Date: 31 Dec 2008 15:11:39 +0100 From: "Arno J. Klaassen" <arno@heho.snv.jussieu.fr> To: Roman Divacky <rdivacky@freebsd.org> Cc: emulation@freebsd.org Subject: Re: 8-current: linux_dist-gentoo-stage3 wonn't bootstrap Message-ID: <wphc4kxwmc.fsf@heho.snv.jussieu.fr> In-Reply-To: <wpk59j48jf.fsf_-_@heho.snv.jussieu.fr> References: <wp3ag9s5hy.fsf@heho.snv.jussieu.fr> <20081227220645.GA13295@freebsd.org> <wpmyeg2yjg.fsf@heho.snv.jussieu.fr> <20081228175745.GA56640@freebsd.org> <wpmyegdr0v.fsf@heho.snv.jussieu.fr> <20081228202526.GA74948@freebsd.org> <wpy6y0f32m.fsf@heho.snv.jussieu.fr> <20081228211505.GA80323@freebsd.org> <wpocyw9dt7.fsf@heho.snv.jussieu.fr> <20081228214438.GA83007@freebsd.org> <wpk59j48jf.fsf_-_@heho.snv.jussieu.fr>
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"Arno J. Klaassen" <arno@heho.snv.jussieu.fr> writes: > [NB, subject changed; this bug is produce now on -current ] > > Roman Divacky <rdivacky@freebsd.org> writes: > > > On Sun, Dec 28, 2008 at 10:42:44PM +0100, Arno J. Klaassen wrote: > > > Roman Divacky <rdivacky@freebsd.org> writes: > > > > > > > On Sun, Dec 28, 2008 at 09:38:09PM +0100, Arno J. Klaassen wrote: > > > > > > > > > > Roman Divacky <rdivacky@freebsd.org> writes: > > > > > > > > > > > > > > > > > > > > > does this patch fix the hang? > > > > > > > > > > > > > > > > www.vlakno.cz/~rdivacky/linprocfs.patch > > > > > > > > > > > > > > nope, though it does fix the lock order reversal > > > > > > > (I attach the slightly modified patch for linprocfs.c to > > > > > > > make it compile) > > > > > > > > > > > > the LOR is probably harmless.... dont bother with that patch :) > > > > > > > > > > > > > funny enough, it again hangs in compiling gconv_simple.c > > > > > > > with cc1 in pipewr state and no assembler showing up in > > > > > > > ps(1) after having succesfully compiled a bunch of other > > > > > > > files. > > > > > > > > > > > > you mean native cc1? or linux one? > > > > > > > > > > linux : > > > > > > > > > > # ps axuww | fgrep 1129 > > > > > root 11290 0.0 0.1 2296 1432 0 D 8:29PM 0:00.01 [i486-pc-linux-gnu-g] > > > > > root 11291 0.0 0.8 18152 16808 0 I 8:29PM 0:00.96 [cc1] > > > > > > > > > > and no trace of gconv_simple.o > > > > > > > > > > last line of log-file is : > > > > > > > > > > i486-pc-linux-gnu-gcc gconv_simple.c -c -std=gnu99 -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants -fno-strict-aliasing -mtune=i686 -pipe -Wstrict-prototypes -mpreferred-stack-boundary=2 -I../include -I/var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl/iconv -I/var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl -I../sysdeps/i386/elf -I../nptl/sysdeps/unix/sysv/linux/i386/i486 -I../nptl/sysdeps/unix/sysv/linux/i386 -I../sysdeps/unix/sysv/linux/i386 -I../nptl/sysdeps/unix/sysv/linux -I../nptl/sysdeps/pthread -I../sysdeps/pthread -I../ports/sysdeps/unix/sysv/linux -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman -I../sysdeps/unix/inet -I../ports/sysdeps/unix/sysv/i386 -I../sysdeps/unix/sysv/i386 -I../nptl/sysdeps/unix/sysv -I../ports/sysdeps/unix/sysv -I../sysdeps/unix/sysv -I../sysdeps/unix/i386 -I../nptl/sysdeps/unix -I../ports/sysdeps/unix -I../sysdep! s/! > unix! > > > -I.! > > > > > ./sysdeps/posix -I../nptl/sysdeps/i386/i486 -I../sysdeps/i386/i486 -I../sysdeps/i386/fpu -I../nptl/sysdeps/i386 -I../sysdeps/i386 -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/ldbl-96 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic/elf -I../sysdeps/generic -I../nptl -I../ports -I.. -I../libio -I. -nostdinc -isystem /usr/lib/gcc/i486-pc-linux-gnu/4.1.2/include -isystem /usr/lib/gcc/i486-pc-linux-gnu/4.1.2/include-fixed -isystem /usr/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h -o /var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl/iconv/gconv_simple.o -MD -MP -MF /var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl/iconv/gconv_simple.o.dt -MT /var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl/iconv/gconv_simple.o > > > > > > > > > > > > > > > ++, Arno > > > > > > > > > > > > > can you break into DDB and extract a backtrace of the stuck process? > > > > > > OK, I'll hook up a serconsole tomorrow .. > > > > > > for now some good old quick n dirty copy paste by pen and paper : > > > > > > 11290 (i486-pc-linux-gnu-gcc] > > > > > > sched_switch > > > mi_switch > > > sleepq_switch > > > sleepq_wait > > > _sleep > > > linux_vfork > > > ia32_syscall > > > Xint0x80_syscall > > > syscall (190, Linux ELF32, linux_vfork) > > > > > > > > > 11291 (cc1) > > > > > > sched_switch > > > mi_switch > > > sleepq_switch > > > sleepq_catch_signals > > > sleepq_wait_sig > > > _sleep > > > pipe_write > > > dofilewrite > > > kern_writev > > > write > > > ia32_syscall > > > Xint80_syscall > > > syscall (4, Linux ELF32, write) > > > > I dont see anything obvious.. can you do "ps axl" and see what the MWCHAN is? > > that might shed some light to this... > > bon, in fact when I launce the command by hand adding a '-v ' to gcc, output > says : > > /usr/libexec/gcc/i486-pc-linux-gnu/4.1.2/cc1 ... | /usr/lib/gcc/i486-pc-linux-gnu/4.1.2/../../../../i486-pc-linux-gnu/bin/as -V -Qy -o /var/tmp/portage/sys-libs/glibc-2.6.1/work/build-default-i486-pc-linux-gnu-nptl/iconv/gconv_simple.o - > > > but, cc1 is stuck in 'pipewr' and no .../bin/as process is running (any longer) > nor the file .../gconv_simple.o created I investigated this a bit more (still chrooted to /usr/local/gentoo-stage3) : i486-pc-linux-gnu-gcc gconv_open.c -c : OK i486-pc-linux-gnu-gcc gconv_open.c -c -pipe : OK i486-pc-linux-gnu-gcc gconv_simple.c -c : OK i486-pc-linux-gnu-gcc gconv_simple.c -c -pipe : pipe to as(1) fails I tried to play with kern.ipc.maxpipekva (I vaguely remember that was necessary for linux testsuites) pumping it up to "536608768", but no difference. If someone has another suggestion? Thanx, Arno
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