dhcpcd-discuss

 Will binary without debugging symbols + matched core help?
It still didn't dumped core when the binary hopefully had debugging symbols.
     On Sunday, October 13, 2019, 7:39:14 PM GMT+1, Roy Marples <roy@xxxxxxxxxxxx> wrote:  
 
 The binary needs to match the core, you are correct.

Do you still have the old binary and core? If so, mail them privately to 
me please.

Roy

On 13/10/2019 19:24, Ron Varburg wrote:
> For the last few experiments, possibly all with debugging symbols on, it 
> didn't dump core.
> I will report when it happen again. I am still not sure I can backtrace 
> with debugging symbols.
> I assume gdb is unable to backtrace with debugging symbols when 
> executable newer the core is expected.
> On Sunday, October 13, 2019, 10:40:25 AM GMT+1, Roy Marples 
> <roy@xxxxxxxxxxxx> wrote:
> 
> 
> ./configure --debug
> make clean
> make
> 
> Should be enough.
> You can use `make proginstall` to just install the debug dhcpcd binary.
> Ensure that the paths match the system or package though otherwise it
> will use files in different locations.
> 
> Roy
> 
> On 13/10/2019 01:10, Ron Varburg wrote:
>  > I can try getting a backtrace with debugging symbols.
>  > To start with, gdb tells me `No debugging symbols found', even though
>  > the executable is supposedly not stripped.
>  > Am I right cc ... -DNDEBUG ... means No DEBUG?
>  > Am I right I will better some how arrange a -g for both CFLAGS and 
> LDFLAGS?
>  > On Saturday, October 12, 2019, 11:06:27 PM GMT+1, Roy Marples
>  > <roy@xxxxxxxxxxxx <mailto:roy@xxxxxxxxxxxx>> wrote:
>  >
>  >
>  > On 12/10/2019 21:46, Ron Varburg wrote:
>  >
>  >  > 7.2.2 seemed to worked well.
>  >  > After upgrading from 7.2.2 to 8.0.6, without any other version in
>  > between, 8.0.6 duped core.
>  >  >          Oct 11 08:06:43
>  >  >          #0  0x00005605aa8134f4 ipv6_handleifa (dhcpcd)
>  >  >          #1  0x00005605aa7f8dad if_learnaddrs (dhcpcd)
>  >  >          #2  0x00005605aa7f56bf dhcpcd_handleinterface (dhcpcd)
>  >  >          #3  0x00007fef53692381 n/a (udev.so)
>  >  >          #4  0x00005605aa7f733b eloop_start (dhcpcd)
>  >  >          #5  0x00005605aa7f1cff main (dhcpcd)
>  >  >          #6  0x00007fef534d4153 __libc_start_main (libc.so.6)
>  >  >          #7  0x00005605aa7f240e _start (dhcpcd)
>  >  > I reverted back to 7.2.2, which worked.
>  >  > Then I upgraded 7.2.2 to 8.1.0. After the 1st reboot, it seemed to 
> work.
>  >  > After a 2nd reboot, 8.1.0 dumped core.
>  >  >          Oct 12 19:15:35
>  >  >          Looks to me essentially the same dump.
>  >  >          That is, the same symbols as before, with the same order.
>  >  >          But at different memory addresses.
>  >  > After a 3rd reboot, 8.1.0 seems to work.
>  >  > This message is sent after the 3rd reboot.
>  >
>  >
>  > Can you get a backtrace with debugging symbols please?
>  >
>  > Roy
>  >
>  >