Date: Fri, 23 May 2003 15:12:11 -0300 From: "Daniel C. Sobral" <dcs@tcoip.com.br> To: CURRENT <freebsd-current@FreeBSD.ORG> Cc: Robert Watson <rwatson@FreeBSD.ORG> Subject: /dev/null panic still alive Message-ID: <3ECE647B.1030705@tcoip.com.br>
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And well. Funny. Something in my daily (or so it seems) caused the=20
panic. After which the lockmgr panic attacked. :-( Anyway, core dump for =
the /dev/null:
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you =
are
welcome to change it and/or distribute copies of it under certain=20
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for detail=
s.
This GDB was configured as "i386-undermydesk-freebsd"...
panic: No strategy on dev null responsible for buffer 0xc781c818
panic messages:
---
panic: No strategy on dev null responsible for buffer 0xc781c818
syncing disks, buffers remaining... 2230 2230 2230 2230 2229 2229 2229=20
2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229=20
2229 2229 2229
giving up on 2228 buffers
Uptime: 10h48m52s
Dumping 255 MB
ata0: resetting devices ..
done
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
---
Reading symbols from /boot/kernel/snd_cmi.ko...done.
Loaded symbols for /boot/kernel/snd_cmi.ko
Reading symbols from /boot/kernel/snd_pcm.ko...done.
Loaded symbols for /boot/kernel/snd_pcm.ko
Reading symbols from=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko=
=2Edebug...done.
Loaded symbols for=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko=
=2Edebug
Reading symbols from=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.d=
ebug...done.
Loaded symbols for=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.d=
ebug
Reading symbols from=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/acpi/acpi.ko.debug..=
=2Edone.
Loaded symbols for=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/acpi/acpi.ko.debug
Reading symbols from /boot/kernel/green_saver.ko...done.
Loaded symbols for /boot/kernel/green_saver.ko
Reading symbols from=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/linux/linux.ko.debug=
=2E..done.
Loaded symbols for=20
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/linux/linux.ko.debug=
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:238
238 dumping++;
(kgdb) bt full
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:238
No locals.
#1 0xc01e7373 in boot (howto=3D256) at /usr/src/sys/kern/kern_shutdown.c=
:370
No locals.
#2 0xc01e76bb in panic () at /usr/src/sys/kern/kern_shutdown.c:543
td =3D (struct thread *) 0xc2e0dbe0
bootopt =3D 256
newpanic =3D 1
buf =3D "No strategy on dev null responsible for buffer=20
0xc781c818\n", '\0' <repeats 197 times>
#3 0xc019fca0 in spec_xstrategy (vp=3D0xc2e9bdb0, bp=3D0xc781c818) at=20
/usr/src/sys/fs/specfs/spec_vnops.c:506
mp =3D (struct mount *) 0x0
error =3D 0
dsw =3D (struct cdevsw *) 0x0
td =3D (struct thread *) 0xc2e0dbe0
#4 0xc019feeb in spec_specstrategy (ap=3D0x0) at=20
/usr/src/sys/fs/specfs/spec_vnops.c:550
No locals.
#5 0xc019ee88 in spec_vnoperate (ap=3D0x0) at=20
/usr/src/sys/fs/specfs/spec_vnops.c:123
No locals.
#6 0xc029dcb8 in ufs_vnoperatespec (ap=3D0x0) at=20
/usr/src/sys/ufs/ufs/ufs_vnops.c:2805
No locals.
#7 0xc022baee in breadn (vp=3D0xc2e9bdb0, blkno=3D0, size=3D0, rablkno=3D=
0x0,=20
rabsize=3D0x0, cnt=3D0, cred=3D0x0, bpp=3D0x0)
at vnode_if.h:1089
bp =3D (struct buf *) 0xc781c818
rabp =3D (struct buf *) 0xc2e9bdb0
i =3D 256
rv =3D 0
readwait =3D 0
#8 0xc022b9bc in bread (vp=3D0x0, blkno=3D0, size=3D0, cred=3D0x0, bpp=3D=
0x0) at=20
/usr/src/sys/kern/vfs_bio.c:683
No locals.
