user-mode-linux-user

[uml-user] kernel debugging

[Young K <you...@ho...>]

Hi,

i was using gdb to debug uml kernel. but, after i set a breakpoint on 
tuntap_write(), when i send a network packet to host, uml goes to panic with 
these error messages

(gdb) b tuntap_write
Breakpoint 1 at 0xa00c4daf: file tuntap_kern.c, line 59.
(gdb) c
Continuing.
Kernel panic: Kernel mode signal 5
In interrupt handler - not syncing

do you have any idea?

thank you,

-Young

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[User-mode-linux-user] kernel debugging

[Alexander G. <ag...@ag...>]

Yes, I read docs, but :-)
When I'm set breakpoint on sys_mount for example I've got:

Program received signal SIGTRAP, Trace/breakpoint trap.
0x100000f0 in _start ()
(gdb)c

[bla-bla-bla]

Activating swap...
Kernel panic: syscall == -1, errno = 0

Thank you.

ps. 2.4.0-test5.

With best regards, Alexander
AGAVA Software Company, http://www.agava.com, 02.08.2000, 13:51