On Fri, 8 Apr 2005, Rene Ladan wrote:
> has anyone seen this panic yet? It appears to be LOR-related :
This is a tough one since it occured while ddb was active. How did you
cause this?
>
> [GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so:
> Undefined symbol "ps_pglobal_lookup"]
> GNU gdb 6.1.1 [FreeBSD]
>
> #0 doadump () at pcpu.h:159
> 159 pcpu.h: No such file or directory.
> in pcpu.h
> (kgdb) bt f
> #0 doadump () at pcpu.h:159
> No locals.
> #1 0xc04944ea in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:410
> first_buf_printf = 1
> #2 0xc0494858 in panic (
> fmt=0xc05fc48f "blockable sleep lock (%s) %s @ %s:%d")
> at /usr/src/sys/kern/kern_shutdown.c:566
> td = (struct thread *) 0xc13df000
> bootopt = 256
> newpanic = 1
> ap = 0xc9ba6670 "ÃÅ`ÃÃÃ_Ã\236a_ÃÂ\005"
> buf = "blockable sleep lock (sleep mutex) tty @
> /usr/src/sys/kern/kern_event.c:1453", '\0' <repeats 179 times>
> #3 0xc04bb0ae in witness_checkorder (lock=0xc1580110, flags=9,
> file=0xc05f619e "/usr/src/sys/kern/kern_event.c", line=1453)
> at /usr/src/sys/kern/subr_witness.c:709
> lock_list = (struct lock_list_entry **) 0xf00
> lle = (struct lock_list_entry *) 0x20
> lock1 = (struct lock_instance *) 0xc13df000
> lock2 = (struct lock_instance *) 0x0
> class = (struct lock_class *) 0xc062045c
> w = (struct witness *) 0xc0648808
> w1 = (struct witness *) 0xc0686b28
> td = (struct thread *) 0xc13df000
> ---Type <return> to continue, or q <return> to quit---
> i = -1067755093
> j = -910530880
> __func__ = "witness_checkorder"
> #4 0xc048a5fa in _mtx_lock_flags (m=0xc1580110, opts=0,
> file=0xc05f619e "/usr/src/sys/kern/kern_event.c", line=1453)
> at /usr/src/sys/kern/kern_mutex.c:271
> No locals.
> #5 0xc0476d25 in knote (list=0xc1580098, hint=0, islocked=0)
> at /usr/src/sys/kern/kern_event.c:1453
> kq = (struct kqueue *) 0xc1580038
> kn = (struct knote *) 0xc1580000
> #6 0xc04c934e in ttwwakeup (tp=0xc1580000) at /usr/src/sys/kern/tty.c:2394
> No locals.
> #7 0xc05ba441 in scstart (tp=0xc1580000)
> at /usr/src/sys/dev/syscons/syscons.c:1369
> rbp = (struct clist *) 0xc1580038
> len = 0
> buf =
> "\fziÃ\200\a\000\000\000p\000\000\000ziÃlgÂÃb`[Ã\fziÃ\200\a\000\000
> \000\000\000\000p\000\000BK\000
> \\gÂÃ:z[ÃÃ\235hÃ\fziÃ\000ziÃ\000\a\000\000\224gÂÃ\225a[Ã\000ziÃ\200\a\000\000
>
> \000\000\000\000\a\000\000\000\000\000\000\000ziÃ\000ziÃÃ\235hÃÅgÂÃ\016Ã[Ã\000ziÃ\200\a\000\000\000\000\000"
> scp = (scr_stat *) 0xc1697a00
> #8 0xc05bd825 in scgetc (sc=0xc0689dc0, flags=3)
> at /usr/src/sys/dev/syscons/syscons.c:3211
> ---Type <return> to continue, or q <return> to quit---
> scp = (scr_stat *) 0xc1697a00
> tp = (struct tty *) 0x0
> c = 6
> this_scr = -910530592
> f = 0
> i = 0
> #9 0xc05ba899 in sccngetch (flags=2)
> at /usr/src/sys/dev/syscons/syscons.c:1555
> fkey = {str = "\033[A", '\0' <repeats 12 times>, len = 3 '\003'}
> fkeycp = 3
> scp = (scr_stat *) 0xc1697a00
> p = (u_char *) 0x0
> cur_mode = 1
> c = -1067204928
> #10 0xc05ba6e2 in sccncheckc (cd=0xc0634480)
> at /usr/src/sys/dev/syscons/syscons.c:1478
> No locals.
