Date: Sun, 12 Oct 2003 10:52:36 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: John-Mark Gurney <gurney_j@efn.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern sys_pipe.c Message-ID: <14225.1065948756@critter.freebsd.dk> In-Reply-To: Your message of "Sun, 12 Oct 2003 01:13:23 PDT." <20031012081323.GL533@funkthat.com>
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In message <20031012081323.GL533@funkthat.com>, John-Mark Gurney writes: >Poul-Henning Kamp wrote this message on Sun, Oct 12, 2003 at 10:05 +0200: >> In message <200310120706.h9C763U6085132@repoman.freebsd.org>, John-Mark Gurney >> writes: >> >jmg 2003/10/12 00:06:03 PDT >> > >> > FreeBSD src repository >> > >> > Modified files: >> > sys/kern sys_pipe.c >> > Log: >> > fix a problem referencing free'd memory. This is only a problem for >> > kqueue write events on a socket and you regularly create tons of pipes >> > which overwrites the structure causing a panic when removing the knote >> > from the list. If the peer has gone away (and it's a write knote), then >> > don't bother trying to remove the knote from the list. >> >> Does this fix make(1) compiled with -DUSE_KQUEUE ? > >Hmmm.. After looking at the make source, no, it probably doesn't. The >bug this fixed was limited to EVFILT_WRITE events being registered on >pipes, and make(1) doesn't use EVFILT_WRITE. > >Do we have a back trace on the problem with make? Just do a make -j 12 buildworld and your kernel will explode. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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