Re: kgdb 2.3 hangs

thanks for the hint.

now i deselect the "console message over kgdb" and use this 'set debug
remote 1', the boot process is good.


now is another problem.

it hangs when loading module.

when load a module using insmod, target box hangs there.

kgdb shows

packet instead of Ack, ignoring it

Send packet.. putpkt: write failed. input/output error.
...

if i press c, then it repeat the msg.

before this. shows

bad checksum, reply contain invaid hex digit 36...


i can try to dump all screen output if you think that is useful.


ming


On Thu, 2006-01-26 at 15:23 -0800, Jim Blandy wrote:
> On 1/26/06, Ming Zhang <mingz@xxxxxxxxxxx> wrote:
> > try to run 2.6.13 and kgdb 2.3. target box is a dual opteron while i
> > only compile as 32bit on a 32bit centos installation.
> >
> > i tried various kernel configurations. like SMP. UP. different preempt
> > options. tried 115200 or 38400. but it always hangs after this.
> >
> >
> > (gdb) set remotebaud 38400
> > (gdb) target remote /dev/ttyS0
> > Remote debugging using /dev/ttyS0
> > breakpoint () at kernel/kgdb.c:1776
> > 1776            atomic_set(&kgdb_setting_breakpoint, 0);
> > Reply contains invalid hex digit 36
> > (gdb) c
> > Continuing.
> > Reply contains invalid hex digit 36
> > (gdb) c
> > Continuing.
> >
> > any idea on where to start? thanks!
> 
> I'm not the most experienced KGDB person here, but I would start by
> saying "set debug remote 1" before the "target remote" command, so you
> can see what the stub and GDB are actually saying to each other.



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