Date: Thu, 24 Jul 2008 00:20:54 +0400 (MSD) From: Chagin Dmitry <chagin.dmitry@gmail.com> To: "Sean C. Farley" <scf@freebsd.org> Cc: freebsd-emulation@freebsd.org Subject: Re: kern/122318 (CMake core dumping, chroot exiting) Message-ID: <alpine.BSF.1.10.0807240016340.28898@ora.chd.net> In-Reply-To: <alpine.BSF.1.10.0807231459030.12600@thor.farley.org> References: <alpine.BSF.1.10.0807231236140.12600@thor.farley.org> <20080723184450.GA25356@freebsd.org> <alpine.BSF.1.10.0807231459030.12600@thor.farley.org>
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On Wed, 23 Jul 2008, Sean C. Farley wrote: > On Wed, 23 Jul 2008, Roman Divacky wrote: > >> On Wed, Jul 23, 2008 at 12:50:51PM -0500, Sean C. Farley wrote: >>> I am seeing if anyone has any insight on this PR (kern/122318[1]). >>> It would be nice to once again build using cmake within a Linux >>> chroot. :) >>> >>> Basically, the bug is that not only that cmake is dumping core; it is >>> also forcing the user out of the chroot environment. Here is the >>> command used to start the chroot: >>> /compat/linux/usr/sbin/chroot <chroot path> su - <build user> >>> >>> 1. http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/122318 >> >> looking at the trace you provided I guess this is what's going on: >> >> cmake forks/execs gcc and waits to be notified about the success of >> the command it tried, the notification comes (the SIGCHLD) the handler >> tries do something and then returns and now something is wrong and it >> receives the SIGSEGV.. >> >> or am I wrong and linux_ktrace does not translate signals and the >> SIGCHLD is in fact SIGTSTP? >> >> what is the fd 3 and 4? can you provide full ktrace.out? > > I have the full output of the execution here using ktrace -d: > http://www.farley.org/freebsd/tmp/cmake-kdump.txt > > Sean > hi! Please, can you run ktrace with -i flag? thnx! -- Have fun! chd
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