Date: Sun, 20 Jan 2008 04:42:36 +0100 From: Pawel Worach <pawel.worach@gmail.com> To: FreeBSD Current <freebsd-current@freebsd.org> Subject: page fault panic in scioctl and console-kit-daemon Message-ID: <4792C32C.5010205@gmail.com>
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Hi,
While starting console-kit-daemon (sysutils/consolekit 0.2.3) during
boot or in single-user mode the system panics. If I start it post-boot
it runs fine. This is on 8.0-CURRENT from about 12 hours ago, another
user also reported the same on RELENG_7. Any other information I can
provide ?
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc04d2ab4
stack pointer = 0x28:0xe6499b18
frame pointer = 0x28:0xe6499b80
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 = 134 (console-kit-daemon)
Physical memory: 1014 MB
Dumping 43 MB: 28 12
#0 doadump () at pcpu.h:195
195 pcpu.h: No such file or directory.
in pcpu.h
(kgdb) bt
#0 doadump () at pcpu.h:195
#1 0xc0461c69 in db_fncall (dummy1=1, dummy2=0, dummy3=-1064824544,
dummy4=0xe64998b0 "\200�\233�") at
/usr/src/sys/ddb/db_command.c:514
#2 0xc046221a in db_command (last_cmdp=0xc084eaf4, cmd_table=0x0,
dopager=1)
at /usr/src/sys/ddb/db_command.c:411
#3 0xc0462335 in db_command_loop () at /usr/src/sys/ddb/db_command.c:464
#4 0xc0463e1c in db_trap (type=12, code=0) at
/usr/src/sys/ddb/db_main.c:228
#5 0xc0577aa3 in kdb_trap (type=12, code=0, tf=0xe6499ad8)
at /usr/src/sys/kern/subr_kdb.c:510
#6 0xc07a280f in trap_fatal (frame=0xe6499ad8, eva=4)
at /usr/src/sys/i386/i386/trap.c:889
#7 0xc07a2abb in trap_pfault (frame=0xe6499ad8, usermode=0, eva=4)
at /usr/src/sys/i386/i386/trap.c:811
#8 0xc07a34a2 in trap (frame=0xe6499ad8) at
/usr/src/sys/i386/i386/trap.c:489
#9 0xc079183b in calltrap () at /usr/src/sys/i386/i386/exception.s:146
#10 0xc04d2ab4 in scioctl (dev=0xc3b20d00, cmd=537163270,
data=0xe6499c70 "\002", flag=1, td=0xc3d3c880)
at /usr/src/sys/dev/syscons/syscons.c:1073
#11 0xc051ed1a in giant_ioctl (dev=0xc3b20d00, cmd=537163270,
data=0xe6499c70 "\002", fflag=1, td=0xc3d3c880)
at /usr/src/sys/kern/kern_conf.c:349
#12 0xc0598194 in cnioctl (dev=0xc3b20d00, cmd=537163270,
data=0xe6499c70 "\002", flag=1, td=0xc3d3c880)
---Type <return> to continue, or q <return> to quit---
at /usr/src/sys/kern/tty_cons.c:521
#13 0xc051ed1a in giant_ioctl (dev=0xc39bf900, cmd=537163270,
data=0xe6499c70 "\002", fflag=1, td=0xc3d3c880)
at /usr/src/sys/kern/kern_conf.c:349
#14 0xc04f1127 in devfs_ioctl_f (fp=0xc3ce0dd0, com=537163270,
data=0xe6499c70, cred=0xc39a0900, td=0xc3d3c880)
at /usr/src/sys/fs/devfs/devfs_vnops.c:494
#15 0xc05845f8 in kern_ioctl (td=0xc3d3c880, fd=9, com=537163270,
data=0xe6499c70 "\002") at file.h:254
#16 0xc058476f in ioctl (td=0xc3d3c880, uap=0xe6499cfc)
at /usr/src/sys/kern/sys_generic.c:677
#17 0xc07a2e25 in syscall (frame=0xe6499d38)
at /usr/src/sys/i386/i386/trap.c:1034
#18 0xc07918a0 in Xint0x80_syscall () at
/usr/src/sys/i386/i386/exception.s:203
#19 0x00000033 in ?? ()
Previous frame inner to this frame (corrupt stack?)
