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Date:      Fri, 8 Apr 2005 16:39:26 +0200
From:      Rene Ladan <r.c.ladan@student.tue.nl>
To:        stable@freebsd.org
Subject:   5.4-STABLE panic
Message-ID:  <20050408143925.GA67188@82-168-79-254-bbxl.xdsl.tiscali.nl>

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Hi,

has anyone seen this panic yet?  It appears to be LOR-related :

[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]

#0  doadump () at pcpu.h:159
159	pcpu.h: No such file or directory.
	in pcpu.h
(kgdb) bt f
#0  doadump () at pcpu.h:159
No locals.
#1  0xc04944ea in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
	first_buf_printf = 1
#2  0xc0494858 in panic (
    fmt=0xc05fc48f "blockable sleep lock (%s) %s @ %s:%d")
    at /usr/src/sys/kern/kern_shutdown.c:566
	td = (struct thread *) 0xc13df000
	bootopt = 256
	newpanic = 1
	ap = 0xc9ba6670 "ìŠ`ÀøÁ_À\236a_À­\005"
	buf = "blockable sleep lock (sleep mutex) tty @ /usr/src/sys/kern/kern_event.c:1453", '\0' <repeats 179 times>
#3  0xc04bb0ae in witness_checkorder (lock=0xc1580110, flags=9, 
    file=0xc05f619e "/usr/src/sys/kern/kern_event.c", line=1453)
    at /usr/src/sys/kern/subr_witness.c:709
	lock_list = (struct lock_list_entry **) 0xf00
	lle = (struct lock_list_entry *) 0x20
	lock1 = (struct lock_instance *) 0xc13df000
	lock2 = (struct lock_instance *) 0x0
	class = (struct lock_class *) 0xc062045c
	w = (struct witness *) 0xc0648808
	w1 = (struct witness *) 0xc0686b28
	td = (struct thread *) 0xc13df000
---Type <return> to continue, or q <return> to quit---
	i = -1067755093
	j = -910530880
	__func__ = "witness_checkorder"
#4  0xc048a5fa in _mtx_lock_flags (m=0xc1580110, opts=0, 
    file=0xc05f619e "/usr/src/sys/kern/kern_event.c", line=1453)
    at /usr/src/sys/kern/kern_mutex.c:271
No locals.
#5  0xc0476d25 in knote (list=0xc1580098, hint=0, islocked=0)
    at /usr/src/sys/kern/kern_event.c:1453
	kq = (struct kqueue *) 0xc1580038
	kn = (struct knote *) 0xc1580000
#6  0xc04c934e in ttwwakeup (tp=0xc1580000) at /usr/src/sys/kern/tty.c:2394
No locals.
#7  0xc05ba441 in scstart (tp=0xc1580000)
    at /usr/src/sys/dev/syscons/syscons.c:1369
	rbp = (struct clist *) 0xc1580038
	len = 0
	buf = "\fziÁ\200\a\000\000\000p\000\000\000ziÁlgºÉb`[À\fziÁ\200\a\000\000 \000\000\000\000p\000\000BK\000 \\gºÉ:z[ÀÀ\235hÀ\fziÁ\000ziÁ\000\a\000\000\224gºÉ\225a[À\000ziÁ\200\a\000\000 \000\000\000\000\a\000\000\000\000\000\000\000ziÁ\000ziÁÀ\235hÀŽgºÉ\016Â[À\000ziÁ\200\a\000\000\000\000\000"
	scp = (scr_stat *) 0xc1697a00
#8  0xc05bd825 in scgetc (sc=0xc0689dc0, flags=3)
    at /usr/src/sys/dev/syscons/syscons.c:3211
---Type <return> to continue, or q <return> to quit---
	scp = (scr_stat *) 0xc1697a00
	tp = (struct tty *) 0x0
	c = 6
	this_scr = -910530592
	f = 0
	i = 0
#9  0xc05ba899 in sccngetch (flags=2)
    at /usr/src/sys/dev/syscons/syscons.c:1555
	fkey = {str = "\033[A", '\0' <repeats 12 times>, len = 3 '\003'}
	fkeycp = 3
	scp = (scr_stat *) 0xc1697a00
	p = (u_char *) 0x0
	cur_mode = 1
	c = -1067204928
#10 0xc05ba6e2 in sccncheckc (cd=0xc0634480)
    at /usr/src/sys/dev/syscons/syscons.c:1478
No locals.
#11 0xc04cbc98 in cncheckc () at /usr/src/sys/kern/tty_cons.c:567
	cnd = (struct cn_device *) 0xc066c480
	cn = (struct consdev *) 0x0
	c = 0
#12 0xc04cbc45 in cngetc () at /usr/src/sys/kern/tty_cons.c:548
	c = 0
#13 0xc042a535 in db_readline (lstart=0xc063bec0 "c\n", lsize=120)
---Type <return> to continue, or q <return> to quit---
    at /usr/src/sys/ddb/db_input.c:324
No locals.
#14 0xc042a67a in db_read_line () at /usr/src/sys/ddb/db_lex.c:55
	i = 0
#15 0xc0428d91 in db_command_loop () at /usr/src/sys/ddb/db_command.c:453
No locals.
#16 0xc042aef5 in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_main.c:221
	jb = {{_jb = {-910530388, -910530416, -910530336, -1052905472, 0, 
      -1069371754, 0, 0, 0, 0, -910530336, -1068824416}}}
	prev_jb = (void *) 0x0
	bkpt = 0
#17 0xc04b0927 in kdb_trap (type=0, code=0, tf=0xc9ba6940)
    at /usr/src/sys/kern/subr_kdb.c:418
	handled = -910530240
#18 0xc05d8948 in trap (frame=
      {tf_fs = -1051983848, tf_es = 16, tf_ds = -910557168, tf_edi = 9, tf_esi = -1051954588, tf_ebp = -910530168, tf_isp = -910530196, tf_ebx = -1067007556, tf_edx = 1, tf_ecx = -1056878592, tf_eax = 31, tf_trapno = 3, tf_err = 0, tf_eip = -1068825056, tf_cs = 8, tf_eflags = 646, tf_esp = -1067470996, tf_ss = -1067540423}) at /usr/src/sys/i386/i386/trap.c:576
	td = (struct thread *) 0xc13df000
	p = (struct proc *) 0xc13e61c4
	sticks = 0
	i = 0
---Type <return> to continue, or q <return> to quit---
	ucode = 0
	type = 3
	code = 0
	eva = 0
#19 0xc05c7d2a in calltrap () at /usr/src/sys/i386/i386/exception.s:140
No locals.
#20 0xc14c0018 in ?? ()
No symbol table info available.
#21 0x00000010 in ?? ()
No symbol table info available.
#22 0xc9ba0010 in ?? ()
No symbol table info available.
#23 0x00000009 in ?? ()
No symbol table info available.
#24 0xc14c7264 in ?? ()
No symbol table info available.
#25 0xc9ba6988 in ?? ()
No symbol table info available.
#26 0xc9ba696c in ?? ()
No symbol table info available.
#27 0xc066c1bc in w_locklistdata ()
No symbol table info available.
#28 0x00000001 in ?? ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#29 0xc1015000 in ?? ()
No symbol table info available.
#30 0x0000001f in ?? ()
No symbol table info available.
#31 0x00000003 in ?? ()
No symbol table info available.
#32 0x00000000 in ?? ()
No symbol table info available.
#33 0xc04b0620 in kdb_enter (msg=0x0) at cpufunc.h:56
No locals.
#34 0xc04bb6ab in witness_checkorder (lock=0xc14c7264, flags=9, 
    file=0xc06fd7ad "/usr/src/sys/modules/fxp/../../dev/fxp/if_fxp.c", 
    line=1233) at /usr/src/sys/kern/subr_witness.c:946
	lock_list = (struct lock_list_entry **) 0xc13df070
	lle = (struct lock_list_entry *) 0xc066c1b8
	lock1 = (struct lock_instance *) 0xc066c1bc
	lock2 = (struct lock_instance *) 0x0
	class = (struct lock_class *) 0xc062045c
	w = (struct witness *) 0xc06488d0
	w1 = (struct witness *) 0xc0649ac8
	td = (struct thread *) 0xc066c1bc
	i = -1
	j = 0
	__func__ = "witness_checkorder"
---Type <return> to continue, or q <return> to quit---
#35 0xc048a5fa in _mtx_lock_flags (m=0xc14c7264, opts=0, 
    file=0xc06fd7ad "/usr/src/sys/modules/fxp/../../dev/fxp/if_fxp.c", 
    line=1233) at /usr/src/sys/kern/kern_mutex.c:271
No locals.
#36 0xc06fadb7 in ?? ()
No symbol table info available.
#37 0xc14c7264 in ?? ()
No symbol table info available.
#38 0x00000000 in ?? ()
No symbol table info available.
#39 0xc06fd7ad in ?? ()
No symbol table info available.
#40 0x000004d1 in ?? ()
No symbol table info available.
#41 0xc14c7000 in ?? ()
No symbol table info available.
#42 0xc14c7000 in ?? ()
No symbol table info available.
#43 0xc9ba6a38 in ?? ()
No symbol table info available.
#44 0xc050aa39 in if_start (ifp=0xc14c7264) at /usr/src/sys/net/if.c:1953
No locals.
Previous frame identical to this frame (corrupt stack?)
(kgdb) q

