On Thu, 30 Jun 2005, Kris Kennaway wrote:
> On Thu, Jun 30, 2005 at 04:00:47PM -0400, Rob Watt wrote:
>
> > #7 0x80400c0b in calltrap () at
> > /usr/src/sys/amd64/amd64/exception.S:171
> > #8 0xff007c3b00f0 in ?? ()
> > #9 0xff007b78c500 in ?? ()
> > #10 0x0001840f in ?? ()
> > #11 0x in ?? ()
> > #12 0x in ?? ()
>
> [..]
>
> All these bogus stack frames can be caused by having compiled the
> kernel with -O2 instead of -O. Is this the case?
It seems the default for amd64 is to compile with:
COPTFLAGS="-O2 -frename-registers -pipe"
I changed the -O2 to -O, and there are still a large number of bogus stack
frames (although there are more readable frames then before):
#0 doadump () at pcpu.h:167
#1 0x in ?? ()
#2 0x802aca23 in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:410
#3 0x802ace8b in panic (fmt=0xff007b78c500 "\u\022y{") at
/usr/src/sys/kern/kern_shutdown.c:566
#4 0x804275bc in trap_fatal (frame=0xff007b78c500,
eva=18446742976269456104)
at /usr/src/sys/amd64/amd64/trap.c:639
#5 0x80427220 in trap_pfault (frame=0xb1c129c0,
usermode=0) at /usr/src/sys/amd64/amd64/trap.c:562
#6 0x80426e99 in trap (frame=
{tf_rdi = -1097427386128, tf_rsi = -1097440115456, tf_rdx = 100956,
tf_rcx = 0, tf_r8 = 0, tf_r9 = 0, tf_rax = 100956, tf_rbx = 0, tf_rbp =
-1098510893056, tf_r10 = 30, tf_r11 = 29, tf_r12 = -1097364252160, tf_r13
= -2143265920, tf_r14 = 0, tf_r15 = -2141262160, tf_trapno = 12, tf_addr =
136, tf_flags = 0, tf_err = 0, tf_rip = -2144628916, tf_cs = 8, tf_rflags
= 66050, tf_rsp = -1312740736, tf_ss = 16}) at
/usr/src/sys/amd64/amd64/trap.c:341
#7 0x80413c5b in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:171
#8 0xff007c3b00f0 in ?? ()
#9 0xff007b78c500 in ?? ()
#10 0x00018a5c in ?? ()
#11 0x in ?? ()
#12 0x in ?? ()
#13 0x in ?? ()
#14 0x00018a5c in ?? ()
#15 0x in ?? ()
#16 0xff003ba6 in ?? ()
#17 0x001e in ?? ()
#18 0x001d in ?? ()
#19 0xff007ffe5a00 in ?? ()
#20 0x80405b80 in vm_pageout_page_stats () at
/usr/src/sys/vm/vm_pageout.c:1350
#21 0x in ?? ()
#22 0x805eeeb0 in sysctl___kern_sched_runq_fuzz ()
#23 0x000c in ?? ()
#24 0x0088 in ?? ()
#25 0x in ?? ()
#26 0x in ?? ()
#27 0x802b8f4c in thread_fini (mem=0x0, size=0) at
/usr/src/sys/kern/kern_thread.c:271
#28 0x0010 in ?? ()
#29 0xff007ffe4620 in ?? ()
#30 0x in ?? ()
#31 0xff003ba60f98 in ?? ()
#32 0x80407a41 in zone_drain (zone=0x10202) at
/usr/src/sys/vm/uma_core.c:749
#33 0x80408ed6 in zone_foreach (zfunc=0x80407810
) at /usr/src/sys/vm/uma_core.c:1494
#34 0x8040acb5 in uma_reclaim () at
/usr/src/sys/vm/uma_core.c:2623
#35 0x80404836 in vm_pageout_scan (pass=0) at
/usr/src/sys/vm/vm_pageout.c:674
#36 0x80405f1e in vm_pageout () at
/usr/src/sys/vm/vm_pageout.c:1476
#37 0x80292e4b in fork_exit (callout=0x80405b80
, arg=0x0, frame=0xb1c12c50)
at /usr/src/sys/kern/kern_fork.c:791
#38 0x80413e5e in fork_trampoline () at
/usr/src/sys/amd64/amd64/exception.S:296
#39 0x in ?? ()
#40 0x in ?? ()
#41 0x0001 in ?? ()
#42 0x in ?? ()
#43 0x in ?? ()
#44 0x in ?? ()
#45 0x in ?? ()
#46 0x in ?? ()
#47 0x in ?? ()
#48 0x in ?? ()
#49 0x in ?? ()
#50 0x in ?? ()
#51 0x in ?? ()
#52 0x in ?? ()
#53 0x in ?? ()
#54 0x in ?? ()
#55 0x in ?? ()
#56 0x in ?? ()
#57 0x in ?? ()
#58 0x in ?? ()
#59 0x in ?? ()
#60 0x in ?? ()
#61 0x in ?? ()
#62 0x in ?? ()
#63 0x in ?? ()
#64 0x in ?? ()
#65 0x in ?? ()
#66 0x in ?? ()
#67 0x in ?? ()
#68 0x in ?? ()
#69 0x in ?? ()
#70 0x in ?? ()
#71 0x0081e000 in ?? ()
#72 0x806457f4 in vm_page_max_wired ()
#73 0x in ?? ()
#74 0x0001 in ?? ()
#75 0xff007b7912e8 in ?? ()
#76 0xff007b7f5000 in ?? ()
#77 0xb1c12ae8 in ?? ()
#78 0xff007b78c500 in ?? ()
#79 0x802c0c84 in sched_switch (td=0x0, newtd=0x0, flags=1) at
/usr/src/sys/kern/sched_4bsd.c:881
...
-
Rob Watt
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