On 05/08/2019 5:29 pm, Mark Johnston wrote:
On Wed, May 08, 2019 at 03:52:45PM -0500, Larry Rosenman wrote:
Greetings,
Somewhere between r346483 and r347241 loading dtraceall causes a
crash. I have the cores and kernels.
It's hard for me to bisect more than this, as the box is remote.
What more do you need? (this dump is fropm r347355).
Please visit frame 8 and print *lf.
(kgdb) bt
#0 __curthread () at /usr/src/sys/amd64/include/pcpu.h:241
#1 doadump (textdump=1) at /usr/src/sys/kern/kern_shutdown.c:383
#2 0xffffffff80496320 in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:470
#3 0xffffffff80496799 in vpanic (fmt=<optimized out>, ap=<optimized
out>) at /usr/src/sys/kern/kern_shutdown.c:896
#4 0xffffffff804964d3 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:823
#5 0xffffffff80767314 in trap_fatal (frame=0xfffffe00d74d7cd0, eva=0)
at /usr/src/sys/amd64/amd64/trap.c:946
#6 0xffffffff80767379 in trap_pfault (frame=0xfffffe00d74d7cd0,
usermode=0) at /usr/src/sys/amd64/amd64/trap.c:765
#7 0xffffffff80766964 in trap (frame=0xfffffe00d74d7cd0) at
/usr/src/sys/amd64/amd64/trap.c:441
#8 <signal handler called>
#9 fbt_provide_module_function (lf=0xfffff800020ff000, symindx=30763,
symval=0xfffffe00d74d7e00, opaque=0xfffffe00d74d7e50) at
/usr/src/sys/cddl/dev/fbt/x86/fbt_isa.c:191
#10 0xffffffff804bf8f7 in link_elf_each_function_nameval
(file=0xfffff800020ff000, callback=0xffffffff825cb570
<fbt_provide_module_function>, opaque=0xfffffe00d74d7e50) at
/usr/src/sys/kern/link_elf.c:1513
#11 0xffffffff825ca33e in fbt_provide_module (arg=<optimized out>,
lf=0xfffff800020ff000) at /usr/src/sys/cddl/dev/fbt/fbt.c:204
#12 0xffffffff825ca242 in fbt_linker_file_cb (lf=0xffffffff825cbe45,
arg=0xffffffff812c9541) at /usr/src/sys/cddl/dev/fbt/fbt.c:1103
#13 0xffffffff8046d772 in linker_file_foreach
(predicate=0xffffffff825ca230 <fbt_linker_file_cb>, context=0x0) at
/usr/src/sys/kern/kern_linker.c:594
#14 0xffffffff8046cb58 in linker_file_sysinit (lf=0xfffff80002a5da00) at
/usr/src/sys/kern/kern_linker.c:236
#15 linker_load_file (filename=<optimized out>, result=<optimized out>)
at /usr/src/sys/kern/kern_linker.c:462
#16 linker_load_module (kldname=<optimized out>,
modname=0xffffffff81d792ae "fbt", parent=<optimized out>,
verinfo=<optimized out>, lfpp=0x0) at
/usr/src/sys/kern/kern_linker.c:2110
#17 0xffffffff8046f1bd in linker_load_dependencies
(lf=0xfffff8002389a400) at /usr/src/sys/kern/kern_linker.c:2200
#18 0xffffffff80797f3e in link_elf_load_file (cls=<optimized out>,
filename=0xfffff80003d592c0 "/boot/kernel/dtraceall.ko",
result=0xfffffe00d74d8898) at /usr/src/sys/kern/link_elf_obj.c:1010
#19 0xffffffff8046c96f in LINKER_LOAD_FILE (cls=0xffffffff80acccc0
<link_elf_class>, filename=<optimized out>, result=0x0) at
./linker_if.h:180
#20 linker_load_file (filename=<optimized out>, result=<optimized out>)
at /usr/src/sys/kern/kern_linker.c:447
#21 linker_load_module (kldname=<optimized out>,
modname=0xfffff800231a7800 "dtraceall", parent=<optimized out>,
verinfo=<optimized out>, lfpp=0xfffffe00d74d8a38) at
/usr/src/sys/kern/kern_linker.c:2110
#22 0xffffffff8046e297 in kern_kldload (td=0xfffff80114df9000,
file=<optimized out>, fileid=0xfffffe00d74d8a74) at
/usr/src/sys/kern/kern_linker.c:1089
#23 0xffffffff8046e35b in sys_kldload (td=0xfffff80114df9000,
uap=<optimized out>) at /usr/src/sys/kern/kern_linker.c:1115
#24 0xffffffff80767ddc in syscallenter (td=0xfffff80114df9000) at
/usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:135
#25 amd64_syscall (td=0xfffff80114df9000, traced=0) at
/usr/src/sys/amd64/amd64/trap.c:1166
#26 <signal handler called>
#27 0x00000008002de43a in ?? ()
Backtrace stopped: Cannot access memory at address 0x7fffffffe658
(kgdb) fr 9
#9 fbt_provide_module_function (lf=0xfffff800020ff000, symindx=30763,
symval=0xfffffe00d74d7e00, opaque=0xfffffe00d74d7e50) at
/usr/src/sys/cddl/dev/fbt/x86/fbt_isa.c:191
191 if (*instr == FBT_PUSHL_EBP)
(kgdb) print *lf
$1 = {ops = 0xfffff800020f6000, refs = 202, userrefs = 1, flags = 1,
link = {tqe_next = 0xfffff800020fec00, tqe_prev = 0xffffffff80c767d0
<linker_files>}, filename = 0xfffff80002101030 "kernel",
pathname = 0xfffff80002104080 "/boot/kernel/kernel", id = 1, address =
0xffffffff80200000 "\177ELF\002\001\001\t", size = 17612816, ctors_addr
= 0x0, ctors_size = 0, ndeps = 0, deps = 0x0, common = {stqh_first =
0x0,
stqh_last = 0xfffff800020ff070}, modules = {tqh_first =
0xfffff800020e5800, tqh_last = 0xfffff80002116790}, loaded = {tqe_next =
0x0, tqe_prev = 0x0}, loadcnt = 1, nenabled = 0, fbt_nentries = 25062}
(kgdb)
--
Larry Rosenman http://people.freebsd.org/~ler
Phone: +1 214-642-9640 E-Mail: l...@freebsd.org
US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106
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