Date: Sun, 3 Dec 2006 21:49:38 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Larry Rosenman <ler@lerctr.org> Cc: freebsd-stable@freebsd.org Subject: Re: LOR, 23/Nov/2006 sources, RELENG_6 Message-ID: <20061203194938.GF35681@deviant.kiev.zoral.com.ua> In-Reply-To: <20061203132940.X18597@thebighonker.lerctr.org> References: <20061203132940.X18597@thebighonker.lerctr.org>
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--b8GWCKCLzrXbuNet Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Dec 03, 2006 at 01:30:41PM -0600, Larry Rosenman wrote: > This may already be fixed, known, but... >=20 > Dec 3 13:14:41 thebighonker kernel: lock order reversal: > Dec 3 13:14:41 thebighonker kernel: 1st 0xffffff0093904c00 kqueue (kqueu= e)=20 > @ /usr/src/sys/kern/kern_event.c:1547 > Dec 3 13:14:41 thebighonker kernel: 2nd 0xffffff007ffb16a8 struct mount= =20 > mtx (struct mount mtx) @ /usr/src/sys/ufs/ufs/ufs_vnops.c:138 > Dec 3 13:14:41 thebighonker kernel: KDB: stack backtrace: > Dec 3 13:14:41 thebighonker kernel: witness_checkorder() at=20 > witness_checkorder+0x4da > Dec 3 13:14:41 thebighonker kernel: _mtx_lock_flags() at=20 > _mtx_lock_flags+0x5c > Dec 3 13:14:41 thebighonker kernel: ufs_itimes() at ufs_itimes+0x58 > Dec 3 13:14:41 thebighonker kernel: ufs_getattr() at ufs_getattr+0x1f > Dec 3 13:14:41 thebighonker kernel: VOP_GETATTR_APV() at=20 > VOP_GETATTR_APV+0x74 > Dec 3 13:14:41 thebighonker kernel: filt_vfsread() at filt_vfsread+0x74 > Dec 3 13:14:41 thebighonker kernel: knote() at knote+0xd5 > Dec 3 13:14:41 thebighonker kernel: VOP_WRITE_APV() at VOP_WRITE_APV+0x1= 7d > Dec 3 13:14:41 thebighonker kernel: vn_write() at=20 > Dec 3 13:14:41 thebighonker kernel: vn_write+0x1ec > Dec 3 13:14:41 thebighonker kernel:=20 > Dec 3 13:14:41 thebighonker kernel: dofilewrite() at dofilewrite+0x87 > Dec 3 13:14:41 thebighonker kernel: kern_writev() at kern_writev+0x51 > Dec 3 13:14:41 thebighonker kernel: write() at write+0x4a > Dec 3 13:14:41 thebighonker kernel: syscall() at syscall+0x4b2 > Dec 3 13:14:41 thebighonker kernel: Xfast_syscall() at Xfast_syscall+0xa8 > Dec 3 13:14:41 thebighonker kernel: --- syscall (4, FreeBSD ELF64, write= ),=20 > rip =3D 0x4363dc, rsp =3D 0x7fffffffdd08, rbp =3D 0x1e --- Please, try the patch http://people.freebsd.org/~kib/kqueue-lor.1.patch --b8GWCKCLzrXbuNet Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (FreeBSD) iD8DBQFFcypRC3+MBN1Mb4gRAti1AJ93AS7W43TtXaZPEQ9qpT+W1En6WQCfZKjs zJf4jjFZzAhA7EGvrsZepsc= =g6o4 -----END PGP SIGNATURE----- --b8GWCKCLzrXbuNet--
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