System:

FreeBSD 5.4-STABLE #1: Sun Apr  3 22:31:40 CEST 2005     root@82-168-75-155-bbxl.xdsl.tiscali.nl:/usr/obj/usr/src/sys/RENE

World/kernel is built with -O2 -pipe, hence the partial stack backtrace.

Config:
--------------------------
ident	RENE
makeoptions	DEBUG=-g

machine	i386
cpu	I686_CPU
options	CPU_FASTER_5X86_FPU
options	CLK_USE_I8254_CALIBRATION

device	apic

options SCHED_4BSD

options	KDB
options	KDB_TRACE
options	DDB
options	DDB_NUMSYM
options	WITNESS
options	WITNESS_SKIPSPIN
options	WITNESS_KDB
options	INVARIANTS
options	INVARIANT_SUPPORT

options	PREEMPTION
options	ADAPTIVE_GIANT

options	INET
options	INET6

options	FFS
options	SOFTUPDATES
options	UFS_ACL
options	UFS_DIRHASH

options	COMPAT_FREEBSD4
options	COMPAT_43

options	KTRACE

options	PQ_CACHESIZE=32

options	_KPOSIX_PRIORITY_SCHEDULING

device	isa
device	pci

device	ata
device	atadisk
device	atapicd

device	atkbdc
device	atkbd
options	KBD_INSTALL_CDEV

device	psm
device	sc
options	SC_TWOBUTTON_MOUSE

device	vga
options	FB_INSTALL_CDEV

device	npx

options	DEVICE_POLLING
options	HZ=1000

device	loop
device	ether
device	pty
device	bpf

device	splash

device	pmtimer
-------------------

Regards,
Rene
-- 
"It won't fit on the line."
		-- me, 2001



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