Date: Fri, 15 Jul 2005 15:43:32 +0200 From: Marc Olzheim <marcolz@stack.nl> To: FreeBSD-gnats-submit@FreeBSD.org, freebsd-bugs@FreeBSD.org Cc: Marc Olzheim <marcolz@stack.nl> Subject: Re: kern/83375: Fatal trap 12 cloning a pty Message-ID: <20050715134332.GA37237@stack.nl> In-Reply-To: <20050715100439.GB35516@stack.nl> References: <200507130926.j6D9QB6T001062@synth.ilse.net> <200507130930.j6D9UDHL028973@freefall.freebsd.org> <20050713200405.GA66432@stack.nl> <20050714125552.GA26456@stack.nl> <20050715100439.GB35516@stack.nl>
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Today's non-SMP 7-CURRENT backtrace from kgdb:
#25 0xc0500612 in dev_ref (dev=0x0) at /usr/src/sys/kern/kern_conf.c:75
#26 0xc057063a in ctty_clone (arg=0x0, name=0x0, namelen=3, dev=0xd073d86c)
at /usr/src/sys/kern/tty_tty.c:68
#27 0xc04cafcb in devfs_lookupx (ap=0x0)
at /usr/src/sys/fs/devfs/devfs_vnops.c:708
#28 0xc04cb224 in devfs_lookup (ap=0xd073d998)
at /usr/src/sys/fs/devfs/devfs_vnops.c:764
#29 0xc0713bf4 in VOP_LOOKUP_APV (vop=0xc076e5c0, a=0xd073d998)
at vnode_if.c:99
#30 0xc058f438 in lookup (ndp=0xd073dbc4) at vnode_if.h:56
#31 0xc058ece8 in namei (ndp=0xd073dbc4) at /usr/src/sys/kern/vfs_lookup.c:201
#32 0xc05a39f8 in vn_open_cred (ndp=0xd073dbc4, flagp=0xd073dcc4, cmode=0,
cred=0xc1d35000, fdidx=3) at /usr/src/sys/kern/vfs_vnops.c:182
#33 0xc05a3723 in vn_open (ndp=0x0, flagp=0x0, cmode=0, fdidx=0)
at /usr/src/sys/kern/vfs_vnops.c:91
#34 0xc059b8e8 in kern_open (td=0xc1d12900, path=0x0, pathseg=UIO_USERSPACE,
flags=32771, mode=0) at /usr/src/sys/kern/vfs_syscalls.c:979
#35 0xc059b7d6 in open (td=0x0, uap=0xd073dd04)
at /usr/src/sys/kern/vfs_syscalls.c:945
#36 0xc06fe900 in syscall (frame=
{tf_fs = 59, tf_es = 59, tf_ds = 59, tf_edi = 672136768, tf_esi = 673366572, tf_ebp = -1077942024, tf_isp = -797713052, tf_ebx = 672114944, tf_edx = -1, tf_ecx = 6, tf_eax = 5, tf_trapno = 12, tf_err = 2, tf_eip = 672798543, tf_cs = 51, tf_eflags = 582, tf_esp = -1077942068, tf_ss = 59})
at /usr/src/sys/i386/i386/trap.c:985
#37 0xc06ee3df in Xint0x80_syscall () at /usr/src/sys/i386/i386/exception.s:198
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