Date: Sun, 8 Dec 2002 15:30:35 +0100 From: Paolo Pisati <p.pisati@oltrelinux.com> To: FreeBSD_Current <freebsd-current@FreeBSD.ORG> Subject: Re: panic: lockmgr: locking against myself Message-ID: <20021208143035.GA722@newluxor.skynet.org> In-Reply-To: <20021208130541.GA580@newluxor.skynet.org> References: <20021208130541.GA580@newluxor.skynet.org>
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On Sun, Dec 08, 2002 at 02:05:41PM +0100, Paolo Pisati wrote:
>=20
> flag@newluxor$ uname -a
> FreeBSD newluxor.skynet.org 5.0-RC FreeBSD 5.0-RC #6: Sun Dec 8 13:45:45=
CET 2002 flag@newluxor.skynet.org:/usr/obj/usr/src/sys/NEWLUXOR i386
> flag@newluxor$
>=20
> i get a panic everytime i launch tin to read the newsgroup:
>=20
> panic: lockmgr: locking against myself
> syncing disks, buffers remaining... panic: bdwrite: buffer is not busy
and here is the dump:
Script started on Sun Dec 8 15:22:34 2002
bash-2.05b# gdb -l=08 =08k /usr/obj/usr/src/sys/NEWLUXOR/kernel.debug vmcor=
e.0 =0D
GNU gdb 5.2.1 (FreeBSD)=0D
Copyright 2002 Free Software Foundation, Inc.=0D
GDB is free software, covered by the GNU General Public License, and you ar=
e=0D
welcome to change it and/or distribute copies of it under certain condition=
s.=0D
Type "show copying" to see the conditions.=0D
There is absolutely no warranty for GDB. Type "show warranty" for details.=
=0D
This GDB was configured as "i386-undermydesk-freebsd"...=0D
panic: bdwrite: buffer is not busy=0D
panic messages:=0D
---=0D
panic: lockmgr: locking against myself=0D
=0D
syncing disks, buffers remaining... panic: bdwrite: buffer is not busy=0D
Uptime: 1m1s=0D
Dumping 191 MB=0D
ata0: resetting devices ..=0D
done=0D
16 32 48 64 80 96 112 128 144 160 176=0D
---=0D
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:232=0D
232 dumping++;=0D
(kgdb) where=0D
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:232=0D
#1 0xc0225e8c in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:3=
64=0D
#2 0xc02260b7 in panic () at /usr/src/sys/kern/kern_shutdown.c:517=0D
#3 0xc0263ee8 in bdwrite (bp=3D0xc5babff8) at /usr/src/sys/kern/vfs_bio.c:=
950=0D
#4 0xc02df9c8 in ffs_update (vp=3D0xc2001ce4, waitfor=3D0)=0D
at /usr/src/sys/ufs/ffs/ffs_inode.c:125=0D
#5 0xc02f1b95 in ffs_fsync (ap=3D0xd3a9e888)=0D
at /usr/src/sys/ufs/ffs/ffs_vnops.c:315=0D
#6 0xc02f0e1c in ffs_sync (mp=3D0xc1f27800, waitfor=3D2, cred=3D0xc0d3ae80=
, =0D
td=3D0xc03c5ae0) at vnode_if.h:612=0D
#7 0xc0276146 in sync (td=3D0xc03c5ae0, uap=3D0x0)=0D
at /usr/src/sys/kern/vfs_syscalls.c:138=0D
#8 0xc0225ad9 in boot (howto=3D256) at /usr/src/sys/kern/kern_shutdown.c:2=
73=0D
#9 0xc02260b7 in panic () at /usr/src/sys/kern/kern_shutdown.c:517=0D
#10 0xc021a647 in lockmgr (lkp=3D0xc0d539fc, flags=3D2, interlkp=3D0x0, =0D
td=3D0xc1faa1c0) at /usr/src/sys/kern/kern_lock.c:441=0D
#11 0xc030487a in _vm_map_lock_read (map=3D0xc0d539c0, file=3D0x0, line=3D0=
)=0D
at /usr/src/sys/vm/vm_map.c:386=0D
#12 0xc03072e0 in vm_map_lookup (var_map=3D0xd3a9ea24, vaddr=3D0, =0D
fault_typea=3D2 '\002', out_entry=3D0xd3a9ea28, object=3D0x0, pindex=3D=
0x0, =0D
out_prot=3D0x0, wired=3D0xd3a9ea00) at /usr/src/sys/vm/vm_map.c:2684=0D
