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Date:      Sat, 10 Apr 2004 16:34:30 -0000
From:      Xin LI <delphij@frontfree.net>
To:        Lukas Ertl <le@FreeBSD.org>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: How to produce effective backtraces from crashdump?
Message-ID:  <20040410163423.GA2092@frontfree.net>
In-Reply-To: <20040409184936.S8718@leelou.in.tern>
References:  <20040409061800.GA2000@frontfree.net> <20040409184936.S8718@leelou.in.tern>

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On Fri, Apr 09, 2004 at 06:51:53PM +0200, Lukas Ertl wrote:
> I'm seeing similar problems here.  Could you please try the following:
>=20
> Open /usr/src/gnu/usr.bin/binutils/libbfd/i386/bfd.h and change line 59
> from:
>=20
> #define BFD_ARCH_SIZE 64
>=20
> to:
>=20
> #define BFD_ARCH_SIZE 32
>=20

Thanks, I finally got the backtrace (as attached). I'll do some
investigate on this issue.

Best Regards,
--=20
Xin LI <delphij frontfree net>	http://www.delphij.net/
See complete headers for GPG key and other information.


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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 condition=
s.
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: vm_page_free: freeing wired page

panic messages:
---
panic: vm_page_free: freeing wired page

at line 1058 in file /usr/src/sys/vm/vm_page.c
cpuid =3D 0;=20
Stack backtrace:
backtrace(c0675cae,0,422,c0685595,100) at backtrace+0x17
__panic(c0685595,422,c0685826,3f9,124) at __panic+0x150
vm_page_free_toq(c16651e8,40,c16651e8,eae0b910,c05fb453) at vm_page_free_to=
q+0x126
vm_page_free(c16651e8,0,c0685072,5ef,0) at vm_page_free+0x24
vm_object_backing_scan(c6388e70,4,c0685072,63c,1e8) at vm_object_backing_sc=
an+0x449
vm_object_collapse(c6388e70,0,c0685072,20d,c611db7c) at vm_object_collapse+=
0xc8
vm_object_deallocate(c627c528,0,c06847fa,825,eae0b9a0) at vm_object_dealloc=
ate+0x2eb
vm_map_entry_delete(c61ea938,c611db7c,c06847fa,882,c05f351c) at vm_map_entr=
y_delete+0x17e
vm_map_delete(c61ea938,0,bfc00000,c61ea938,c61ea938) at vm_map_delete+0x216
vm_map_remove(c61ea938,0,bfc00000,363,bfbfecfc) at vm_map_remove+0x55
exec_new_vmspace(eae0bb8c,c06b34c0,c066b260,296,eae0bb8c) at exec_new_vmspa=
ce+0x230
exec_elf32_imgact(eae0bb8c,0,c066c0ce,145,c0704c20) at exec_elf32_imgact+0x=
1bc
kern_execve(c61f47e0,804a419,bfbfebf0,bfbfec9c,0) at kern_execve+0x3af
execve(c61f47e0,eae0bd14,c,2814d000,3) at execve+0x30
syscall(2f,2f,2f,bfbfec14,bfbfee5f) at syscall+0x271
Xint0x80_syscall() at Xint0x80_syscall+0x1d
--- syscall (59), eip =3D 0x280d4083, esp =3D 0xbfbfe6fc, ebp =3D 0xbfbfeba=
8 ---

syncing disks, buffers remaining... panic: _mtx_lock_sleep: recursed on non=
-recursive mutex vm page queue mutex @ /usr/src/sys/kern/vfs_bio.c:3394

