Re: building current - signal 6
In article <20160506091115.ga15...@britannica.bec.de>, Joerg Sonnenberger wrote: >On Fri, May 06, 2016 at 03:03:12AM +, Christos Zoulas wrote: >> It is probably because ASLR is making a vmcmd fail. It should be simple to >> build a kernel with DEBUG_EXEC and see what's breaking. > >Setting PAX_ASLR_STACK stopped all random aborts I saw in my bulk build. That would be my guess too :-) christos
Re: building current - signal 6
On Fri, May 06, 2016 at 03:03:12AM +, Christos Zoulas wrote: > It is probably because ASLR is making a vmcmd fail. It should be simple to > build a kernel with DEBUG_EXEC and see what's breaking. Setting PAX_ASLR_STACK stopped all random aborts I saw in my bulk build. Joerg
Re: building current - signal 6
In article <5729be9e.5030...@libero.it>, Riccardo Mottola wrote: >Hi Erik, > > >Erik Fair wrote: >> #define SIGABRT 6 /* abort() */ >> >> See also signal(7) and abort(3). >> >> It would appear that make(1) called abort(3) since rm(1) doesnât >have any direct calls to it that I could find by reading the base >source. Cursory grep through/usr/src/usr.bin/make/* shows possibilities >⦠>> >> Perhaps turning on some make debug options will reveal more. > >I just reissued the command and it worked... like a temporary error >then. Strange. Yes, is is random because ASLR is randomizing. Probably some addresses don't work. It should be easy to test by hacking the random number generator and looking what happens when the value is set at either ends of the range. christoa
Re: building current - signal 6
In article <33d21884-f50f-4933-a887-337520338...@netbsd.org>, Erik Fair wrote: >In /usr/include/sys/signal.h find: > >#define SIGABRT 6 /* abort() */ > >See also signal(7) and abort(3). > >It would appear that make(1) called abort(3) since rm(1) doesnât have >any direct calls to it that I could find by reading the base source. >Cursory grep through /usr/src/usr.bin/make/* shows possibilities ⦠> >Perhaps turning on some make debug options will reveal more. That ain't it, if you ktrace the process, you'll see that there was no signal posted. Instead what's happening is: kern_exec.c:exit1(l, error, SIGABRT); It is probably because ASLR is making a vmcmd fail. It should be simple to build a kernel with DEBUG_EXEC and see what's breaking. christos
Re: building current - signal 6
Transient errors always worry me. Erik > On May 4, 2016, at 02:19, Riccardo Mottola wrote: > > Hi Erik, > > > Erik Fair wrote: >> #define SIGABRT 6 /* abort() */ >> >> See also signal(7) and abort(3). >> >> It would appear that make(1) called abort(3) since rm(1) doesn’t have any >> direct calls to it that I could find by reading the base source. Cursory >> grep through/usr/src/usr.bin/make/* shows possibilities … >> >> Perhaps turning on some make debug options will reveal more. > > I just reissued the command and it worked... like a temporary error then. > Strange. > > Riccardo
Re: building current - signal 6
Hi Erik, Erik Fair wrote: #define SIGABRT 6 /* abort() */ See also signal(7) and abort(3). It would appear that make(1) called abort(3) since rm(1) doesn’t have any direct calls to it that I could find by reading the base source. Cursory grep through/usr/src/usr.bin/make/* shows possibilities … Perhaps turning on some make debug options will reveal more. I just reissued the command and it worked... like a temporary error then. Strange. Riccardo
Re: building current - signal 6
In /usr/include/sys/signal.h find: #define SIGABRT 6 /* abort() */ See also signal(7) and abort(3). It would appear that make(1) called abort(3) since rm(1) doesn’t have any direct calls to it that I could find by reading the base source. Cursory grep through /usr/src/usr.bin/make/* shows possibilities … Perhaps turning on some make debug options will reveal more. Erik Fair > On May 3, 2016, at 16:59, Riccardo Mottola wrote: > > Hi, > > when I build current on amd64, my build fails with: > > #create font-misc-misc/6x12-ISO8859-4.bdf > /usr/src/../obj/external/mit/xorg/tools/ucs2any/ucs2any > /usr/xsrc/external/mit/font-misc-misc/dist/6x12.bdf > /usr/src/../obj/destdir.amd64/usr/X11R7/lib/X11/fonts/util/map-ISO8859-4 > ISO8859-4 > Writing 223 characters into file '6x12-ISO8859-4.bdf'. > #create font-misc-misc/6x12-ISO8859-4.pcf.gz > rm -f 6x12-ISO8859-4.pcf.gz > *** Signal 6 > > Stop. > nbmake[11]: stopped in > /usr/src/external/mit/xorg/share/fonts/misc/font-misc-mis c > > *** Failed target: dependall > *** Failed command: cd > "/usr/src/external/mit/xorg/share/fonts/misc/font-misc-misc"; > /usr/src/../tools/bin/nbmake realall > *** Error code 1 > > Stop. > nbmake[10]: stopped in > /usr/src/external/mit/xorg/share/fonts/misc/font-misc-misc > > > is the issue "Signal 6", what is going wrong? > > > Thanks, Riccardo
Re: building current - signal 6
In article <572a7735.5040...@libero.it>, Riccardo Mottola wrote: >Hi Erik, > >Erik Fair wrote: >> Transient errors always worry me. > >me too. It means you can't reproduce what failed and are left with the >doubt that it could hunt you down again. > >I am running a current kernel This is caused by ASLR (that is why it is random). I will add some debugging to figure out the exact conditions that cause it to happen. christos
Re: building current - signal 6
Hi Erik, Erik Fair wrote: Transient errors always worry me. me too. It means you can't reproduce what failed and are left with the doubt that it could hunt you down again. I am running a current kernel Riccardo
building current - signal 6
Hi, when I build current on amd64, my build fails with: #create font-misc-misc/6x12-ISO8859-4.bdf /usr/src/../obj/external/mit/xorg/tools/ucs2any/ucs2any /usr/xsrc/external/mit/font-misc-misc/dist/6x12.bdf /usr/src/../obj/destdir.amd64/usr/X11R7/lib/X11/fonts/util/map-ISO8859-4 ISO8859-4 Writing 223 characters into file '6x12-ISO8859-4.bdf'. #create font-misc-misc/6x12-ISO8859-4.pcf.gz rm -f 6x12-ISO8859-4.pcf.gz *** Signal 6 Stop. nbmake[11]: stopped in /usr/src/external/mit/xorg/share/fonts/misc/font-misc-mis c *** Failed target: dependall *** Failed command: cd "/usr/src/external/mit/xorg/share/fonts/misc/font-misc-misc"; /usr/src/../tools/bin/nbmake realall *** Error code 1 Stop. nbmake[10]: stopped in /usr/src/external/mit/xorg/share/fonts/misc/font-misc-misc is the issue "Signal 6", what is going wrong? Thanks, Riccardo