(kgdb) f 10
#10 0xc04d2ab4 in scioctl (dev=0xc3b20d00, cmd=537163270,
data=0xe6499c70 "\002", flag=1, td=0xc3d3c880)
at /usr/src/sys/dev/syscons/syscons.c:1073
1073 scp = sc_get_stat(SC_DEV(sc, i));
(kgdb) p sc
$1 = (sc_softc_t *) 0xc0881120
(kgdb) p *sc
$2 = {unit = 0, config = 768, flags = 65536, keyboard = 1, kbd =
0xc39fd800,
adapter = 0, adp = 0xc087c3e0, initial_mode = 24, first_vty = 0, vtys
= 16,
dev = 0xc0862320, cur_scp = 0xc08621e0, new_scp = 0x0, old_scp = 0x0,
delayed_next_scr = 0, font_loading_in_progress = 0 '\0',
switch_in_progress = 0 '\0', write_in_progress = 0 '\0',
blink_in_progress = 0 '\0', video_mtx = {lock_object = {
lo_name = 0xc07dc198 "syscons video lock",
lo_type = 0xc07dc198 "syscons video lock", lo_flags = 196608,
lo_witness_data = {lod_list = {stqe_next = 0x0}, lod_witness =
0x0}},
mtx_lock = 4, mtx_recurse = 0}, scrn_time_stamp = 459,
dflt_curs_attr = {
flags = 0, base = 3, height = 2}, curs_attr = {flags = 0, base = 3,
height = 2},
scr_map =
"\000\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037
!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237����������������������������������������"...,
scr_rmap =
"\000\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037
!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237����������������������������������������"...---Type
<return> to continue, or q <return> to quit---
,
palette =
"\000\000\000\000\000�\000�\000\000���\000\000�\000���\000���\000\000T\000\000�\000�T\000���\000T�\000���T���\000T\000\000T�\000�\000\000���T\000�T���\000���\000TT\000T�\000�T\000���TT�T���T���T\000\000T\000�T�\000T���\000\000�\000���\000���T\000TT\000�T�TT���\000T�\000���T���TT\000TT�T�\000T���T\000�T���\000���TTTTT�T�TT���TT�T���Tʏ
33;��",
'\0' <repeats 52 times>..., fonts_loaded = 8,
font_8 = 0xc0852f60 "", font_14 = 0xc0852160 "", font_16 = 0xc0851160
"",
font_22 = 0x0, cursor_char = 7 '\a', mouse_char = 208 '�'}
(kgdb) list
1068 s = spltty();
1069 error = sc_clean_up(sc->cur_scp);
1070 splx(s);
1071 if (error)
1072 return error;
1073 scp = sc_get_stat(SC_DEV(sc, i));
1074 if (scp == scp->sc->cur_scp)
1075 return 0;
1076 error = tsleep(&scp->smode, PZERO | PCATCH, "waitvt", 0);
1077 return error;
(kgdb) p i
$3 = 1
(kgdb) p sc->dev
$4 = (struct cdev **) 0xc0862320
(kgdb) p *sc->dev
$5 = (struct cdev *) 0xc3b20700
(kgdb) p **sc->dev
$6 = {si_priv = 0xc3b20700, si_flags = 4, si_atime = {tv_sec = 0,
tv_nsec = 0}, si_ctime = {tv_sec = 0, tv_nsec = 0}, si_mtime = {
tv_sec = 0, tv_nsec = 0}, si_uid = 0, si_gid = 0, si_mode = 384,
si_cred = 0x0, si_drv0 = 0, si_refcount = 1, si_list = {le_next = 0x0,
le_prev = 0xc3b20638}, si_clone = {le_next = 0x0, le_prev = 0x0},
si_children = {lh_first = 0x0}, si_siblings = {le_next = 0x0,
le_prev = 0x0}, si_parent = 0x0, si_name = 0xc3b20778 "ttyv0",
si_drv1 = 0xc08621e0, si_drv2 = 0x0, si_devsw = 0xc0815320,
si_iosize_max = 0, si_usecount = 0, si_threadcount = 0, __si_u = {
__sit_tty = 0xc3b2a400, __sid_snapdata = 0xc3b2a400},
__si_namebuf = "ttyv0", '\0' <repeats 58 times>}
(kgdb) p sc->first_vty
$7 = 0
--
Pawel
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