Date: Sun, 30 Sep 2001 13:21:56 -0700 From: Doug Barton <DougB@DougBarton.net> To: freebsd-current@freebsd.org Subject: panic: blockable sleep lock (sx) allproc @ /usr/local/src/sys/kern/kern_proc.c:212 Message-ID: <3BB77EE4.4F7CAD2D@DougBarton.net>
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With -current as of last night around 7pm PDT:
IdlePTD 4390912
initial pcb at 320920
panicstr: bremfree: bp 0xc68bf184 not locked
panic messages:
---
panic: blockable sleep lock (sx) allproc @
/usr/local/src/sys/kern/kern_proc.c:212
syncing disks... panic: bremfree: bp 0xc68bf184 not locked
Uptime: 9h46m14s
#0 dumpsys () at /usr/local/src/sys/kern/kern_shutdown.c:488
#1 0xc01cf098 in boot (howto=260) at
/usr/local/src/sys/kern/kern_shutdown.c:331
#2 0xc01cf4d5 in panic (fmt=0xc02b3fcf "bremfree: bp %p not locked")
at /usr/local/src/sys/kern/kern_shutdown.c:628
#3 0xc01fd7a1 in bremfree (bp=0xc68bf184) at
/usr/local/src/sys/kern/vfs_bio.c:535
#4 0xc01fedd1 in vfs_bio_awrite (bp=0xc68bf184) at
/usr/local/src/sys/kern/vfs_bio.c:1528
#5 0xc01b2190 in spec_fsync (ap=0xcd9a0994)
at /usr/local/src/sys/fs/specfs/spec_vnops.c:404
#6 0xc01b1d49 in spec_vnoperate (ap=0xcd9a0994)
at /usr/local/src/sys/fs/specfs/spec_vnops.c:119
#7 0xc023b6f5 in ffs_sync (mp=0xc1703200, waitfor=2, cred=0xc0e3ed00,
td=0xc0359f44)
at vnode_if.h:441
#8 0xc0209f76 in sync (td=0xc0359f44, uap=0x0)
at /usr/local/src/sys/kern/vfs_syscalls.c:626
#9 0xc01ced35 in boot (howto=256) at
/usr/local/src/sys/kern/kern_shutdown.c:240
#10 0xc01cf4d5 in panic (fmt=0xc02b0f20 "blockable sleep lock (%s) %s @
%s:%d")
at /usr/local/src/sys/kern/kern_shutdown.c:628
#11 0xc01e6054 in witness_lock (lock=0xc035a9a0, flags=0,
file=0xc02ad8e0 "/usr/local/src/sys/kern/kern_proc.c", line=212)
at /usr/local/src/sys/kern/subr_witness.c:493
#12 0xc01d3625 in _sx_slock (sx=0xc035a9a0,
file=0xc02ad8e0 "/usr/local/src/sys/kern/kern_proc.c", line=212)
at /usr/local/src/sys/kern/kern_sx.c:115
#13 0xc01ca5e4 in pfind (pid=353) at
/usr/local/src/sys/kern/kern_proc.c:212
#14 0xc01e98a2 in selwakeup (sip=0xc179b804) at
/usr/local/src/sys/kern/sys_generic.c:1292
#15 0xc01f33a3 in ptcwakeup (tp=0xc179b828, flag=1)
at /usr/local/src/sys/kern/tty_pty.c:321
#16 0xc01f337a in ptsstart (tp=0xc179b828) at
/usr/local/src/sys/kern/tty_pty.c:310
#17 0xc01f0958 in ttstart (tp=0xc179b828) at
/usr/local/src/sys/kern/tty.c:1409
#18 0xc01f1da9 in tputchar (c=99, tp=0xc179b828) at
/usr/local/src/sys/kern/tty.c:2469
#19 0xc01e291f in putchar (c=99, arg=0xcd9a0be8) at
/usr/local/src/sys/kern/subr_prf.c:306
#20 0xc01e2b9e in kvprintf (
fmt=0xc02add01 "alcru: negative time of %ld usec for pid %d (%s)\n",
func=0xc01e28d0 <putchar>, arg=0xcd9a0be8, radix=10, ap=0xcd9a0c00
"Þ/Ìÿ\002\020")
at /usr/local/src/sys/kern/subr_prf.c:489
#21 0xc01e284c in printf (
fmt=0xc02add00 "calcru: negative time of %ld usec for pid %d (%s)\n")
at /usr/local/src/sys/kern/subr_prf.c:262
#22 0xc01cdeab in calcru (p=0xcd0e7300, up=0xc189ae00, sp=0xc189ae08,
ip=0x0)
at /usr/local/src/sys/kern/kern_resource.c:669
#23 0xc01c041c in exit1 (td=0xcd0e7404, rv=256) at
/usr/local/src/sys/kern/kern_exit.c:318
#24 0xc01bfdde in sys_exit (td=0xcd0e7404, uap=0xcd9a0d20)
at /usr/local/src/sys/kern/kern_exit.c:110
#25 0xc027543f in syscall (frame={tf_fs = 47, tf_es = 47, tf_ds = 47,
tf_edi = 0,
tf_esi = -1, tf_ebp = -1077937600, tf_isp = -845542028, tf_ebx =
672297256,
tf_edx = 512, tf_ecx = 672374048, tf_eax = 1, tf_trapno = 12, tf_err
= 2,
tf_eip = 671896240, tf_cs = 31, tf_eflags = 643, tf_esp =
-1077937644, tf_ss = 47})
at /usr/local/src/sys/i386/i386/trap.c:1122
#26 0xc026953d in syscall_with_err_pushed ()
--
"We will not tire, we will not falter, and we will not fail."
- George W. Bush, President of the United States
September 20, 2001
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