Date: Mon, 17 May 2004 15:46:06 -0400 From: "Robin P. Blanchard" <robin.blanchard@gactr.uga.edu> To: <current@freebsd.org> Subject: panic: lockmgr: locking against myself (was Panic on very recent -CURRENT) Message-ID: <9B5C1FCAFB35084787C21EFFFA78DD9EE394@EBE1.gc.nat>
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Updated to latest -CURRENT and am getting (what seems to be) the same =
panic.
Panics are being brought on by heavy building of various ports.
# gdb -k /usr/obj/usr/src/sys/fbsd5.vpn/kernel.debug ./vmcore.7=20
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 =
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for =
details.
This GDB was configured as "i386-undermydesk-freebsd"...
panic: lockmgr: locking against myself
panic messages:
---
panic: lockmgr: locking against myself
at line 370 in file /usr/src/sys/kern/kern_lock.c
cpuid =3D 0;=20
syncing disks, buffers remaining... kernel trap 12 with interrupts =
disabled
Fatal trap 12: page fault while in kernel mode
cpuid =3D 0; apic id =3D 00
fault virtual address =3D 0x24
fault code =3D supervisor read, page not present
instruction pointer =3D 0x8:0xc04f948e
stack pointer =3D 0x10:0xc9567c38
frame pointer =3D 0x10:0xc9567c58
code segment =3D base 0x0, limit 0xfffff, type 0x1b
=3D DPL 0, pres 1, def32 1, gran 1
processor eflags =3D resume, IOPL =3D 0
current process =3D 28 (swi8: tty:sio clock)
trap number =3D 12
panic: page fault
at line 815 in file /usr/src/sys/i386/i386/trap.ccpuid =3D 0;=20
Uptime: 29m7s
Dumping 127 MB
...snip...
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:236
236 dumping++;
(kgdb) bt full
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:236
No locals.
#1 0xc04cdca6 in boot (howto=3D260) at =
/usr/src/sys/kern/kern_shutdown.c:370
No locals.
#2 0xc04ce0dc in __panic () at /usr/src/sys/kern/kern_shutdown.c:548
td =3D (struct thread *) 0xc0ec2000
bootopt =3D 260
newpanic =3D 0
ap =3D 0xc9567b84 "=D5@f=C0\001"
buf =3D "lockmgr: locking against myself", '\0' <repeats 224 =
times>
#3 0xc061e3cc in trap_fatal (frame=3D0xc9567bf8, eva=3D0) at
/usr/src/sys/i386/i386/trap.c:815
code =3D 16
type =3D 12
ss =3D 16
esp =3D 0
softseg =3D {ssd_base =3D 0, ssd_limit =3D 1048575, ssd_type =3D =
27, ssd_dpl
=3D 0, ssd_p =3D 1, ssd_xx =3D 0,=20
ssd_xx1 =3D 0, ssd_def32 =3D 1, ssd_gran =3D 1}
#4 0xc061da23 in trap (frame=3D
{tf_fs =3D 24, tf_es =3D -1066860528, tf_ds =3D -1032060912, =
tf_edi =3D 0,
tf_esi =3D -1066762520, tf_ebp =3D -917078952, tf_isp =3D -917079004, =
tf_ebx =3D
-1030883264, tf_edx =3D -1058267136, tf_ecx =3D -1058267136, tf_eax =3D =
36,
tf_trapno =3D 12, tf_err =3D 0, tf_eip =3D -1068526450, tf_cs =3D 8, =
tf_eflags =3D
65683, tf_esp =3D -1066802016, tf_ss =3D -1058229392}) at
/usr/src/sys/i386/i386/trap.c:250
td =3D (struct thread *) 0xc0ec2000
p =3D (struct proc *) 0xc0ecb370
sticks =3D 3228165280
i =3D 0
ucode =3D 0
type =3D 12
code =3D 0
eva =3D 36
#5 0xc04f948e in propagate_priority (td=3D0xc28df840) at
/usr/src/sys/kern/subr_turnstile.c:225
tc =3D (struct turnstile_chain *) 0xc06a7ee8
ts =3D (struct turnstile *) 0x0
td1 =3D (struct thread *) 0x0
pri =3D 36
#6 0xc04f9d14 in turnstile_wait (ts=3D0xc0ec5080, lock=3D0xc069c640, =
owner=3D0x0)
at /usr/src/sys/kern/subr_turnstile.c:505