> #11 0xc04cbc98 in cncheckc () at /usr/src/sys/kern/tty_cons.c:567
> cnd = (struct cn_device *) 0xc066c480
> cn = (struct consdev *) 0x0
> c = 0
> #12 0xc04cbc45 in cngetc () at /usr/src/sys/kern/tty_cons.c:548
> c = 0
> #13 0xc042a535 in db_readline (lstart=0xc063bec0 "c\n", lsize=120)
> ---Type <return> to continue, or q <return> to quit---
> at /usr/src/sys/ddb/db_input.c:324
> No locals.
> #14 0xc042a67a in db_read_line () at /usr/src/sys/ddb/db_lex.c:55
> i = 0
> #15 0xc0428d91 in db_command_loop () at /usr/src/sys/ddb/db_command.c:453
> No locals.
> #16 0xc042aef5 in db_trap (type=3, code=0) at /usr/src/sys/ddb/db_main.c:221
> jb = {{_jb = {-910530388, -910530416, -910530336, -1052905472, 0,
> -1069371754, 0, 0, 0, 0, -910530336, -1068824416}}}
> prev_jb = (void *) 0x0
> bkpt = 0
> #17 0xc04b0927 in kdb_trap (type=0, code=0, tf=0xc9ba6940)
> at /usr/src/sys/kern/subr_kdb.c:418
> handled = -910530240
> #18 0xc05d8948 in trap (frame=
> {tf_fs = -1051983848, tf_es = 16, tf_ds = -910557168, tf_edi = 9,
> tf_esi = -1051954588, tf_ebp = -910530168, tf_isp = -910530196, tf_ebx =
> -1067007556, tf_edx = 1, tf_ecx = -1056878592, tf_eax = 31, tf_trapno = 3,
> tf_err = 0, tf_eip = -1068825056, tf_cs = 8, tf_eflags = 646, tf_esp =
> -1067470996, tf_ss = -1067540423}) at /usr/src/sys/i386/i386/trap.c:576
> td = (struct thread *) 0xc13df000
> p = (struct proc *) 0xc13e61c4
> sticks = 0
> i = 0
> ---Type <return> to continue, or q <return> to quit---
> ucode = 0
> type = 3
> code = 0
> eva = 0
> #19 0xc05c7d2a in calltrap () at /usr/src/sys/i386/i386/exception.s:140
> No locals.
> #20 0xc14c0018 in ?? ()
> No symbol table info available.
> #21 0x00000010 in ?? ()
> No symbol table info available.
> #22 0xc9ba0010 in ?? ()
> No symbol table info available.
> #23 0x00000009 in ?? ()
> No symbol table info available.
> #24 0xc14c7264 in ?? ()
> No symbol table info available.
> #25 0xc9ba6988 in ?? ()
> No symbol table info available.
> #26 0xc9ba696c in ?? ()
> No symbol table info available.
> #27 0xc066c1bc in w_locklistdata ()
> No symbol table info available.
> #28 0x00000001 in ?? ()
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #29 0xc1015000 in ?? ()
> No symbol table info available.
> #30 0x0000001f in ?? ()
> No symbol table info available.
> #31 0x00000003 in ?? ()
> No symbol table info available.
> #32 0x00000000 in ?? ()
> No symbol table info available.
> #33 0xc04b0620 in kdb_enter (msg=0x0) at cpufunc.h:56
> No locals.
