/dev/null panic still alive

From: Daniel C. Sobral <dcs_at_tcoip.com.br>
Date: Fri, 23 May 2003 15:12:11 -0300
And well. Funny. Something in my daily (or so it seems) caused the 
panic. After which the lockmgr panic attacked. :-( Anyway, core dump for 
the /dev/null:

GNU gdb 5.2.1 (FreeBSD)
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Type "show copying" to see the conditions.
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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 
2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 2229 
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 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_biba/mac_biba.ko.debug
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.debug...done.
Loaded symbols for 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/mac_mls/mac_mls.ko.debug
Reading symbols from 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done.
Loaded symbols for 
/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 
/usr/obj/usr/src/sys/DCS/modules/usr/src/sys/modules/linux/linux.ko.debug...done.
Loaded symbols for 
/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=256) 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 = (struct thread *) 0xc2e0dbe0
         bootopt = 256
         newpanic = 1
         buf = "No strategy on dev null responsible for buffer 
0xc781c818\n", '\0' <repeats 197 times>
#3  0xc019fca0 in spec_xstrategy (vp=0xc2e9bdb0, bp=0xc781c818) at 
/usr/src/sys/fs/specfs/spec_vnops.c:506
         mp = (struct mount *) 0x0
         error = 0
         dsw = (struct cdevsw *) 0x0
         td = (struct thread *) 0xc2e0dbe0
#4  0xc019feeb in spec_specstrategy (ap=0x0) at 
/usr/src/sys/fs/specfs/spec_vnops.c:550
No locals.
#5  0xc019ee88 in spec_vnoperate (ap=0x0) at 
/usr/src/sys/fs/specfs/spec_vnops.c:123
No locals.
#6  0xc029dcb8 in ufs_vnoperatespec (ap=0x0) at 
/usr/src/sys/ufs/ufs/ufs_vnops.c:2805
No locals.
#7  0xc022baee in breadn (vp=0xc2e9bdb0, blkno=0, size=0, rablkno=0x0, 
rabsize=0x0, cnt=0, cred=0x0, bpp=0x0)
     at vnode_if.h:1089
         bp = (struct buf *) 0xc781c818
         rabp = (struct buf *) 0xc2e9bdb0
         i = 256
         rv = 0
         readwait = 0
#8  0xc022b9bc in bread (vp=0x0, blkno=0, size=0, cred=0x0, bpp=0x0) at 
/usr/src/sys/kern/vfs_bio.c:683
No locals.
#9  0xc028f765 in ffs_extread (vp=0xc2e9bdb0, uio=0xd2bc5764, ioflag=1028)
     at /usr/src/sys/ufs/ffs/ffs_vnops.c:1007
         ip = (struct inode *) 0xc37467e0
         dp = (struct ufs2_dinode *) 0xc26e7000
         fs = (struct fs *) 0xc26dc800
         bp = (struct buf *) 0xc781c818
         lbn = 0
---Type <return> to continue, or q <return> to quit---
         nextlbn = 1
         bytesinfile = -3261638276306846288
         size = 2048
         xfersize = 256
         blkoffset = 0
         error = 0
         orig_resid = 256
#10 0xc028ff99 in ffs_rdextattr (p=0x0, vp=0xc2e9bdb0, td=0x0, extra=0)
     at /usr/src/sys/ufs/ffs/ffs_vnops.c:1303
         ip = (struct inode *) 0x0
         dp = (struct ufs2_dinode *) 0x0
         luio = {uio_iov = 0xd2bc575c, uio_iovcnt = 1, uio_offset = 0, 
uio_resid = 256,
   uio_segflg = UIO_SYSSPACE, uio_rw = UIO_READ, uio_td = 0xc2e0dbe0}
         liovec = {iov_base = 0xc2fecb00, iov_len = 256}
         easize = 256
         error = 256
         eae = (
     u_char *) 0xc2fecb00 
"ÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­ÞÞÀ­Þ"...
#11 0xc0290016 in ffs_open_ea (vp=0x0, cred=0x0, td=0x0) at 
/usr/src/sys/ufs/ffs/ffs_vnops.c:1326
         ip = (struct inode *) 0xc37467e0
         dp = (struct ufs2_dinode *) 0xc26e7000
         error = 0
#12 0xc0290320 in ffs_getextattr (ap=0xd2bc57fc) at 
/usr/src/sys/ufs/ffs/ffs_vnops.c:1495
         ip = (struct inode *) 0xc37467e0
         fs = (struct fs *) 0x0
         eae = (u_char *) 0xd2bc57fc " T6À°½éÂ\002"
         p = (u_char *) 0xc037f4f0 
"\024\0223Àlã4À\030õ7À\030õ7ÀÀV8Àø\0213ÀÜ"
         pe = (u_char *) 0xc37467e0 "Ðë\"ø\202gÂ"
         pn = (u_char *) 0x0
         easize = 3279185888
         ul = 3223370451
         error = -1032949760
         ealen = 0
         stand_alone = 1
---Type <return> to continue, or q <return> to quit---
#13 0xc024a90b in VOP_GETEXTATTR (vp=0x0, attrnamespace=0, name=0x0, 
uio=0x0, size=0x0, cred=0x0, td=0x0)
     at vnode_if.h:1543
         a = {a_desc = 0xc0365420, a_vp = 0xc2e9bdb0, a_attrnamespace = 
2, a_name = 0xc0471225 "mac_mls",
   a_uio = 0xd2bc5858, a_size = 0x0, a_cred = 0x0, a_td = 0xc2e0dbe0}
         rc = 0
#14 0xc024a67f in vn_extattr_get (vp=0xc2e9bdb0, ioflg=8, 
attrnamespace=0, attrname=0x0, buflen=0xd2bc58a8,
     buf=0x0, td=0xc2e0dbe0) at /usr/src/sys/kern/vfs_vnops.c:1077
         auio = {uio_iov = 0xd2bc5840, uio_iovcnt = 1, uio_offset = 0, 
uio_resid = 112,
   uio_segflg = UIO_SYSSPACE, uio_rw = UIO_READ, uio_td = 0xc2e0dbe0}
         iov = {iov_base = 0xd2bc58b0, iov_len = 112}
         error = -759408464
#15 0xc046f759 in mac_mls_associate_vnode_extattr (mp=0xc2611e00, 
fslabel=0x0, vp=0x0, vlabel=0x0)
     at /usr/src/sys/security/mac_mls/mac_mls.c:894
         temp = {mm_flags = 0, mm_single = {mme_type = 0, mme_level = 0,
     mme_compartments = '\0' <repeats 31 times>}, mm_rangelow = 
{mme_type = 0, mme_level = 0,
     mme_compartments = '\0' <repeats 31 times>}, mm_rangehigh = 
{mme_type = 0, mme_level = 0,
     mme_compartments = '\0' <repeats 31 times>}}
         source = (struct mac_mls *) 0xc27f7d00
         dest = (struct mac_mls *) 0xc2c36600
         buflen = 112
         error = 0
#16 0xc01d1e72 in mac_associate_vnode_extattr (mp=0xc2611e00, vp=0xc2e9bdb0)
     at /usr/src/sys/kern/kern_mac.c:1437
         mpc = (struct mac_policy_conf *) 0xc0472a40
         error = 0
#17 0xc028d9d2 in ffs_vget (mp=0xc2611e00, ino=452761, flags=2, 
vpp=0xd2bc5a44)
     at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1370
         td = (struct thread *) 0xc2e0dbe0
         fs = (struct fs *) 0xc26dc800
         ip = (struct inode *) 0xc37467e0
         ump = (struct ufsmount *) 0xc273b800
         bp = (struct buf *) 0xc7815f40
         vp = (struct vnode *) 0xc2e9bdb0
         dev = (struct cdev *) 0x0
         error = -1015781408
#18 0xc0296e91 in ufs_lookup (ap=0xd2bc5b08) at 
/usr/src/sys/ufs/ufs/ufs_lookup.c:601
---Type <return> to continue, or q <return> to quit---
         vdp = (struct vnode *) 0xc37076d8
         dp = (struct inode *) 0xc355e3f0
         bp = (struct buf *) 0xc773fc10
         ep = (struct direct *) 0xc78b9018
         entryoffsetinblock = 24
         slotstatus = FOUND
         slotoffset = -1
         slotsize = 0
         slotfreespace = 0
         slotneeded = 0
         numdirpasses = 1
         endsearch = -1016039720
         prevoff = 12
