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Date: Fri, 17 Oct 1997 16:36:47 -0500
From: Jonathan Lemon <jlemon@americantv.com>
To: Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE>
Cc: Mike Smith <mike@smith.net.au>, freebsd-emulation@FreeBSD.ORG
Subject: Re: some observations with xmaple (Maple V4 R5, Linux version)
References: <199710150719.JAA10735@gil.physik.rwth-aachen.de> <199710150826.RAA02352@word.smith.net.au> <19971017154439.55593@gil.physik.rwth-aachen.de>
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In-Reply-To: <19971017154439.55593@gil.physik.rwth-aachen.de>; from Christoph Kukulies on Oct 10, 1997 at 03:44:39PM +0200
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On Oct 10, 1997 at 03:44:39PM +0200, Christoph Kukulies wrote:
> I'm including a kdump excerpt hoping that someone knowing of the
> subtleties of old.receiv ..

Note that ktrace just records the syscall numbers, and that kdump
prints these out using a BSD syscall mapping.  This means that the
names printed out for a Linux program are completely bogus.

>  19073 xmaplev4 CALL  old.recv(0x1,0xefbfd2d4)
>  19073 xmaplev4 RET   old.recv 3
>  19073 xmaplev4 CALL  old.recv(0xe,0xefbfd2c4)
>  19073 xmaplev4 RET   old.recv -1 errno -22 Unknown error: -22

old.recv == syscall #102 == linux_socketcall.

There are only 4 sub-routines that can return EINVAL (-22):
  linux_socket, linux_socketpair, linux_setsockopt, linux_getsockopt.

I'd suggest modifying these routines (in linux/linux_socket.c) to 
print out the parameters that is causing it to crash.

(Assuming, of course, the above error return is causing the crash)
--
Jonathan