https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228568
Bug ID: 228568
Summary: deadlock:kldunload
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Keywords: panic
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: b...@freebsd.org
Reporter: ead...@freebsd.org
kldunload radeonkms.ko
Already logging to /home/eax/out.
#0 __curthread () at ./machine/pcpu.h:231
td = <optimized out>
#1 doadump (textdump=0) at /usr/src/sys/kern/kern_shutdown.c:366
error = <error reading variable error (Cannot access memory at address
0x0)>
coredump = <optimized out>
#2 0xffffffff804350bb in db_dump (dummy=<optimized out>, dummy2=<unavailable>,
dummy3=<unavailable>, dummy4=<unavailable>)
at /usr/src/sys/ddb/db_command.c:574
error = <optimized out>
#3 0xffffffff80434e7d in db_command (last_cmdp=<optimized out>,
cmd_table=<optimized out>, dopager=<optimized out>) at
/usr/src/sys/ddb/db_command.c:481
modif = ""
have_addr = false
t = <optimized out>
result = <optimized out>
cmd = 0xffffffff81a5ce20 <db_cmds+480>
addr = <unavailable>
count = <unavailable>
#4 0xffffffff80434c14 in db_command_loop () at
/usr/src/sys/ddb/db_command.c:534
No locals.
#5 0xffffffff80437dff in db_trap (type=<optimized out>, code=<optimized out>)
at /usr/src/sys/ddb/db_main.c:252
jb = {{
_jb = {-2195602762112,
-2195602762120,
-2195602761984,
-2115128448,
-2119837784,
0,
3,
-2143060599,
-2195602762016,
-2137136836,
-2116086448,
0}
}}
bkpt = false
watchpt = false
prev_jb = 0x0
why = <optimized out>
#6 0xffffffff80ba3923 in kdb_trap (type=3, code=0, tf=<optimized out>) at
/usr/src/sys/kern/subr_kdb.c:697
be = 0xffffffff81a5d7a8 <ddb_dbbe>
intr = 70
did_stop_cpus = <error reading variable did_stop_cpus (Cannot access
memory at address 0x1)>
handled = <optimized out>
other_cpus = <optimized out>
#7 0xffffffff8101f881 in trap (frame=0xfffffe00cbe09890) at
/usr/src/sys/amd64/amd64/trap.c:605
td = 0xfffff8007d971000
dr6 = 0
addr = -2195602761584
ucode = -2093870928
signo = 0
p = 0xfffffe00cbe09a00
type = 3
ksi = {
ksi_link = {
tqe_next = 0x20ffffff00000012,
tqe_prev = 0x0
},
ksi_info = {
si_signo = -2109401424,
si_errno = -1,
si_code = 1839114452,
si_pid = 1576597013,
si_uid = 3420494512,
si_status = -512,
si_addr = 0x0,
si_value = {
sival_int = -1019,
sival_ptr = 0xfffffc05,
sigval_int = -1019,
sigval_ptr = 0xfffffc05
},
_reason = {
_fault = {
_trapno = 0
},
_timer = {
_timerid = 0,
_overrun = 0
},
_mesgq = {
_mqd = 0
},
_poll = {
_band = 0
},
__spare__ = {
__spare1__ = 0,
__spare2__ = {-4096,
511,
-874473392,
-512,
-2143060083,
-1,
1839114452}
}
}
},
ksi_flags = -2127898362,
ksi_sigq = 0xfffff8045850b001
}
#8 <signal handler called>
No locals.
#9 kdb_enter (why=0xffffffff812ad906 "panic", msg=<optimized out>) at
/usr/src/sys/kern/subr_kdb.c:479
No locals.
