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Re: [Pnet-developers] pnet on NetBSD2.0
From: |
Gopal V |
Subject: |
Re: [Pnet-developers] pnet on NetBSD2.0 |
Date: |
Thu, 18 Nov 2004 07:32:50 -0800 (PST) |
Hi,
> 0x080dd876 in GC_find_limit (p=0x810e590 "????",
> up=0) at os_dep.c:812
> 812 GC_noop1((word)(*result));
Hmm.. apparently that seems to be a a *valid segfault*
based check for upper limit of memory ?.
Btw, slightly offtopic. But a segfault is not always
a cause of worry in pnet when debugging . We have a
NULL check elimination scheme which uses platform
signals to pick up NULL pointers without the overhead
of an if() check & branch :) . If the program is well
designed this is faster as the exception should be for
"exceptional" cases .
> (gdb) bt
> #0 0x080dd876 in GC_find_limit (p=0x810e590 "????",
> up=0) at os_dep.c:812
It's a good idea to continue until it doesn't go any
further before a BT :)
Gopal
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Re: [Pnet-developers] pnet on NetBSD2.0, Gopal V, 2004/11/18