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Message-ID: <AANLkTinbD+32635CYBhFGVmCrj8YxfjbR4dfSGiTQOsw@mail.gmail.com>
Date: Tue, 2 Nov 2010 16:30:52 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Al Viro <viro@...iv.linux.org.uk>
Cc: Andreas Schwab <schwab@...ux-m68k.org>,
Thorsten Glaser <tg@...bsd.de>, linux-kernel@...r.kernel.org,
linux-m68k@...r.kernel.org
Subject: Re: aranym bug, manifests as "ida_remove called for id=13" on recent kernels
On Mon, Oct 11, 2010 at 16:24, Al Viro <viro@...iv.linux.org.uk> wrote:
> BTW, any comments on signal patchset? Seems to work here, including the
> stack expansion fixes, but that's on aranym. I'll try to resurrect the
> real hardware, but that may take a while. If somebody could give it a beating
> in the meanwhile...
I tried it on my Amiga 4000/040.
Without your patches, gdb gets stuck in state D+ when reaching a breakpoint:
| cassandra:~# gdb /tmp/hello
| GNU gdb 6.4.90-debian
| Copyright (C) 2006 Free Software Foundation, Inc.
| GDB is free software, covered by the GNU General Public License, and you are
| welcome to change it and/or distribute copies of it under certain conditions.
| Type "show copying" to see the conditions.
| There is absolutely no warranty for GDB. Type "show warranty" for details.
| This GDB was configured as "m68k-linux-gnu"...Using host
libthread_db library "/lib/libthread_db.so.1".
|
| (gdb) break main
| Breakpoint 1 at 0x800003fc: file /home/geert/hello.c, line 6.
| (gdb) run
| Starting program: /tmp/hello
|
| Breakpoint 1, main (argc=1, argv=0xefbeedb4) at /home/geert/hello.c:6
With your patches, it works a bit better:
| cassandra:~# gdb /tmp/hello
| GNU gdb 6.4.90-debian
| Copyright (C) 2006 Free Software Foundation, Inc.
| GDB is free software, covered by the GNU General Public License, and you are
| welcome to change it and/or distribute copies of it under certain conditions.
| Type "show copying" to see the conditions.
| There is absolutely no warranty for GDB. Type "show warranty" for details.
| This GDB was configured as "m68k-linux-gnu"...Using host
libthread_db library "/lib/libthread_db.so.1".
|
| (gdb) break main
| Breakpoint 1 at 0x800003fc: file /home/geert/hello.c, line 6.
| (gdb) run
| Starting program: /tmp/hello
|
| Breakpoint 1, main (argc=1, argv=0xefcc5db4) at /home/geert/hello.c:6
| 6 printf("Hello, world! [C]\n");
| (gdb) cont
| Continuing.
| Hello, world! [C]
|
| Program exited normally.
| (gdb) run
| Starting program: /tmp/hello
|
| Breakpoint 1, main (argc=1, argv=0xef85bdb4) at /home/geert/hello.c:6
| 6 printf("Hello, world! [C]\n");
| (gdb) next
| Hello, world! [C]
After which gdb is stuck in S+, and /tmp/hello in t.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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