#10 0xffffffff80b5c7a0 in vpanic (fmt=<optimized out>, ap=0xfffffe00cbe09a00)
at /usr/src/sys/kern/kern_shutdown.c:852
buf = "deadlkres: possible deadlock detected for
0xfffff8045850b000, blocked for 200655 ticks\n"
td = 0xfffff8007d971000
bootopt = <error reading variable bootopt (Cannot access memory at
address 0x4)>
newpanic = <error reading variable newpanic (Cannot access memory at
address 0x1)>
other_cpus = <optimized out>
#11 0xffffffff80b5c833 in panic (fmt=0xffffffff81df1598 <cnputs_mtx>
"\276\061'\201\377\377\377\377") at /usr/src/sys/kern/kern_shutdown.c:790
ap = {{
gp_offset = 32,
fp_offset = 48,
overflow_arg_area = 0xfffffe00cbe09a30,
reg_save_area = 0xfffffe00cbe099d0
}}
#12 0xffffffff80af5b17 in deadlkres () at /usr/src/sys/kern/kern_clock.c:244
tryl = <optimized out>
slpticks = 200000
blkticks = 200000
p = 0xfffff805ece59538
td = <optimized out>
wchan = <optimized out>
tticks = 200655
slptype = <optimized out>
i = <error reading variable i (Cannot access memory at address 0x2)>
#13 0xffffffff80b1bfe4 in fork_exit (callout=0xffffffff80af57f0 <deadlkres>,
arg=0x0, frame=0xfffffe00cbe09ac0) at /usr/src/sys/kern/kern_fork.c:1039
td = 0xfffff8007d971000
p = 0xffffffff82001e20 <proc0>
dtd = <optimized out>
#14 <signal handler called>
No locals.
---
#13 0xffffffff80b1bfe4 in fork_exit (callout=0xffffffff80af57f0 <deadlkres>,
arg=0x0, frame=0xfffffe00cbe09ac0) at /usr/src/sys/kern/kern_fork.c:1039
1039 callout(arg, frame);
$1 = {
p_list = {
le_next = 0x0,
le_prev = 0xfffff800036e7a70
},
p_threads = {
tqh_first = 0xffffffff82002380 <thread0_st>,
tqh_last = 0xfffff80092cc3010
},
p_slock = {
lock_object = {
lo_name = 0xffffffff812a8a7f "process slock",
lo_flags = 196608,
lo_data = 0,
lo_witness = 0x0
},
mtx_lock = 0
},
p_ucred = 0xfffff800036aae00,
p_fd = 0xfffff800036d38a0,
p_fdtol = 0x0,
p_stats = 0xfffff800036dd000,
p_limit = 0xfffff800036d8000,
p_limco = {
c_links = {
le = {
le_next = 0x0,
le_prev = 0x0
},
sle = {
sle_next = 0x0
},
tqe = {
tqe_next = 0x0,
tqe_prev = 0x0
}
},
c_time = 0,
c_precision = 0,
c_arg = 0x0,
c_func = 0x0,
c_lock = 0xffffffff82001f40 <proc0+288>,
c_flags = 0,
c_iflags = 0,
c_cpu = 0
},
p_sigacts = 0xfffff800036cc000,
p_flag = 268436100,
p_flag2 = 0,
p_state = PRS_NORMAL,
p_pid = 0,
p_hash = {
le_next = 0x0,
le_prev = 0xfffffe0000f81000
},
p_pglist = {
le_next = 0xfffff8009f2ae538,
le_prev = 0xffffffff81df1380 <pgrp0+16>
},
p_pptr = 0x0,
p_sibling = {
le_next = 0x0,
le_prev = 0x0
},
p_children = {
lh_first = 0xfffff8009f2ae538
},
p_reaper = 0xffffffff82001e20 <proc0>,
p_reaplist = {