tc =3D (struct turnstile_chain *) 0xc06a7dd0
td =3D (struct thread *) 0xc0ec2000
td1 =3D (struct thread *) 0xc069c640
#7 0xc04c2ec5 in _mtx_lock_sleep (m=3D0xc069c640, opts=3D0, file=3D0x0, =
line=3D0)
at /usr/src/sys/kern/kern_mutex.c:541
ts =3D (struct turnstile *) 0x0
td =3D (struct thread *) 0xc0ec2000
v =3D 0
#8 0xc04e0482 in softclock (dummy=3D0x0) at
/usr/src/sys/kern/kern_timeout.c:246
c_func =3D (void (*)(void *)) 0xc06007f0 <scrn_timer>
c_arg =3D (void *) 0xc06cae60
c_flags =3D 7
c =3D (struct callout *) 0x0
bucket =3D (struct callout_tailq *) 0xc4d87950
curticks =3D 174662
steps =3D 7
depth =3D 1
mpcalls =3D 0
gcalls =3D 0
wakeup_cookie =3D 7
#9 0xc04b74f8 in ithread_loop (arg=3D0xc2572280) at
/usr/src/sys/kern/kern_intr.c:574
ithd =3D (struct ithd *) 0xc2572280
ih =3D (struct intrhand *) 0xc0ec4240
td =3D (struct thread *) 0xc0ec2000
p =3D (struct proc *) 0xc0ecb370
count =3D 1
warned =3D 0
#10 0xc04b6118 in fork_exit (callout=3D0xc04b72c0 <ithread_loop>, =
arg=3D0x0,
frame=3D0x0)
at /usr/src/sys/kern/kern_fork.c:816
p =3D (struct proc *) 0xc0ecb370
td =3D (struct thread *) 0x0
(kgdb)=20
---------------------------------------
Robin P. Blanchard
Systems Integration Specialist
Georgia Center for Continuing Education
fon: 706.542.2404 < > fax: 706.542.6546
---------------------------------------
=20
> -----Original Message-----
> From: Robin P. Blanchard=20
> Sent: Monday, May 17, 2004 11:40 AM
> To: current@freebsd.org
> Subject: Panic on very recent -CURRENT
>=20
> Ident of kernel at:
> http://people.gactr.uga.edu/robin/kernel_ident.txt
>=20
>=20
> # gdb -k /usr/obj/usr/src/sys/fbsd5.vpn/kernel.debug=20
> ./vmcore.5 GNU gdb 5.2.1 (FreeBSD) Copyright 2002 Free=20
> Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public=20
> License, and you are welcome to change it and/or distribute=20
> copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show=20
> warranty" for details.
> This GDB was configured as "i386-undermydesk-freebsd"...
> panic: lockmgr: locking against myself
> panic messages:
> ---
> panic: lockmgr: locking against myself
> at line 370 in file /usr/src/sys/kern/kern_lock.c cpuid =3D 0;=20
>=20
> syncing disks, buffers remaining... 1401 1401 1400 panic:=20
> bremfree: removing a buffer not on a queue at line 649 in=20
> file /usr/src/sys/kern/vfs_bio.ccpuid =3D 0;
> Uptime: 3h52m23s
> Dumping 127 MB
> 16 32 48 64 80 96 112
>=20
> #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:236
> 236 dumping++;
> (kgdb) exec-file /boot/kernel/kernel
> (kgdb) bt full
> #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:236
> No locals.
> #1 0xc04cdcc6 in boot (howto=3D260) at=20
> /usr/src/sys/kern/kern_shutdown.c:370
> No locals.
> #2 0xc04ce0fc in __panic () at /usr/src/sys/kern/kern_shutdown.c:548
> td =3D (struct thread *) 0xc27dc6e0
> bootopt =3D 260
> newpanic =3D 0
> ap =3D 0xd255d834=20
> =
"(\025=E3=C4(\025=E3=C4T=D8U=D2=BB=CEQ=C0(\025=E3=C4(\025=E3=C4(\025=E3=C4=
\""
> buf =3D "lockmgr: locking against myself", '\0'=20
> <repeats 224 times>
> #3 0xc051cfc1 in bremfreel (bp=3D0xc4e31528) at=20
> /usr/src/sys/kern/vfs_bio.c:649
> old_qindex =3D 0
> #4 0xc051cebb in bremfree (bp=3D0x0) at=20
> /usr/src/sys/kern/vfs_bio.c:631 No locals.