#9 0xc028f765 in ffs_extread (vp=3D0xc2e9bdb0, uio=3D0xd2bc5764, ioflag=3D=
1028)
at /usr/src/sys/ufs/ffs/ffs_vnops.c:1007
ip =3D (struct inode *) 0xc37467e0
dp =3D (struct ufs2_dinode *) 0xc26e7000
fs =3D (struct fs *) 0xc26dc800
bp =3D (struct buf *) 0xc781c818
lbn =3D 0
---Type <return> to continue, or q <return> to quit---
nextlbn =3D 1
bytesinfile =3D -3261638276306846288
size =3D 2048
xfersize =3D 256
blkoffset =3D 0
error =3D 0
orig_resid =3D 256
#10 0xc028ff99 in ffs_rdextattr (p=3D0x0, vp=3D0xc2e9bdb0, td=3D0x0, extr=
a=3D0)
at /usr/src/sys/ufs/ffs/ffs_vnops.c:1303
ip =3D (struct inode *) 0x0
dp =3D (struct ufs2_dinode *) 0x0
luio =3D {uio_iov =3D 0xd2bc575c, uio_iovcnt =3D 1, uio_offset =3D=
0,=20
uio_resid =3D 256,
uio_segflg =3D UIO_SYSSPACE, uio_rw =3D UIO_READ, uio_td =3D 0xc2e0dbe=
0}
liovec =3D {iov_base =3D 0xc2fecb00, iov_len =3D 256}
easize =3D 256
error =3D 256
eae =3D (
u_char *) 0xc2fecb00=20
"=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=
=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=
=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=
=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=
=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=
=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=
=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=
=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=DE=DE=C0=AD=
=DE"...
#11 0xc0290016 in ffs_open_ea (vp=3D0x0, cred=3D0x0, td=3D0x0) at=20
/usr/src/sys/ufs/ffs/ffs_vnops.c:1326
ip =3D (struct inode *) 0xc37467e0
dp =3D (struct ufs2_dinode *) 0xc26e7000
error =3D 0
#12 0xc0290320 in ffs_getextattr (ap=3D0xd2bc57fc) at=20
/usr/src/sys/ufs/ffs/ffs_vnops.c:1495
ip =3D (struct inode *) 0xc37467e0
fs =3D (struct fs *) 0x0
eae =3D (u_char *) 0xd2bc57fc " T6=C0=B0=BD=E9=C2\002"
p =3D (u_char *) 0xc037f4f0=20
"\024\0223=C0l=E34=C0\030=F57=C0\030=F57=C0=C0V8=C0=F8\0213=C0=DC"
pe =3D (u_char *) 0xc37467e0 "=D0=EB\"=C3=B8\202g=C2"
pn =3D (u_char *) 0x0
easize =3D 3279185888
ul =3D 3223370451
error =3D -1032949760
ealen =3D 0
stand_alone =3D 1
---Type <return> to continue, or q <return> to quit---
#13 0xc024a90b in VOP_GETEXTATTR (vp=3D0x0, attrnamespace=3D0, name=3D0x0=
,=20
uio=3D0x0, size=3D0x0, cred=3D0x0, td=3D0x0)
at vnode_if.h:1543
a =3D {a_desc =3D 0xc0365420, a_vp =3D 0xc2e9bdb0, a_attrnamespa=
ce =3D=20
2, a_name =3D 0xc0471225 "mac_mls",
a_uio =3D 0xd2bc5858, a_size =3D 0x0, a_cred =3D 0x0, a_td =3D 0xc2e0d=
be0}
rc =3D 0
