Date: Mon, 11 Sep 2006 20:59:53 +0200 From: Alexander Leidinger <Alexander@Leidinger.net> To: Pawel Jakub Dawidek <pjd@freebsd.org> Cc: rwatson@freebsd.org, current@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: panic: System call old.recv returning with 1 locks held Message-ID: <20060911205953.78b2e31a@Magellan.Leidinger.net> In-Reply-To: <20060911180205.GA44856@garage.freebsd.pl> References: <20060910194536.1b699733@Magellan.Leidinger.net> <20060910184359.GA7152@xor.obsecurity.org> <20060910230003.28fbc780@Magellan.Leidinger.net> <20060910211556.GA9924@xor.obsecurity.org> <20060911100117.GA92022@garage.freebsd.pl> <20060911194740.0c671c28@Magellan.Leidinger.net> <20060911180205.GA44856@garage.freebsd.pl>
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Quoting Pawel Jakub Dawidek <pjd@FreeBSD.org> (Mon, 11 Sep 2006 20:02:05 +0200): > On Mon, Sep 11, 2006 at 07:47:40PM +0200, Alexander Leidinger wrote: > > Quoting Pawel Jakub Dawidek <pjd@FreeBSD.org> (Mon, 11 Sep 2006 12:01:18 +0200): > > > > > In HEAD (not sure if it was MFCed) jhb@ added code to track number of > > > mutexes/sx-locks acquired/released. So bascially this panic can happen > > > when you leak a lock of any kind. > > > > > > 'show alllocks' has to show them when the kernel (and modules) is > > > compiled with WITNESS. > > > > exclusive sleep mutex so_snd r=0 (0xc2b204c4) locked @ kern/uipc_socket.c:984 > [...] > > Much easier now. > > > How to track this down? > > Try this patch: > > http://people.freebsd.org/~pjd/patches/uipc_socket.c.2.patch Works (send01 runs, but I start a complete test now). Thanks! I'm going ahead and suggest to have at least rev 1.281 of uipc_socket.c in the linuxolator-wiki. Now... anyone up to porting the ltp to FreeBSD (or at least having a look at the testcases and adopting them to our regression test)? BTW: your key is expired. Bye, Alexander. -- The slowest checker is always at the quick-check-out lane. http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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