> #5 0xc052193e in getblk (vp=3D0xc26ea924, blkno=3D12000,=20
> size=3D2048, slpflag=3D0, slptimeo=3D0, flags=3D0)
> at /usr/src/sys/kern/vfs_bio.c:2472
> lockflags =3D 0
> bp =3D (struct buf *) 0xc4e31528
> #6 0xc05b2b59 in ffs_sbupdate (mp=3D0xc2686300, waitfor=3D2) at=20
> /usr/src/sys/ufs/ffs/ffs_vfsops.c:1482
> fs =3D (struct fs *) 0xc269d800
> bp =3D (struct buf *) 0x0
> blks =3D 1
> space =3D (void *) 0xc26cb000
> i =3D 0
> size =3D 2048
> error =3D 0
> allerror =3D 0
> #7 0xc05b24c2 in ffs_sync (mp=3D0xc263d400, waitfor=3D2,=20
> cred=3D0xc0eb9200, td=3D0xc0698ae0)
> at /usr/src/sys/ufs/ffs/ffs_vfsops.c:1207
> nvp =3D (struct vnode *) 0x0
> vp =3D (struct vnode *) 0xc26ea924
> devvp =3D (struct vnode *) 0xc26ea924
> ip =3D (struct inode *) 0x0
> ump =3D (struct ufsmount *) 0xc2686300
> fs =3D (struct fs *) 0xc269d800
> error =3D 0
> count =3D 0
> lockreq =3D 65554
> allerror =3D 0
> #8 0xc05363de in sync (td=3D0xc0698ae0, uap=3D0x0) at=20
> /usr/src/sys/kern/vfs_syscalls.c:136
> mp =3D (struct mount *) 0xc263d400
> nmp =3D (struct mount *) 0x0
> asyncflag =3D 0
> #9 0xc04cd854 in boot (howto=3D256) at=20
> /usr/src/sys/kern/kern_shutdown.c:302
> bp =3D (struct buf *) 0xc4dadd68
> iter =3D 0
> nbusy =3D 1400
> pbusy =3D 1400
> subiter =3D 50
> #10 0xc04ce0fc in __panic () at /usr/src/sys/kern/kern_shutdown.c:548
> td =3D (struct thread *) 0xc27dc6e0
> bootopt =3D 256
> newpanic =3D 0=20
> ap =3D 0xd255da1c "\""
> buf =3D "lockmgr: locking against myself", '\0'=20
> <repeats 224 times>
> #11 0xc04bfe65 in lockmgr (lkp=3D0xc0ece5c4, flags=3D2,=20
> interlkp=3D0x1000000, td=3D0xc27dc6e0)
> at /usr/src/sys/kern/kern_lock.c:439
> error =3D 0
> thr =3D (struct thread *) 0xc27dc6e0
> extflags =3D 16777216
> lockflags =3D 2
> #12 0xc05cd70a in _vm_map_lock_read (map=3D0x0, file=3D0x0,=20
> line=3D0) at machine/pcpu.h:156 No locals.