lh_first = 0xfffff8009f2ae538
},
p_reapsibling = {
le_next = 0x0,
le_prev = 0xfffff8009284b648
},
p_mtx = {
lock_object = {
lo_name = 0xffffffff81234bb2 "process lock",
lo_flags = 21168128,
lo_data = 0,
lo_witness = 0xfffff8103f049400
},
mtx_lock = 0
},
p_statmtx = {
lock_object = {
lo_name = 0xffffffff811ec4b7 "pstatl",
lo_flags = 196608,
lo_data = 0,
lo_witness = 0x0
},
mtx_lock = 0
},
p_itimmtx = {
lock_object = {
lo_name = 0xffffffff8122ace7 "pitiml",
lo_flags = 196608,
lo_data = 0,
lo_witness = 0x0
},
mtx_lock = 0
},
p_profmtx = {
lock_object = {
lo_name = 0xffffffff812888fa "pprofl",
lo_flags = 196608,
lo_data = 0,
lo_witness = 0x0
},
mtx_lock = 0
},
p_ksi = 0x0,
p_sigqueue = {
sq_signals = {
__bits = {0,
0,
0,
0}
},
sq_kill = {
__bits = {0,
0,
0,
0}
},
sq_ptrace = {
__bits = {0,
0,
0,
0}
},
sq_list = {
tqh_first = 0x0,
tqh_last = 0xffffffff82001ff8 <proc0+472>
},
sq_proc = 0xffffffff82001e20 <proc0>,
sq_flags = 1
},
p_oppid = 0,
p_vmspace = 0xffffffff82002918 <vmspace0>,
p_swtick = 0,
p_cowgen = 0,
p_realtimer = {
it_interval = {
tv_sec = 0,
tv_usec = 0
},
it_value = {
tv_sec = 0,
tv_usec = 0
}
},
p_ru = {
ru_utime = {
tv_sec = 0,
tv_usec = 0
},
ru_stime = {
tv_sec = 0,
tv_usec = 0
},
ru_maxrss = 0,
ru_ixrss = 0,
ru_idrss = 0,
ru_isrss = 0,
ru_minflt = 0,
ru_majflt = 0,
ru_nswap = 0,
ru_inblock = 3652,
ru_oublock = 0,
ru_msgsnd = 0,
ru_msgrcv = 0,
ru_nsignals = 0,
ru_nvcsw = 452,
ru_nivcsw = 0
},
p_rux = {
rux_runtime = 954709275788,
rux_uticks = 0,
rux_sticks = 35583,
rux_iticks = 0,
rux_uu = 0,
rux_su = 281317832,
rux_tu = 281317832
},
p_crux = {
rux_runtime = 0,
rux_uticks = 0,
rux_sticks = 0,
rux_iticks = 0,
rux_uu = 0,
rux_su = 0,
rux_tu = 0
},
p_profthreads = 0,
p_exitthreads = 0,
p_traceflag = 0,
p_tracevp = 0x0,
p_tracecred = 0x0,
p_textvp = 0x0,
p_lock = 0,
p_sigiolst = {
slh_first = 0x0
},
p_sigparent = 0,
p_sig = 0,
p_code = 0,
p_stops = 0,
p_stype = 0,
p_step = 0 '\000',
p_pfsflags = 0 '\000',
p_ptevents = 0,
p_nlminfo = 0x0,
p_aioinfo = 0x0,
p_singlethread = 0x0,
p_suspcount = 0,
p_xthread = 0x0,
p_boundary_count = 0,
p_pendingcnt = 0,
p_itimers = 0x0,
p_procdesc = 0x0,
p_treeflag = 0,
p_pendingexits = 0,
p_filemon = 0x0,
p_pdeathsig = 0,
p_magic = 3203398350,
p_osrel = 1200064,
p_comm = "kernel",
p_sysent = 0xffffffff81b05e90 <null_sysvec>,
p_args = 0x0,
p_cpulimit = 9223372036854775807,
p_nice = 0 '\000',
p_fibnum = 0,
p_reapsubtree = 0,
p_elf_machine = 0,
p_elf_flags = 0,
p_xexit = 0,
p_xsig = 0,
p_pgrp = 0xffffffff81df1370 <pgrp0>,
p_klist = 0xfffff8000308d540,
p_numthreads = 532,
p_md = {
