Date: Sat, 01 Oct 2011 17:16:04 +0200 From: Harald Schmalzbauer <h.schmalzbauer@omnilan.de> To: Attilio Rao <attilio@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: beta2 panic: VAPPEND without VWRITE Message-ID: <4E872EB4.1050605@omnilan.de> In-Reply-To: <CAJ-FndCbanfPVjnp3TgRJN-TbXA0=-_DBkkS7B93H6eNVcP6DA@mail.gmail.com> References: <4E8723D7.4080502@omnilan.de> <CAJ-FndCbanfPVjnp3TgRJN-TbXA0=-_DBkkS7B93H6eNVcP6DA@mail.gmail.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigB174BC5CAB9A2000400E0C93 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable schrieb Attilio Rao am 01.10.2011 16:49 (localtime): > Can you please show the panic message? Sorry, I forgot to add it here: free indoe /var/123088 had 8 blocks panic: VAPPEND withour VWRITE >> cpuid =3D 0 >> KDB: enter: panic >> [ thread pid 1445 tid 100126 ] >> Stopped at kbd_enter+0x2b: movq $0,0x918a52(%rip) >> db> bt >> Tracing pid 1445 tid 100126 td 0xfffffe000510d460 >> kdb_enter() at kbd_enter+0x3b >> panic() at panic+0x180 >> vn_isdisk() at vn_isdisk >> ufs_accessx() at ufs_accessx+0x188 >> vop_stdaccess() at vop_stdaccess+0x43 >> unionfs_access() at unionfs_access+0x1c4 >> vn_open_cred() at vn_open_cred+0x547 >> kern_opneat() at kern_openat+0x1f9 >> syscallenter() at syscallenter+0x1aa >> syscall() at syscall+0x4c >> Xfast_syscall() at Xfast_syscall+0xdd >> --- syscall (5, FreeBSD ELF64, open), rip =3D 0x801799f2c, rsp =3D >> 0x7fffffffb388, rbp =3D 0x8 --- I'ts reproducable with exact the same hex-numbers with 'scp' when scp tries to alter knwon_hosts, which is on unionfs. Here's some LORs, I haven=C3=84t checked if they're already known. I don'= t have the known-LORs-URL handy... lock order reversal: 1st 0xfffffe000519c278 unionfs (unionfs) @ /usr/src/sys/modules/unionfs/../../fs/unionfs/union_subr.c:356 2nd 0xfffffe000519c458 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2246 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 __lockmgr_args() at __lockmgr_args+0xdc6 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vputx() at vputx+0x328 unionfs_noderem() at unionfs_noderem+0x1c4 unionfs_reclaim() at unionfs_reclaim+0x11 vgonel() at vgonel+0x105 vrecycle() at vrecycle+0x4c unionfs_inactive() at unionfs_inactive+0x20 vinactive() at vinactive+0x72 vputx() at vputx+0x386 kern_statat_vnhook() at kern_statat_vnhook+0x11d kern_statat() at kern_statat+0x15 stat() at stat+0x2a syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (188, FreeBSD ELF64, stat), rip =3D 0x800dc7ecc, rsp =3D 0x7fffffffd6a8, rbp =3D 0x801441190 --- lock order reversal: 1st 0xffffff80e9bf59f8 bufwait (bufwait) @ /usr/src/sys/kern/vfs_bio.c:2= 658 2nd 0xfffffe00051a7a00 dirhash (dirhash) @ /usr/src/sys/ufs/ufs/ufs_dirhash.c:284 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 _sx_xlock() at _sx_xlock+0x55 ufsdirhash_acquire() at ufsdirhash_acquire+0x33 ufsdirhash_add() at ufsdirhash_add+0x19 ufs_direnter() at ufs_direnter+0x909 ufs_mkdir() at ufs_mkdir+0x44d VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93 kern_mkdirat() at kern_mkdirat+0x290 syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (136, FreeBSD ELF64, mkdir), rip =3D 0x800933eec, rsp =3D 0x7fffffffd768, rbp =3D 0x800c07050 --- lock order reversal: 1st 0xfffffe000514f818 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134 2nd 0xffffff80e9bf59f8 bufwait (bufwait) @ /usr/src/sys/ufs/ffs/ffs_vnops.c:260 3rd 0xfffffe0005706278 ufs (ufs) @ /usr/src/sys/kern/vfs_subr.c:2134 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a kdb_backtrace() at kdb_backtrace+0x37 _witness_debugger() at _witness_debugger+0x2e witness_checkorder() at witness_checkorder+0x807 __lockmgr_args() at __lockmgr_args+0xdc6 ffs_lock() at ffs_lock+0x8c VOP_LOCK1_APV() at VOP_LOCK1_APV+0x9b _vn_lock() at _vn_lock+0x47 vget() at vget+0x7b vfs_hash_get() at vfs_hash_get+0xd5 ffs_vgetf() at ffs_vgetf+0x48 softdep_sync_buf() at softdep_sync_buf+0x393 ffs_syncvnode() at ffs_syncvnode+0x2b3 ffs_truncate() at ffs_truncate+0x477 ufs_direnter() at ufs_direnter+0x73b ufs_mkdir() at ufs_mkdir+0x44d VOP_MKDIR_APV() at VOP_MKDIR_APV+0x93 kern_mkdirat() at kern_mkdirat+0x290 syscallenter() at syscallenter+0x1aa syscall() at syscall+0x4c Xfast_syscall() at Xfast_syscall+0xdd --- syscall (136, FreeBSD ELF64, mkdir), rip =3D 0x800933eec, rsp =3D 0x7fffffffdbb8, rbp =3D 0x7fffffffdee6 --- Thanks, -Harry >> cpuid =3D 0 >> KDB: enter: panic >> [ thread pid 1445 tid 100126 ] >> Stopped at kbd_enter+0x2b: movq $0,0x918a52(%rip) >> db> bt >> Tracing pid 1445 tid 100126 td 0xfffffe000510d460 >> kdb_enter() at kbd_enter+0x3b >> panic() at panic+0x180 >> vn_isdisk() at vn_isdisk >> ufs_accessx() at ufs_accessx+0x188 >> vop_stdaccess() at vop_stdaccess+0x43 >> unionfs_access() at unionfs_access+0x1c4 >> vn_open_cred() at vn_open_cred+0x547 >> kern_opneat() at kern_openat+0x1f9 >> syscallenter() at syscallenter+0x1aa >> syscall() at syscall+0x4c >> Xfast_syscall() at Xfast_syscall+0xdd >> --- syscall (5, FreeBSD ELF64, open), rip =3D 0x801799f2c, rsp =3D >> 0x7fffffffb388, rbp =3D 0x8 --- --------------enigB174BC5CAB9A2000400E0C93 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk6HLrQACgkQLDqVQ9VXb8iwqgCgiA4x9m1Xr9boQofcGe20Q+LF cvgAoIoUdER+zGl0mgYUIE0wCc1nKtdd =vikY -----END PGP SIGNATURE----- --------------enigB174BC5CAB9A2000400E0C93--
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