at line 437 in file /usr/src/sys/kern/kern_mutex.ccpuid =3D 0;=20
Uptime: 4m19s
Dumping 1007 MB
 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 320 =
336 352 368 384 400 416 432 448 464 480 496 512 528 544 560 576 592 608 624=
 640 656 672 688 704 720 736 752 768 784 800 816 832 848 864 880 896 912 92=
8 944 960 976 992
---
#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  0xc04f7a1a in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:3=
70
No locals.
#2  0xc04f7d96 in poweroff_wait (junk=3D0xc066dc1a, howto=3D437) at /usr/sr=
c/sys/kern/kern_shutdown.c:548
	td =3D (struct thread *) 0xc61f47e0
	bootopt =3D 260
	newpanic =3D 0
	ap =3D 0xeae0b654 "=AFUh=C0=CERg=C0B\r"
	buf =3D "vm_page_free: freeing wired page\n", '\0' <repeats 222 times>
#3  0xc04ee577 in _mtx_lock_sleep (m=3D0xeae0b654, opts=3D0, file=3D0x0, li=
ne=3D0)
    at /usr/src/sys/kern/kern_mutex.c:483
	ts =3D (struct turnstile *) 0x0
	td =3D (struct thread *) 0xc066dd08
	v =3D 0
#4  0xc04ee0d2 in _mtx_lock_flags (m=3D0xc0704c20, opts=3D0, file=3D0xc0675=
2ce "/usr/src/sys/kern/vfs_bio.c",=20
    line=3D3394) at /usr/src/sys/kern/kern_mutex.c:252
No locals.
#5  0xc05461fd in vfs_busy_pages (bp=3D0xd2546730, clear_modify=3D1) at /us=
r/src/sys/kern/vfs_bio.c:3394
	obj =3D 0xc0c408c4
	foff =3D -1522016800224556000
	i =3D -1066970418
	bogus =3D 0
#6  0xc05414f8 in ibwrite (bp=3D0xd2546730) at /usr/src/sys/kern/vfs_bio.c:=
875
	oldflags =3D 537002148
	newbp =3D (struct buf *) 0xc5f2d000
#7  0xc054116d in bwrite (bp=3D0x0) at /usr/src/sys/kern/vfs_bio.c:771
No locals.
#8  0xc05433d3 in vfs_bio_awrite (bp=3D0xd2546730) at /usr/src/sys/kern/vfs=
_bio.c:1725
	i =3D 0
	j =3D -971028512
	lblkno =3D 65664
	vp =3D (struct vnode *) 0xc5f2d000
	ncl =3D 16384
	nwritten =3D 16384
	size =3D 1
	maxcl =3D -973942784
#9  0xc054b180 in vop_stdfsync (ap=3D0xeae0b7e8) at /usr/src/sys/kern/vfs_d=
efault.c:574
	vp =3D (struct vnode *) 0xd2546730
	bp =3D (struct buf *) 0x4000
	nbp =3D (struct buf *) 0xc5f2d000
	error =3D 0
	maxretry =3D 100
#10 0xc04c3bbe in spec_fsync (ap=3D0xeae0b7e8) at /usr/src/sys/fs/specfs/sp=
ec_vnops.c:437
No locals.
#11 0xc04c2e08 in spec_vnoperate (ap=3D0x0) at /usr/src/sys/fs/specfs/spec_=
vnops.c:118
No locals.
#12 0xc05dbfd2 in ffs_sync (mp=3D0xc5ddc400, waitfor=3D2, cred=3D0xc1e26200=
, td=3D0xc06bf9c0) at vnode_if.h:627
	nvp =3D (struct vnode *) 0x0
	vp =3D (struct vnode *) 0xeae0b7e8
	devvp =3D (struct vnode *) 0xeae0b7e8
	ip =3D (struct inode *) 0x0
	ump =3D (struct ufsmount *) 0xc5f03800
	fs =3D (struct fs *) 0xc5dc0800
	error =3D -1066665536
	count =3D 0
	lockreq =3D 65554
	allerror =3D 0
#13 0xc05561d5 in sync (td=3D0xc06bf9c0, uap=3D0x0) at /usr/src/sys/kern/vf=
s_syscalls.c:136
	mp =3D (struct mount *) 0xc5ddc400
	nmp =3D (struct mount *) 0x0