md_ldt = 0x0,
md_ldt_sd = {
sd_lolimit = 0,
sd_lobase = 0,
sd_type = 0,
sd_dpl = 0,
sd_p = 0,
sd_hilimit = 0,
sd_xx0 = 0,
sd_gran = 0,
sd_hibase = 0,
sd_xx1 = 0,
sd_mbz = 0,
sd_xx2 = 0
}
},
p_itcallout = {
c_links = {
le = {
le_next = 0x0,
le_prev = 0x0
},
sle = {
sle_next = 0x0
},
tqe = {
tqe_next = 0x0,
tqe_prev = 0x0
}
},
c_time = 0,
c_precision = 0,
c_arg = 0x0,
c_func = 0x0,
c_lock = 0xffffffff82001f40 <proc0+288>,
c_flags = 0,
c_iflags = 0,
c_cpu = 0
},
p_acflag = 0,
p_peers = 0x0,
p_leader = 0xffffffff82001e20 <proc0>,
p_emuldata = 0x0,
p_label = 0x0,
p_ktr = {
stqh_first = 0x0,
stqh_last = 0xffffffff820022e8 <proc0+1224>
},
p_mqnotifier = {
lh_first = 0x0
},
p_dtrace = 0xfffff8000303b900,
p_pwait = {
cv_description = 0x0,
cv_waiters = 0
},
p_dbgwait = {
cv_description = 0x0,
cv_waiters = 0
},
p_prev_runtime = 0,
p_racct = 0x0,
p_throttled = 0,
p_orphan = {
le_next = 0x0,
le_prev = 0x0
},
p_orphans = {
lh_first = 0x0
}
}
$2 = {
td_lock = 0xffffffff81e0e340 <tdq_cpu>,
td_proc = 0xffffffff82001e20 <proc0>,
td_plist = {
tqe_next = 0xfffff8007d970000,
tqe_prev = 0xfffff8007d90e590
},
td_runq = {
tqe_next = 0x0,
tqe_prev = 0xffffffff81e0e4f8 <tdq_cpu+440>
},
td_slpq = {
tqe_next = 0x0,
tqe_prev = 0xfffff80003e3fe80
},
td_lockq = {
tqe_next = 0x0,
tqe_prev = 0x0
},
td_hash = {
le_next = 0x0,
le_prev = 0xfffffe00ba403fc0
},
td_cpuset = 0xfffff800036cae80,
td_domain = {
dr_policy = 0xffffffff81df16a8 <domainset0>,
dr_iterator = 0
},
td_sel = 0x0,
td_sleepqueue = 0xfffff80003e3fe80,
td_turnstile = 0xfffff8007d969000,
td_rlqe = 0x0,
td_umtxq = 0xfffff8007d96d280,
td_tid = 100344,
td_sigqueue = {
sq_signals = {
__bits = {0,
0,
0,
0}
},
sq_kill = {
__bits = {0,
0,
0,
0}
},
sq_ptrace = {
__bits = {0,
0,
0,
0}
},
sq_list = {
tqh_first = 0x0,
tqh_last = 0xfffff8007d9710d8
},
sq_proc = 0xffffffff82001e20 <proc0>,
sq_flags = 1
},
td_lend_user_pri = 255 '\377',
td_epochnest = 0 '\000',
td_flags = 4,
td_inhibitors = 0,
td_pflags = 2097152,
td_dupfd = 0,
td_sqqueue = 0,
td_wchan = 0x0,
td_wmesg = 0x0,
td_owepreempt = 0 '\000',
td_tsqueue = 0 '\000',
td_locks = 0,
td_rw_rlocks = 0,
td_sx_slocks = 0,
td_lk_slocks = 0,
td_stopsched = 1,
td_blocked = 0x0,
td_lockname = 0x0,
td_contested = {
lh_first = 0x0
},
td_sleeplocks = 0xffffffff81f34db8 <w_locklistdata+246840>,
td_intr_nesting_level = 0,
td_pinned = 1,
td_ucred = 0xfffff800036aae00,
td_limit = 0xfffff800036d8000,
td_slptick = 0,
td_blktick = 0,
td_swvoltick = -2135472893,
td_swinvoltick = -2136385896,
td_cow = 0,
td_ru = {
ru_utime = {
tv_sec = 0,
tv_usec = 0
},
ru_stime = {
