Date: Tue, 27 Aug 2002 16:07:22 +0700 (OMSST) From: "Evgueni V.Gavrilov" <admin@rshb.com.ru> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/42064: Repeatable system panics with message "softdep_lock: locking against myself" Message-ID: <20020827090722.AB1015362@vampiro.rootshell.ru>
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>Number: 42064
>Category: kern
>Synopsis: Repeatable system panics with message "softdep_lock: locking against myself"
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Aug 27 02:10:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Evgueni V. Gavrilov <admin@rshb.com.ru>
>Release: FreeBSD 4.6-STABLE i386
>Organization:
>Environment:
System: FreeBSD rshb.com.ru 4.6-STABLE FreeBSD 4.6-STABLE #0: Mon Aug 26 21:40:29 OMSST 2002 vampiro@vampiro.rsb.local:/usr/src/sys/compile/MONSTER i386
machine i386
cpu I686_CPU
ident MONSTER
maxusers 128
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options NFS
options SOFTUPDATES #Enable FFS soft updates support
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options _KPOSIX_VERSION=199309L
options KTRACE
options PERFMON
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options SHMSEG=256 # max shared mem id's per process
options SHMMNI=128 # max shared mem id's per system
options SHMMAX=33554432 # max shared memory segment size (bytes)
options SHMALL=8192 # max amount of shared memory (pages)
options MSGMNB=8192 # max # of bytes in a queue
options MSGMNI=256 # number of message queue identifiers
options MSGSEG=256 # number of message segments per queue
options MSGSSZ=64 # size of a message segment
options MSGTQL=8192 # max messages in system
options SEMMNI=256
options SEMMNS=512
options SEMMNU=256
options SEMMAP=256
options INCLUDE_CONFIG_FILE
options IPFILTER
options IPFILTER_LOG
options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_DEFAULT_TO_ACCEPT
options IPFW2
options HZ=1000
options RANDOM_IP_ID
options ICMP_BANDLIM
options ACCEPT_FILTER_HTTP
options VESA
options PANIC_REBOOT_WAIT_TIME=20
options SMBFS
options LIBMCHAIN
options LIBICONV
options NETSMB #SMB/CIFS requester
options NETSMBCRYPTO #encrypted password support for SMB
options UFS_DIRHASH
options SHOW_BUSYBUFS
device isa
device pci
device fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0
device fd1 at fdc0 drive 1
device ata0 at isa? port IO_WD1 irq 14
device ata1 at isa? port IO_WD2 irq 15
device ata
device atadisk # ATA disk drives
options ATA_STATIC_ID #Static device numbering
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1
device vga0 at isa?
device sc0 at isa? flags 0x100
device npx0 at nexus? port IO_NPX irq 13
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? port IO_COM2 irq 3
device miibus
device dc
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device tun # Packet tunnel.
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device bpf 8 # Berkeley packet filter
pseudo-device vn 2
pseudo-device gzip
pseudo-device splash
device smbus # Bus support, required for smb below.
device intpm
device alpm
device ichsmb
device viapm
device smb
device iicbus # Bus support, required for ic/iic/iicsmb below.
device iicbb
device ic
device iic
device iicsmb # smb over i2c bridge
device pcf0 at isa? port 0x320 irq 5
>Description:
Repeatable kernel panics per day with message "softdep_lock: locking against myself"
$ gdb -k kernel.debug vmcore.1
GNU gdb 4.18 (FreeBSD)
Copyright 1998 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-unknown-freebsd"...