#13 0xc0301275 in vm_fault (map=3D0xc0d539c0, vaddr=3D0, fault_type=3D2 '\0=
02', =0D
fault_flags=3D8) at /usr/src/sys/vm/vm_fault.c:214=0D
---Type <return> to continue, or q <return> to quit---=0D
#14 0xc034409c in trap_pfault (frame=3D0xd3a9eae8, usermode=3D0, eva=3D62)=
=0D
at /usr/src/sys/i386/i386/trap.c:734=0D
#15 0xc0343d16 in trap (frame=3D=0D
{tf_fs =3D 24, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D 0, tf_esi =3D 1=
3, tf_ebp =3D -743838936, tf_isp =3D -743838956, tf_ebx =3D -1037074680, tf=
_edx =3D 0, tf_ecx =3D 1, tf_eax =3D 4096, tf_trapno =3D 12, tf_err =3D 2, =
tf_eip =3D -1070557399, tf_cs =3D 8, tf_eflags =3D 66054, tf_esp =3D -74383=
8844, tf_ss =3D -1070564930})=0D
at /usr/src/sys/i386/i386/trap.c:445=0D
#16 0xc0335958 in calltrap () at {standard input}:98=0D
#17 0xc03079be in vm_uiomove (mapa=3D0xc0d539c0, srcobject=3D0x0, cp=3D5324=
8, =0D
cnta=3D4096, uaddra=3D135434240, npages=3D0x0) at /usr/src/sys/vm/vm_ma=
p.c:3030=0D
#18 0xc022aa4b in userspaceco (=0D
cp=3D0xcb527000 "1 y\r\nsaar.org.handshake.aktuell 1 1 y\r\nsaar.org.ha=
ndshake.diskussion 1 1 y\r\nsaar.org.handshake.gastinfo 1 1 y\r\nsaar.org.h=
andshake.hilfe 1 1 y\r\nsaar.org.handshake.offizielles 1 1 y\r\nsaar.org.ip=
.general"..., =0D
cnt=3D4096, uio=3D0x0, obj=3D0x0, disposable=3D0)=0D
at /usr/src/sys/kern/kern_subr.c:266=0D
#19 0xc022aaf6 in uiomoveco (=0D
cp=3D0xcb527000 "1 y\r\nsaar.org.handshake.aktuell 1 1 y\r\nsaar.org.ha=
ndshake.diskussion 1 1 y\r\nsaar.org.handshake.gastinfo 1 1 y\r\nsaar.org.h=
andshake.hilfe 1 1 y\r\nsaar.org.handshake.offizielles 1 1 y\r\nsaar.org.ip=
.general"..., =0D
n=3D4096, uio=3D0xd3a9ec88, obj=3D0x0, disposable=3D0)=0D
at /usr/src/sys/kern/kern_subr.c:334=0D
---Type <return> to continue, or q <return> to quit---=0D
#20 0xc025b913 in soreceive (so=3D0xc2302900, psa=3D0x0, uio=3D0xd3a9ec88, =
mp0=3D0x0, =0D
controlp=3D0x0, flagsp=3D0x0) at /usr/src/sys/kern/uipc_socket.c:993=0D
#21 0xc024c48f in soo_read (fp=3D0x0, uio=3D0xd3a9ec88, active_cred=3D0xc22=
f9d80, =0D
flags=3D0, td=3D0xc1faa1c0) at /usr/src/sys/kern/sys_socket.c:81=0D
#22 0xc02466a4 in dofileread (td=3D0xc1faa1c0, fp=3D0xc1fe91a4, fd=3D3, =0D
buf=3D0x8129000, nbyte=3D0, offset=3D0, flags=3D0) at file.h:203=0D
#23 0xc024659d in read (td=3D0xc1faa1c0, uap=3D0xd3a9ed14)=0D
at /usr/src/sys/kern/sys_generic.c:107=0D
#24 0xc034469c in syscall (frame=3D=0D
{tf_fs =3D 47, tf_es =3D 47, tf_ds =3D 47, tf_edi =3D 499, tf_esi =3D=
674022528, tf_ebp =3D -1077938616, tf_isp =3D -743838348, tf_ebx =3D 67394=
4348, tf_edx =3D -63356, tf_ecx =3D 0, tf_eax =3D 3, tf_trapno =3D 12, tf_e=
rr =3D 2, tf_eip =3D 673507427, tf_cs =3D 31, tf_eflags =3D 514, tf_esp =3D=
-1077938644, tf_ss =3D 47})=0D
at /usr/src/sys/i386/i386/trap.c:1033=0D
#25 0xc03359ad in Xint0x80_syscall () at {standard input}:140=0D
---Can't read userspace from dump, or kernel process---=0D
=0D
(kgdb) quit=0D
bash-2.05b# xem=07acs/=08 =08 /=08 =08=08 =08=08 =08=08 =08=08 =08=08 =08=
=08 =08=08 =08=07=07=07=07exit=0D
exit=0D
Script done on Sun Dec 8 15:24:36 2002
hope it helps u...
--=20
Paolo
Italian FreeBSD User Group: http://www.gufi.org
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