From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] validateaddress
Date: Tue, 11 Aug 2009 08:27:32 -0700 [thread overview]
Message-ID: <dd6fe68a0908110827t5b32ef44r2b8f3645ae8f12de@mail.gmail.com> (raw)
In-Reply-To: <7ED1969C-3B1B-4FE4-8E2D-5B486E636E26@ar.aichi-u.ac.jp>
acid pid
bpset(strcmp)
loop 1,20 do { cont(); print("strcmp '", *(*strcmp:s1\s), "' '",
*(*strcmp:s2\s), "'\n"); }
bpdel(strcmp)
also
bpset(klook)
cont();
# wait a while, see if you hit the breakpoint, probably not
DEL (to stop acid if it didn't hit the breakpoint)
bpdel(klook)
if you do hit the klook breakpoint then try
the same sequence but with yyparse instead
of klook.
the goal is to find some function that isn't being
repeatedly called. that helps narrow down the
source of the infinite loop to code inside that
function or the ones it calls.
russ
next prev parent reply other threads:[~2009-08-11 15:27 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-10 6:11 Kenji Arisawa
2009-08-10 17:13 ` erik quanstrom
2009-08-11 3:57 ` Kenji Arisawa
2009-08-11 4:07 ` erik quanstrom
2009-08-11 5:26 ` Kenji Arisawa
2009-08-11 15:27 ` Russ Cox [this message]
2009-08-12 6:48 ` Kenji Arisawa
2009-08-12 14:59 ` Russ Cox
2009-08-13 1:39 ` Kenji Arisawa
2009-08-13 2:15 ` Russ Cox
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