Re: ntpd wedged by libc?

[AGC <agcarver+netbsd%acarver.net@localhost>]

On 3/10/2012 13:54, AGC wrote:
> On 3/10/2012 12:28, Christos Zoulas wrote:
> > On Mar 10, 11:48am, agcarver+netbsd%acarver.net@localhost (AGC) wrote:
> > -- Subject: Re: ntpd wedged by libc?
> >
> > | On 3/10/2012 00:31, Dave Hart wrote:
> > |> On Sat, Mar 10, 2012 at 07:05, AGC<agcarver+netbsd%acarver.net@localhost> 
> > wrote:
> > |>> snprintf.c:1108: error: expected '=', ',', ';', 'asm' or
> > '__attribute__'
> > |>> before '*' token
> > |>> snprintf.c:1108: error: 'puch' undeclared (first use in this
> > function)
> > |>
> > |> Change line 1108 to:
> > |>
> > |> const unsigned char *puch;
> > |
> > | Made it a little farther this time but still failed:
> > |
> > | ../libntp/libntp.a(snprintf.o): In function `fmtflt':
> > | /usr/src/ntp-dev-4.2.7p259/libntp/snprintf.c:1152: undefined reference
> > | to `dtoa'
> > | /usr/src/ntp-dev-4.2.7p259/libntp/snprintf.c:1152: undefined reference
> > | to `freedtoa'
> > | *** Error code 1
> > -- End of excerpt from AGC
> >
> > Try __dtoa and __freedtoa
>
> That fixed it. printf_dtoa.log has been generated so I'll keep an eye on
> it and see what happens.

Well, that didn't take long:


(gdb) bt
#0  0x103c3430 in .umul () from /usr/lib/libc.so.12
#1  0x103b58fc in __pow5mult_D2A () from /usr/lib/libc.so.12
#2  0x103b5adc in __muldi3 () from /usr/lib/libc.so.12
#3  0x103b5494 in __mult_D2A () from /usr/lib/libc.so.12
#4  0x103b5728 in __pow5mult_D2A () from /usr/lib/libc.so.12
#5  0x103a8138 in __dtoa () from /usr/lib/libc.so.12
#6  0x00067a04 in fmtflt (str=0xefffe450 " 109.76 97.75 98.77 97.79 
103.00 97.72 98.15", len=0xefffe364,
    size=184, fvalue=-4.2612301185727119, width=0, precision=2, 
flags=0, overflow=0xefffe360) at snprintf.c:1152
#7  0x0006898c in rpl_vsnprintf (str=0xefffe450 " 109.76 97.75 98.77 
97.79 103.00 97.72 98.15", size=184,
    format=<value optimized out>, args=0xefffe438) at snprintf.c:851
#8  0x00068de4 in rpl_snprintf (str=0xefffe450 " 109.76 97.75 98.77 
97.79 103.00 97.72 98.15", size=184,
    format=0x8a260 " %.2f") at snprintf.c:1583
#9  0x000252a0 in ctl_putarray (tag=<value optimized out>, arr=0xb3128, 
start=2) at ntp_control.c:1673
#10 0x000262e8 in ctl_putpeer (id=30, p=0xb2fa0) at ntp_control.c:2506
#11 0x0002b068 in read_variables (rbufp=0x10528000, restrict_mask=0) at 
ntp_control.c:3012
#12 0x00028a44 in process_control (rbufp=0x10528000, restrict_mask=0) at 
ntp_control.c:1123
#13 0x00038744 in receive (rbufp=0x10528000) at ntp_proto.c:432
#14 0x00023410 in ntpdmain (argc=0, argv=0xefffebdc) at ntpd.c:1069
#15 0x000138a4 in ___start ()
#16 0x000137dc in _start ()

The printf_dota.log file is about 2.2 MB located here:

http://acarver.net/ntpd/printf_dtoa.log