Date: Tue, 2 Dec 2008 15:38:13 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Mike Tancsa <mike@sentex.net> Cc: freebsd-stable@freebsd.org Subject: Re: repeatable crash on RELENG7 Message-ID: <20081202133812.GY3045@deviant.kiev.zoral.com.ua> In-Reply-To: <200812021319.mB2DJGJx003807@lava.sentex.ca> References: <200812021319.mB2DJGJx003807@lava.sentex.ca>
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--8bLSEqNM5P+Jqlqx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Dec 02, 2008 at 08:19:17AM -0500, Mike Tancsa wrote: > While trying to speed up nanobsd builds, I mounted /usr/obj on a=20 > ramdisk and found my box crashing. Thinking it might be hardware, I=20 > tried a separate machine, but with the same results. I have 4G of=20 > ram (i386). Am I just running out of some kernel memory ? If so, is=20 > there anything I can adjust to prevent this, yet still use mfs in this wa= y ? >=20 > mdconfig -a -t malloc -s 1800M You cannot have ~ 2Gb of kernel memory allocated for md, at least not on i386. > newfs /dev/md0 > mount /dev/md0 /usr/obj/ > time make -j4 buildworld > /var/log/build.out >=20 >=20 > in the middle of the buildworld on the serial console (after adding=20 > witness etc) >=20 > g_vfs_done():md0[WRITE(offset=3D1752924160, length=3D6144)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1752952832, length=3D4096)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1753006080, length=3D14336)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1753020416, length=3D2048)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1753202688, length=3D81920)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1191755776, length=3D131072)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1191886848, length=3D131072)]error =3D 28 > g_vfs_done():md0[WRITE(offset=3D1192017920, length=3D131072)]error =3D 28 > panic: kmem_malloc(4096): kmem_map too small: 335544320 total allocated > cpuid =3D 1 > KDB: enter: panic > [thread pid 15139 tid 100160 ] > Stopped at kdb_enter_why+0x3a: movl $0,kdb_why > db> > db> bt > Tracing pid 15139 tid 100160 td 0xc7a85af0 > kdb_enter_why(3231417278,3231417278,3231555983,3911968708,1,...) at=20 > kdb_enter_why+58 > panic(3231555983,4096,335544320,3231555977,2000,...) at panic+310 > kmem_malloc(3242659980,4096,258,3911968860,3230390816,...) at=20 > kmem_malloc+640 > page_alloc(3242544416,4096,3911968847,258,3242544416,...) at page_alloc+39 > slab_zalloc(3228209884,3242551688,8,3231552877,1878,...) at slab_zalloc+1= 92 > uma_zone_slab(3242551688,0,3231552877,1878,4,...) at uma_zone_slab+324 > uma_zalloc_arg(3242544416,0,258,3349699312,3911969228,...) at=20 > uma_zalloc_arg+1395 > ffs_vget(3333761124,922776,2,3911969228,3911969240,...) at ffs_vget+168 > ufs_lookup(3911969308,3343471972,3911969744,3343471972,3911969340,...)=20 > at ufs_lookup+2555 > VOP_CACHEDLOOKUP_APV(3232100544,3911969308,3911969744,3911969724,33350259= 20,...)=20 > at VOP_CACHEDLOOKUP_APV+165 > vfs_cache_lookup(3911969440,3911969440,3911969704,3343471972,2,...)=20 > at vfs_cache_lookup+208 > VOP_LOOKUP_APV(3232100544,3911969440,3349699312,3231462256,681,...)=20 > at VOP_LOOKUP_APV+165 > lookup(3911969704,3231462256,198,191,3343637548,...) at lookup+1422 > namei(3911969704,3911969608,96,0,3349699312,...) at namei+843 > kern_stat(3349699312,672272928,0,3911969816,93,...) at kern_stat+61 > stat(3349699312,3911970044,8,3231440732,3231973120,...) at stat+47 > syscall(3911970104) at syscall+691 > Xint0x80_syscall() at Xint0x80_syscall+32 > --- syscall (188, FreeBSD ELF32, stat), eip =3D 134726611, esp =3D=20 > 3217021740, ebp =3D 3217021864 --- > db> >=20 >=20 > -------------------------------------------------------------------- > Mike Tancsa, tel +1 519 651 3400 > Sentex Communications, mike@sentex.net > Providing Internet since 1994 www.sentex.net > Cambridge, Ontario Canada www.sentex.net/mike >=20 > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" --8bLSEqNM5P+Jqlqx Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkk1OkQACgkQC3+MBN1Mb4ihJQCgt3cTuPKUIud/cbrcc8vqGczn SaUAoNRMr+MdpeNfeqXIzd198eg7IpaU =dUfW -----END PGP SIGNATURE----- --8bLSEqNM5P+Jqlqx--
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