         pdp = (struct vnode *) 0xc37076d8
         tdp = (struct vnode *) 0x0
         enduseful = 24
         bmask = 16383
         lockparent = 0
         wantparent = 0
         namlen = 0
         error = -947154920
         vpp = (struct vnode **) 0xd2bc5c38
         cnp = (struct componentname *) 0xd2bc5c4c
         cred = (struct ucred *) 0xc2fd0e80
         flags = 49284
         nameiop = 0
         td = (struct thread *) 0xc2e0dbe0
#19 0xc029dc78 in ufs_vnoperate (ap=0x0) at 
/usr/src/sys/ufs/ufs/ufs_vnops.c:2787
No locals.
#20 0xc0232480 in vfs_cache_lookup (ap=0x0) at vnode_if.h:82
         dvp = (struct vnode *) 0xc37076d8
         vp = (struct vnode *) 0xd2bc5b2c
         lockparent = 0
         error = -1033254908
         vpp = (struct vnode **) 0xd2bc5c38
         cnp = (struct componentname *) 0xd2bc5c4c
---Type <return> to continue, or q <return> to quit---
         cred = (struct ucred *) 0x0
         flags = 49284
         td = (struct thread *) 0xc2e0dbe0
         vpid = 3224691564
#21 0xc029dc78 in ufs_vnoperate (ap=0x0) at 
/usr/src/sys/ufs/ufs/ufs_vnops.c:2787
No locals.
#22 0xc02371a9 in lookup (ndp=0xd2bc5c24) at vnode_if.h:52
         cp = 0xc269c804 ""
         dp = (struct vnode *) 0xd2bc5c4c
         tdp = (struct vnode *) 0xc320c634
         mp = (struct mount *) 0xc269c804
         docache = 32
         wantparent = 0
         rdonly = 0
         trailing_slash = 0
         error = 0
         dpunlocked = 0
         cnp = (struct componentname *) 0xc37076d8
         td = (struct thread *) 0xc2e0dbe0
#23 0xc0236b4e in namei (ndp=0xd2bc5c24) at 
/usr/src/sys/kern/vfs_lookup.c:181
         fdp = (struct filedesc *) 0xc37076d8
         cp = 0xc37076d8 "lã4À¨¢2À¨¢2À"
         dp = (struct vnode *) 0xc37076d8
         aiov = {iov_base = 0xc037f6a8, iov_len = 3224893056}
         auio = {uio_iov = 0xd2bc5c00, uio_iovcnt = -1071596845, 
uio_offset = -4595933861867161904,
   uio_resid = 0, uio_segflg = 3223043918, uio_rw = 3224918848, uio_td = 
0x1}
         error = -1021262284
         linklen = -1021262284
         cnp = (struct componentname *) 0xd2bc5c4c
         td = (struct thread *) 0xc2e0dbe0
         p = (struct proc *) 0x0
#24 0xc02443d2 in lstat (td=0xc2e0dbe0, uap=0xd2bc5d10) at 
/usr/src/sys/kern/vfs_syscalls.c:1719
         error = -1025451040
         vp = (struct vnode *) 0xc3015248
         sb = {st_dev = 3224591641, st_ino = 3224525706, st_mode = 3, 
st_nlink = 0, st_uid = 3269516256,
   st_gid = 3535559864, st_rdev = 582, st_atimespec = {tv_sec = 
-1070375655, tv_nsec = 442}, st_mtimespec = {
---Type <return> to continue, or q <return> to quit---
     tv_sec = -1023326720, tv_nsec = -1070074040}, st_ctimespec = 
{tv_sec = -1070074240, tv_nsec = 582},
   st_size = 3224691564, st_blocks = 4379843318344, st_blksize = 
3224591641, st_flags = 3535559904,
   st_gen = 3223183008, st_lspare = -1023323576, st_birthtimespec = 
{tv_sec = 1, tv_nsec = -1070455386}}
         nd = {ni_dirp = 0x8057ba8---Can't read userspace from dump, or 
kernel process---


-- 
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_at_tco.net.br
         Daniel.Sobral_at_tcoip.com.br
         dcs_at_tcoip.com.br

Outros:
	dcs_at_newsguy.com
	dcs_at_freebsd.org
	capo_at_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
Received on Fri May 23 2003 - 09:12:20 UTC

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