> #34 0xc04bb6ab in witness_checkorder (lock=0xc14c7264, flags=9,
> file=0xc06fd7ad "/usr/src/sys/modules/fxp/../../dev/fxp/if_fxp.c",
> line=1233) at /usr/src/sys/kern/subr_witness.c:946
> lock_list = (struct lock_list_entry **) 0xc13df070
> lle = (struct lock_list_entry *) 0xc066c1b8
> lock1 = (struct lock_instance *) 0xc066c1bc
> lock2 = (struct lock_instance *) 0x0
> class = (struct lock_class *) 0xc062045c
> w = (struct witness *) 0xc06488d0
> w1 = (struct witness *) 0xc0649ac8
> td = (struct thread *) 0xc066c1bc
> i = -1
> j = 0
> __func__ = "witness_checkorder"
> ---Type <return> to continue, or q <return> to quit---
> #35 0xc048a5fa in _mtx_lock_flags (m=0xc14c7264, opts=0,
> file=0xc06fd7ad "/usr/src/sys/modules/fxp/../../dev/fxp/if_fxp.c",
> line=1233) at /usr/src/sys/kern/kern_mutex.c:271
> No locals.
> #36 0xc06fadb7 in ?? ()
> No symbol table info available.
> #37 0xc14c7264 in ?? ()
> No symbol table info available.
> #38 0x00000000 in ?? ()
> No symbol table info available.
> #39 0xc06fd7ad in ?? ()
> No symbol table info available.
> #40 0x000004d1 in ?? ()
> No symbol table info available.
> #41 0xc14c7000 in ?? ()
> No symbol table info available.
> #42 0xc14c7000 in ?? ()
> No symbol table info available.
> #43 0xc9ba6a38 in ?? ()
> No symbol table info available.
> #44 0xc050aa39 in if_start (ifp=0xc14c7264) at /usr/src/sys/net/if.c:1953
> No locals.
> Previous frame identical to this frame (corrupt stack?)
> (kgdb) q
>
> System:
>
> FreeBSD 5.4-STABLE #1: Sun Apr 3 22:31:40 CEST 2005 [EMAIL
> PROTECTED]:/usr/obj/usr/src/sys/RENE
>
> World/kernel is built with -O2 -pipe, hence the partial stack backtrace.
>
> Config:
> --------------------------
> ident RENE
> makeoptions DEBUG=-g
>
> machine i386
> cpu I686_CPU
> options CPU_FASTER_5X86_FPU
> options CLK_USE_I8254_CALIBRATION
>
> device apic
>
> options SCHED_4BSD
>
> options KDB
> options KDB_TRACE
> options DDB
> options DDB_NUMSYM
> options WITNESS
> options WITNESS_SKIPSPIN
> options WITNESS_KDB
> options INVARIANTS
> options INVARIANT_SUPPORT
>
> options PREEMPTION
> options ADAPTIVE_GIANT
>
> options INET
> options INET6
>
> options FFS
> options SOFTUPDATES
> options UFS_ACL
> options UFS_DIRHASH
>
> options COMPAT_FREEBSD4
> options COMPAT_43
>
> options KTRACE
>
> options PQ_CACHESIZE=32
>
> options _KPOSIX_PRIORITY_SCHEDULING
>
> device isa
> device pci
>
> device ata
> device atadisk
> device atapicd
>
> device atkbdc
> device atkbd
> options KBD_INSTALL_CDEV
>
> device psm
> device sc
> options SC_TWOBUTTON_MOUSE
>
> device vga
> options FB_INSTALL_CDEV
>
> device npx
>
> options DEVICE_POLLING
> options HZ=1000
>
> device loop
> device ether
> device pty
> device bpf
>
> device splash
>
> device pmtimer
> -------------------
>
> Regards,
> Rene
>
--
Doug White | FreeBSD: The Power to Serve
[EMAIL PROTECTED] | www.FreeBSD.org
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
