Date: Sun, 05 Apr 2009 21:54:19 -0700 From: Xin LI <delphij@delphij.net> To: Victor Sudakov <vas@mpeks.tomsk.su>, freebsd-stable@freebsd.org Subject: Re: Failure to make world for RELENG_6_4 Message-ID: <49D98AFB.2050308@delphij.net> In-Reply-To: <20090406043945.GA84052@admin.sibptus.tomsk.ru> References: <20090402044358.GA34249@admin.sibptus.tomsk.ru> <20090406020446.GD78037@admin.sibptus.tomsk.ru> <49D96475.2070309@delphij.net> <20090406043945.GA84052@admin.sibptus.tomsk.ru>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Victor Sudakov wrote: > Xin LI wrote: >>>> misc/133264 >>> This one however is not so simple. I have tried building world under >>> VMWare ESXi 3.5.0 Update 3 (FreeBSD as a guest OS) and the building >>> process crashed occasionally if more than 1 CPU is allocated to the >>> virtual machine. The failures are due to various processes like sh, >>> sed or cc1 dupming core on signal 11 during the build. >>> >>> The problem seems to be SMP related because enabling only 1 virtual >>> CPU removes the problem. Of course it is also VMWare related. >> - From what you have described, it's likely that there is some memory >> issue. The FreeBSD Virtual Memory system tends to use all physical >> memory and this could be a problem for faulty memory chips (i.e. it's >> more easy for FreeBSD to trigger problems). > > How is this connected with the number of virtual CPUs? > When I give only 1 CPU to the virtual machine, the problem is gone. > >> If you have access to the host system and possible, would you please try >> to install FreeBSD directly and see if the problem still occurs? > > Sorry, I cannot do that. This host is already running several Windows > servers and has been thoroughly tested before production use. > > I have however run Memtest-86 v3.2 in the virtual machine for > 2 hours and it has found no errors. No, memtest is known to be weaker than a 'make world'. According to kan@, it looks like a bug in FreeBSD 6.x :( unfortunately. The good news is that the problem has been fixed in 7.x series. Cheers, - -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (FreeBSD) iEYEARECAAYFAknZivsACgkQi+vbBBjt66Ag+QCeKj/hsbvPLuiKa65iLsxWj5lt 0JEAnjWtwrGKX11P8h9W2ATmO13dwFT7 =ZVZj -----END PGP SIGNATURE-----
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