Date: Sat, 7 Dec 2013 19:30:44 +0100 From: Peter Holm <peter@holm.cc> To: =?iso-8859-1?Q?=D6zkan?= KIRIK <ozkan.kirik@gmail.com> Cc: Konstantin Belousov <kostikbel@gmail.com>, freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: stable/10 r258317 - UFS lock problem Message-ID: <20131207183044.GA19655@x2.osted.lan> In-Reply-To: <CAAcX-AHbwsSZHREL-RpFFojMWEwLDR0sCSkPTddmZMPbuV0E5A@mail.gmail.com> References: <CAAcX-AHM6WXmWM1aTmaRETJFSMvAGqXsrCHo9a3nxhU9%2BHQhSQ@mail.gmail.com> <20131206201329.GK59496@kib.kiev.ua> <CAAcX-AHbwsSZHREL-RpFFojMWEwLDR0sCSkPTddmZMPbuV0E5A@mail.gmail.com>
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On Sat, Dec 07, 2013 at 08:24:32AM +0200, Özkan KIRIK wrote: > Hi, > > I'm trying to compile a debug kernel with these options : > > makeoptions DEBUG=-g > options INVARIANTS > options INVARIANT_SUPPORT > options WITNESS > options DEBUG_LOCKS > options DEBUG_VFS_LOCKS > options DIAGNOSTIC > > While compiling; compilations fails due to this error : > /usr/src/sys/kern/subr_vmem.c:1357:1: error: unused function 'vmem_dump' > [-Werror, -Wunused-function] > Did you forget "options DDB" ? - Peter > > I'll comment out this function and recompiled kernel. > Now, while booting, kernel panics. Error line is below; KDB stack > backtrace is attached as PNG screenshot. > > "panic: mtx_lock_spin: recursed on non-recursive mutex cnput_mtx @ > /usr/src/sys/kern/kern_cons.c:500" > > I think, i hit an other bug. > > Best wishes, > > Ozkan KIRIK > ePati Information Technologies > http://www.epati.com.tr/ > > > On Fri, Dec 6, 2013 at 10:13 PM, Konstantin Belousov <kostikbel@gmail.com>wrote: > > > On Fri, Dec 06, 2013 at 08:10:55PM +0200, ?zkan KIRIK wrote: > > > Hi, > > > > > > I am using FreeBSD 10.0-BETA3 r258317 GENERIC kernel. > > > > > > I run "portsnap fetch extract". > > > While extracting files, extracting operation hangs, and i cant kill > > process. > > > > > > Output of : "ps ax | grep D+" ( uninterruptable process list ) > > > % ps ax | grep D+ > > > 28933 0 D+ 0:00.01 tar -xz --numeric-owner -f > > > > > /var/db/portsnap/files/77d41f10d2832f8450e4e02a4db5c0a6131c97d15076ed0c76e761c9ce58338d.gz > > > -C /usr/ports/emulators/qemu/ (bsdtar) > > > 29051 1 S+ 0:00.00 grep D+ > > > % > > > > > > > > > Because of D flag, process cannot be interrupted even by SIGKILL. > > > I cannot remove usr/ports folder while this process on D+ state. > > > If I run rm -r /usr/ports, rm process is flagged as D+ also. > > > > > > I tested this situation on both vmware workstation and different real > > > hardware installations. ( Sun Fire X4150, HP DL380G4, Sun X3 servers. ) > > > > > > Problem is repeatable. If you install FreeBSD on ZFS root, problem > > doesn't > > > occur. > > > > > > > > > # mount > > > /dev/da0p2 on / (ufs, local, journaled soft-updates) > > > devfs on /dev (devfs, local, multilabel) > > > > See > > > > http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-deadlocks.html > > > _______________________________________________
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