> #13 0xc05d1508 in vm_map_lookup (var_map=3D0xd255db1c, vaddr=3D0,=20
> fault_typea=3D1 '\001', out_entry=3D0xd255db20,=20
> object=3D0x0, pindex=3D0x0, out_prot=3D0x0, wired=3D0xd255daf8)=20
> at /usr/src/sys/vm/vm_map.c:2867
> entry =3D 0x0
> map =3D 0xc0ece588
> prot =3D 0 '\0'
> fault_type =3D 1 '\001'
> #14 0xc05c716f in vm_fault (map=3D0xc0ece588, vaddr=3D0,=20
> fault_type=3D1 '\001', fault_flags=3D0)
> at /usr/src/sys/vm/vm_fault.c:232
> prot =3D 192 '=C0'
> is_first_object_locked =3D -766125352
> result =3D 0
> growstack =3D 1
> wired =3D -766125288
> map_generation =3D -1033337320
> next_object =3D 0x0
> marray =3D {0x0, 0x0, 0xc0d30820, 0xc0532e4c,=20
> 0xc2688618, 0x10002, 0xc8989070, 0xc27ccf00, 0x8051000,
> 0xc0e75af8, 0xc0ece628, 0xd255db6c, 0xc06164dd, 0xc0c381c0,=20
> 0x0, 0x246}
> hardfault =3D 0
> faultcount =3D -1058216568
> fs =3D {m =3D 0xd255db34, object =3D 0xc05402b0, pindex =3D=20
> 14014576280821825536, first_m =3D 0xc0e6edd8,
> first_object =3D 0xc2688618, first_pindex =3D=20
> 14014576280821825536, map =3D 0xc0ece588, entry =3D 0xc0dde568,
> lookup_still_valid =3D 0, vp =3D 0xd255db34}
> #15 0xc061a995 in trap_pfault (frame=3D0xd255dbf4, usermode=3D0,=20
> eva=3D16) at /usr/src/sys/i386/i386/trap.c:710
> va =3D 0
> vm =3D (struct vmspace *) 0x0
> map =3D 0xc0ece588
> rv =3D -1058216568
> ftype =3D 1 '\001'
> td =3D (struct thread *) 0xc27dc6e0
> p =3D (struct proc *) 0xc27dd1b8
> #16 0xc061a65d in trap (frame=3D
> {tf_fs =3D 672530456, tf_es =3D 16, tf_ds =3D 16, tf_edi =3D=20
> -1058216568, tf_esi =3D -1032160388, tf_ebp =3D -766124984,=20
> tf_isp =3D -766125024, tf_ebx =3D 0, tf_edx =3D 0, tf_ecx =3D 0,=20
> tf_eax =3D 0, tf_trapno =3D 12, tf_err =3D 0, tf_eip =3D -1067654093,=20
> tf_cs =3D 8, tf_eflags =3D 66118, tf_esp =3D 3, tf_ss =3D 0}) at=20
> /usr/src/sys/i386/i386/trap.c:420
> td =3D (struct thread *) 0xc27dc6e0
> p =3D (struct proc *) 0xc27dd1b8
> sticks =3D 3528842444
> i =3D 0
> ucode =3D 0
> type =3D 12
> code =3D 0
> eva =3D 16
> #17 0xc05ce433 in vm_map_simplify_entry (map=3D0xc0ece588,=20
> entry=3D0xc27a7b7c) at /usr/src/sys/vm/vm_map.c:1041
> next =3D 0x0
> prev =3D 0x0
> prevsize =3D 0
> esize =3D 0
> #18 0xc05ce064 in vm_map_insert (map=3D0xc27a7b7c,=20
> object=3D0xc0ece588, offset=3D0, start=3D134553600,=20
> end=3D134557696, prot=3D7 '\a', max=3D7 '\a', cow=3D0) at=20
> /usr/src/sys/vm/vm_map.c:815
> new_entry =3D 0x0
> prev_entry =3D 0xc27a7b7c
> temp_entry =3D 0xc27a7b7c
> protoeflags =3D 0
> #19 0xc05dd536 in obreak (td=3D0x0, uap=3D0x0) at=20
> /usr/src/sys/vm/vm_unix.c:119
> vm =3D (struct vmspace *) 0xc0ece588
> new =3D 0
> old =3D 134553600
> base =3D 0
> datalim =3D -4545005548382553220
> vmemlim =3D 9223372036854775807
> rv =3D 0
> error =3D 0
> do_map_wirefuture =3D 0
> #20 0xc061b200 in syscall (frame=3D
> {tf_fs =3D 47, tf_es =3D 47, tf_ds =3D 47, tf_edi =3D=20
> 134557696, tf_esi =3D 134553600, tf_ebp =3D -1077942680, tf_isp =3D=20
> -766124684, tf_ebx =3D 672459276, tf_edx =3D 672449032, tf_ecx =3D=20
> 672449028, tf_eax =3D 17, tf_trapno =3D 12, tf_err =3D 2, tf_eip =3D=20
> 671988075, tf_cs =3D 31, tf_eflags =3D 643, tf_esp =3D -1077942708,=20
> tf_ss =3D 47})
> at /usr/src/sys/i386/i386/trap.c:1004
> params =3D 0xbfbfe650---Can't read userspace from dump,=20
> or kernel process---
>=20
> (kgdb)
>=20
>=20
> ---------------------------------------
> Robin P. Blanchard
> Systems Integration Specialist
> Georgia Center for Continuing Education
> fon: 706.542.2404 < > fax: 706.542.6546
> ---------------------------------------
>=20
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