Date: Fri, 30 Sep 2005 15:04:03 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Listas <listas@informatica.info> Cc: freebsd-current@freebsd.org Subject: Re: Losing ssh session when doing intensive disk I/O & background fsck with RELENG_6 Message-ID: <20050930190403.GA93829@xor.obsecurity.org> In-Reply-To: <433D8B12.9020801@informatica.info> References: <433D8B12.9020801@informatica.info>
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--h31gzZEtNLTqOjlF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 30, 2005 at 08:59:30PM +0200, Listas wrote: > I'm testing BETA5/RELENG_6 with an Intel P4 system. Here are the=20 > essential dmesg fragments with system information: >=20 > --- > ACPI APIC Table: <A M I OEMAPIC > > Timecounter "i8254" frequency 1193182 Hz quality 0 > CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (3010.67-MHz 686-class CPU) > Origin =3D "GenuineIntel" Id =3D 0xf34 Stepping =3D 4 > Features=3D0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PG= E,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > Features2=3D0x441d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,<b14>> > real memory =3D 1073414144 (1023 MB) > avail memory =3D 1041526784 (993 MB) > ioapic0 <Version 2.0> irqs 0-23 on motherboard > [...] > xl0: <3Com 3c905B-TX Fast Etherlink XL> port 0xb800-0xb87f mem=20 > 0xcddffc00-0xcddffc7f irq 17 at device 9.0 on pci1 > miibus0: <MII bus> on xl0 > xlphy0: <3Com internal media interface> on miibus0 > xlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto > xl0: Ethernet address: 00:01:02:a6:96:37 > [...] > acd0: DMA limited to UDMA33, controller found non-ATA66 cable > acd0: DVDR <HL-DT-ST DVDRAM GSA-4160B/A300> at ata0-master UDMA33 > ad8: 194481MB <Maxtor 6B200M0 BANC1980> at ata4-master SATA150 > ad8: Intel calc=3D55e037a4 meta=3D2af01bd2 > ad10: 194481MB <Maxtor 6B200M0 BANC1980> at ata5-master SATA150 > ad10: Intel calc=3D55e037a4 meta=3D2af01bd2 > ar0: 194480MB <Intel MatrixRAID RAID1> status: READY > ar0: disk0 READY (master) using ad8 at ata4-master > ar0: disk1 READY (mirror) using ad10 at ata5-master > Trying to mount root from ufs:/dev/ar0s1a > Loading configuration files. > No suitable dump device was found. > Entropy harvesting: > interrupts > ethernet > point_to_point > kickstart > . > swapon: adding /dev/ar0s1b as swap device > --- >=20 > The boot process is trying to configure the dump device before swapon=20 > and it fails, but that's not the real problem I report here. It's not clear that it's a problem at all. dump devices don't have to be pre-existing swap devices. If you tell your kernel to dump on /dev/ar0s1b it should be fine. > The problem is that when I do some intensive disk I/O (make install, du= =20 > -ckx /usr, etc.) just after booting, I lose my ssh connection to the=20 > machine, and may spend a lot to reconnect. It seems that this only=20 > happens while a background fsck is running. Don't know about this. Kris --h31gzZEtNLTqOjlF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDPYwiWry0BWjoQKURAs+eAJ0TGDuO1AIedMF5ymw8u0mAoNXiawCgiu6U di1TTqZQaxngLcvAtxvFcHk= =OwOK -----END PGP SIGNATURE----- --h31gzZEtNLTqOjlF--
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