Konstantin Belousov <kostik...@gmail.com> wrote in <20120224150259.gv55...@deviant.kiev.zoral.com.ua>:
ko> > > #19 0x0000000800abecfc in ?? ()
ko> > > Previous frame inner to this frame (corrupt stack?)
ko> > > (kgdb)
ko> > Can you, please, print out the content of *td, e.g. from the frame 16 ?
ko>
ko> And *req from the frame 11, please.
Here:
(kgdb) f 16
#16 0xffffffff80675e3a in __sysctl (td=0xffffff0396ec5460,
uap=0xffffff86c6389bc0) at /usr/src/sys/kern/kern_sysctl.c:1491
1491 error = userland_sysctl(td, name, uap->namelen,
(kgdb) print *td
$2 = {td_lock = 0xffffffff80d7f540, td_proc = 0xffffff03969bf470, td_plist = {
tqe_next = 0x0, tqe_prev = 0xffffff03969bf480}, td_runq = {tqe_next = 0x0,
tqe_prev = 0xffffffff80d7f788}, td_slpq = {tqe_next = 0x0,
tqe_prev = 0xffffff0396ebe800}, td_lockq = {tqe_next = 0x0,
tqe_prev = 0xffffff86c57b48a0}, td_cpuset = 0xffffff0005789dc8,
td_sel = 0xffffff01b5dd0500, td_sleepqueue = 0xffffff0396ebe800,
td_turnstile = 0xffffff01334cf600, td_umtxq = 0xffffff0396ec3a80,
td_tid = 100763, td_sigqueue = {sq_signals = {__bits = {0, 0, 0, 0}},
sq_kill = {__bits = {0, 0, 0, 0}}, sq_list = {tqh_first = 0x0,
tqh_last = 0xffffff0396ec5500}, sq_proc = 0xffffff03969bf470,
sq_flags = 1}, td_flags = 65540, td_inhibitors = 0, td_pflags = 0,
td_dupfd = 0, td_sqqueue = 0, td_wchan = 0x0, td_wmesg = 0x0,
td_lastcpu = 4 '\004', td_oncpu = 4 '\004', td_owepreempt = 0 '\0',
td_tsqueue = 255 'ΓΏ', td_locks = 4, td_rw_rlocks = 0, td_lk_slocks = 0,
td_blocked = 0x0, td_lockname = 0x0, td_contested = {lh_first = 0x0},
td_sleeplocks = 0xffffffff80ecebf0, td_intr_nesting_level = 0,
td_pinned = 0, td_ucred = 0xffffff007d537b00, td_estcpu = 0, td_slptick = 0,
td_blktick = 0, td_ru = {ru_utime = {tv_sec = 0, tv_usec = 0}, ru_stime = {
tv_sec = 0, tv_usec = 0}, ru_maxrss = 1864, ru_ixrss = 66288,
ru_idrss = 1347856, ru_isrss = 176768, ru_minflt = 263901, ru_majflt = 10,
ru_nswap = 0, ru_inblock = 0, ru_oublock = 0, ru_msgsnd = 0,
ru_msgrcv = 0, ru_nsignals = 0, ru_nvcsw = 14937, ru_nivcsw = 3286},
td_incruntime = 0, td_runtime = 15204044088, td_pticks = 15, td_sticks = 15,
td_iticks = 0, td_uticks = 0, td_intrval = 0, td_oldsigmask = {__bits = {0,
0, 0, 0}}, td_sigmask = {__bits = {0, 0, 0, 0}}, td_generation = 18223,
td_sigstk = {ss_sp = 0x0, ss_size = 0, ss_flags = 4}, td_xsig = 0,
td_profil_addr = 0, td_profil_ticks = 0,
td_name = "top", '\0' <repeats 16 times>, td_fpop = 0x0, td_dbgflags = 0,
td_dbgksi = {ksi_link = {tqe_next = 0x0, tqe_prev = 0x0}, ksi_info = {
si_signo = 0, si_errno = 0, si_code = 0, si_pid = 0, si_uid = 0,
si_status = 0, si_addr = 0x0, si_value = {sival_int = 0,
sival_ptr = 0x0, sigval_int = 0, sigval_ptr = 0x0}, _reason = {
_fault = {_trapno = 0}, _timer = {_timerid = 0, _overrun = 0},
_mesgq = {_mqd = 0}, _poll = {_band = 0}, __spare__ = {__spare1__ = 0,
__spare2__ = {0, 0, 0, 0, 0, 0, 0}}}}, ksi_flags = 0,
ksi_sigq = 0x0}, td_ng_outbound = 0, td_osd = {osd_nslots = 0,
osd_slots = 0x0, osd_next = {le_next = 0x0, le_prev = 0x0}},
td_rqindex = 32 ' ', td_base_pri = 128 '\200', td_priority = 128 '\200',
td_pri_class = 3 '\003', td_user_pri = 129 '\201',
td_base_user_pri = 129 '\201', td_pcb = 0xffffff86c6389d10,
td_state = TDS_RUNNING, td_retval = {0, 34375032832}, td_slpcallout = {
c_links = {sle = {sle_next = 0x0}, tqe = {tqe_next = 0x0,
tqe_prev = 0xffffff800042ccd0}}, c_time = 51568077,
c_arg = 0xffffff0396ec5460, c_func = 0xffffffff806a84c0 <sleepq_timeout>,
c_lock = 0x0, c_flags = 18, c_cpu = 4}, td_frame = 0xffffff86c6389c50,
td_kstack_obj = 0xffffff03410b20d8, td_kstack = 18446743553049124864,
td_kstack_pages = 4, td_unused1 = 0x0, td_unused2 = 0, td_unused3 = 0,
td_critnest = 0, td_md = {md_spinlock_count = 0, md_saved_flags = 70},
td_sched = 0xffffff0396ec5890, td_ar = 0x0, td_syscalls = 469926,
td_lprof = {{lh_first = 0x0}, {lh_first = 0x0}}, td_dtrace = 0x0,
td_errno = 0, td_vnet = 0x0, td_vnet_lpush = 0x0, td_rux = {
rux_runtime = 15204044088, rux_uticks = 226, rux_sticks = 1140,
rux_iticks = 0, rux_uu = 0, rux_su = 0, rux_tu = 0},
td_map_def_user = 0x0, td_dbg_forked = 0}
(kgdb) f 11
#11 0xffffffff8065f6a6 in sysctl_out_proc_copyout (ki=0xffffff86c6389470,
req=0xffffff86c63899c0) at /usr/src/sys/kern/kern_proc.c:1085
1085 error = SYSCTL_OUT(req, ki, sizeof(struct kinfo_proc));
(kgdb) print *req
$3 = {td = 0xffffff0396ec5460, lock = 2, oldptr = 0x800e96000, oldlen = 68217,
oldidx = 1088, oldfunc = 0xffffffff80675e80 <sysctl_old_user>, newptr = 0x0,
newlen = 0, newidx = 0, newfunc = 0xffffffff80675d10 <sysctl_new_user>,
validlen = 68217, flags = 0}
(kgdb) quit
-- Hiroki
pgpXBb7kwRDuX.pgp
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