IdlePTD at phsyical address 0x00334000
initial pcb at physical address 0x002a7b40
panicstr: softdep_lock: locking against myself
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0xffff000a
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc01f9a9c
stack pointer = 0x10:0xcd10fd10
frame pointer = 0x10:0xcd10fd10
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 6 (syncer)
interrupt mask = bio
trap number = 12
panic: page fault
syncing disks... panic: softdep_lock: locking against myself
Uptime: 17h51m29s
dumping to dev #ad/0x20001, offset 128
dump ata0: resetting devices .. done
255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---
#0 dumpsys () at ../../kern/kern_shutdown.c:487
487 if (dumping++) {
(kgdb) where
#0 dumpsys () at ../../kern/kern_shutdown.c:487
#1 0xc0158ae3 in boot (howto=260) at ../../kern/kern_shutdown.c:316
#2 0xc0158f08 in poweroff_wait (junk=0xc02709e0, howto=0)
at ../../kern/kern_shutdown.c:595
#3 0xc01f97ce in acquire_lock (lk=0xc029633c)
at ../../ufs/ffs/ffs_softdep.c:261
#4 0xc01fde0a in softdep_fsync_mountdev (vp=0xcd0ffc00)
at ../../ufs/ffs/ffs_softdep.c:4024
#5 0xc020203a in ffs_fsync (ap=0xcd10fbb0) at ../../ufs/ffs/ffs_vnops.c:134
#6 0xc0200ccb in ffs_sync (mp=0xc1284c00, waitfor=2, cred=0xc0a3c600,
p=0xc02bc600) at vnode_if.h:558
#7 0xc01891a7 in sync (p=0xc02bc600, uap=0x0) at ../../kern/vfs_syscalls.c:576
#8 0xc0158856 in boot (howto=256) at ../../kern/kern_shutdown.c:235
#9 0xc0158f08 in poweroff_wait (junk=0xc027aa4c, howto=-1071143569)
at ../../kern/kern_shutdown.c:595
#10 0xc0242aa2 in trap_fatal (frame=0xcd10fcd0, eva=4294901770)
at ../../i386/i386/trap.c:974
#11 0xc0242775 in trap_pfault (frame=0xcd10fcd0, usermode=0, eva=4294901770)
at ../../i386/i386/trap.c:867
#12 0xc024235f in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 0,
tf_esi = -1053200128, tf_ebp = -854524656, tf_isp = -854524676,
tf_ebx = -65536, tf_edx = -1047714432, tf_ecx = -65536,
tf_eax = -1047714432, tf_trapno = 12, tf_err = 0, tf_eip = -1071670628,
tf_cs = 8, tf_eflags = 66067, tf_esp = -854524624, tf_ss = -1071654498})
at ../../i386/i386/trap.c:466
#13 0xc01f9a9c in worklist_remove (item=0xffff0000)
at ../../ufs/ffs/ffs_softdep.c:467
#14 0xc01fd99e in softdep_update_inodeblock (ip=0xc1397100, bp=0xc6580cd4,
waitfor=0) at ../../ufs/ffs/ffs_softdep.c:3847
#15 0xc01f891d in ffs_update (vp=0xcdfd8500, waitfor=0)
at ../../ufs/ffs/ffs_inode.c:106
#16 0xc01f8c01 in ffs_truncate (vp=0xcdfd8500, length=0, flags=0, cred=0x0,
p=0xcc02b5e0) at ../../ufs/ffs/ffs_inode.c:201
#17 0xc0203018 in ufs_inactive (ap=0xcd10fed8) at ../../ufs/ufs/ufs_inode.c:89
#18 0xc0208511 in ufs_vnoperate (ap=0xcd10fed8)
at ../../ufs/ufs/ufs_vnops.c:2422
#19 0xc01872f8 in vput (vp=0xcdfd8500) at vnode_if.h:815
#20 0xc01fc7a4 in handle_workitem_remove (dirrem=0xc18b4f80)
at ../../ufs/ffs/ffs_softdep.c:2852
#21 0xc01f9e1d in process_worklist_item (matchmnt=0x0, flags=0)
at ../../ufs/ffs/ffs_softdep.c:716
#22 0xc01f9cc2 in softdep_process_worklist (matchmnt=0x0)
at ../../ufs/ffs/ffs_softdep.c:622
#23 0xc0186c1f in sched_sync () at ../../kern/vfs_subr.c:1177
(kgdb)
$ nm -n kernel | grep -i c01f9a
c01f9a2c t worklist_insert
c01f9a80 t worklist_remove
c01f9ad8 t workitem_free
I can provide further details upon request.
>How-To-Repeat:
Don't know - system can panic upon minimal activity
>Fix:
Wish I knew... This is production server... :-(
>Release-Note:
>Audit-Trail:
>Unformatted:
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