dhcpcd-discuss

Maybe. Can't hurt for me to take a look.

On 13/10/2019 20:01, Ron Varburg wrote:
> 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 <mailto: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> 
> <mailto: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
>  >  >
>  >  >