Date: Sun, 21 Apr 2002 22:47:19 -0400 (EDT) From: Robert Watson <rwatson@FreeBSD.org> To: Joshua Goodall <joshua@roughtrade.net> Cc: freebsd-hackers@FreeBSD.org Subject: Re: kernel backtrace of sleeping processes Message-ID: <Pine.NEB.3.96L.1020421224638.91313H-100000@fledge.watson.org> In-Reply-To: <20020422020902.GB86692@roughtrade.net>
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On Mon, 22 Apr 2002, Joshua Goodall wrote: > In a remote kgdb, I have struct proc * for several processes that > are sleeping and I want the kernel backtraces for them. To illustrate: > > (kgdb) set var $p201 = allproc.lh_first->p_list.le_next->p_list.le_next > (kgdb) print $p201->p_pid > $12 = 201 > (kgdb) print $p201->p_xxthread.td_wmesg > $13 = 0xc0247174 "select" > > Now I want a (kernel) backtrace on this; given that I have $p201, > how can I select the appropriate stack frame? > > (recent -current on i386) In recent -CURRENT, you can just use trace <pid> or trace <addressofstack> I have to say that since that since this feature was introduced, life has become a *lot* easier :-). Robert N M Watson FreeBSD Core Team, TrustedBSD Project robert@fledge.watson.org NAI Labs, Safeport Network Services To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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