#14 0xc024a67f in vn_extattr_get (vp=3D0xc2e9bdb0, ioflg=3D8,=20
attrnamespace=3D0, attrname=3D0x0, buflen=3D0xd2bc58a8,
buf=3D0x0, td=3D0xc2e0dbe0) at /usr/src/sys/kern/vfs_vnops.c:1077
auio =3D {uio_iov =3D 0xd2bc5840, uio_iovcnt =3D 1, uio_offset =3D=
0,=20
uio_resid =3D 112,
uio_segflg =3D UIO_SYSSPACE, uio_rw =3D UIO_READ, uio_td =3D 0xc2e0dbe=
0}
iov =3D {iov_base =3D 0xd2bc58b0, iov_len =3D 112}
error =3D -759408464
#15 0xc046f759 in mac_mls_associate_vnode_extattr (mp=3D0xc2611e00,=20
fslabel=3D0x0, vp=3D0x0, vlabel=3D0x0)
at /usr/src/sys/security/mac_mls/mac_mls.c:894
temp =3D {mm_flags =3D 0, mm_single =3D {mme_type =3D 0, mme_lev=
el =3D 0,
mme_compartments =3D '\0' <repeats 31 times>}, mm_rangelow =3D=20
{mme_type =3D 0, mme_level =3D 0,
mme_compartments =3D '\0' <repeats 31 times>}, mm_rangehigh =3D=20
{mme_type =3D 0, mme_level =3D 0,
mme_compartments =3D '\0' <repeats 31 times>}}
source =3D (struct mac_mls *) 0xc27f7d00
dest =3D (struct mac_mls *) 0xc2c36600
buflen =3D 112
error =3D 0
#16 0xc01d1e72 in mac_associate_vnode_extattr (mp=3D0xc2611e00, vp=3D0xc2=
e9bdb0)
at /usr/src/sys/kern/kern_mac.c:1437
mpc =3D (struct mac_policy_conf *) 0xc0472a40
error =3D 0
#17 0xc028d9d2 in ffs_vget (mp=3D0xc2611e00, ino=3D452761, flags=3D2,=20
vpp=3D0xd2bc5a44)
at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1370
td =3D (struct thread *) 0xc2e0dbe0
fs =3D (struct fs *) 0xc26dc800
ip =3D (struct inode *) 0xc37467e0
ump =3D (struct ufsmount *) 0xc273b800
bp =3D (struct buf *) 0xc7815f40
vp =3D (struct vnode *) 0xc2e9bdb0
dev =3D (struct cdev *) 0x0
error =3D -1015781408
#18 0xc0296e91 in ufs_lookup (ap=3D0xd2bc5b08) at=20
/usr/src/sys/ufs/ufs/ufs_lookup.c:601
---Type <return> to continue, or q <return> to quit---
vdp =3D (struct vnode *) 0xc37076d8
dp =3D (struct inode *) 0xc355e3f0
bp =3D (struct buf *) 0xc773fc10
ep =3D (struct direct *) 0xc78b9018
entryoffsetinblock =3D 24
slotstatus =3D FOUND
slotoffset =3D -1
slotsize =3D 0
slotfreespace =3D 0
slotneeded =3D 0
numdirpasses =3D 1
endsearch =3D -1016039720
prevoff =3D 12
pdp =3D (struct vnode *) 0xc37076d8
tdp =3D (struct vnode *) 0x0
enduseful =3D 24
bmask =3D 16383
lockparent =3D 0
wantparent =3D 0
namlen =3D 0
error =3D -947154920
vpp =3D (struct vnode **) 0xd2bc5c38
cnp =3D (struct componentname *) 0xd2bc5c4c
cred =3D (struct ucred *) 0xc2fd0e80
flags =3D 49284
nameiop =3D 0
td =3D (struct thread *) 0xc2e0dbe0
#19 0xc029dc78 in ufs_vnoperate (ap=3D0x0) at=20
/usr/src/sys/ufs/ufs/ufs_vnops.c:2787
No locals.
