Messages in this thread | | | Date | Sun, 19 Apr 1998 15:08:03 -0500 (CDT) | From | Robert HYATT <> | Subject | Re: [SMP patch] io-apic-patch-2.1.97-A |
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sorry... when I said "kerneld" I wasn't thinking... I meant either /var/log/messages or /var/log/syslog or wherever you have your syslog.conf set to send kernel messages...
Bob
Robert Hyatt Computer and Information Sciences hyatt@cis.uab.edu University of Alabama at Birmingham (205) 934-2213 115A Campbell Hall, UAB Station (205) 934-5473 FAX Birmingham, AL 35294-1170
On Sun, 19 Apr 1998, Bill Broadhurst wrote:
> On Sun, Apr 19, 1998 at 12:28:32PM -0500, Robert HYATT wrote: > > > > On Sun, 19 Apr 1998, Bill Broadhurst wrote: > > > > > > > > 1. Processes mysteriously die during a long (more than 2 hour) > > > comple. The dead process can't be killed and shows 'D' in > > > ps. If that process happens to be linked to a device, that > > > device is continually 'busy' and only a reboot can free it. > > > Any other process that touches the 'busy' device also dies. > > > If this device is the root file system, the system processes > > > will also (eventually) die, leaving the system in a "hung" > > > state. No net access is possible and the Magic SysRq keys > > > work (sorta) most of the time. <Magic-boot usually does.> > > > This happens 100% of the time during a long modeling program or > > > when re-compiling the entire X package. > > > > > > This symptom started at 2.1.85 and continues. It happens sooner on > > > kernels and later on others. It happens on all my systems. I'll list > > > them later. > > > > > > you should check the kerneld logfile, to see if you see any sort of > > message like "eth0: TX timed out..." I get this and my machine hangs, > > but not "hard". No net traffic, can't start new processes nor exit > > old ones, but somethings "sorta" work for a bit... > > No Kerneld logfile. No kerneld. No kmod. I don't use dynamic module > loading. All modules here are loaded at boot time by insmod and > remain loaded. Soon I'll put all the modules back into the kernel. > > > > > I've tracked this to high ethernet traffic blowing out the ethpro100 > > driver, getting it into a state from which it can't recover. It's been > > there a *long* time, but got *really* bad in 96-pre1 and 96, although I > > can't try 97 until tomorrow sometime... unless I build and boot from > > home tonite (I hate doing this because if the boot hangs, it's a 20+ > > mile drive in to my office to unhang it..) > > > > Only one Intel NIC and that's on a low-traffic system as I had the same > troubles with the driver as did you. No Ethernet hangs at all. > > > > > > > > > 2. On 2.1.96/7 the system will hang *hard* during a tape backup to > > > the SCSI tapes. This also happens 100% of the time on the units with > > > tape drives. (Also doesn't matter whether the drive being backed up > > > is local or on another machine on the net. All tapes are on > > > BusLogic BT930 controllers of various vintages. I did move one to > > > my remaining Adaptec controller but it does the same thing but much > > > further into the tape. > > > > > > > SCSI has a definite problem in 2.1.96. I found I could not copy a large > > file from one SCSI drive to another (large=200-500mb) without the machine > > hanging *hard*. I backed up to 2.1.85 (the only older kernel I happened > > to have saved in a handy place) and the SCSI copies went perfectly with > > no problems at all. So something is "up" in 96 for certain, at least with > > the combination of the bt958 SCSI and etherexpress Pro 100 ethernet > > card. Sendmail would forward me a few email messages, it would hang. I'd > > try to ftp a 20mb file from one machine to my quad processor (on a > > switched hub which provides good thruput) and it would hang... And then > > I found I couldn't even copy files from one drive to another reliably... > > > > Agreed. And it continues into 2.1.97. I just hung the system *hard* > by copying a 19M log file. > > > > > > > > > > As noted, this symptom began, (I think) at 2.1.96 but I'll have to > > > verify this as most backups have been made on a non-intel machine over > > > the net since 2.1.88. I did a restore of about 200M of files on this > > > machine under 2.1.95 without incident. > > > > > > > -bb > > -- > ---------------------------------------------------------------------- > Dr. Bill Broadhurst | Independent contract Engineer. > (619)296-3710 | BIOS, Firmware, & Diagnostics. > bbroad@CX492564-a.dt1.sdca.home.com | Finger for PGP 5.0 public key. > ---------------------------------------------------------------------- >
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