_cache.c:1330 > #28 0xffffffff806f4906 in kern___getcwd (td=0xfffff80061c26490, > buf=0x7fffffffcc18 <Address 0x7fffffffcc18 out of bounds>, > bufseg=UIO_USERSPACE, buflen=Cannot access memory at address > 0x400 > ) at /usr/src-svn/sys/kern/vfs_cache.c:1094 > #29 0xffffffff809b1af5 in amd64_syscall (td=0xfffff80061c26490, > traced=0) > at subr_syscall.c:133 > #30 0xffffffff8099640b in Xfast_syscall () > at /usr/src-svn/sys/amd64/amd64/exception.S:390 > > > > > On Mon, Feb 10, 2014 at 09:56:07PM +0100, Jeremie Le Hen wrote: > > Hi, > > > > I run 11.0-CURRENT r260696 on amd64. > > > > I've got the following panic: > > > > panic: LK_RETRY set with incompatible flags (0x200400) or an error > > occured (11) > > cpuid = 1 > > KDB: stack backtrace: > > db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame > > 0xfffffe00e5e53980 > > kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe00e5e53a30 > > vpanic() at vpanic+0x126/frame 0xfffffe00e5e53a70 > > kassert_panic() at kassert_panic+0x136/frame 0xfffffe00e5e53ae0 > > _vn_lock() at _vn_lock+0x70/frame 0xfffffe00e5e53b50 > > zfs_lookup() at zfs_lookup+0x44d/frame 0xfffffe00e5e53be0 > > zfs_freebsd_lookup() at zfs_freebsd_lookup+0x91/frame > > 0xfffffe00e5e53d20 > > VOP_CACHEDLOOKUP_APV() at VOP_CACHEDLOOKUP_APV+0xea/frame > > 0xfffffe00e5e53d50 > > vfs_cache_lookup() at vfs_cache_lookup+0xcf/frame > > 0xfffffe00e5e53da0 > > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0xea/frame 0xfffffe00e5e53dd0 > > null_lookup() at null_lookup+0x8b/frame 0xfffffe00e5e53e40 > > VOP_LOOKUP_APV() at VOP_LOOKUP_APV+0xea/frame 0xfffffe00e5e53e70 > > lookup() at lookup+0x590/frame 0xfffffe00e5e53f00 > > namei() at namei+0x524/frame 0xfffffe00e5e53fd0 > > vn_open_cred() at vn_open_cred+0x28f/frame 0xfffffe00e5e54120 > > vop_stdvptocnp() at vop_stdvptocnp+0x17d/frame 0xfffffe00e5e54460 > > null_vptocnp() at null_vptocnp+0x2b/frame 0xfffffe00e5e544c0 > > VOP_VPTOCNP_APV() at VOP_VPTOCNP_APV+0xf0/frame 0xfffffe00e5e544f0 > > vn_vptocnp_locked() at vn_vptocnp_locked+0x118/frame > > 0xfffffe00e5e54560 > > vn_fullpath1() at vn_fullpath1+0x1ca/frame 0xfffffe00e5e545c0 > > vn_fullpath() at vn_fullpath+0xc5/frame 0xfffffe00e5e54620 > > export_fd_to_sb() at export_fd_to_sb+0x2fd/frame 0xfffffe00e5e54850 > > kern_proc_filedesc_out() at kern_proc_filedesc_out+0x237/frame > > 0xfffffe00e5e548d0 > > sysctl_kern_proc_filedesc() at sysctl_kern_proc_filedesc+0x66/frame > > 0xfffffe00e5e54940 > > sysctl_root() at sysctl_root+0x1e4/frame 0xfffffe00e5e54990 > > userland_sysctl() at userland_sysctl+0x192/frame 0xfffffe00e5e54a30 > > sys___sysctl() at sys___sysctl+0x74/frame 0xfffffe00e5e54ae0 > > amd64_syscall() at amd64_syscall+0x265/frame 0xfffffe00e5e54bf0 > > Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe00e5e54bf0 > > --- syscall (202, FreeBSD ELF64, sys___sysctl), rip = 0x801027d1a, > > rsp = 0x7fffffffc758, rbp = 0x7fffffffc790 --- > > > > > > > > I can provide core upon request. > > > > -- > > Jeremie Le Hen > > > > Scientists say the world is made up of Protons, Neutrons and > > Electrons. > > They forgot to mention Morons. > > _______________________________________________ > > freebsd-current_at_freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to > > "freebsd-current-unsubscribe_at_freebsd.org" > > I vaguely recall that the last time the vnode was a root of the ZFS file system, so it seemed it was doing a ".." lookup at the root and tried to lock the root vp, which was already locked? I have no idea if this should ever happen when using a null mount with ZFS, but the attached trivial patch might avoid the panic? I've cc'd Kostik, since I think he might be familiar with nullfs. rick > > -- > Jeremie Le Hen > > Scientists say the world is made up of Protons, Neutrons and > Electrons. > They forgot to mention Morons. > _______________________________________________ > freebsd-current_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to > "freebsd-current-unsubscribe_at_freebsd.org" >
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