#20 0xc0232480 in vfs_cache_lookup (ap=3D0x0) at vnode_if.h:82
dvp =3D (struct vnode *) 0xc37076d8
vp =3D (struct vnode *) 0xd2bc5b2c
lockparent =3D 0
error =3D -1033254908
vpp =3D (struct vnode **) 0xd2bc5c38
cnp =3D (struct componentname *) 0xd2bc5c4c
---Type <return> to continue, or q <return> to quit---
cred =3D (struct ucred *) 0x0
flags =3D 49284
td =3D (struct thread *) 0xc2e0dbe0
vpid =3D 3224691564
#21 0xc029dc78 in ufs_vnoperate (ap=3D0x0) at=20
/usr/src/sys/ufs/ufs/ufs_vnops.c:2787
No locals.
#22 0xc02371a9 in lookup (ndp=3D0xd2bc5c24) at vnode_if.h:52
cp =3D 0xc269c804 ""
dp =3D (struct vnode *) 0xd2bc5c4c
tdp =3D (struct vnode *) 0xc320c634
mp =3D (struct mount *) 0xc269c804
docache =3D 32
wantparent =3D 0
rdonly =3D 0
trailing_slash =3D 0
error =3D 0
dpunlocked =3D 0
cnp =3D (struct componentname *) 0xc37076d8
td =3D (struct thread *) 0xc2e0dbe0
#23 0xc0236b4e in namei (ndp=3D0xd2bc5c24) at=20
/usr/src/sys/kern/vfs_lookup.c:181
fdp =3D (struct filedesc *) 0xc37076d8
cp =3D 0xc37076d8 "l=E34=C0=A8=A22=C0=A8=A22=C0"
dp =3D (struct vnode *) 0xc37076d8
aiov =3D {iov_base =3D 0xc037f6a8, iov_len =3D 3224893056}
auio =3D {uio_iov =3D 0xd2bc5c00, uio_iovcnt =3D -1071596845,=20
uio_offset =3D -4595933861867161904,
uio_resid =3D 0, uio_segflg =3D 3223043918, uio_rw =3D 3224918848, uio=
_td =3D=20
0x1}
error =3D -1021262284
linklen =3D -1021262284
cnp =3D (struct componentname *) 0xd2bc5c4c
td =3D (struct thread *) 0xc2e0dbe0
p =3D (struct proc *) 0x0
#24 0xc02443d2 in lstat (td=3D0xc2e0dbe0, uap=3D0xd2bc5d10) at=20
/usr/src/sys/kern/vfs_syscalls.c:1719
error =3D -1025451040
vp =3D (struct vnode *) 0xc3015248
sb =3D {st_dev =3D 3224591641, st_ino =3D 3224525706, st_mode =3D=
3,=20
st_nlink =3D 0, st_uid =3D 3269516256,
st_gid =3D 3535559864, st_rdev =3D 582, st_atimespec =3D {tv_sec =3D=20
-1070375655, tv_nsec =3D 442}, st_mtimespec =3D {
---Type <return> to continue, or q <return> to quit---
tv_sec =3D -1023326720, tv_nsec =3D -1070074040}, st_ctimespec =3D=20
{tv_sec =3D -1070074240, tv_nsec =3D 582},
st_size =3D 3224691564, st_blocks =3D 4379843318344, st_blksize =3D=20
3224591641, st_flags =3D 3535559904,
st_gen =3D 3223183008, st_lspare =3D -1023323576, st_birthtimespec =3D=
=20
{tv_sec =3D 1, tv_nsec =3D -1070455386}}
nd =3D {ni_dirp =3D 0x8057ba8---Can't read userspace from dump, =
or=20
kernel process---
--=20
Daniel C. Sobral (8-DCS)
Gerencia de Operacoes
Divisao de Comunicacao de Dados
Coordenacao de Seguranca
VIVO Centro Oeste Norte
Fones: 55-61-313-7654/Cel: 55-61-9618-0904
E-mail: Daniel.Capo@tco.net.br
Daniel.Sobral@tcoip.com.br
dcs@tcoip.com.br
Outros:
dcs@newsguy.com
dcs@freebsd.org
capo@notorious.bsdconspiracy.net
As the poet said, "Only God can make a tree" -- probably because it's
so hard to figure out how to get the bark on.
-- Woody Allen
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