tv_sec = 0,
tv_usec = 0
},
ru_maxrss = 0,
ru_ixrss = 0,
ru_idrss = 0,
ru_isrss = 0,
ru_minflt = 0,
ru_majflt = 0,
ru_nswap = 0,
ru_inblock = 0,
ru_oublock = 0,
ru_msgsnd = 0,
ru_msgrcv = 0,
ru_nsignals = 0,
ru_nvcsw = 4180,
ru_nivcsw = 13
},
td_rux = {
rux_runtime = 5237952892,
rux_uticks = 0,
rux_sticks = 215,
rux_iticks = 0,
rux_uu = 0,
rux_su = 0,
rux_tu = 0
},
td_incruntime = 0,
td_runtime = 5237646450,
td_pticks = 215,
td_sticks = 0,
td_iticks = 0,
td_uticks = 0,
td_intrval = 0,
td_oldsigmask = {
__bits = {0,
0,
0,
0}
},
td_generation = 4193,
td_sigstk = {
ss_sp = 0x0,
ss_size = 0,
ss_flags = 0
},
td_xsig = 0,
td_profil_addr = 0,
td_profil_ticks = 0,
td_name = "deadlkres",
td_fpop = 0x0,
td_dbgflags = 0,
td_si = {
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}
}
}
},
td_ng_outbound = 0,
td_osd = {
osd_nslots = 0,
osd_slots = 0x0,
osd_next = {
le_next = 0x0,
le_prev = 0x0
}
},
td_map_def_user = 0x0,
td_dbg_forked = 0,
td_vp_reserv = 0,
td_no_sleeping = 0,
td_su = 0x0,
td_sleeptimo = 0,
td_rtcgen = 0,
td_vslock_sz = 0,
td_sigmask = {
__bits = {0,
0,
0,
0}
},
td_rqindex = 21 '\025',
td_base_pri = 84 'T',
td_priority = 84 'T',
td_pri_class = 3 '\003',
td_user_pri = 120 'x',
td_base_user_pri = 120 'x',
td_pre_epoch_prio = 0 '\000',
td_rb_list = 0,
td_rbp_list = 0,
td_rb_inact = 0,
td_sa = {
code = 0,
callp = 0x0,
args = {0,
0,
0,
0,
0,
0,
0,
0},
narg = 0
},
td_pcb = 0xfffffe00cbe09b80,
td_state = TDS_RUNNING,
td_uretoff = {
tdu_retval = {0,
0},
tdu_off = 0
},
td_cowgen = 0,
td_slpcallout = {
c_links = {
le = {
le_next = 0x0,
le_prev = 0xfffffe00ba463608
},
sle = {
sle_next = 0x0
},
tqe = {
tqe_next = 0x0,
tqe_prev = 0xfffffe00ba463608
}
},
c_time = 54179960823541,
c_precision = 805306312,
c_arg = 0xfffff8007d971000,
c_func = 0xffffffff80bb1a90 <sleepq_timeout>,
c_lock = 0x0,
c_flags = 2,
c_iflags = 272,
c_cpu = 1
},
td_frame = 0xfffffe00cbe09ac0,
td_kstack_obj = 0xfffff8007d979800,
td_kstack = 18446741878106775552,
td_kstack_pages = 4,
td_critnest = 1,
td_md = {
md_spinlock_count = 1,
md_saved_flags = 582,
md_spurflt_addr = 0,
md_invl_gen = {
gen = 0,
link = {
le_next = 0x0,
le_prev = 0x0
}
}
},
td_ar = 0x0,
td_lprof = {{
lh_first = 0x0
},
{
lh_first = 0x0
}},
td_dtrace = 0xfffff8007d975b00,
td_errno = 0,
td_vnet = 0x0,
td_vnet_lpush = 0x0,
td_intr_frame = 0x0,
td_rfppwait_p = 0x0,
td_ma = 0x0,
td_ma_cnt = 0,
td_emuldata = 0x0,
td_lastcpu = 1,
td_oncpu = 0,
td_lkpi_task = 0x0,
td_epochq = {
tqe_next = 0x0,
tqe_prev = 0x0
},
td_epoch_section = {
bucket = 0
}
}
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