	asyncflag =3D 0
#14 0xc04f7542 in boot (howto=3D256) at /usr/src/sys/kern/kern_shutdown.c:2=
77
	bp =3D (struct buf *) 0x0
	iter =3D -1042113268
	nbusy =3D -1042113280
	pbusy =3D -1066650464
	subiter =3D 0
#15 0xc04f7d96 in poweroff_wait (junk=3D0xc0685595, howto=3D1058) at /usr/s=
rc/sys/kern/kern_shutdown.c:548
	td =3D (struct thread *) 0xc61f47e0
	bootopt =3D 256
	newpanic =3D 1
	ap =3D 0xeae0b8b0 "=F9\003"
	buf =3D "vm_page_free: freeing wired page\n", '\0' <repeats 222 times>
#16 0xc05fd547 in vm_page_free_toq (m=3D0xeae0b8b0) at /usr/src/sys/vm/vm_p=
age.c:1058
	pq =3D (struct vpgqueues *) 0x1
	object =3D 0x1
#17 0xc05fc825 in vm_page_free (m=3D0xc16651e8) at /usr/src/sys/vm/vm_page.=
c:390
No locals.
#18 0xc05fb453 in vm_object_backing_scan (object=3D0xc6388e70, op=3D4) at /=
usr/src/sys/vm/vm_object.c:1521
	pp =3D 0x0
	r =3D 1
	p =3D 0xc16651e8
	backing_object =3D 0xc627c528
	backing_offset_index =3D 0
#19 0xc05fb618 in vm_object_collapse (object=3D0xc6388e70) at /usr/src/sys/=
vm/vm_object.c:1632
	backing_object =3D 0xc627c528
#20 0xc05f996b in vm_object_deallocate (object=3D0xc6388e70) at /usr/src/sy=
s/vm/vm_object.c:532
	robject =3D 0xc6388e70
	temp =3D 0xc6388e70
#21 0xc05f5c5f in vm_map_entry_delete (map=3D0xc61ea938, entry=3D0xc611db7c=
) at /usr/src/sys/vm/vm_map.c:2086
	object =3D 0xc627c528
	offidxstart =3D 0
	offidxend =3D 250
	count =3D 250
#22 0xc05f5e8e in vm_map_delete (map=3D0xc61ea938, start=3D3323059068, end=
=3D3217031168)
    at /usr/src/sys/vm/vm_map.c:2186
	next =3D 0xc611db7c
	entry =3D 0xc627c528
	first_entry =3D 0xc61ea938
#23 0xc05f5f02 in vm_map_remove (map=3D0xc61ea938, start=3D0, end=3D3217031=
168) at /usr/src/sys/vm/vm_map.c:2208
	result =3D 0
#24 0xc04dfb64 in exec_new_vmspace (imgp=3D0xeae0bb8c, sv=3D0xc06b34c0) at =
/usr/src/sys/vm/vm_map.h:197
	error =3D 0
	p =3D (struct proc *) 0xc6382528
	vmspace =3D (struct vmspace *) 0xc61ea938
	stack_addr =3D 0
	map =3D 0x0
#25 0xc04d07b0 in exec_elf32_imgact (imgp=3D0xeae0bb8c) at /usr/src/sys/ker=
n/imgact_elf.c:717
	hdr =3D (const Elf_Ehdr *) 0xdb6f2000
	phdr =3D (const Elf_Phdr *) 0xdb6f2034
	elf_auxargs =3D (Elf_Auxargs *) 0x0
	vmspace =3D (struct vmspace *) 0xc5fea000
	prot =3D 0 '\0'
	text_size =3D 0
	data_size =3D 0
	total_size =3D 0
	text_addr =3D 0
	data_addr =3D 0
	seg_size =3D 0
	seg_addr =3D 801
	addr =3D 3940596412
	entry =3D 0
	proghdr =3D 0
	error =3D 0
	i =3D 6
	interp =3D 0xdb6f20f4 "/libexec/ld-elf.so.1"
	brand_info =3D (Elf_Brandinfo *) 0xc06b3528
	td =3D (struct thread *) 0xc61f47e0
	sv =3D (struct sysentvec *) 0xc06b34c0
#26 0xc04deb21 in kern_execve (td=3D0xc61f47e0, fname=3D) at /usr/src/sys/k=
ern/kern_exec.c:381
	p =3D (struct proc *) 0xc6382528
	nd =3D {ni_dirp =3D 0x804a419(kgdb)=20
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